Edwards AIM-S-NW25 Instruction Manual page 12

Active inverted magnetron gauge

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NRA737880 Issue E

The connection to pin 6 is optional. Make the connection to pin 6 if you want to connect the error signal to a d.c.

relay: you must connect a suppression diode between pins 1 and 6 to protect the AIM Gauge from transient voltages

generated when the d.c. relay is switched off.

Connect a switch between pins 2 and 7 to enable and disable the gauge (refer to

Section

4.2). If you want to measure

the gauge identification signal (which identifies the AIM Gauge), measure the resistance between pins 4 and 5.

Page 7

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Nra737000