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149-072011 Model 2002 Vacuum Gauge Page 31 of 38
9. 0-10V Interface Option Board
The 0-10 V interface board is available as an option for the Model 2002. This board provides dual voltage
channels linearly proportional to the HPM 2002’s pressure reading. Please note that use of the Model 2002
with this option requires a CPU with firmware version 1.6 or later for proper operation.
9.1 0-10V Interface Connector Pin Assignmets
Pin Connection
1...................................................................................................................................... Channel 1 Output (+)
2.................................................................................................................. Channel 1 Shield/Analog Common
3.............................................................................................................................................Channel 1 Output
7....................................................................................................................................... Channel 2 Output (-)
8...................................................................................................................................... Channel 2 Output (+)
9.................................................................................................................. Channel 2 Shield/Analog Common
Both output channels are true differential and are short circuit protected with 100 Ω output impedance.
While this allows either side of the output channel to be grounded, best results will be obtained by using a
differential input measurement system. The output can be modified for single ended use, if necessary
contact the factory for details.