Proximity Sensors Capacitive
Thermoplastic Polyester Housing
Types CA18CAN/CAF.....
• 4TH Generation TRIPLESHIELDTM
• Adjustable sensing distance: 2 - 10 mm Flush or
3-15 mm Non-flush
• Protection: short-circuit, transients and reverse polarity
• Dust and humidity compensation
• Dust or Temperature alarm output
• Rated operational voltage: 10-40 VDC
• Output: DC 200 mA, NPN or PNP
• Standard Output: NO and NC
• LED indications for Power-supply, Target and Stability
• IP67, IP68, IP69K, Nema 1, 2, 4, 4X, 5, 6, 6P, 12
• Cable and M12 connector versions available
Product Description
The CA18CA.. capacitive
proximity switches feature
an improved 4TH Generation TRIPLESHIELDTM technology. Furthermore, these
sensors feature increased
immunity to electromagnetic
interference (EMI), especially to frequency drives. Not
only does 4TH Generation
TRIPLESHIELDTM
feature
an increased EMI, but it
also increases the immunity to humidity and dust. The
implementation of stability
indication eases the setup
procedure as both Stable ON
and Stable OFF positions are
Ordering Key
indicated by the green and
yellow LEDs.
The sensing distance is
increased by 25 % allowing
room for additional stable
detection.
The Dust Alarm function
gives an early warning that
the sensing surroundings
have to be cleaned.
The Temperature alarm function raises an alarm if the
sensing surface goes beyond
60 degree Celcius.
The sensor housing is featuring IP69K as well as approval
by ECOLAB for cleaningand disinfection agents.
CA18CAN12NAM1
Capacitive proximity switch
Housing diameter (mm)
Housing material
Housing length
Detection principle
Rated operating dist. (mm)
Output type
Output configuration
Connection type
Type Selection
Housing
diameter
M 18
M 18
M 18
M 18
M 18
M 18
M 18
M 18
M 18
M 18
M 18
M 18
Sensor
type
Output Output Connection Rated operating
type function
distance (Sn)
Flush
Flush
Flush
Flush
Flush
Flush
Non-Flush
Non-Flush
Non-Flush
Non-Flush
Non-Flush
Non-Flush
NPN
NPN
PNP
PNP
PNP
PNP
NPN
NPN
PNP
PNP
PNP
PNP
NO+NC
NO+NC
NO+NC
NO+NC
NO
NC
NO+NC
NO+NC
NO+NC
NO+NC
NO
NC
Cable
M12 Plug
Cable
M12 Plug
Cable
Cable
Cable
M12 Plug
Cable
M12 Plug
Cable
Cable
Ordering no.
Standard
0 - 8 mm CA18CAF08NA
0 - 8 mm CA18CAF08NAM1
0 - 8 mm CA18CAF08PA
0 - 8 mm CA18CAF08PAM1
0 - 8 mm
0 - 8 mm
0 - 12 mm CA18CAN12NA
0 - 12 mm CA18CAN12NAM1
0 - 12 mm CA18CAN12PA
0 - 12 mm CA18CAN12PAM1
0 - 12 mm
0 - 12 mm
Ordering no.
Dust alarm
CA18CAF08PODU1) CA18CAF08POTA1)
CA18CAF08PCDU1) CA18CAF08PCTA1)
CA18CAN12PODU2) CA18CAN12POTA2)
CA18CAN12PCDU2) CA18CAN12PCTA2)
1)
2)
Specifications
Ordering no.
Temperature alarm
Replaced by CA18CAF08BPA2IO
Replaced by CA18CAN12BPA2IO
EN 60947-5-2
Rated operating distance (Sn)
Non-flush mounted sensor
0 - 12 mm (factory setting
12 mm),
(ref. target 36x36 mm ST37,
1 mm thick, grounded)
Specifications are subject to change without notice (10.12.2020)
Flush mounted sensor
0 - 8 mm (factory setting
8 mm - non-flush mounted)
(ref. target 24x24 mm ST37,
1 mm thick, grounded)
1
CA18CAN/CAF.....
Specifications (cont.)
EN 60947-5-2
Sensitivity control
Adjustable by potentiometer
Electrical adjustment
11 turns
Mechanical adjustment
16 turns
Adjustable distance
Flush types
2 to 10 mm
Non-flush types
3 to 15 mm
Effective operating dist. (Sr) 0.9 x Sn ≤ Sr ≤ 1.1 x Sn
Usable operating dist. (Su)*
0.85 x Sr ≤ Su ≤ 1.15 x Sr
Repeat accuracy (R)
≤ 5%
Hysteresis (H)
3 - 20%
Rated operational volt. (UB) 10 to 40 VDC (ripple incl.)
Ripple
≤ 10%
Output function
NPN or PNP
Output switching function
N.O. and N.C.
Rated operational current (Ie) ≤ 200 mA (continuous)
Capacitive load
100 nF
No-load supply current (Io)
≤ 12 mA
Voltage drop (Ud)
≤ 2.0 VDC @ 200 mA DC
Minimum operational
current (Im)
≥ 0.5 mA
OFF state current (Ir)
≤ 100 μA
Protection
Short-circuit, reverse
polarity, transients
Frequency of operating
cycles (f)
50 Hz
Response time OFF-ON (ton)
≤ 10 ms
Response time ON-OFF (toff) ≤ 10 ms
Power ON delay (tv)
≤ 200 ms
Indication
Target detected
LED, yellow
Power and detection stability LED, green
Environment
Installation category
III (IEC 60664, 60664A;
60947-1)
Degree of pollution
3 (IEC 60664, 60664A;
60947-1)
Degree of protection
IP 67, IP 68/60 min., IP69K**
(IEC 60529; 60943-1)
NEMA type
1, 2, 4, 4X, 5, 6, 6P, 12
Operating temperature
-30 to +85°C ( -22 to +185°F)
Max. temperature on sensing face 120°C (248°F)
Storage temperature
-40 to +85°C (-40 to +185°F)
Rated insulation voltage
1 kVAC (rms)
IEC protection class III
Tightening torque
≤ 2.6 Nm
Connection
Cable
PVC,
Ø5.2 x 2 m, 4 x 0.34 mm2
Oil proof, grey
Plug (M1)
M12 x 1 - 4 pin
Temperature alarm output
60ºC ± 5ºC
Response time examples
TA = 25°C
14 sec @ TEXC = 800°C
315 sec @ TEXC = 80°C
TRIPLESHIELDTM
Exceeding the norms for
capacitive sensors
Electrostatic discharge
(EN61000-4-2)
Contact discharge
> 40 kV
Air discharge
> 40 kV
Electrical fast transients/burst
(EN 61000-4-4)
±4kV
Surge
(EN 61000-4-5)
Power-supply
> 2kV (with 500 Ω)
Sensor output
> 2kV (with 500 Ω)
Wire conducted disturbances
(EN 61000-4-6)
> 20 Vrms
Power-frequency magnetic
fields (EN 61000-4-8)
Continous
> 60 A/m, 75.9 µ tesla
Short-time
> 600 A/m, 759 µ tesla
Radiated RF electromagnetic
fields (EN 61000-4-3)
> 20 V/m
Shock (IEC 60068-2-27)
30 G / 11ms, 3 pos, 3 neg
per axis
Rough handling shocks
(IEC 60068-2-31)
2 times from 1m
100 times from 0,5m
Vibration (IEC 60068-2-6)
10 to 150 Hz, 1 mm / 15 G
Housing material
Body
PBT, grey,
30% glass reinforced
Cable gland
PA12, black
Fingernuts
PA12, black
Trimmershaft
Nylon
Weight
Cable version
150 g
Plug version
75 g
Approvals
cULus (UL508), ECOLAB
CE-marking
Yes
MTTFd
825 years @ 40°C (+104°F)
* For Flush type sensor flush mounted in conductive material, the usable operating distance (Su) is 0.80 x Sr ≤ Su ≤ 1.2 x Sr for temperatures
exceeding 0 - 60 °C ( 32 - 140°F).
** The IP69K test according to DIN 40050-9 for high-pressure, high-temperature wash-down applications.
The sensor must not only be dust tight (IP6X), but also able to withstand high-pressure and steam cleaning.
The sensor is exposed to high pressure water from a spray nozzle that is fed with 80°C water at 8’000–
10’000 KPa (80–100bar) and a flow rate of 14–6L/min. The nozzle is held 100 –150 mm from the sensor at
angles of 0°, 30°, 60° and 90° for 30s each. The test device sits on a turntable that rotates with a speed of 5
times per minute. The sensor must not suffer any damaging effects from the high pressure water in appearance and function.
90°
60°
30°
0°
2
Specifications are subject to change without notice (10.12.2020)
CA18CAN/CAF.....
Adjustment Guide
The environments in which
capacitive
sensors
are
installed can often be unstable as regards temperature,
humidity, object distance and
industrial (noise) interference.
That is why Carlo Gavazzi
offers as standard features in
all TRIPLESHIELDTM capacitive sensors a user-friendly
sensitivity adjustment instead
of a fixed sensing range. Likewise, these sensors provide
an extended sensing range to
accommodate mechanically
demanding areas and tem-
Note:
The sensors are factory set
(default) to nominal sensing
range Sn.Sn.
perature stability to ensure
high immunity to electromagnetic interference (EMI) and a
minimum need for adjusting
sensitivity, if the temperature
varies.
Wiring Diagram
NPN
PNP Dust- or Temperature alarm on NC
BN
BN
BK
WH
10 - 40 VDC
200 mA
BK
10 - 40 VDC
200 mA
WH (DU/TA)
BU
BU
PNP
PNP Dust- or Temperature alarm on NO
BN
BN
BK
BK
10 - 40 VDC
200 mA
WH
10 - 40 VDC
200 mA
WH (DU/TA)
BU
BU
Detection Diagram
X
-0,24
Non-flush
Distance (inch)
-0,16
-0,08
0
0,08
0,16
0,24
Distance (inch)
0,31
0,39
0,47
0,55
0,79
15
0,59
15
0,59
10
0,39
10
0,39
0,20
5
-5
0,00
-0,20
0
0,08
0,24
0,31
0,39
0,47
0,55
Sensor head
20
(mm)
0,79
(inch)
20
0
-0,16
0,16
0,98
5
-0,24
-0,08
-0,31
25
Sensor head
(mm)
-0,31
25
Flush
Y
Target
0
-5
0,98
0,20
0,00
-0,20
-0,39
-10
-15
-0,59
-15
-0,59
-20
-0,79
-20
-0,79
-25
-8
-0,98
-25
-8
-10
-6
-4
-2
0
2
4
6
8
10
12
14
Distance (mm)
Specifications are subject to change without notice (10.12.2020)
-6
-4
-2
(inch)
Sensor
-0,39
0
2
4
6
8
10
12
14
-0,98
Distance (mm)
3
CA18CAN/CAF.....
Detection Stability Indication
Target influence
Stable ON
Output ON
Output OFF
Stable OFF
Time
Green LED ON
Yellow LED ON
Output NO
Output NC
Dust alarm NO
>1 sec.
>1 sec.
>1 sec.
>2 sec.
Dust alarm NC
>1 sec.
>1 sec.
>1 sec.
>2 sec.
Dimensions
CA18CAF....
CA18CAF....M1
86
85
70
70
LED
M18 x 1.0 x 55
LED
15
CA18CAN....
CA18CAN....M1
86
85
70
70
LED
8
M12 x 1.0
15
M18 x 1.0 x 55
M18 x 1.0 x 47
LED
15
8
Cable
15
M18 x 1.0 x 47
M12 x 1.0
Plug
STABLE
The back of the sensor
Sensitivity
adjustment
DIST.
Yellow
OUTPUT LED
Colour code
2
Green LED
1
3
1 Brown
2 White
3 Blue
4 Black
4
4
Specifications are subject to change without notice (10.12.2020)
CA18CAN/CAF.....
Installation Hints
Capacitive sensors have a
unique ability to detect al
most any material in liquid or
solid form. Capa
ci
tive sensors are able to detect me
tallic as well as non-metallic
objects. However, their traditional use is for non-metallic
materials such as:
• Plastics Industry
Resins, regrinds or mould
ed products.
To avoid interference from inductive voltage/
current peaks, separate the prox. switch power cables from any other power cables, e.g.
motor, contactor or solenoid cables
• Chemical Industry
Cleansers, fertilizers, liquid soaps, corrosives and
petrochemicals.
• Wood Industry
Saw dust, paper products,
door and window frames.
• Ceramics & Glass
Industry
Raw materials, clay or
finished products, bottles.
Relief of cable strain
• Packaging Industry
Package inspection for level or contents, dry goods,
fruits and vegetables, dairy
products.
Materials are detected due to
their dielectric constant. The
bigger the size of an object,
the higher the density of ma
terial, the better or easier it is
to detect the object.
Protection of the sensing face
The nominal sensing distan
ce for a capacitive sensor
is referred to a grounded
metal plate (ST37). For addi
tional information regarding
dielectric ratings of materials please refer to Technical
Information.
Switch mounted on mobile carrier
Not correct
Correct
The cable should not be pulled
A proximity switch should not serve as a Any repetitive flexing of the
cable should be avoided
mechanical stop
Delivery Contents
Accessories
• Capacitive switch: CA18CAN/CAF.......
• User manual
• 2 x M18 fingernuts
• Screwdriver
• Packaging: Cardboard box
• Connector type CONB14NF-... -series.
• Mounting Brackets AMB18-S.. (straight),
AMB18-A.. (angled)
Specifications are subject to change without notice (10.12.2020)
5