Network Compatible Pressure SensorAP-N series


Sensor amplifier: Single output type


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Single output type

Applicable sensor head

AP-41M, AP-41, AP-43, AP-44, AP-48

Configuration/Display range

-15 to +110 % of F.S.


±0.2 % of F.S.

Display resolution

AP-41M/41/44/48: Standard mode 0.1 kPa, High resolution mode 0.01 kPa
AP-43: Standard mode 0.001 MPa, High resolution mode 0.1 kPa

Power consumption


770 mW or less (at 24 V, 32 mA or less/at 12 V, 54 mA or less)

Expansion units

Max. 16 units (Dual output type is counted as 2 units.)*1

Control output(s)


Display temperature characteristic

±1 % of F.S. (When the temperature varies from 25 °C 77 °F)

Response time (Chattering prevention function)

1 ms/2.5 ms/5 ms/100 ms/500 ms/1,000 ms/5,000 ms selectable


Power voltage

12 to 24 VDC ±10 %, Ripple (P-P) 10 % max. Class2

Power consumption

Eco mode

560 mW or less (at 24 V, 23 mA or less/at 12 V, 37 mA or less)

Environmental resistance

Ambient temperature

0 to +50 °C 32 to 122 °F (No freezing)*3

Relative humidity

35 to 85 % RH (No condensation)

Vibration resistance

10 to 55 Hz, Double amplitude 1.5 mm 0.06", 2 hours in each of the X, Y, and Z directions

Shock resistance

500 m/s2, 3 times in each of the X, Y, and Z directions


Main unit and cover: Polycarbonate


Approx. 20 g

*1 Can connect to other N-bus sensor amplifiers. N-bus represents the wire-saving system for KEYENCE-manufactured sensor amplifiers.
*2 Number of outputs when connected to the communication unit NU Series. There are no control output wires.
*3 11 to 16 units connected: 0 to +45 °C 32 to 113 °F (When the sensor amplifier is installed on DIN rail on a metal plate)

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Process Controls / Process Sensors