Amplifier Built-in / DC 3-wire Type
Cylindrical Inductive Proximity Sensor
GX-300 SERIES
Recognition
Small-diameter type
only. Excluding bendingresistant cable type.
Listing
(Excluding small-diameter type)
Standard Type Cylindrical Inductive Proximity Sensors
with Improved Basic Performance
Visible
fro
m
ections
dir
all
IO-Link compatible Sensor Models in Lineup
M8 / M12 / M18 / M30 Threaded Type
PNP Output, Normally Open Type
* Switchable to Normally Closed Type
2020.11 industrial.panasonic.com/ac/e/
Standard type cylindrical inductive
proximity sensors with improved
basic performance
GX-300 series
Improved basic performance
Response frequency of 5 kHz* allows the use of high-speed application
* In the case of GX-303S
The GX-303S boasts a response frequency of 5 kHz and realizes high speed response.
The response frequency of other sensor models has been also improved by up to 4 times as compared to
our conventional models.
Since the GX-300 series responds quickly to sensor ON/OFF judgement, it works well with a high-speed
application and contributes to the reduction of equipment cycle time.
Typical examples (Shielded type)
Type
Response
frequency of our
conventional model
ø3 mm ø0.118 in
—
ø4 mm ø0.157 in
Significant
improvement
over
conventional
models!
Response frequency of
GX-300 standard
sensing range type
5 kHz (GX-303S)
1 kHz
4 times
4 kHz (GX-304S)
ø5.4 mm ø0.213 in
1.5 kHz
2.7 times
4 kHz (GX-305S)
M5 threaded
1 kHz
4 times
4 kHz (GX-305M)
M8 threaded
1 kHz
2 times
2 kHz (GX-308M)
M12 threaded
450 Hz
3.3 times
1,500 Hz (GX-312M)
M18 threaded
300 Hz
2 times
600 Hz (GX-318M)
* Conventional model:
ø3.8 / ø4.4 mm ø0.150 / ø0.173 in
What is response frequency?
A rotating plate having the standard sensing object pasted at
constant intervals is placed in front of the proximity sensor. The
plate is rotated while observing the sensing output. The maximum
number of times per second at which sensing can be done, for
which the corresponding sensing output can be obtained, is the
maximum response frequency.
In other words, the larger the numeric value of the response
frequency is, the faster the response is.
Example) Conversion of response frequency to response speed
1 kHz → 1-ms cycle
5 kHz → 0.2-ms cycle
2
a
2a
Standard sensing object
a
Inductive
proximity
sensor
a: Side length of standard sensing object
50% of maximum
operation distance
GX-300 SERIES
Enhanced a degree of the detection margin
Sensing over long distance
The M8 / M12 / M18 / M30 threaded type sensors are available in standard sensing range type or long
sensing range type (“K” at the end of model No.).
The long sensing range means reliable detection with plenty of performance margin to spare.
Sensing range comparison
Conventional model: 10 mm 0.394 in
M30 threaded type,
shielded type
Standard sensing range type: 10 mm 0.394 in
Long sensing range type: 15 mm 0.591 in
Conventional model: 22 mm 0.866 in
M30 threaded type,
non-shielded type
Standard sensing range type: 18 mm 0.709 in
Long sensing range type:
30 mm 1.181 in
Minimum risk of collision or sensing error even if the
distance to the sensing object changes due to
equipment vibration
If the distance to the sensing object changes due
to equipment vibration or time-related degradation,
the sensor may generate sensing errors including
sensing failure in some cases.
If the sensor is set up very close to the sensing
object for the purpose of preventing detecting
failures, the sensor may contact the sensing object
and cause damage.
The long sensing range models facilitate the
sensor setup for reliable sensing since they detect
the sensing object at a long distance.
Positioning
processing
equipment
The distance to the dog becomes longer
Conventional due to equipment vibration and the sensor
model
may fail to detect the sensing object.
Conventional model
1 mm 0.039 in
Maximum
operation distance
Dog
GX-308MK
GX-300
Sensing
error
The long sensing range model can
perform sensing over long distance to
ensure stable detection.
GX-308MK
2 mm 0.079 in
Maximum
operation distance
Stable
detection
Reduced variation in maximum operation distance
With the GX-300 series, variation in maximum operation distance is kept within ±10%
* ±15% in the case of the previous GX series.
Variation in the maximum operation distance of the ø3 / ø4 / ø5.4 mm ø0.118 / ø0.157 / ø0.213 in, M5 / M8 threaded
type models has been also reduced as compared to the conventional models.
3
Improved usability
Indicator visible 360 degrees
The indicator is conveniently visible from any direction, thus facilitating installation check and operation confirmation.
Conventional model
GX-300
If the operation indicator position is adjusted to make the
indicator visible, the sensor distance changes.
In the small-diameter type sensors, the indicator light is visible
at 4 locations. In the M8 and larger threaded type sensors, the
high-brightness indicator and the resin containing dispersing
agent allow the confirmation of the indicator from any angle to
facilitate the cumbersome adjustment of installation position.
GX-N series
Small-diameter type
Ind
from ica
an
Indicator
light visible
at 4 locations
Indicator
visible only
at 1 location
GX series
ible
vis ection
r
r
to di
y
M8 / M12 / M18 / M30 threaded type
* The operation indicator flashes in green
during I/O-Link communication.
Further reduction of the size of small-diameter type sensors for easier embedment
The small-diameter type sensors are 25.1 mm 0.988 in in depth while the conventional models measured 30 mm 1.181 in.
(GX-303S measures 27.1 mm 1.067 in in depth.)
The reduced unit size enables the installation of
Comparison of depth dimensions
the sensor in a smaller space.
of small-diameter type sensors
Conventional
model
(GX-5S)
30 mm
1.181 in
25.1 mm
0.988 in
GX-305S
Type
Our conventional
model
GX-300
ø3.0 mm ø0.118 in
‒
27.1 mm 1.067 in
ø3.8 mm ø0.150 in
30 mm 1.181 in
‒
ø4.0 mm ø0.157 in
‒
25.1 mm 0.988 in
ø4.4 mm ø0.173 in
30 mm 1.181 in
‒
ø5.4 mm ø0.213 in
30 mm 1.181 in
25.1 mm 0.988 in
M5 thread
30 mm 1.181 in
Threaded section:
18 mm 0.709 in
25.1 mm 0.988 in
Threaded section:
15.1 mm 0.594 in
Depth reduced by 16%
Extensive model lineup
The GX-300 series includes 310 different sensor models.
We offer various types of sensor models such as the cable type (cable length: 2 m 6.562 ft or 5 m 16.404 ft),
connector type and pigtailed type. Furthermore, we can supply bending-resistant cable type models (cable length:
2 m 6.562 ft or 5 m 16.404 ft), which are suitable for installation on moving parts.
(For the detail of our model lineup, see page 6 and following pages.)
Cable type
4
Connector type
Pigtailed type
GX-300 SERIES
Suitable for IoT applications
IO-Link compatibility
What is “IO-Link”?
Evolution from ON/OFF judgment sensors to
sensors capable of transmitting the detection
level and sensor status information
IO‑Link is an open communication technology
according to IEC 61131-9 for the 1:1 bidirectional
communication between the IO‑Link device (sensor
or actuator) and the IO‑Link master.
* Only the M8 / M12 / M18 / M30 threaded type, PNP output, normally open type models are
compatible with IO-Link.
IO-Link compatible sensors can also be used as ordinary sensors (PNP output type).
[+]
[‒]
Transmission of ON/OFF signal to host device such as PLC
Tr output
GX-312M-A-P
ON
OFF
W
hen IO-Link compatible sensors are connected to the IO-Link master, they can transmit not only ON/OFF signal
odbus
Modbus
but alsoM
sensor
information and operation mode switching information in both ways. So, the sensors can be
TCP level
TCP
utilized for the visualization of manufacturing operations or for the incorporation of IoT technology.
■Typical field network
To PLC
To PLC
*CC-Link IE Field and CC-Link are trademarks of Mitsubishi Electric
Corporation, and are controlled by the CC-Link Partner Association.
DeviceNet and EtherNet/IP are registered trademarks of ODVA
(Open DeviceNet Vender Association, Inc.).
EtherCAT is a registered trademark of Beckhoff Automation GmbH.
Modbus is a registered trademark of Schneider Automation, Inc.
IO-Link Master Unit
for CC-Link IE Field
SC-LG2-CEF-P
master
Green indicator flashes in 1-second
intervals during I/O-Link
communication.
GX-312M-A-P
IO-Link usage example 2
IO-Link usage example 1
Using the process data, the sensor transmits
the detection level (8 bits) to the host device
over IO-Link.
ON/OFF signal
+
Sensor
information
The IO-Link device has an IODD (IO
Device Description) file containing
identification information such as the
device vendor’s name and model
number. Workers on the
manufacturing floor can load and
utilize this information.
Operation mode switching
information
N.O.
IO-Link usage example 3
Wire disconnection
When wire breakage or short-circuit occurs, the
sensor notifies the host device by using the IO-Link
event notification function. This enables quick
identification of malfunctioning part to ensure smooth
maintenance.
N.C.
IO-Link usage example 4
The operation mode can be toggled
between N.O. and N.C. using IO-Link
communication.
5
GX-300
ORDER GUIDE
Model No.
GX-3 08 M L
K - A - N -C5
Size
03: ø3.0 mm ø0.118 in 04: ø4.0 mm ø0.157 in
05: ø5.4 mm ø0.213 in / M5
08: M8
12: M12
18: M18
30: M30
Connecting method
None: Standard 2 m 6.562 ft cable
-C5: Standard 5 m 16.404 ft cable
-R: Bending-resistant 2 m 6.562 ft cable
-R5: Bending-resistant 5 m 16.404 ft cable
-J:
Pigtailed type
-Z: Connector type
Shape
S: Non-threaded type M: Threaded type
Output
N: NPN output
P: PNP output
Shielded / Non-shielded
None: Shielded
L: Non-shielded type
Sensing range
None: Standard sensing range
Operating mode
A: Normally open
B: Normally closed
K: Long sensing range
DC 3-wire type (Small-diameter, shielded type)
Type
Appearance (mm in)
Sensing range (Note)
Model No.
GX-303S-A-N
0.8 mm
0.031 in
ø3
ø0.118
27.1
1.067
0 to 0.56 mm
0 to 0.022 in
Max. operation distance
Stable sensing range
GX-303S-B-N
GX-303S-A-P
Non-threaded type
Small-diameter, shielded type
GX-303S-B-P
GX-304S-A-N
ø4
ø0.157
25.1
0.988
1.2 mm 0.047 in
GX-304S-B-N
(0 to 0.84 mm 0 to 0.033 in)
GX-304S-A-P
GX-304S-B-P
GX-305S-A-N
ø5.4
ø0.213
25.1
0.988
1 mm 0.039 in
GX-305S-B-N
(0 to 0.7 mm 0 to 0.028 in)
GX-305S-A-P
GX-305S-B-P
Threaded type
GX-305M-A-N
M5
25.1
0.988
1.2 mm 0.047 in
GX-305M-B-N
(0 to 0.84 mm 0 to 0.033 in)
GX-305M-A-P
GX-305M-B-P
Output
NPN open-collector
transistor
PNP open-collector
transistor
NPN open-collector
transistor
PNP open-collector
transistor
NPN open-collector
transistor
PNP open-collector
transistor
NPN open-collector
transistor
PNP open-collector
transistor
Output operation
Normally open
Normally closed
Normally open
Normally closed
Normally open
Normally closed
Normally open
Normally closed
Normally open
Normally closed
Normally open
Normally closed
Normally open
Normally closed
Normally open
Normally closed
Note: The maximum operation distance stands for the maximum distance for which the sensor can detect the standard sensing object.
The stable sensing range stands for the sensing range for which the sensor can stably detect the standard sensing object even if there is an ambient
temperature drift and/or supply voltage fluctuation.
6
GX-300
ORDER GUIDE
DC 3-wire type (Shielded type)
Type
Appearance (mm in)
Sensing range (Note 1)
Model No.
(Note 2)
GX-308M-A-N
1.5 mm
0.059 in
M8
37.8
1.488
Max. operation distance
0 to 1.2 mm
0 to 0.047 in
Stable sensing range
GX-308M-B-N
GX-308M-A-P
GX-308M-B-P
Standard sensing range type
GX-312M-A-N
M12
47.1
1.854
2 mm 0.079 in
GX-312M-B-N
(0 to 1.6 mm 0 to 0.063 in)
GX-312M-A-P
GX-312M-B-P
GX-318M-A-N
M18
55.3
2.177
5 mm 0.197 in
GX-318M-B-N
(0 to 4 mm 0 to 0.157 in)
GX-318M-A-P
GX-318M-B-P
GX-330M-A-N
Shielded type
Threaded type
M30
60.3
2.374
10 mm 0.394 in
GX-330M-B-N
(0 to 8 mm 0 to 0.315 in)
GX-330M-A-P
GX-330M-B-P
GX-308MK-A-N
M8
37.8
1.488
2 mm 0.079 in
GX-308MK-B-N
(0 to 1.6 mm 0 to 0.063 in)
GX-308MK-A-P
GX-308MK-B-P
GX-312MK-A-N
Long sensing range type
4 mm 0.157 in
M12
47.1
1.854
(0 to 3.2 mm 0 to 0.126 in)
GX-312MK-B-N
GX-312MK-A-P
GX-312MK-B-P
GX-318MK-A-N
8 mm 0.315 in
M18
55.3
2.177
(0 to 6.4 mm 0 to 0.252 in)
GX-318MK-B-N
GX-318MK-A-P
GX-318MK-B-P
GX-330MK-A-N
15 mm 0.591 in
M30
60.3
2.374
(0 to 12 mm 0 to 0.472 in)
GX-330MK-B-N
GX-330MK-A-P
GX-330MK-B-P
Output
NPN open-collector
transistor
PNP open-collector
transistor
NPN open-collector
transistor
PNP open-collector
transistor
NPN open-collector
transistor
PNP open-collector
transistor
NPN open-collector
transistor
PNP open-collector
transistor
NPN open-collector
transistor
PNP open-collector
transistor
NPN open-collector
transistor
PNP open-collector
transistor
NPN open-collector
transistor
PNP open-collector
transistor
NPN open-collector
transistor
PNP open-collector
transistor
Output operation
Normally open
Normally closed
Normally open
Normally closed
Normally open
Normally closed
Normally open
Normally closed
Normally open
Normally closed
Normally open
Normally closed
Normally open
Normally closed
Normally open
Normally closed
Normally open
Normally closed
Normally open
Normally closed
Normally open
Normally closed
Normally open
Normally closed
Normally open
Normally closed
Normally open
Normally closed
Normally open
Normally closed
Normally open
Normally closed
Notes: 1) The maximum operation distance stands for the maximum distance for which the sensor can detect the standard sensing object.
The stable sensing range stands for the sensing range for which the sensor can stably detect the standard sensing object even if there is an ambient
temperature drift and/or supply voltage fluctuation.
2) The PNP output, normally open type models [GX-3□M(K)-A-P(-□)] are compatible with IO-Link.
The PNP output, normally closed type models and all NPN output type models do not support IO-Link.
7
GX-300
ORDER GUIDE
DC 3-wire type (Non-shielded type)
Type
Appearance (mm in)
Sensing range (Note 1)
Model No.
(Note 2)
GX-308ML-A-N
2 mm
0.079 in
M8
37.8
1.488
Max. operation distance
0 to 1.6 mm
0 to 0.063 in
Stable sensing range
GX-308ML-B-N
GX-308ML-A-P
GX-308ML-B-P
Standard sensing range type
GX-312ML-A-N
M12
47.1
1.854
5 mm 0.197 in
GX-312ML-B-N
(0 to 4 mm 0 to 0.157 in)
GX-312ML-A-P
GX-312ML-B-P
GX-318ML-A-N
M18
55.3
2.177
10 mm 0.394 in
GX-318ML-B-N
(0 to 8 mm 0 to 0.315 in)
GX-318ML-A-P
GX-318ML-B-P
GX-330ML-A-N
M30
Threaded type
Non-shielded type
18 mm 0.709 in
60.3
2.374
GX-330ML-B-N
GX-330ML-A-P
(0 to 14.4 mm 0 to 0.567 in)
GX-330ML-B-P
GX-308MLK-A-N
4 mm 0.157 in
M8
37.8
1.488
GX-308MLK-B-N
GX-308MLK-A-P
(0 to 3.2 mm 0 to 0.126 in)
GX-308MLK-B-P
GX-312MLK-A-N
Long sensing range type
8 mm 0.315 in
M12
47.1
1.854
GX-312MLK-B-N
GX-312MLK-A-P
(0 to 6.4 mm 0 to 0.252 in)
GX-312MLK-B-P
GX-318MLK-A-N
16 mm 0.630 in
M18
55.3
2.177
GX-318MLK-B-N
GX-318MLK-A-P
(0 to 12.8 mm 0 to 0.504 in)
GX-318MLK-B-P
GX-330MLK-A-N
30 mm 1.181 in
M30
82.3
3.240
(0 to 24 mm 0 to 0.945 in)
GX-330MLK-B-N
GX-330MLK-A-P
GX-330MLK-B-P
Output
NPN open-collector
transistor
PNP open-collector
transistor
NPN open-collector
transistor
PNP open-collector
transistor
NPN open-collector
transistor
PNP open-collector
transistor
NPN open-collector
transistor
PNP open-collector
transistor
NPN open-collector
transistor
PNP open-collector
transistor
NPN open-collector
transistor
PNP open-collector
transistor
NPN open-collector
transistor
PNP open-collector
transistor
NPN open-collector
transistor
PNP open-collector
transistor
Output operation
Normally open
Normally closed
Normally open
Normally closed
Normally open
Normally closed
Normally open
Normally closed
Normally open
Normally closed
Normally open
Normally closed
Normally open
Normally closed
Normally open
Normally closed
Normally open
Normally closed
Normally open
Normally closed
Normally open
Normally closed
Normally open
Normally closed
Normally open
Normally closed
Normally open
Normally closed
Normally open
Normally closed
Normally open
Normally closed
Notes: 1) The maximum operation distance stands for the maximum distance for which the sensor can detect the standard sensing object.
The stable sensing range stands for the sensing range for which the sensor can stably detect the standard sensing object even if there is an ambient
temperature drift and/or supply voltage fluctuation.
2) The PNP output, normally open type models [GX-3□ML(K)-A-P(-□)] are compatible with IO-Link.
The PNP output, normally closed type models and all NPN output type models do not support IO-Link.
8
GX-300
ORDER GUIDE
5 m 16.404 ft cable length type
5 m 16.404 ft cable length type (standard: 2 m 6.562 ft) is also available. When ordering this type, suffix “-C5” to the model No.
(e.g.) 5 m 16.404 ft cable length type of GX-303S-A-N is “GX-303S-A-N-C5”.
Bending-resistant cable type (2 m 6.562 ft / 5 m 16.404 ft cable length)
The shielded, non-threaded type sensors (ø4 mm ø0.157 in / ø5.4 mm ø0.213 in) and threaded type sensors (M5 / M8) are available with a bending-resistant
cable (cable length: 2 m 6.562 ft or 5 m 16.404 ft). (Note that the ø5.4 mm ø0.213 in size, normally closed type sensors are not available with a 5-m-long
bending-resistant cable.)
When ordering bending-resistant 2 m 6.562 ft cable type, suffix “-R” to the model No. When ordering bending-resistant 5 m 16.404 ft cable type, suffix “-R5” to
the model No.
(e.g.) Bending-resistant 2 m 6.562 ft cable type of GX-304S-A-N is “GX-304S-A-N-R”.
(e.g.) Bending-resistant 5 m 16.404 ft cable type of GX-304S-A-N is “GX-304S-A-N-R5”.
Pigtailed type
The threaded type sensors (M8 / M12 / M18 / M30) are available in the pigtailed type. (Connector: M12)
When ordering this type, suffix “-J” to the model No.
(e.g.) Pigtailed type of GX-308M-A-N is “GX-308M-A-N-J”.
Connector type
The threaded type sensors (M12 / M18 / M30) are available in the connector type. When ordering this type, suffix “-Z” to the model No.
(e.g.) Connector type of GX-312M-A-N is “GX-312M-A-N-Z”.
• List of connection systems
5 m 16.404 ft cable
length
(“-C5” at the end of
model No.)
Bending-resistant
2 m 6.562 ft cable
(“-R” at the end of
model No.)
Bending-resistant
5 m 16.404 ft cable
(“-R5” at the end of
model No.)
Pigtailed type
(“-J” at the end of
model No.) (Note)
Connector type
(“-Z” at the end of
model No.)
ø3.0 mm
ø0.118 in
Available
—
—
—
—
ø4.0 mm
ø0.157 in
Available
Available
Available
—
—
ø5.4 mm
ø0.213 in
Available
Available
Available
*Excluding normally
closed type
—
—
M5
Available
Available
Available
—
—
M8
Available
Available
Available
Available
—
M12
Available
—
—
Available
Available
M18
Available
—
—
Available
Available
M30
Available
—
—
Available
Available
M8
Available
—
—
Available
—
M12
Available
—
—
Available
Available
M18
Available
—
—
Available
Available
M30
Available
—
—
Available
Available
Type
Smalldiameter,
shielded type
Shielded type
Non-shielded
type
Note: Please purchase mating cables separately when using pigtailed type models.
• Mating cable
Model No.
Description
CN-24S-C2
Length: 2 m 6.562 ft
CN-24S-C5
Length: 5 m 16.404 ft
Note:
AWG20 4-core cable with M12 Smartclick connector on one end
Cable outside diameter: ø6 mm ø0.236 in
M12 connector
Mating cable
CN-24S-C2 (Length: 2 m 6.562 ft)
CN-24S-C5 (Length: 5 m 16.404 ft)
is a trademark of OMRON Corporation.
9
GX-300
SPECIFICATIONS
DC 3-wire type (Small-diameter, shielded type)
Small-diameter, shielded type
Type
Model No. Normally open
Item (Note 2) Normally closed
Regulatory compliance
Max. operation distance (Note 3)
Non-threaded type
Threaded type
GX-303S-A-□
GX-304S-A-□
GX-305S-A-□
GX-305M-A-□
GX-303S-B-□
GX-304S-B-□
GX-305S-B-□
GX-305M-B-□
CE Marking (EMC Directive, RoHS Directive), UL Recognition Certification (excluding bending-resistant cable type)
0.8 mm 0.031 in ±10 %
1.2 mm 0.047 in ±10 %
Stable sensing range (Note 3)
0 to 0.56 mm 0 to 0.022 in
Standard sensing object
Iron sheet 3 × 3 × t 1 mm
0.118 × 0.118 × t 0.039 in
Hysteresis
1.0 mm 0.039 in ±10 %
1.2 mm 0.047 in ±10 %
0 to 0.84 mm 0 to 0.033 in
0 to 0.7 mm 0 to 0.028 in
0 to 0.84 mm 0 to 0.033 in
Iron sheet 4 × 4 × t 1 mm
0.157 × 0.157 × t 0.039 in
Iron sheet 5.4 × 5.4 × t 1 mm
0.213 × 0.213 × t 0.039 in
Iron sheet 4 × 4 × t 1 mm
0.157 × 0.157 × t 0.039 in
15 % or less of operation distance (with standard sensing object)
Supply voltage (Note 4)
10 to 30 V DC [including 10 % ripple (p-p)]
Current consumption
Output (Note 5)
10 mA or less
NPN open-collector transistor
• Maximum sink current: 100 mA or less
(50 mA or less for GX-303S)
• Applied voltage: 30 V DC or less (between output to 0 V)
• Residual voltage: 2 V or less (Note 6) (at max. sink current)
Short-circuit protection
Response frequency (Note 7)
Incorporated
5 kHz
4 kHz
Operation indicator
Orange LED (lights up when the output is ON)
Pollution degree
3
Environmental resistance
Altitude
2,000 m 6561.68 ft or less
Protection
Ambient temperature
IP67 (IEC)
-25 to +70 °C -13 to +158 °F, Storage: -25 to +70 °C -13 to +158 °F (No condensation or icing allowed)
Ambient humidity
Voltage withstandability
PNP open-collector transistor
• Maximum source current: 100 mA or less
(50 mA or less for GX-303S)
• Applied voltage: 30 V DC or less (between output to +V)
• Residual voltage: 2 V or less (Note 6) (at max. source current)
35 to 95 % RH, Storage: 35 to 95 % RH (No condensation allowed)
500 V AC for one min. between all supply terminals connected together and enclosure
Insulation resistance
50 MΩ or more, with 500 V DC megger between all supply terminals connected together and enclosure
Vibration resistance
10 to 55 Hz frequency, 1.5 mm 0.059 in double amplitude in X, Y and Z directions for two hours each
500 m/s2 acceleration in X, Y and Z directions ten times each
Shock resistance
Temperature
Sensing range characteristics
variation
Voltage
characteristics
Within ±15 % of sensing range at +23 °C +73 °F in ambient temperature range
Within ±2.5 % for ±15 % fluctuation of the rated supply voltage
Enclosure: Stainless steel (SUS303) [Brass (Nickel plated) for GX-305S]
Sensing part: Heat-resistant ABS, Cable: Polyvinyl chloride (PVC)
Material
Mating cable
0.09 mm2 3-core ø2.4 mm
ø0.094 in cabtyre cable, 2 m
6.562 ft long
Weight (Note 6)
Net weight: 20 g approx.
Gross weight: 40 g approx.
Accessories
0.14 mm2 3-core ø2.9 mm ø0.114 in cabtyre cable, 2 m 6.562 ft long (Note 8)
Net weight: 25 g approx.
Gross weight: 50 g approx.
—
Net weight: 30 g approx.
Gross weight: 50 g approx.
Nut: 2 pcs.,
Toothed lock washer: 1 pc.
Notes: 1) Where measurement conditions have not been specified precisely, the conditions used were an ambient temperature of +23 °C +73 °F.
2) The sensors with “N” indicated instead of □ in their model Nos. are NPN output type. The sensors with “P” are PNP output type.
3) The maximum operation distance stands for the maximum distance for which the sensor can detect the standard sensing object.
The stable sensing range stands for the sensing range for which the sensor can stably detect the standard sensing object even if there is an ambient
temperature drift and/or supply voltage fluctuation.
4) When used at a power of 12 V, the product is less susceptible to the effects of internal self-heat generation and therefore a more stable repeat accuracy
can be obtained.
5) When the output is 20 mA or less, the product is less susceptible to the effects of internal self-heat generation and therefore a more stable repeat
accuracy can be obtained.
6) When the cable length is 2 m 6.562 ft.
7) The response frequency is an average value.
8) The bending-resistant cable type models come with a 0.15 mm2 3-core bending-resistant ø2.9 mm ø0.114 in cabtyre cable.
10
GX-300
SPECIFICATIONS
DC 3-wire type (Shielded type)
Shielded type
Type
Threaded type
Standard sensing range
Model Normally open GX-308M-A-□
No.
Item (Note 2) Normally closed GX-308M-B-□
Regulatory compliance
Max. operation distance
(Note 3)
Stable sensing range
(Note 3)
Standard sensing object
Hysteresis
Supply voltage
Current consumption
IO-Link
communication
Baud rate
Output
Process data
(C/Q)
Minimum
(Note 4)
cycle time
Vendor ID
Device ID
Long sensing range
GX-312M-A-□
GX-318M-A-□
GX-330M-A-□
GX-308MK-A-□ GX-312MK-A-□ GX-318MK-A-□ GX-330MK-A-□
GX-312M-B-□
GX-318M-B-□
GX-330M-B-□
GX-308MK-B-□ GX-312MK-B-□ GX-318MK-B-□ GX-330MK-B-□
CE Marking (EMC Directive, RoHS Directive), UL/c-UL Listing Certification
1.5 mm
2 mm
5 mm
10 mm
2 mm
4 mm
8 mm
15 mm
0.059 in ±10 % 0.079 in ±10 % 0.197 in ±10 % 0.394 in ±10 % 0.079 in ±10 % 0.157 in ±10 % 0.315 in ±10 % 0.591 in ±10 %
0 to 1.2 mm
0 to 1.6 mm
0 to 4 mm
0 to 8 mm
0 to 1.6 mm
0 to 3.2 mm
0 to 6.4 mm
0 to 12 mm
0 to 0.047 in
0 to 0.063 in
0 to 0.157 in
0 to 0.315 in
0 to 0.063 in
0 to 0.126 in
0 to 0.252 in
0 to 0.472 in
Iron sheet
Iron sheet
Iron sheet
Iron sheet
Iron sheet
Iron sheet
Iron sheet
Iron sheet
8 × 8 × t 1 mm 12 × 12 × t 1 mm 18 × 18 × t 1 mm 30 × 30 × t 1 mm 8 × 8 × t 1 mm 12 × 12 × t 1 mm 24 × 24 × t 1 mm 45 × 45 × t 1 mm
0.315 × 0.315
0.472 × 0.472
0.709 × 0.709
1.181 × 1.181
0.315 × 0.315
0.472 × 0.472
0.945 × 0.945
1.772 × 1.772
× t 0.039 in
× t 0.039 in
× t 0.039 in
× t 0.039 in
× t 0.039 in
× t 0.039 in
× t 0.039 in
× t 0.039 in
10 % or less of operation distance (with standard sensing object) 15 % or less of operation distance (with standard sensing object)
10 to 30 V DC [including 10 % ripple (p-p)], Class 2
16 mA or less
IO-Link Specification Ver1.1
COM3 (230.4 kbps)
PD size: 2 bytes, OD size: 1 byte (M-sequence type: TYPE2_2)
0.4 ms
Environmental resistance
834 (0x342)
GX-308□: 0x70000, GX-312□: 0x70001, GX-318□: 0x70002, GX-330□: 0x70003
PNP open-collector transistor
NPN open-collector transistor
• Maximum source current: 200 mA or less
• Maximum sink current: 200 mA or less
Output
[GX-308M(K)-□: 200 mA or less (-40 to +70 °C -40 to +158 °F), [GX-308M(K)-□: 200 mA or less (-40 to +70 °C -40 to +158 °F),
100 mA or less (+70 to +85 °C +158 to +185 °F)]
100 mA or less (+70 to +85 °C +158 to +185 °F)]
• Applied voltage: 30 V DC or less (between output to +V)
• Applied voltage: 30 V DC or less (between output to 0 V)
esidual voltage: 2 V or less (Note 5) (at source current 200 mA or less)
• Residual voltage: 2 V or less (Note 5) (at sink current 200 mA or less) • R
Short-circuit protection
Incorporated
Response frequency (Note 6)
2,000 Hz
1,500 Hz
600 Hz
400 Hz
1,500 Hz
1,000 Hz
500 Hz
250 Hz
Standard I/O mode (SIO mode): Operation indicator (orange, ON), Communication indicator (green, OFF)
Operation indicator
IO-LINK communication mode (COM mode): Operation indicator (orange, ON), Communication indicator [green, flashing (1-sec intervals)]
Pollution degree
3
Altitude
2,000 m 6561.68 ft or less
Protection
IP67 (IEC), IP69K, IP67G [IP67 (IEC), IP69K for connector type]
-40 to +85°C -40 to +185°F, Storage: -45 to +85°C -49 to +185°F (No condensation or icing allowed)
Ambient temperature
(UL temperature rating for pigtailed type: -25 to +70 °C -13 to +158 °F)
Ambient humidity
35 to 95 % RH, Storage: 35 to 95 % RH (No condensation allowed)
Voltage withstandability
1,000 V AC for one min. between all supply terminals connected together and enclosure
Insulation resistance
50 MΩ or more, with 500 V DC megger between all supply terminals connected together and enclosure
Vibration resistance
10 to 55 Hz frequency, 1.5 mm 0.059 in double amplitude in X, Y and Z directions for two hours each
Shock resistance
1,000 m/s2 (GX-308M(K)-□: 500 m/s2) acceleration in X, Y and Z directions ten times each
Temperature
Within ±15% of sensing range at +23 °C +73°F in ambient temperature range
Sensing
characteristics
Within ±10% of sensing range at +23 °C +73°F in temperature range of -25 to +70 °C -13 to +158 °F
range
Voltage
variation
Within ±1% for ±15 % fluctuation of the rated supply voltage
characteristics
Enclosure: Nickel-plated brass [stainless steel (SUS303) for GX-308M(K)-□],
Material
Sensing part: Polybutylene terephthalate (PBT), Cable: Polyvinyl chloride (PVC)
2
0.2 mm 3-core oil resistant
0.2 mm2 3-core oil resistant
0.2 mm2 3-core oil resistant
0.2 mm2 3-core oil resistant
ø4 mm ø0.157 in cabtyre cable, ø6 mm ø0.236 in cabtyre cable, ø4 mm ø0.157 in cabtyre cable, ø6 mm ø0.236 in cabtyre cable,
Mating cable
2 m 6.562 ft long (Note 7)
2 m 6.562 ft long (Note 8)
2 m 6.562 ft long (Note 7)
2 m 6.562 ft long (Note 8)
Net weight:
Net weight:
Net weight:
Net weight:
Net weight:
Net weight:
Net weight:
Net weight:
Cable type
55 g approx.
70 g approx. 140 g approx. 210 g approx. 55 g approx.
70 g approx. 140 g approx. 210 g approx.
(Note 5)
Gross weight: Gross weight: Gross weight: Gross weight: Gross weight: Gross weight: Gross weight: Gross weight:
80 g approx.
95 g approx. 160 g approx. 240 g approx. 80 g approx.
95 g approx. 160 g approx. 240 g approx.
Net weight:
Net weight:
Net weight:
Net weight:
Net weight:
Net weight:
Net weight:
Net weight:
25 g approx.
40 g approx.
70 g approx. 140 g approx. 25 g approx.
40 g approx.
70 g approx. 140 g approx.
Weight
Pigtailed type
Gross weight: Gross weight: Gross weight: Gross weight: Gross weight: Gross weight: Gross weight: Gross weight:
55 g approx.
70 g approx. 100 g approx. 170 g approx. 55 g approx.
70 g approx. 100 g approx. 170 g approx.
Net weight:
Net weight:
Net weight:
Net weight:
Net weight:
Net weight:
25 g approx.
50 g approx. 130 g approx.
Connector
25 g approx.
50 g approx. 130 g approx.
—
—
Gross weight: Gross weight: Gross weight:
type
Gross weight: Gross weight: Gross weight:
75 g approx. 150 g approx.
55 g approx.
75 g approx. 150 g approx.
55 g approx.
Accessories
Nut: 2 pcs., Toothed lock washer: 1 pc.
Notes: 1) Where measurement conditions have not been specified precisely, the conditions used were an ambient temperature of +23°C +73 °F.
2) The sensors with “N” indicated instead of □ in their model No. are NPN output type. The sensors with “P” are PNP output type.
3) The maximum operation distance stands for the maximum distance for which the sensor can detect the standard sensing object.
The stable sensing range stands for the sensing range for which the sensor can stably detect the standard sensing object even if there is an ambient
temperature drift and/or supply voltage fluctuation.
4) PNP output, normally closed type models and all NPN output models do not support IO-Link.
5) When the cable length is 2 m 6.562 ft.
6) The response frequency is an average value.
7) The bending-resistant cable type comes with a 0.2 mm2 3-core bending-resistant ø4 mm ø0.157 in cabtyre cable.
8) The bending-resistant cable type comes with a 0.2 mm2 3-core bending-resistant ø6 mm ø0.236 in cabtyre cable.
11
GX-300
SPECIFICATIONS
DC 3-wire type (Non-shielded type)
Non-shielded type
Type
Threaded type
Standard sensing range
Model Normally open GX-308ML-A-□
No.
Item (Note 2) Normally closed GX-308ML-B-□
Regulatory compliance
Max. operation distance
(Note 3)
Stable sensing range
(Note 3)
Standard sensing object
Hysteresis
Supply voltage
Current consumption
IO-Link
communication
Baud rate
Output
Process data
(C/Q)
(Note 4)
Minimum cycle time
Vendor ID
Device ID
Output
Long sensing range
GX-312ML-A-□
GX-318ML-A-□
GX-330ML-A-□
GX-308MLK-A-□ GX-312MLK-A-□ GX-318MLK-A-□ GX-330MLK-A-□
GX-312ML-B-□
GX-318ML-B-□
GX-330ML-B-□
GX-308MLK-B-□ GX-312MLK-B-□ GX-318MLK-B-□ GX-330MLK-B-□
CE Marking (EMC Directive, RoHS Directive), UL/c-UL Listing Certification
2 mm
5 mm
10 mm
18 mm
4 mm
8 mm
16 mm
30 mm
0.079 in ±10 % 0.197 in ±10 % 0.394 in ±10 % 0.709 in ±10 % 0.157 in ±10 % 0.315 in ±10 % 0.630 in ±10 % 1.181 in ±10 %
0 to 1.6 mm
0 to 4 mm
0 to 8 mm
0 to 14.4 mm
0 to 3.2 mm
0 to 6.4 mm
0 to 12.8 mm
0 to 24 mm
0 to 0.063 in
0 to 0.157 in
0 to 0.315 in
0 to 0.567 in
0 to 0.126 in
0 to 0.252 in
0 to 0.504 in
0 to 0.945 in
Iron sheet
Iron sheet
Iron sheet
Iron sheet
Iron sheet
Iron sheet
Iron sheet
Iron sheet
8 × 8 × t 1 mm 15 × 15 × t 1 mm 30 × 30 × t 1 mm 54 × 54 × t 1 mm 12 × 12 × t 1 mm 24 × 24 × t 1 mm 48 × 48 × t 1 mm 90 × 90 × t 1 mm
0.315 × 0.315
0.591 × 0.591
1.181 × 1.181
2.126 × 2.126
0.472 × 0.472
0.945 × 0.945
1.89 × 1.89 ×
3.543 × 3.543
× t 0.039 in
× t 0.039 in
× t 0.039 in
× t 0.039 in
× t 0.039 in
× t 0.039 in
t 0.039 in
× t 0.039 in
10% or less of operation distance (with standard sensing object) 15 % or less of operation distance (with standard sensing object)
10 to 30 V DC [including 10 % ripple (p-p)], Class 2
16 mA or less
IO-Link Specification Ver1.1
COM3 (230.4 kbps)
PD size: 2 bytes, OD size: 1 byte (M-sequence type: TYPE2_2)
0.4 ms
834 (0x342)
GX-308□: 0x70000, GX-312□: 0x70001, GX-318□: 0x70002, GX-330□: 0x70003
NPN open-collector transistor
PNP open-collector transistor
• Maximum sink current: 200 mA or less
• Maximum source current: 200 mA or less
[GX-308ML(K)-□: 200 mA or less (-40 to +70 °C -40 to +158 °F),
[GX-308ML(K)-□: 200 mA or less (-40 to +70 °C -40 to +158 °F),
100 mA or less (+70 to +85 °C +158 to +185 °F)]
100 mA or less (+70 to +85 °C +158 to +185 °F)]
• Applied voltage: 30 V DC or less (between output to 0 V)
• Applied voltage: 30 V DC or less (between output to +V)
•R
esidual voltage: 2 V or less (Note 5) (at sink current 200 mA or less) • R
esidual voltage: 2 V or less (Note 5) (at source current 200 mA or less)
Incorporated
1,000 Hz
800 Hz
400 Hz
100 Hz
1,000 Hz
800 Hz
400 Hz
100 Hz
Standard I/O mode (SIO mode): Operation indicator (orange, ON), Communication indicator (green, OFF)
Operation indicator
IO-LINK communication mode (COM mode): Operation indicator (orange, ON), Communication indicator [green, flashing (1-sec intervals)]
Pollution degree
3
Altitude
2,000 m 6561.68 ft or less
Protection
IP67 (IEC), IP69K, IP67G [IP67 (IEC), IP69K for connector type]
-40 to +85 °C -40 to +185 °F, Storage: -45 to +85 °C -49 to +185 °F (No condensation or icing allowed)
Ambient temperature
(UL temperature rating for relay connector type: -25 to +70 °C -13 to +158 °F)
Ambient humidity
35 to 95 % RH, Storage: 35 to 95 % RH (No condensation allowed)
Voltage withstandability
1,000 V AC for one min. between all supply terminals connected together and enclosure
Insulation resistance
50 MΩ or more, with 500 V DC megger between all supply terminals connected together and enclosure
Vibration resistance
10 to 55 Hz frequency, 1.5 mm 0.059 in double amplitude in X, Y and Z directions for two hours each
Shock resistance
1,000 m/s2 (GX-308ML(K)-□: 500 m/s2) acceleration in X, Y and Z directions ten times each
Temperature
Within ±15% of sensing range at +23 °C +73°F in ambient temperature range
Sensing
characteristics
Within ±10% of sensing range at +23 °C +73°F in temperature range of -25 to +70 °C -13 to +158 °F
range
Voltage
variation
Within ±1% for ±15 % fluctuation of the rated supply voltage
characteristics
Enclosure: Nickel-plated brass [stainless steel (SUS303) for GX-308ML(K)-□],
Material
Sensing part: Polybutylene terephthalate (PBT), Cable: Polyvinyl chloride (PVC)
0.2 mm2 3-core oil resistant
0.2 mm2 3-core oil resistant
0.2 mm2 3-core oil resistant
0.2 mm2 3-core oil resistant
ø4 mm ø0.157 in cabtyre cable, ø6 mm ø0.236 in cabtyre cable, ø4 mm ø0.157 in cabtyre cable, ø6 mm ø0.236 in cabtyre cable,
Mating cable
2 m 6.562 ft long (Note 7)
2 m 6.562 ft long (Note 8)
2 m 6.562 ft long (Note 7)
2 m 6.562 ft long (Note 8)
Net weight:
Net weight:
Net weight:
Net weight:
Net weight:
Net weight:
Net weight:
Net weight:
Cable type
55 g approx.
70 g approx. 140 g approx. 200 g approx. 55 g approx.
70 g approx. 140 g approx. 240 g approx.
(Note 5)
Gross weight: Gross weight: Gross weight: Gross weight: Gross weight: Gross weight: Gross weight: Gross weight:
80 g approx.
95 g approx. 170 g approx. 230 g approx. 80 g approx.
95 g approx. 170 g approx. 280 g approx.
Net weight:
Net weight:
Net weight:
Net weight:
Net weight:
Net weight:
Net weight:
Net weight:
25 g approx.
40 g approx.
75 g approx. 140 g approx. 25 g approx.
40 g approx.
75 g approx. 170 g approx.
Weight
Pigtailed type
Gross weight: Gross weight: Gross weight: Gross weight: Gross weight: Gross weight: Gross weight: Gross weight:
55 g approx.
65 g approx. 100 g approx. 160 g approx. 55 g approx.
65 g approx. 100 g approx. 220 g approx.
Net weight:
Net weight:
Net weight:
Net weight:
Net weight:
Net weight:
25 g approx.
55 g approx. 160 g approx.
Connector
25 g approx.
55 g approx. 120 g approx.
—
—
Gross weight: Gross weight: Gross weight:
type
Gross weight: Gross weight: Gross weight:
55 g approx.
80 g approx. 200 g approx.
55 g approx.
80 g approx. 150 g approx.
Accessories
Nut: 2 pcs., Toothed lock washer: 1 pc.
Environmental resistance
Short-circuit protection
Response frequency (Note 6)
Notes: 1) Where measurement conditions have not been specified precisely, the conditions used were an ambient temperature of +23°C +73 °F.
2) The sensors with “N” indicated instead of □ in their model No. are NPN output type. The sensors with “P” are PNP output type.
3) The maximum operation distance stands for the maximum distance for which the sensor can detect the standard sensing object.
The stable sensing range stands for the sensing range for which the sensor can stably detect the standard sensing object even if there is an ambient
temperature drift and/or supply voltage fluctuation.
4) PNP output, normally closed type models and all NPN output models do not support IO-Link.
5) When the cable length is 2 m 6.562 ft.
6) The response frequency is an average value.
7) The bending-resistant cable type comes with a 0.2 mm2 3-core bending-resistant ø4 mm ø0.157 in cabtyre cable.
8) The bending-resistant cable type comes with a 0.2 mm2 3-core bending-resistant ø6 mm ø0.236 in cabtyre cable.
12
GX-300
I/O CIRCUIT AND WIRING DIAGRAMS
GX-3□S-□-N GX-305M-□-N
NPN output type
I/O circuit diagram
Wiring diagram
Color code
Color code
Brown
Sensor circuit
(Brown) +V
Load
(Black) Output
Tr
ZD
D
100 mA max. (Note)
+
−
Black
10 to 30 V DC
Load
+
−
10 to 30 V DC
Blue
(Blue) 0 V
Internal circuit
Users’ circuit
Note: Only GX-303S is 50 mA max.
Symbols... D: Reverse supply polarity protection diode
ZD: Surge absorption zener diode
Tr: NPN output transistor
GX-3□S-□-P GX-305M-□-P
PNP output type
I/O circuit diagram
Wiring diagram
Color code
Sensor circuit
D
Tr
ZD
Color code
Brown
(Brown) +V
100 mA max. (Note)
(Black) Output
Load
+
−
+
Black
10 to 30 V DC
Blue
Load
−
10 to 30 V DC
(Blue) 0 V
Internal circuit
Users’ circuit
Note: Only GX-303S is 50 mA max.
Symbols... D: Reverse supply polarity protection diode
ZD: Surge absorption zener diode
Tr: PNP output transistor
GX-3□M(K)-A-N GX-3□ML(K)-A-N
* Excluding M5 threaded type NPN output, Normally open type
I/O circuit diagram
Wiring diagram
Color code / Connector pin No.
Color code / Connector pin No.
Sensor circuit
(Brown / 1) +V
Brown / 1
Load
(Black / 4) Output
Tr
ZD
D
Internal circuit
200 mA max. (Note)
+
−
Black / 4
10 to 30 V DC
Users’ circuit
Symbols... D: Reverse supply polarity protection diode
ZD: Surge absorption zener diode
Tr: NPN output transistor
+
−
10 to 30 V DC
Blue / 3
(Blue / 3) 0 V
Note: In the case of the M8 threaded type:
200 mA max. (at -40 to +70 °C -40 to +158 °F),
100 mA max. (at +70 to +85 °C +158 to +185 °F)
Load
Connector pin diagram
Pigtailed type
Connector type
2
Not
connected
3
0V
1
+V
4
Output
Mating cable
CN-24S-C□
Color code of mating cable /
Connector pin No.
(Brown / 1) +
(White / 2) Not connected
(Blue / 3) (Black / 4) Output
13
GX-300
I/O CIRCUIT AND WIRING DIAGRAMS
GX-3□M(K)-B-N GX-3□ML(K)-B-N
* Excluding M5 threaded type NPN output, Normally closed type
I/O circuit diagram
Wiring diagram
Color code / Connector pin No.
Color code / Connector pin No.
Sensor circuit
(Brown / 1) +V
Brown / 1
Load
(White / 2) Output
Tr
ZD
D
200 mA max. (Note)
+
−
White / 2
10 to 30 V DC
Connector pin diagram
Note: In the case of the M8 threaded type:
200 mA max. (at -40 to +70 °C -40 to +158 °F),
100 mA max. (at +70 to +85 °C +158 to +185 °F)
Pigtailed type
Connector type
Symbols... D: Reverse supply polarity protection diode
ZD: Surge absorption zener diode
Tr: NPN output transistor
1
+V
2
Output
4
Not
connected
3
0V
Mating cable
CN-24S-C□
GX-3□M(K)-A-P GX-3□ML(K)-A-P
Color code of mating cable /
Connector pin No.
(Brown / 1) +
(White / 2) Output
(Blue / 3) (Black / 4) Not connected
* Excluding M5 threaded type PNP output, Normally open type
I/O circuit diagram
Wiring diagram
Color code / Connector pin No.
Standard I/O mode (SIO mode)
Brown / 1
Color code / Connector pin No.
Sensor circuit
Tr
ZD
200 mA max. (Note)
Load
+
−
Blue / 3
Pigtailed type
Connector type
Users’ circuit
2
Not
connected
Symbols... D: Reverse supply polarity protection diode
ZD: Surge absorption zener diode
Tr: PNP output transistor
3
0V
IO-Link communication mode (COM mode)
Color code / Connector pin No.
Sensor circuit
(Brown / 1) +V
L+ / 1
200 mA max. (Note)
C/Q / 4
(Black / 4) Output
(Blue / 3) 0 V
Internal circuit
Users’ circuit
L− / 3
IO-Link master
Notes: 1) In the case of the M8 threaded type:
200 mA max. (at -40 to +70 °C -40 to +158 °F),
100 mA max. (at +70 to +85 °C +158 to +185 °F)
2) In the IO-Link mode, the cable between the
IO‑Link master and sensor must have a length of
20 m 65.617 ft or less.
Symbols... D: Reverse supply polarity protection diode
ZD: Surge absorption zener diode
Tr: PNP output transistor
14
1
+V
4
Output
Mating cable
CN-24S-C□
ZD
−
Connector pin diagram
Note: In the case of the M8 threaded type:
200 mA max. (at -40 to +70 °C -40 to +158 °F),
100 mA max. (at +70 to +85 °C +158 to +185 °F)
Tr
Load
10 to 30 V DC
(Blue / 3) 0 V
D
+
Black / 4
(Brown / 1) +V
(Black / 4) Output
Internal circuit
10 to 30 V DC
Blue / 3
Users’ circuit
D
+
−
(Blue / 3) 0 V
Internal circuit
Load
Color code of mating cable /
Connector pin No.
(Brown / 1) +
(White / 2) Not connected
(Blue / 3) (Black / 4) Output
10 to 30 V DC
GX-300
I/O CIRCUIT AND WIRING DIAGRAMS
GX-3□M(K)-B-P GX-3□ML(K)-B-P
* Excluding M5 threaded type PNP output, Normally closed type
Wiring diagram
I/O circuit diagram
Color code / Connector pin No.
Sensor circuit
D
Tr
ZD
Color code / Connector pin No.
(Brown / 1) +V
Brown / 1
200 mA max. (Note)
(White / 2) Output
+
−
Load
Blue / 3
(Blue / 3) 0 V
Internal circuit
+
White / 2
10 to 30 V DC
Load
−
10 to 30 V DC
Connector pin diagram
Users’ circuit
Note: In the case of the M8 threaded type:
200 mA max. (at -40 to +70 °C -40 to +158 °F),
100 mA max. (at +70 to +85 °C +158 to +185 °F)
Pigtailed type
Connector type
Symbols... D: Reverse supply polarity protection diode
ZD: Surge absorption zener diode
Tr: PNP output transistor
2
Output
3
0V
1
+V
4
Not
connected
Mating cable
CN-24S-C□
Color code of mating cable /
Connector pin No.
(Brown / 1) +
(White / 2) Output
(Blue / 3) (Black / 4) Not connected
SENSING CHARACTERISTICS (TYPICAL)
All models
Sensing field
Setting distance L (mm in)
1.5
0.059
GX-304S-□
GX-305M-□
1
0.039
0.5
0.020
GX-305S-□
Standard
sensing
object
ℓ
L
GX-303S-□
0
8
0.315
GX-330M-□
GX-318M-□
6
0.236
4
0.157
2
0.079
0
GX-312M-□
GX-308M-□
20 15 10 5 0 5 10 15 20
0.787 0.591 0.394 0.197
0.197 0.394 0.591 0.787
Left
Center
Right
Operating point ℓ (mm in)
18
0.709
16
0.630
14
0.551
12
0.472
10
0.394
8
0.315
6
0.236
4
0.157
2
0.079
0
Standard
sensing
object
ℓ
L
GX-330ML-□
GX-318ML-□
GX-312ML-□
GX-308ML-□
40 30 20 10 0 10 20 30 40
1.575 1.181 0.787 0.394
0.394 0.787 1.181 1.575
Left
Center
Right
Operating point ℓ (mm in)
16
0.630
14
0.551
12
0.472
10
0.394
8
0.315
6
0.236
4
0.157
2
0.079
0
30
1.181
Standard
sensing
object
ℓ
L
GX-330MK-□
GX-318MK-□
GX-312MK-□
GX-308MK-□
20 15 10 5 0 5 10 15 20
0.787 0.591 0.394 0.197
0.197 0.394 0.591 0.787
Left
Center
Right
Operating point ℓ (mm in)
Setting distance L (mm in)
10
0.394
Standard
sensing
object
ℓ
L
Setting distance L (mm in)
Setting distance L (mm in)
12
0.472
Setting distance L (mm in)
6
4
2
0
2
4
6
0.236 0.157 0.079
0.079 0.157 0.236
Left
Center
Right
Operating point ℓ (mm in)
25
0.984
20
0.787
15
0.591
10
0.394
5
0.197
Standard
sensing
object
ℓ
L
GX-330MLK-□
GX-318MLK-□
GX-312MLK-□
GX-308MLK-□
0
40 30 20 10 0 10 20 30 40
1.575 1.181 0.787 0.394
0.394 0.787 1.181 1.575
Left
Center
Right
Operating point ℓ (mm in)
15
GX-300
SENSING CHARACTERISTICS (TYPICAL)
GX-303S-□
0.9
0.035
0.8
0.031
0.7
0.028
0.6
0.024
0.5
0.020
0.4
0.016
0.3
0.012
0.2
0.008
0.1
0.004
Iron
L
0
Stainless steel (SUS304)
Brass
Aluminum
Copper
Sensing object
(size: a × a (mm) a × a (in))
t: 1 mm t 0.039 in
As the sensing object size
becomes smaller than the
standard size (iron sheet 3 ×
3 × t 1 mm 0.118 × 0.118 ×
t 0.039 in), the sensing range
shortens as shown in the left
figure.
Correlation between sensing range and repeatability
0.8
0.031
0.7
0.028
0.6
0.024
0.5
0.020
0.4
0.016
0.3
0.012
0.2
0.008
0.1
0.004
Sensing range L (mm in)
Sensing range L (mm in)
Correlation between sensing object size and sensing range
5 10 15 20 25 30 35
0.197 0.394 0.591 0.787 0.984 1.181 1.378
Sensing object side
length a (mm in)
12 V DC
24 V DC
Standard sensing object
Iron sheet 3 × 3 × t 1 mm
0.118 × 0.118 × t 0.039 in ON point
L Repeatability
0
0.05
0.002
0.1
0.004
0.15
0.006
0.2
0.008
Repeatability (mm in)
GX-304S-□ GX-305M-□
1.6
0.063
1.4
0.055
1.2
0.047
1.0
0.039
0.8
0.031
0.6
0.024
0.4
0.016
0.2
0.008
L
Iron
Sensing object (size: a × a (mm) a × a (in))
t: 1 mm t 0.039 in
Stainless steel (SUS304)
As the sensing object size
becomes smaller than the
standard size (iron sheet 4 ×
4 × t 1 mm 0.157 × 0.157 in ×
t 0.039 in), the sensing range
shortens as shown in the left
figure.
Brass
Aluminum
Copper
0
Correlation between sensing range and repeatability
1.2
0.047
Sensing range L (mm in)
Sensing range L (mm in)
Correlation between sensing object size and sensing range
12 V DC
24 V DC
1
0.039
0.8
0.031
0.6
0.024
Standard sensing object
Iron sheet 4 × 4 × t 1 mm
0.157 × 0.157 × t 0.039 in ON point
L Repeatability
0.4
0.016
0.2
0.008
5 10 15 20 25 30 35
0.197 0.394 0.591 0.787 0.984 1.181 1.378
Sensing object side
length a (mm in)
0
0.05
0.002
0.1
0.004
0.15
0.006
0.2
0.008
Repeatability (mm in)
GX-305S-□
1.6
0.063
1.4
0.055
1.2
0.047
1.0
0.039
0.8
0.031
0.6
0.024
0.4
0.016
0.2
0.008
L
Iron
Stainless steel (SUS304)
Brass
Aluminum
Copper
0
16
Sensing object
(size: a × a (mm) a × a (in))
t: 1 mm t 0.039 in
5 10 15 20 25 30 35
0.197 0.394 0.591 0.787 0.984 1.181 1.378
Sensing object side
length a (mm in)
As the sensing object size
becomes smaller than the
standard size (iron sheet 5.4 ×
5.4 × t 1 mm 0.213 × 0.213 ×
t 0.039 in), the sensing range
shortens as shown in the left
figure.
Correlation between sensing range and repeatability
1.2
0.047
Sensing range L (mm in)
Sensing range L (mm in)
Correlation between sensing object size and sensing range
12 V DC
1
0.039
24 V DC
0.8
0.031
0.6
0.024
Standard sensing object
Iron sheet 5.4 × 5.4 × t 1 mm
0.213 × 0.213 × t 0.039 in ON point
L Repeatability
0.4
0.016
0.2
0.008
0
0.05
0.002
0.1
0.004
0.15
0.006
Repeatability (mm in)
0.2
0.008
GX-300
SENSING CHARACTERISTICS (TYPICAL)
GX-308M-□
Sensing range L (mm in)
2.5
0.098
2.0
0.079
L
Sensing object
(size: a × a (mm) a × a (in))
t: 1 mm t 0.039 in
Iron
1.5
0.059
Stainless steel
(SUS304)
1.0
0.039
Brass
0.5
0.020
As the sensing object size
becomes smaller than the
standard size (iron sheet 8 ×
8 × t 1 mm 0.315 × 0.315 ×
t 0.039 in), the sensing range
shortens as shown in the left
figure.
Correlation between monitor output and sensing range
250
225
175
Sensing object 8 × 8 mm 0.315 × 0.315 in
t 1 mm t 0.039 in
Iron
150
Stainless steel
(SUS304)
Aluminum
125
100
75
50
Aluminum
Copper
0
L
200
Detection level
Correlation between sensing object size and sensing range
25
0
5
10
15
20
25
0.197 0.394 0.591 0.787 0.984
Sensing object side
length a (mm in)
0
2.5 3
0.5
1
1.5
2
0.020 0.039 0.059 0.079 0.098 0.118
Sensing range L (mm in)
GX-312M-□
3.0
0.118
2.5
0.098
L
Sensing object
(size: a × a (mm) a × a (in))
t: 1 mm t 0.039 in
Iron
2.0
0.079
1.5
0.059
Stainless steel
(SUS304)
Brass
1.0
0.039
0.5
0.020
0.0
Aluminum
Copper
0
As the sensing object size
becomes smaller than the
standard size (iron sheet 12 ×
12 × t 1 mm 0.472 × 0.472 ×
t 0.039 in), the sensing range
shortens as shown in the left
figure.
Correlation between monitor output and sensing range
250
225
Detection level
Sensing range L (mm in)
Correlation between sensing object size and sensing range
200
L
175
Iron
Sensing object 12 × 12 mm 0.472 × 0.472 in
t 1 mm t 0.039 in
150
Stainless steel
(SUS304)
125
100
Aluminum
75
50
25
0
5
10
15
20
25
0.197 0.394 0.591 0.787 0.984
Sensing object side
length a (mm in)
0 0.5 1 1.5 2 2.5 3 3.5 4
0.020 0.039 0.059 0.079 0.098 0.118 0.138 0.157
Sensing range L (mm in)
GX-318M-□
6
Sensing object (size: a × a (mm) a × a (in))
0.236
t: 1 mm t 0.039 in
Iron
L
5
0.197
Stainless steel
4
(SUS304)
0.157
3
0.118
Brass
2
0.079
1
0.039
0
Aluminum
Copper
0
As the sensing object size
becomes smaller than the
standard size (iron sheet 18 ×
18 × t 1 mm 0.709 × 0.709 ×
t 0.039 in), the sensing range
shortens as shown in the left
figure.
Correlation between monitor output and sensing range
250
225
Sensing object 18 × 18 mm 0.709 × 0.709 in
t 1 mm t 0.039 in
L
200
Detection level
Sensing range L (mm in)
Correlation between sensing object size and sensing range
175
150
Iron
125
100
Stainless steel
(SUS304)
Aluminum
75
50
25
0
10
20
30
40
50
0.394 0.787 1.181 1.575 1.969
Sensing object side
length a (mm in)
0
1 2 3 4 5 6 7 8 9 10
0.039 0.079 0.118 0.157 0.197 0.236 0.276 0.315 0.354 0.394
Sensing range L (mm in)
GX-330M-□
12
0.472
10
0.394
L
Stainless steel
(SUS304)
8
0.315
6
0.236
Aluminum
4
0.157
2
0.079
0
Sensing object (size: a × a (mm) a × a (in))
t: 1 mm t 0.039 in
Iron
Brass
Copper
0
10
20
30 40
50 60
0.394 0.787 1.181 1.575 1.969 2.362
Sensing object side
length a (mm in)
As the sensing object size
becomes smaller than the
standard size (iron sheet 30 ×
30 × t 1 mm 1.181 × 1.181 ×
t 0.039 in), the sensing range
shortens as shown in the left
figure.
Correlation between monitor output and sensing range
250
225
L
200
Detection level
Sensing range L (mm in)
Correlation between sensing object size and sensing range
Sensing object 30 × 30 mm 1.181 × 1.181 in
t 1 mm t 0.039 in
Iron
175
150
Stainless steel
(SUS304)
125
100
Aluminum
75
50
25
0
0
2 4 6 8 10 12 14 16 18 20
0.079 0.157 0.236 0.315 0.394 0.472 0.551 0.630 0.709 0.787
Sensing range L (mm in)
17
GX-300
SENSING CHARACTERISTICS (TYPICAL)
GX-308MK-□
3.0
Sensing object
0.118
(size: a × a (mm) a × a (in))
2.5
t: 1 mm t 0.039 in
0.098 L
Iron
2.0
0.079
Stainless steel
1.5
(SUS304)
0.059
1.0
0.039
0.5
0.020
0.0
Aluminum
Brass
As the sensing object size
becomes smaller than the
standard size (iron sheet 8 ×
8 × t 1 mm 0.315 × 0.315 ×
t 0.039 in), the sensing range
shortens as shown in the left
figure.
Correlation between monitor output and sensing range
250
225
175
Sensing object 8 × 8 mm 0.315 × 0.315 in
t 1 mm t 0.039 in
Iron
Stainless steel
(SUS304)
150
125
100
Aluminum
75
50
25
0
Copper
0
L
200
Detection level
Sensing range L (mm in)
Correlation between sensing object size and sensing range
5
10
15
20
25
0.197 0.394 0.591 0.787 0.984
Sensing object side
length a (mm in)
0 0.5 1 1.5 2 2.5 3 3.5 4
0.020 0.039 0.059 0.079 0.098 0.118 0.138 0.157
Sensing range L (mm in)
GX-312MK-□
Sensing range L (mm in)
5
0.197
4 L
0.157
Sensing object
(size: a × a (mm) a × a (in))
Iron
t: 1 mm t 0.039 in
Stainless steel
(SUS304)
3
0.118
Aluminum
2
0.079
Copper
1
0.039
0
Brass
0
As the sensing object size
becomes smaller than the
standard size (iron sheet 12 ×
12 × t 1 mm 0.472 × 0.472 ×
t 0.039 in), the sensing range
shortens as shown in the left
figure.
Correlation between monitor output and sensing range
250
225
L
200
Detection level
Correlation between sensing object size and sensing range
175
Sensing object 12 × 12 mm 0.472 × 0.472 in
t 1 mm t 0.039 in
Iron
Stainless steel
(SUS304)
150
125
Aluminum
100
75
50
25
0
5
10 15 20 25 30
0.197 0.394 0.591 0.787 0.984 1.181
Sensing object side
length a (mm in)
0
1 2 3 4 5 6 7 8
0.039 0.079 0.118 0.157 0.197 0.236 0.276 0.315
Sensing range L (mm in)
GX-318MK-□
Sensing range L (mm in)
10
0.394
L
8
0.315
Sensing object (size: a × a (mm) a × a (in))
t: 1 mm t 0.039 in
Iron
Stainless steel
(SUS304)
6
0.236
Aluminum
4
0.157
250
225
0
L
200
Copper
2
0.079
0
Brass
As the sensing object size
becomes smaller than the
standard size (iron sheet 24 ×
24 × t 1 mm 0.945 × 0.945 ×
t 0.039 in), the sensing range
shortens as shown in the left
figure.
Correlation between monitor output and sensing range
Detection level
Correlation between sensing object size and sensing range
175
Sensing object 24 × 24 mm 0.945 × 0.945 in
t 1 mm t 0.039 in
Iron
150
Stainless steel
(SUS304)
125
100
Aluminum
75
50
25
0
10
20
30
40
50
0.394 0.787 1.181 1.575 1.969
Sensing object side
length a (mm in)
0
2 4 6 8 10 12 14 16
0.079 0.157 0.236 0.315 0.394 0.472 0.551 0.630
Sensing range L (mm in)
GX-330MK-□
Sensing range L (mm in)
20
0.787
16 L
0.630
18
Stainless steel
(SUS304)
12
0.472
Aluminum
8
0.315
4
0.157
0
Sensing object
(size: a × a (mm) a × a (in))
t: 1 mm t 0.039 in
Iron
Brass
Copper
0
10 20 30 40 50 60 70
0.394 0.787 1.181 1.575 1.969 2.362 2.756
Sensing object side
length a (mm in)
As the sensing object size
becomes smaller than the
standard size (iron sheet 45 ×
45 × t 1 mm 1.772 × 1.772 ×
t 0.039 in), the sensing range
shortens as shown in the left
figure.
Correlation between monitor output and sensing range
250
225
L
200
Detection level
Correlation between sensing object size and sensing range
Sensing object 45 × 45 mm 1.772 × 1.772 in
t 1 mm t 0.039 in
Iron
175
150
Stainless steel
(SUS304)
Aluminum
125
100
75
50
25
0
0
3 6 9 12 15 18 21 24 27 30
0.118 0.236 0.354 0.472 0.591 0.709 0.827 0.945 1.063 1.181
Sensing range L (mm in)
GX-300
SENSING CHARACTERISTICS (TYPICAL)
GX-308ML-□
3.0
Sensing object
0.118
(size: a × a (mm) a × a (in))
2.5
t: 1 mm t 0.039 in
0.098 L
Iron
2.0
0.079
Stainless steel
(SUS304)
1.5
0.059
Aluminum
1.0
0.039
0.5
0.020
0.0
Brass
As the sensing object size
becomes smaller than the
standard size (iron sheet 8 ×
8 × t 1 mm 0.315 × 0.315 ×
t 0.039 in), the sensing range
shortens as shown in the left
figure.
Correlation between monitor output and sensing range
250
225
Detection level
Sensing range L (mm in)
Correlation between sensing object size and sensing range
L
175
Iron
150
Sensing object 8 × 8 mm 0.315 × 0.315 in
t 1 mm t 0.039 in
Stainless steel
(SUS304)
125
100
Aluminum
75
50
Copper
0
200
25
0
5
10
15
20
25
0.197 0.394 0.591 0.787 0.984
Sensing object side
length a (mm in)
0 0.5 1 1.5 2 2.5 3 3.5 4
0.020 0.039 0.059 0.079 0.098 0.118 0.138 0.157
Sensing range L (mm in)
GX-312ML-□
6
Sensing object (size: a × a (mm) a × a (in))
0.236
t: 1 mm t 0.039 in
L
Iron
5
0.197
Stainless steel
4
(SUS304)
0.157
3
0.118
Aluminum
2
0.079
250
225
0
L
200
175
Sensing object 15 × 15 mm 0.591 × 0.591 in
t 1 mm t 0.039 in
Iron
150
Stainless steel
(SUS304)
125
100
Aluminum
75
50
Copper
1
0.039
0
Brass
As the sensing object size
becomes smaller than the
standard size (iron sheet 15 ×
15 × t 1 mm 0.591 × 0.591 ×
t 0.039 in), the sensing range
shortens as shown in the left
figure.
Correlation between monitor output and sensing range
Detection level
Sensing range L (mm in)
Correlation between sensing object size and sensing range
25
0
10
20
30
40
50
0.394 0.787 1.181 1.575 1.969
Sensing object side
length a (mm in)
0
1 2 3 4 5 6 7 8 9 10
0.039 0.079 0.118 0.157 0.197 0.236 0.276 0.315 0.354 0.394
Sensing range L (mm in)
GX-318ML-□
12
Sensing object (size: a × a (mm) a × a (in))
0.472
t: 1 mm t 0.039 in
L
10
Iron
0.394
8
0.315
Stainless steel
(SUS304)
6
0.236
Aluminum
4
0.157
2
0.079
0
Brass
As the sensing object size
becomes smaller than the
standard size (iron sheet 30 ×
30 × t 1 mm 1.181 × 1.181 ×
t 0.039 in), the sensing range
shortens as shown in the left
figure.
Correlation between monitor output and sensing range
250
225
Detection level
Sensing range L (mm in)
Correlation between sensing object size and sensing range
Copper
0
200
L
175
Iron
150
Sensing object 30 × 30 mm 1.181 × 1.181 in
t 1 mm t 0.039 in
Stainless steel
(SUS304)
125
100
Aluminum
75
50
25
0
10
20
30 40
50 60
0.394 0.787 1.181 1.575 1.969 2.362
Sensing object side
length a (mm in)
0
2 4 6 8 10 12 14 16 18 20
0.079 0.157 0.236 0.315 0.394 0.472 0.551 0.630 0.709 0.787
Sensing range L (mm in)
GX-330ML-□
Sensing range L (mm in)
25
0.984
Sensing object
(size: a × a (mm) a × a (in))
t: 1 mm t 0.039 in
20 L
Iron
0.787
15
0.591
10
0.394
5
0.197
0
Stainless steel
(SUS304)
Aluminum
Brass
Copper
0 10 20 30 40 50 60 70 80 90
0.394 0.787 1.181 1.575 1.969 2.362 2.756 3.150 3.543
Sensing object side
length a (mm in)
As the sensing object size
becomes smaller than the
standard size (iron sheet 54 ×
54 × t 1 mm 2.126 × 2.126 ×
t 0.039 in), the sensing range
shortens as shown in the left
figure.
Correlation between monitor output and sensing range
250
225
Detection level
Correlation between sensing object size and sensing range
200
L
175
Iron
150
Sensing object 54 × 54 mm 2.126 × 2.126 in
t 1 mm t 0.039 in
125
Stainless steel
(SUS304)
100
Aluminum
75
50
25
0
0 3 6 9 12 15 18 21 24 27 30 33 36
0.118 0.236 0.354 0.472 0.591 0.709 0.827 0.945 1.063 1.181 1.299 1.417
Sensing range L (mm in)
19
GX-300
SENSING CHARACTERISTICS (TYPICAL)
GX-308MLK-□
Sensing range L (mm in)
5
0.197
L
4
0.157
Sensing object (size: a × a (mm) a × a (in))
t: 1 mm t 0.039 in
Iron
Stainless steel
(SUS304)
3
0.118
2
0.079
Aluminum
1
0.039
0
Brass
As the sensing object size
becomes smaller than the
standard size (iron sheet 12 ×
12 × t 1 mm 0.472 × 0.472 ×
t 0.039 in), the sensing range
shortens as shown in the left
figure.
Correlation between monitor output and sensing range
250
225
Detection level
Correlation between sensing object size and sensing range
L
175
Iron
150
Sensing object 12 × 12 mm 0.472 × 0.472 in
t 1 mm t 0.039 in
Stainless steel
(SUS304)
125
100
Aluminum
75
50
Copper
0
200
25
0
5
10 15 20 25 30
0.197 0.394 0.591 0.787 0.984 1.181
Sensing object side
length a (mm in)
0
1 2 3 4 5 6 7 8
0.039 0.079 0.118 0.157 0.197 0.236 0.276 0.315
Sensing range L (mm in)
GX-312MLK-□
Sensing range L (mm in)
10
0.394
Sensing object (size: a × a (mm) a × a (in))
t: 1 mm t 0.039 in
8 L
Iron
0.315
Stainless steel
6
(SUS304)
0.236
Aluminum
4
Brass
0.157
250
225
0
200
L
175
Iron
150
Sensing object 24 × 24 mm 0.945 × 0.945 in
t 1 mm t 0.039 in
125
Stainless steel
(SUS304)
100
Aluminum
75
50
Copper
2
0.079
0
As the sensing object size
becomes smaller than the
standard size (iron sheet 24 ×
24 × t 1 mm 0.945 × 0.945 ×
t 0.039 in), the sensing range
shortens as shown in the left
figure.
Correlation between monitor output and sensing range
Detection level
Correlation between sensing object size and sensing range
25
0
10
20
30
40
50
0.394 0.787 1.181 1.575 1.969
Sensing object side
length a (mm in)
0
2 4 6 8 10 12 14 16
0.079 0.157 0.236 0.315 0.394 0.472 0.551 0.630
Sensing range L (mm in)
GX-318MLK-□
Sensing range L (mm in)
20
0.787
Sensing object (size: a × a (mm) a × a (in))
t: 1 mm t 0.039 in
16 L
Iron
0.630
Stainless steel
12
(SUS304)
0.472
Aluminum
8
Brass
0.315
250
225
0
L
200
Copper
4
0.157
0
As the sensing object size
becomes smaller than the
standard size (iron sheet 48 ×
48 × t 1 mm 1.890 × 1.890 ×
t 0.039 in), the sensing range
shortens as shown in the left
figure.
Correlation between monitor output and sensing range
Detection level
Correlation between sensing object size and sensing range
175
Sensing object 48 × 48 mm 1.890 × 1.890 in
t 1 mm t 0.039 in
Iron
Stainless steel
(SUS304)
150
125
100
Aluminum
75
50
25
0
10 20 30 40 50 60 70
0.394 0.787 1.181 1.575 1.969 2.362 2.756
Sensing object side
length a (mm in)
0
4 8 12 16 20 24 28 32
0.157 0.315 0.472 0.630 0.787 0.945 1.102 1.260
Sensing range L (mm in)
GX-330MLK-□
20
35
Sensing object (size: a × a (mm) a × a (in))
1.378
t: 1 mm t 0.039 in
30 L
Iron
1.181
Stainless steel
25
(SUS304)
0.984
20
0.787
Aluminum
15
Brass
0.591
10
0.394
Copper
5
0.197
0
0 10 20 30 40 50 60 70 80 90
0.394 0.787 1.181 1.575 1.969 2.362 2.756 3.150 3.543
Sensing object side
length a (mm in)
As the sensing object size
becomes smaller than the
standard size (iron sheet 90 ×
90 × t 1 mm 3.543 × 3.543 ×
t 0.039 in), the sensing range
shortens as shown in the left
figure.
Correlation between monitor output and sensing range
250
225
L
200
Detection level
Sensing range L (mm in)
Correlation between sensing object size and sensing range
Sensing object 90 × 90 mm 3.543 × 3.543 in
t 1 mm t 0.039 in
Iron
175
150
125
Stainless steel
(SUS304)
100
Aluminum
75
50
25
0
0
10 20 30 40 50 60
0.394 0.787 1.181 1.575 1.969 2.362
Sensing range L (mm in)
GX-300
PRECAUTIONS FOR PROPER USE
• This catalog is a guide to select a suitable product. Be
sure to read instruction manual attached to the product
prior to its use.
• Never use this product as a sensing device
for personnel protection.
• In case of using sensing devices for
personnel protection, use products which
meet laws and standards, such as OSHA,
ANSI or IEC etc., for personnel protection
applicable in each region or country.
Mounting hole and nut dimensions
Model No.
D (mm in)
E (mm in)
GX-303S
ø3.3+0.5
0
ø0.130+0.0197
0
-
GX-304S
ø4.2+0.5
0
ø0.165+0.0197
0
-
D
GX-305S
+0.5
0
+0.0197
0
ø5.7
ø0.224
-
Nut dimensions
GX-305M
ø5.5+0.5
0
ø0.217+0.0197
0
-
GX-308M(K)
GX-308ML(K)
ø8.5+0.5
0
ø0.335+0.0197
0
13 0.512
GX-312M(K)
GX-312ML(K)
+0.5
0
+0.0197
0
ø12.5
ø0.492
17 0.669
GX-318M(K)
GX-318ML(K)
ø18.5+0.5
0
ø0.728+0.0197
0
24 0.945
GX-330M(K)
GX-330ML(K)
ø30.5+0.5
0
ø1.201+0.0197
0
36 1.417
Mounting hole
Mounting
• The tightening torque should be under the value given
below.
Installation using set screw
• Do not tighten the product mounting nuts with excessive
force.
Tr
A
E
Bending radius of lead-out cable section
Set screw (M3), cup point
(Set screw is not provided with the product.
It must be arranged by the customer.)
Model No.
GX-303S
GX-304S
GX-305S
GX-305M
10 mm 0.394 in
or more
R
Model No.
Set screw location
A (mm in)
Tightening torque
GX-303S
GX-304S
GX-305S
13 to 21 0.512 to 0.827
0.2 N∙m
8 to 21 0.315 to 0.827
0.4 N∙m
Installation using nut
• Do not tighten the nut with excessive force. Be sure to
install the toothed locked washer.
• In the case of the M8 threaded type, the allowable
strength differs depending on the distance from the tip
of the head. The following table shows the allowable
tightening strengths for section B and section C shown in
the diagram. (Section B starts from the tip of the head and
its dimension is indicated in the table. Section C includes
the nut on the head side. Therefore, if the nut extends
into section B even slightly, the strength of section B is
applicable.)
• The following allowable tightening strengths are
applicable when the washer is installed.
Shielded type,
threaded type
Attached toothed
lock washer
C
Model No.
(Shielded type)
GX-305M
GX-308M(K)
GX-312M(K)
GX-318M(K)
GX-330M(K)
Model No.
(Non-shielded type)
GX-308ML(K)
GX-312ML(K)
GX-318ML(K)
GX-330ML(K)
Non-shielded type,
threaded type
Attached toothed
lock washer
B
C
B
Dimension
(mm in)
Tightening
torque
-
1 N∙m
9 0.354
9 N∙m
-
• Please use the sensor after confirming the installation
distance by following (a) and (b) with an actual detection
object when you install.
(a)The detection distance receives the influence by the
material of the detection object, thickness, shape, and
the size. So, the detection object is brought close to
the front side of the sensor and detection distance (S)
is measured. For the effect of the material, see the
graph, “Correlation between sensing object size and
sensing range,” (p.16).
(b)Please decide installation distance (Sa) with S × 70%
or less after measuring sensing distance(S).
• Please install the sensor to come within the range of (Sa)
when the detection object moves from vertical direction.
• Please install the sensor to pass within the range of
(Sa) when the detection object moves from horizontal
direction.
• When using the sensor, refer to the “Standard sensing
object” specified in the specifications (p.10) and the
graph, “Correlation between sensing object size and
sensing range,” (p.16).
S
(a)
(b)
Sa
Sa = S × 0.7
12 N∙m
30 N∙m
-
70 N∙m
-
180 N∙m
Dimension
(mm in)
B
Tightening
torque
C
Tightening
torque
3 0.118
9 N∙m
12 N∙m
-
9 mm 0.354 in or more
Installing small-diameter sensor
B
C
Tightening
torque
Bending radius R
7 mm 0.276 in or more
30 N∙m
-
70 N∙m
-
180 N∙m
21
GX-300
PRECAUTIONS FOR PROPER USE
Distance from surrounding metal
Mutual interference
• As metal around the sensor may affect the sensing
performance, pay attention to the following points.
• When two or more sensors are installed in parallel or face
to face, keep the minimum separation distance specified
below to avoid mutual interference
Influence of surrounding metal
• The surrounding metal will affect the sensing
performance. Keep the minimum distance specified in the
table below.
• When mounting the sensor using a nut, use the nut and
washer provided with the product.
• The type of the provided nut varies in different models.
See the external dimensions diagrams (p.23~) for the
detail of the shape.
Mounting method A (Using the provided nut)
F
F
H
G
H
I
F
Mounting method B (Embedded in the metal)
J
J
K
H
G
H
I
(Unit: mm in)
Model No.
(Shielded
type)
F
G
H
I
J
GX-303S
-
-
-
-
0
GX-304S
-
-
-
-
0
GX-305S
-
-
-
-
0
GX-305M
0
GX-308M
0
GX-312M
0
GX-318M
0
ø5
ø0.197
ø8
ø0.315
ø12
ø0.472
ø18
ø0.709
ø30
ø1.181
ø8
ø0.315
ø18
ø0.709
ø27
ø1.063
ø45
ø1.772
5
0.197
4.5
0.177
8
0.315
20
0.787
40
1.575
4.5
0.177
12
0.472
24
0.945
45
1.772
10
0.394
12
0.472
18
0.709
27
1.063
45
1.772
12
0.472
18
0.709
27
1.063
45
1.772
GX-330M
0
GX-308MK
0
GX-312MK
0
GX-318MK
0
GX-330MK
0
Model No.
(Non-shielded
type)
GX-308ML
GX-312ML
GX-318ML
GX-330ML
GX-308MLK
GX-312MLK
GX-318MLK
GX-330MLK
22
Mounting method A
Mounting method B
G
0
0
0
0
0
0
2.4
0.094
3.6
0.142
6
0.236
Mounting method A
ø3
ø0.118
ø4
ø0.157
ø5.4
ø0.213
ø5
ø0.197
ø8
ø0.315
ø12
ø0.472
ø18
ø0.709
ø30
ø1.181
ø8
ø0.315
ø18
ø0.709
ø27
ø1.063
ø45
ø1.772
K
0
0
0
0
0
0
0
0
0
2.4
0.094
3.6
0.142
6
0.236
H
I
3
0.118
5
0.197
3
0.118
5
0.197
4.5
0.177
8
0.315
20
0.787
40
1.575
4.5
0.177
12
0.472
24
0.945
45
1.772
8
0.315
10
0.394
8
0.315
10
0.394
12
0.472
18
0.709
27
1.063
45
1.772
12
0.472
18
0.709
27
1.063
45
1.772
Mounting method B
F
G
H
I
J
G
K
H
I
6
0.236
11
0.433
18
0.709
25
0.984
9
0.354
11
0.433
21
0.827
40
1.575
ø24
ø0.945
ø40
ø1.575
ø55
ø2.165
ø90
ø3.543
ø24
ø0.945
ø40
ø1.575
ø70
ø2.756
ø120
ø4.724
8
0.315
20
0.787
40
1.575
70
2.756
8
0.315
20
0.787
48
1.890
90
3.543
24
0.945
36
1.417
54
2.126
90
3.543
24
0.945
40
1.575
70
2.756
120
4.724
6
0.236
15
0.591
22
0.866
30
1.181
12
0.472
15
0.591
25
0.984
45
1.772
ø24
ø0.945
ø40
ø1.575
ø55
ø2.165
ø90
ø3.543
ø24
ø0.945
ø40
ø1.575
ø70
ø2.756
ø120
ø4.724
6
0.236
15
0.591
22
0.866
30
1.181
12
0.472
15
0.591
25
0.984
45
1.772
8
0.315
20
0.787
40
1.575
70
2.756
8
0.315
20
0.787
48
1.890
90
3.543
24
0.945
36
1.417
54
2.126
90
3.543
24
0.945
40
1.575
70
2.756
120
4.724
L
L
M
Model No.
(Shielded type)
GX-303S
GX-304S
GX-305S
GX-305M
GX-308M(K)
GX-312M(K)
GX-318M
GX-318MK
GX-330M
GX-330MK
Model No.
(Non-shielded type)
GX-308ML(K)
GX-312ML(K)
GX-318ML
GX-318MLK
GX-330ML
GX-330MLK
L (mm in)
M (mm in)
20 0.787
15 0.591
20 0.787
15 0.591
20 0.787
15 0.591
20 0.787
15 0.591
20 0.787
15 0.591
30 1.181
20 0.787
50 1.969
35 1.378
60 2.362
35 1.378
100 3.937
70 2.756
110 4.331
90 3.543
L (mm in)
M (mm in)
80 3.150
60 2.362
120 4.724
100 3.937
200 7.874
110 4.331
200 7.874
120 4.724
300 11.811
200 7.874
350 13.780
300 11.811
Timing chart
Non-sensing area
Operation Sensing
object
Mode
(%)
N.O.
Standard
I/O mode
(SIO)
(Note 1)
N.C.
N.O.
IO-Link
communication
mode (COM)
(Note 2)
N.C.
100
Sensing area
Proximity
Sensor
0
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Flashing
(1 sec cycle)
ON
OFF
ON
OFF
Flashing
(1 sec cycle)
ON
OFF
ON
OFF
Communication
indicator (Green)
Operation
indicator (Orange)
OUT
Communication
indicator (Green)
Operation
indicator (Orange)
OUT
Communication
indicator (Green)
Operation
indicator (Orange)
OUT
Communication
indicator (Green)
Operation
indicator (Orange)
OUT
Notes: 1) When sensors that are not compatible with IO-Link are used or
when IO-Link compatible models are used as ordinary sensors,
they operate in the standard I/O mode (SIO mode).
2) The operation mode can be changed by the IO-Link
communications. The timer function of the output can be set up by
the IO-Link communications.
GX-300
PRECAUTIONS FOR PROPER USE
Others
• This product has been developed / produced for industrial
use only.
• Do not install the product in the following locations. Doing
so may result in product failure or malfunction.
∙ Outdoor locations directly subject to sunlight, rain, snow,
water droplets, or oil.
∙ Locations subject to atmospheres with chemical vapors,
in particular solvents and acids.
∙ Locations subject to corrosive gases.
• The product may malfunction if used near ultrasonic
cleaning equipment, high-frequency equipment,
transceivers, cellular phones, inverters, or other devices
that generate a high-frequency electric field.
• Laying the product wiring in the same conduit or duct as
high-voltage wires or power lines may result in incorrect
operation and damage due to induction. Wire the product
using a separate conduit or independent conduit.
• The following conditions shall be observed if you use the
product under an environment using cutting oil that may
affect product’s life and/or performance.
∙ Usage in oil or water is prohibited.
• Impact on the product life may differ depending on the
oil you use. Before using the cutting oil, make sure that it
should not cause deterioration or degradation of sealing
components.
• Never use thinner or other solvents. Otherwise, the
product surface may be dissolved.
• When turning ON the power by influence of temperature
environment, an output mis-pulse sometimes occurs.
After the product has passed for 300 ms after turning
ON, please use in the stable state. If the sensing object
is located near the sensor’s sensing surface, an output
mis-pulse may be generated for 300 ms or longer at the
time of power-on. Be sure to check the product for proper
operation under actual operating condition before using.
• The product is adjusted with a high degree of accuracy,
so do not use in the environment with sudden
temperature change.
• Do not attempt to disassemble, repair, or modify the
product.
• Do not use a voltage that exceeds the rated operating
voltage range. Applying a voltage that is higher than the
operating voltage range may result in damage or burnout.
• Be sure that the power supply polarity and other wiring is
correct. Incorrect wiring may cause explosion or burnout.
• If the power supply is connected directly without a load,
the internal elements may explode or burn. Be sure to
insert a load when connecting the power supply.
• Please use gloves to protect yourself from injury caused
by screw.
• For the connector type and pigtailed type, check the
specifications of the connector cable to be used. Please
do not use it under conditions that exceed the range of
its specifications of both the product and the connector
cable.
• Please make sure there is no foreign matter in connector
part before connecting the connector cable to the
connector type and pigtailed type.
• In the IO-Link mode, the cable between the IO-Link
master and sensor must have a length of 20 m 65.617 ft
or less.
DIMENSIONS(Unit: mm in)
Sensor
27.1 1.067
18 0.709
Operation indicator (orange),
4 locations on circumference
GX-304S-□
Sensor
25.1 0.988
0
ø4 -0.1
0
ø0.157 -0.004
0
ø3 -0.1
0
ø0.118 -0.004
GX-303S-□
The CAD data can be downloaded from our website.
Operation indicator (orange),
4 locations on circumference
18.5 0.728
ø2.4 mm ø0.094 in cable,
2 m 6.562 ft long
(Products with “-C5” at
the end of model No.:
5 m 16.404 ft)
GX-305S-□
Sensor
ø2.9 mm ø0.114 in cable,
2 m 6.562 ft long
(Products with “-C5” or “-R5”
at the end of model No.:
5 m 16.404 ft)
GX-305M-□
Sensor
0
ø5.4 -0.1
0
ø0.213 -0.004
25.1 0.988
25.1 0.988
18.5 0.728
Operation indicator (orange),
4 locations on circumference
ø10
ø0.394
8
0.315
18.5 0.728
0.6
0.024
15.1 0.594
4 1
0.157 0.039 Operation indicator (orange),
4 locations on circumference
ø2.9 mm ø0.114 in cable,
2 m 6.562 ft long
(Products with “-C5” or “-R5”
at the end of model No.:
5 m 16.404 ft)
ø2.9 mm ø0.114 in cable,
2 m 6.562 ft long
(Products with “-C5” or “-R5”
at the end of model No.:
5 m 16.404 ft)
3
0.118
M5 × 0.5 0.020
Toothed lock washer (Internally toothed)
23
DIMENSIONS(Unit: mm in)
The CAD data can be downloaded from our website.
GX-308M(K)-□ GX-312M(K)-□ GX-318M(K)-□ GX-330M(K)-□
GX-308ML(K)-□ GX-312ML(K)-□ GX-318ML(K)-□ GX-330ML(K)-□
Cable type / Pigtailed type
Sensor
Connector type
B
B
D
F
E
J
Operation indicator (orange),
4 locations on circumference
IO-Link communication indicator
[green, flashing (1-sec intervals)]
D
C
G
G
M8, M12 sizes: ø4 mm ø0.157 in
cable, 2 m 6.562 ft long
M18, M30 sizes: ø6 mm ø0.236 in
cable, 2 m 6.562 ft long
(Products with “-C5” or “-R5” at the
end of model No.: 5 m 16.404 ft)
A
F
E
J
< Cable type >
C
A
I
I
Operation indicator (orange)
IO-Link communication indicator [green,
flashing (1-sec intervals)]
H
H
Toothed lock washer (Internally toothed)
Toothed lock washer (Internally toothed)
< Pigtailed type >
Cable length:
0.3 m 0.984 ft
Symbol
Model No.
GX-308M(K)
GX-312M(K)
GX-318M(K)
GX-330M(K)
Symbol
Model No.
M12 × 1 0.039
A
B
C
M8 × 1
M8 × 0.039
M12 × 1
M12 × 0.039
M18 × 1
M18 × 0.039
M30 × 1.5
M30 × 0.059
37.8
1.488
47.1
1.854
55.3
2.177
60.3
2.374
4.4
0.173
3.7
0.146
8.5
0.335
8.3
0.327
A
M8 × 1
M8 × 0.039
M12 × 1
GX-312ML(K) M12 × 0.039
M18 × 1
GX-318ML(K) M18 × 0.039
M30 × 1.5
GX-330ML
M30 × 0.059
M30 × 1.5
GX-330MLK M30 × 0.059
GX-308ML(K)
B
37.8
1.488
47.1
1.854
55.3
2.177
60.3
2.374
82.3
3.240
Shielded type
D E F G
26
1.024
33
1.299
38
1.496
43
1.693
-
10
0.394
12
0.472
12
0.472
12
0.472
4
0.157
4
0.157
4
0.157
4
0.157
Non-shielded type
C D E F G
4.4 26
6
8
0.173 1.024 0.236 0.315
3.7 33
7
10
0.146 1.299 0.276 0.394
8.5 38 10 10
0.335 1.496 0.394 0.394
8.3 43 13 10
0.327 1.693 0.512 0.394
8.3 65 15 10
0.327 2.559 0.591 0.394
-
H
I
J
3
0.118
4
0.157
4
0.157
5
0.197
15
0.591
21
0.827
29
1.142
42
1.654
13
0.512
17
0.669
24
0.945
36
1.417
H
I
J
3
15 13
0.118 0.591 0.512
4
21 17
0.157 0.827 0.669
4
29 24
0.157 1.142 0.945
5
42 36
0.197 1.654 1.417
5
42 36
0.197 1.654 1.417
Symbol
Model No.
GX-312M(K)
GX-318M(K)
GX-330M(K)
Symbol
Model No.
A
B
M12 × 1
M12 × 0.039
M18 × 1
M18 × 0.039
M30 × 1.5
M30 × 0.059
C
Shielded type
D E F
48
M12 × 1
1.890 M12 × 0.039
53
M12 × 1
2.087 M12 × 0.039
58
M12 × 1
2.283 M12 × 0.039
33
1.299
38
1.496
43
1.693
G
H
I
J
12
4
4
21
17
0.472 0.157 0.157 0.827 0.669
12
4
4
29
24
0.472 0.157 0.157 1.142 0.945
12
4
5
42
36
0.472 0.157 0.197 1.654 1.417
-
Non-shielded type
C
D E F G
A
B
M12 × 1
48
M12 × 1
33
7
10
M18 × 1
53
M12 × 1
38
10
10
H
I
J
4
21 17
GX-312ML(K) M12 × 0.039 1.890 M12 × 0.039 1.299 0.276 0.394 - 0.157 0.827 0.669
4
29 24
GX-318ML(K) M18 × 0.039 2.087 M12 × 0.039 1.496 0.394 0.394 - 0.157 1.142 0.945
GX-330ML
GX-330MLK
M30 × 1.5
58
M12 × 1
M30 × 0.059 2.283 M12 × 0.039
M30 × 1.5
80
M12 × 1
M30 × 0.059 3.150 M12 × 0.039
43 13 10
1.693 0.512 0.394
65 15 10
2.559 0.591 0.394
-
5
42 36
0.197 1.654 1.417
5
42 36
0.197 1.654 1.417
Note: M8 type models are not available in the connector type.
Please contact ..........
Industrial Device Business Division
7-1-1, Morofuku, Daito-shi, Osaka 574-0044, Japan
industrial.panasonic.com/ac/e/
©Panasonic Corporation 2020
No.CE-GX300-6 November, 2020
Specifications are subject to change without notice.
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湘ICP备2023018690号
