DH Instruments PPC4, Руководство по эксплуатации и обслуживанию

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PPC4™ OPERATION AND MAINTENANCE MANUAL
© 2009 DH Instruments, a Fluke Company Page 6
2.2 Site Requirements
The PPC4 can be installed on any flat, stable surface at a convenient height. The front feet can be
extended so that the unit can be inclined for easier viewing. The PPC4 can also be mounted in a standard
19 in. rack using the optional rack mount kit.
Minimizing the distance between the PPC4 and the device or system under test will enhance control
performance and reduce pressure setting times.
Ready access to the PPC4 rear panel should be considered to facilitate making and breaking
pressure connections.
Pneumatic and communications connections to a RPM4 pressure monitor should be considered if a RPM4
pressure monitor will be used as an external reference pressure measurement device (see Section 2.3.6).
The Self Purging Liquid Trap (SPLT) , if used, should be mounted vertically at the low point of the
connection between the PPC4 TEST(+) port and the test (see Section 2.3.7.1).
If you are using a G15K or BG15K Q-RPT with a Dual Volume Unit (DVU) , its location and connections
should be considered (see Section 2.3.7.2).
Support facilities required include:
•
An electrical power source of 100 to 240 VAC, 50 - 60 Hz.
•
A continuous, regulated pressure supply of clean, dry, non-corrosive gas at PPC4 maximum
control pr 10 % (70 kPa (10 psi) in the case of a BG15K Q-RPT) to be connected to the
PPC4
SUPPLY port. Lower gas pressure supply can be used but should exceed the maximum
desired test output pressure by 10 to 20 %.
•
A vacuum source of less than 1 psia (7 kPa) and with displacement of at least 90 lpm (3 cfm)
if control of pressures under 3 psi (20 kPa) gauge is desired.
2.3 Setup
2.3.1 Preparing For Operation
To prepare PPC4 for check out and operation:
Remove the plastic caps from the PPC4 rear panel pressure connections.
Remove the protective plastic sheet from the front panel display.
Familiarize yourself with the front and rear panel (see Section 2.3.2).
Then proceed with Sections 2.3.3 to 2.3.10.