Clamp-On Flow SensorFD-Q series

MU-N12

Multi-Sensor Controller, Expansion Unit

SPECIFICATIONS

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Model

MU-N12

Main unit/Expansion unit

Expansion unit

Response time

Depends on the connected sensor model*1

Power supply

Power supply voltage

24 VDC, ripple (P-P) 10% or less, Class 2 or LPS

Current consumption

55 mA or less (without load)*2

I/O

Control output

4 max.,
NPN open collector/PNP open collector selectable,
24 V or less,
Main unit: 50 mA or less*3,
Expansion unit: 20 mA or less,
Residual voltage: 2 V or less,
N.O./N.C. selectable
*1*4

External input

5 max.,
Short-circuit current: NPN: 1 mA or less,
PNP: 2 mA or less,
For the applied voltage, see wiring diagrams
(page 3 of the instruction manual)
*1*4

Analog output

-

Protection circuit

Protection against reverse power connection,
power supply surge, output overcurrent,
output surge, and reverse output connection

Expansion units

Up to 4 expansion units*5

Sensor
connection
specification

Allowable sensor current

150 mA or less

N-bus
connection
specification

Allowable passing
current

900 mA or less

Environmental
resistance

Ambient
temperature

-20 to +50°C -4 to 122ºF (no freezing)

Ambient humidity

35 to 85%RH (no condensation)

Shock resistance

1,000 m/s2 in X, Y, Z axis directions respectively 6 times

Vibration resistance

10 to 55 Hz Double amplitude 1.5 mm 0.06" in the X, Y, Z axis directions respectively, 2 hours

Material

Case and dust cover: Polycarbonate
Buttons: Polyacetal
Display panel: PMMA

Weight

Approx. 70 g

*1 The response time, as well as the types and number of inputs and outputs that are available, vary depending on the connected sensor model.
For details, see the specific "MU-N Series User's Manual" for the model that will be connected.
*2 1185 mA or less when a sensor is attached, 4 outputs (with loads) are used, and expansion units are connected.
*3 20 mA or less: When using the expansion unit.
*4 For more information on Control output, External input, and Analog output wire allocation, please refer to the table of "Power Cable Pin Layout" on page 3 of this manual.
*5 Up to 5 N-bus devices, including the main unit (or network unit), can be linked together.

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