Pressure Systems 9022 - Manual (Page 134)

Pressure Systems, Inc. NetScanner™ System (9016, 9021, & 9022) User’s Manual
www.PressureSystems.com 4 - 24
4.8 Line Pressure Precautions
When operating 9016 pressure scanners at elevated line or reference pressures, care must be taken
when any command is issued that may result in shifting of the calibration valve. The user must
ensure that any valve shifts will not result in the internal DH200 transducers being exposed to
pressure transients that may exceed the proof pressure rating of the transducer. This is especially
important when operating at elevated reference pressures as a shift to the CAL position may result
in a rapid pressure change if the CAL/CAL REF pressure varies greatly from the measurement
reference pressure.