Fluke A20M-AF ユーザーズマニュアル

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1. INTRODUCTION 
 
Page 1 
© 2007 DH Instruments, a Fluke Company 
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1.1 
PRODUCT OVERVIEW 
RPM4/HPMS A70M/A20M-AF is the combination of an RPM4 A70M/A20M-AF reference pressure 
monitor and an HPMS High Pressure Mounting System. 
RPM4 A70M/A20M-AF is a stand-alone, microprocessor driven, reference pressure monitor intended to 
accurately measure gas pressure in a variety of pressure calibration, measurement and testing 
applications.  It has been designed to provide very high performance and extensive features combined 
with maximum versatility, ease of use and durability.  RPM4 A70M/A20M-AF covers the range from 0 to 
10 000 psi gauge and atmosphere to 10 000 psi absolute using two high accuracy quartz reference 
pressure transducers (Q-RPTs) and an on-board barometer to measure pressure. 
RPM4 A70M/A20M-AF is controlled locally by the operator using its front panel display, keypad and foot 
pedal or remotely by a computer using ASCII character command strings over its RS-232 and IEEE-488 
interfaces. 
RPM4 A70M/A20M-AF uses an AutoRange feature to automatically select the most appropriate Q-RPT 
and to optimize the RPM4 setup to cover the range. 
The HPMS mounts the RPM4 at a convenient viewing angle and contains the hardware to isolate the 
RPM4’s low pressure Q-RPT (A20M (3 000 psi)) when the high pressure Q-RPT (A70M (10 000  psi) ) is 
in use. 
RPM4/HPMS A70M/A20M-AF is typically delivered as part of a PGC-10000-AF Pneumatic Gauge 
Calibrator.  The PGC-10000-AF system includes a GPC1-10000-AF pneumatic pressure controller and a 
GB-152-AF gas booster that have their own Operation and Maintenance Manuals.