Granville-Phillips Micro-Ion 354 E Series, Instruction Manual, Page: 14 / 54

Chapter 2
14
Micro-Ion E Module Instruction Manual 354011, Rev. A
Wiring for Analog Module
• If the module has an analog output, see Figure 2-2.
• Table 2-1 lists pin designations for the 9-pin subminiature D connector.
Figure 2-2 WiringTerminals for Micro-Ion E Module with Analog Output
Table 2-1 Wiring Pin Designations for Analog Module
Pin designation Function Pin number
Micro-Ion E gauge ON/OFF (+) Switch between pins 1 and 2 turns Micro-Ion E gauge ON or OFF 1
24 Vdc power supply ground (–) Negative connection for 24 Vdc power supply 2
Power supply input (+) Positive connection for 24 Vdc power supply 4
Analog output (+) Analog output produces a 0 to 10 Vdc output in linear proportion
to the logarithm of vacuum pressure 3
Analog output ground (–) 7
Micro-Ion E gauge status
(40 Vdc, 50 mA maximum) Open collector transistor output indicates Micro-Ion E gauge status
• Output is high (“source”) when Micro-Ion E gauge is OFF
• Output is low (“sink”) when Micro-Ion E gauge is ON 9
Not used Reserved 5
Not used Reserved 6
Not used Reserved 8
Not used
24 Vdc power input (+)
Analog output (+)
24 Vdc power ground (–)
Micro-Ion E gauge ON/OFF (+)
Micro-Ion E gauge status
Not used
Analog output ground (–)
Not used
Male pins