GB-K Gas Booster Package Operation and Maintenance Manual
Page 23
© 1998 - 2000
DH Instruments, Inc
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5.1
GENERAL INFORMATION
Numerical references in this section refer to Figure 2.
The GB-K consists of a Pneumatically Operated Gas Booster Pump (6), a valve, a volume cylinder,
three regulators, three pressure gauges and various tubing and fittings. Several predictable
problems can arise and are addressed in this section.
It is recommended that whomever performs the following troubleshooting procedures described in this
section become familiar with the system. Please see the introductory WARNING, Section 2.3,
Section 3.1, Figures 1 ~ 3 for important information.
For problems not covered in this section or direct technical assistance, please contact a
DHI
Authorized Service Center (see Section 6).
5.2
BOOSTER WILL NOT RUN
The booster is a pneumatically operated pump. The reciprocating action is caused by an imbalance
of forces within the pump due to the opposing drive air pressure and the instrument gas supply that is
being boosted. If the booster is not operating, it means that all forces are equal or that the pistons
are seized.
•
Check that the Shop Drive Air Shut-off Valve (11) is open. If not, fully open the valve.
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Check that shop drive air pressure supply is actually present at the Shop Drive Air Inlet Fitting
(8). If not, ensure gas is supplied at the proper pressure and flow value (see Section 2.2).
•
Check that the Shop Drive Air Regulator (10) is set to a pressure of 0.15 MPa (20 psig) or higher
and that minimum flow requirements are met (see Section 2.2).
•
Check that the High Pressure Outlet Regulator (7) is not closed. If closed, set it to the desired
pressure; see Section 3.3 or Section 3.4.
•
Check that there are no gas leaks in the shop drive air circuit. Repair any existing leaks.
