Slim Pressure Sensor
E8EB
CSM_E8EB_DS_E_2_1
Ideal for Workpiece Position and
Original Pressure Checking
• The 0 to 100 kPa model can be used for workpiece position
checking.
• The 0 to 1MPa model is ideal for original pressure checking.
• Degree of protection conforms to IEC IP54.
Be sure to read Safety Precautions
on page 6.
Ordering Information
Pressure range
Positive pressure
Positive pressure
Negative pressure
0 to 1 MPa
0 to 100 kPa
0 to −100 kPa
ON/OFF output
NPN open collector
PNP open collector
E8EB-10C
E8EB-10B
E8EB-01C
E8EB-01B
E8EB-N0C2B
E8EB-N0B2B
Linear output
1 to 5 V
1
E8EB
Ratings and Specifications
Item
Model
Power supply voltage
Current consumption
Pressure type
Permissible pressure
range
Pressure setting range
Withstand pressure
Applicable fluid
Repeat accuracy
(ON/OFF output)
Accuracy
(linear output)
Hysteresis
(linear output)
Differential travel
(ON/OFF output)
Linearity
(linear output)
Response time
Linear output
ON/OFF output
Load current
Output applied
voltage
Residual
voltage
Indicator
Ambient temperature
Ambient humidity
Temperature influence
Voltage influence
Insulation resistance
Dielectric strength
Vibration resistance
Shock resistance
Degree of protection
Pressure inlet
Connection method
Weight (packed state)
Pressure port material
Accessories
E8EB-10C
E8EB-10B
E8EB-01C
E8EB-01B
E8EB
-N0C2B*
E8EB
-N0B2B*
24 VDC ±10% with a ripple (p-p) of 5% max.
20 mA max.
Gauge pressure
0 to 100 kPa
0 to −100 kPa
0 to 1 MPa
0 to 100 kPa
0 to −100 kPa
2 MPa
290 kPa
0 to 1 MPa
Noncorrosive and nonflammable gases
±1% FS max.
±3% FS max.
±1% FS max.
0.4 to 1.6% FS max.
±1% FS max.
5 ms max.
1 to 5 V with an output impedance of 20 Ω and a permissible resistive load of 10 kΩ min.
NPN open
PNP open
NPN open
PNP open
NPN open
PNP open
collector
collector
collector
collector
collector
collector
80 mA max.
30 VDC max.
NPN: 0.4 V max. (at the load current of 20 mA) and 1 V max. (at the load current of 80 mA)
PNP: 1.5 V max. (at the load current of 20 mA) and 2 V max. (at the load current of 80 mA)
Operation indicator (red)
Operating: −10°C to 55°C (with no icing)
Storage: −25°C to 70°C (with no icing)
Operating: 35% to 85% (with no condensation)
±0.12% FS/°C between 0°C and
±0.2% FS/°C between 0°C and 50°C
50°C
±0.2% FS/°C max. between
±0.3% FS/°C max. between −10°C and 0°C or 50°C and 55°C
−10°C and 0°C or 50°C and 55°C
±1% FS max.
100 MΩ min. (at 500 VDC) between current carry parts and case
500 VAC for 1 min between current carry parts and case
Destruction: 10 to 500 Hz, 1.5-mm double amplitude or 100 m/s2 whichever is smaller, for 2 hours each in
X, Y, and Z directions
Destruction: 1,000 m/s2 3 times each in X, Y, and Z directions
IEC 60529 IP54
Rc(PT)1/8
Pre-wired (standard cable length: 2 m)
Approx. 120 g
Zinc die-cast
Instruction manual
* These models are negative-pressure models.
2
E8EB
Engineering Data (Typical)
Differential Travel vs. Pressure
+5
1.4
1.2
0
1.0
−5
0.8
0.6
(−10) 0
20
40
Operating pressure fluctuation (% FS)
+10
−10
−20
(55) 60
0
50
Temperature (ºC)
6
5
4
3
+0.5
0
−0.5
24
27.6
Pressure (kPa)
Voltage (V)
Linear Output Fluctuation vs.
Temperature
E8EB-01C
Linear output fluctuation (% FS)
E8EB
+1.0
−1.0
20.4
100
Linearity
E8EB-01C
+10
Linearity deviation (%FS)
Linear Output Voltage vs. Pressure
Linear output voltage (V)
Operating Pressure Fluctuation vs.
Voltage
E8EB-01C
E8EB-01C
Differential travel (%FS)
Operating pressure fluctuation (%FS)
Operating Pressure Fluctuation vs.
Temperature
E8EB-01C
+5
0
+0.8
+0.4
0
2
−5
−0.4
1
−10
0
20
0
−20
0
0.2
40
−40
0.4
60
−60
0.6
80
100
Pressure (kPa)
−80
−100
−20 (−10)
0
20
40
(55) 60
Temperature (ºC)
−0.8
0
25
50
75
100
Pressure (kPa)
Pressure (kPa)
0.8
1
Pressure (MPa)
Linear output fluctuation (% FS)
Linear Output Fluctuation vs. Voltage
E8EB-01C
+10
+5
0
−5
−10
20.4
24
27.6
Voltage (V)
3
E8EB
Gap Measurement
When checking the gap between the
workpiece and the nozzle as shown in the
illustration, the output of the E8EB varies
with the surface roughness of the workpiece or the dimensions of the nozzle.
Workpiece
Nozzle length
Gap
Nozzle
diameter
Air supply
6
5
1.6-S∇∇∇
Influence of Nozzle Diameter
Conditions
Nozzle dia.: 2 mm
Nozzle length: 10 mm
Air pressure: 100 kPa
4
25-S∇∇∇
3
Linear output voltage (V)
Linear output voltage (V)
Examples with E8EB-01C (Typical)
Influence of Surface Roughness of
Workpieces
6
Influence of Nozzle Length
Conditions
Nozzle dia.: 10 mm
Surface roughness of workpiece:
1.6-S∇∇∇
Air pressure: 100 kPa
5
1 dia.
4
Linear output voltage (V)
E8EB
6
Conditions
Nozzle dia.: 1 mm
Surface roughness of workpiece:
1.6-S∇∇∇
Air pressure: 100 kPa
5
4
20 mm
3
3
2 dia.
10 mm
3 dia.
2
2 mm
2
2
50-S∇
1
50
100
150
200
250
Gap (µm)
• The output varies with the surface
roughness of the workpiece even
though the gap is constant.
• The rougher the surface of the workpiece is, the more noticeable the variation of output is with a small gap. The
variation rate versus gap change is not
large in such cases.
1
50
100
150
200
250
Gap (µm)
• The larger the nozzle diameter is, the
larger the variation rate of output versus
gap change is.
1
50
100
150
200
250
Gap ( µ m )
• The smaller the nozzle length is, the
larger the variation rate of output versus
gap change is.
4
E8EB
I/O Circuit Diagrams
NPN Output
Model
Timing Charts
Output Circuit
1,000,100
Pressure
(kPa)
E8EB-10C
E8EB-01C
Setting
0
Output
ON
OFF
Operation
Lit
indicator
(red)
Not lit
0
Operation
indicator
(red)
Brown
Pressure
Sensor
main
circuit
White (ON/OFF)
Black (linear output)
Load
Setting
Pressure
(kPa)
Blue
−100
E8EB-N0C2B
+24 V
Load
0V
ON
Output
OFF
Operation
Lit
indicator
(red)
Not lit
PNP Output
Model
Timing Charts
Output Circuit
1,000,100
Pressure
(kPa)
E8EB-10B
E8EB-01B
Setting
0
Output
ON
OFF
Operation
Lit
indicator
(red)
Not lit
Operation
indicator
(red)
Pressure
Sensor
main
circuit
Brown
+24 V
White (ON/OFF)
Black (linear output)
0
Load Load
Pressure
(kPa)
E8EB-N0B2B
Setting
0V
Blue
−100
ON
Output
OFF
Operation
Lit
indicator
(red)
Not lit
5
E8EB
Safety Precautions
WARNING
This product is not designed or rated for ensuring safety of persons.
Do not use it for such purposes.
Precautions for Correct Use
Do not use the product in atmospheres or environments that
exceed product ratings.
● Mounting
• If the diaphragm is damaged, the Pressure Sensor will not
operate properly. Do not insert a screwdriver or steel wire
into the interior of the pressure-sensitive parts through the
pressure port.
• The pressure inlet has an R (PT) 1/8 taper screw and M5 female screw that conforms to JIS Standards. Apply sealing
tape around the female taper screw so that no pressure
leakage will occur.
• The most-suitable wrench is 17 mm in size.
• Make sure that the tightening torque of the M5 female screw
is 9.8 N·m or less.
● Adjustment
Pressure Setting
• After the pressure is set with the pressure adjuster, cover
the adjuster with the rubber bushing so that no dust or any
other foreign material will penetrate into the interior of the
E8EB.
Dimensions
(Unit: mm)
E8EB
21
8.5
12.8 dia.
3.5
*
3.7
7 dia.
5.2 x 5.2
19±0.1
33.2
44
17
30
Rc (PT) 1/8
Pressure
adjuster
Two,
4.4-dia.
holes
10.9
17.5
1.5
Operation
indicator (red)
16.4
*3.8-dia. vinyl-insulated round cable with 4 conductors,
(Conductor cross-section: 0.2 mm2, Insulator diameter: 1.0 mm);
Standard length: 2 m
In the interest of product improvement, specifications are subject to change without notice.
6
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