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Manual: 153-082010_HPM 4-6 Vacuum Gauge Page 9 of 12
5.1. Calibration in a Vacuum System
1 Install a DV-4 or DV-6 sensor in your vacuum system and evacuate vacuum chamber to a
pressure less than 1.00E-04 Torr.
NOTE: Refer to Fig 3 for locations of calibration pots. Adjust only the pot that
corresponds to the particular type of sensor tube installed (DV4 or DV6).
2 DV-4 or DV6 zero adjustment pot:
a. Remove battery compartment cover.
b. Adjust DV-4 or DV6 (as required for particular type of tube installed) calibration pot, until
display reads 0.00.
3 The HPM4/6 is now calibrated. Slide switch to OFF position and disconnect gauge cable from
sensor.
4 Re-Install battery compartment cover.
5.2. Calibration with a Reference Tube
NOTE: Refer to Fig 3 for locations of calibration pots. Adjust only the pot that
corresponds to the particular type of sensor tube installed (DV4 or DV6).
5.0 Calibration