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Separate Amplifier Type Pressure SensorAP-40 series

Amplifier Unit NPN


[Discontinued model]

This model has been discontinued.

Compliance with the certification standard is ensured as of the time of shipment from our company.

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Amplifier Unit, NPN

Applicable sensor head

AP-41, AP-43, AP-44

Rated pressure

-15% to +110% of F.S.


3 1/2-digit, 2-colour, 7-segment LED (Character height: 11 mm), Display cycle: 5 times/sec.

Display resolution

AP-41: 0.1 kPa, 1 mmHg, 0.1 inchHg, 0.001 bar
AP-43: 0.001 MPa, 0.01 kgf/cm2, 0.2 Psi, 0.01 bar
AP-44: 0.2 kPa, 2 mmHg, 0.1 inchHg, 0.002 bar

Display temperature characteristic

±1.0 % max. of F.S.


With supplied mounting bracket (2 types) or optional panel mounting bracket*1

Response time (Chattering prevention function)

2.5/5/100/500 msec


Control output

100 mA max. (40 V max.), Residual voltage: 1 V max. 2-output (N.O./N.C. selectable)


Power voltage

12 to 24 VDC ±10 %, Ripple 10 % or less

Current consumption

105 mA (12 V), 55 mA (24 V) (including sensor head)

Environmental resistance

Ambient temperature

0 to +50 °C (No freezing)

Relative humidity

35 to 85 % RH (No condensation)

Vibration resistance

10 to 55 Hz, Double amplitude 1.5 mm, 2 hours in each of the X, Y, and Z axis

Shock resistance

100 m/s2, 3 times in each of X, Y and Z axis


Front case: polyamide, front panel sheet: PET, rear case: polysulfone, cable: oil-proof cabtyre cable


80 g (including 2 m cable) (28 g without cable)

*1 Two types of panel mounting brackets are available: OP-31357 (black) and OP-32908 (gray).

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Process Controls / Process Sensors