User's Manual

174-082010_Digital AVC Page 16 of 17
B. Turn the HTR potentiometer on the top panel until the either the voltage measured between pins 6,
Analog Signal Common (violet) and 7, Pressure Signal Output (yellow) reads the voltage
corresponding to the pressure as read on the Pressure Vs. Voltage chart for the tube being
measured or, if using serial communication, until the proper pressure is read while using the
streaming P1 command.
C. THE LOW END is now adjusted.
NOTE: If re-calibration is required you must repeat the High End adjustment first.
The following table specifies the THI reference tube to be used in the calibration of a gauge based upon
the type of gauge tube being used.
Ref. Tube Gauge Tube
DB-16D DV-4
DB-18 DV-5
DB-20 DV-6