PG7000™ OPERATION AND MAINTENANCE MANUAL
© 1998-2008 DH Instruments, a Fluke Company
Page 28
The maximum working pressure of the PG7202 platform when used in oil with a
PC-7300 module is 200 MPa (30 000 psi). The maximum pressure when using a
PC-7200 module is 110 MPa (16 000 psi). Do not exceed this limit.
Switching a PG7202 from oil to gas operation
Remove the piston-cylinder module.
Disinstall the PC-7300 oil operated piston-cylinder
module for the PG7202 platform.
Disconnect the oil generation/control system from the DRAIN port.
Place a paper
towel under the DRAIN port and disconnect the tube to the oil generation/control system.
Let all the oil run out of the PG7202 platform.
Remove the DH500 plug from the TEST port.
Place a paper towel under the TEST
port and remove the DH500 plug. Let all the oil run out of the PG7202 platform..
Install a PC-7200 gas operated, liquid lubricated piston-cylinder module in the
PG7202 platform.
Install the piston-cylinder module (see Section 2.3.2).
Connect the gas generation/control system to the TEST port.
Connect a tube from
the oil generation/control system to the PG7202 TEST port and tighten it (torque DH500
glands to 15 Nm (12 ft.lb)).
Prepurge the oil from the PG7202 mounting post.
Hold a paper towel lightly over the
DRAIN port opening. Leaving the drain port open, use the gas generation/control
component to flow enough gas through the mounting post to just lift the piston.
Purge the PG7202 mounting post.
Purge the PG7202 mouting post using the standard
purging procedure (see Section 5.2.4) and finish by tightening the plug in the DRAIN port.
Operate with gas as the test medium.
The PG7202 can now be operated with gas as
the test medium.
The maximum working pressure of the PG7202 platform when used with a PC-7200 module
is 110 MPa (16 000 psi). Do not exceed this limit.
2.4
POWER UP AND VERIFICATION
2.4.1
POWER UP
Turn the PG7000 power ON by pressing the power ON/OFF switch on the rear panel of the
PG Terminal. Observe the PG terminal display as the terminal connects with the PG7000
Platform, tests, initializes and goes to the main run screen (see Section 3.7).
If
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displays for more than 5 seconds, the communications between the
PG7000 and the PG Terminal are failing. Check that the PG7000 to PG Terminal cable is
properly installed.
If PG7000 fails to reach the main run screen, service may be required. Record the sequence
of operations and displays observed and contact a
DHI
Authorized Service Provider
(see Table 32).
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