Namur proximity switch, Namur proximity swith – external dc power – Liquid Controls IT375 User Manual

Page 22

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Sponsler, Inc.

Model IT375

Flowmeter Input Pg. 22


5. Coils














Note: If the input has a very high impedance,

the following link settings should be used:










6. Namur Proximity Switch












Note: If a 4-20mA output is installed, the supply to the proximity switch must be isolated.



7. Namur Proximity Swith – External DC Power



Note: Use this connection for battery or loop powered versions of the Model IT375.
If a 4-20mA output is installed, the supply to the proximity switch must be isolated.

Link Settings

Link 1

Link 2

Link 3

COIL

PULSE

DB

DBH

NPS

825R input impedance


eg. Millivolt signal from paddlewheel
or turbine (15mV P-P minimum).

Link Settings

Link 1

Link 2

Link 3

COIL

PULSE

DBL

DBH

NPS

Link Settings

Link 1

Link 2

Link 3

COIL

PULSE

DBL

DBH

NPS

825R input impedance


For IS connections of Namur switches
see Section 8.

Link Settings

Link 1

Link 2

Link 3

COIL

PULSE

DBL

DBH

NPS

825R input impedance


For IS connections of Namur switches
see Section 8.

8+

7-

+12 Volts

0 V

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