INTRODUCTION

PPCH-G™, is a pressure controller/calibrator for gas
pressure operation from 1 to 100 MPa (150 to 15 000 psi).
As with the rest of DHI's PPC family of pressure controllers, the emphasis is on high end performance, minimizing measurement uncertainty and maintaining precise control over a very wide pressure range… in a compact and rugged instrument.

Individually characterized, quartz reference pressure
transducer (Q-RPT) modules increase precision and
reduce measurement uncertainty. The AutoRange™
feature supports infinite ranging, automatically
optimizing all aspects of operation for the exact desired
range and taking pressure controller rangeability to a
new level.

A unique pressure control system and gas booster
accessory provide unlimited, on-demand pressure,
very high control resolution and 10:1 pressure control
turndown. Five different control modes are included
for maximum versatility. Open architecture allows
reference pressure measurement to be internal to or
remote from the controller. If desired, the reference
can be located at the test measurement point and
independently removed for recalibration.

With all of this, PPCH-G opens new doors in automated
high gas pressure calibration and test applications.