7. MAINTENANCE OF TRACEABILITY AND RECALIBRATION
Page 155 © 2005 DH Instruments, Inc.
To remove the PG7601 reference vacuum CDG assembly and power supply/read
out, proceed as follows:
Prepare the ADCS-601 for removal of the CDG:
Vent the ADCS-601 system by pressing the [VENT] button on the ADCS
Run Screen (see Section 4.2.3). Wait for the operation to complete.
Put the system into gauge mode
by pressing the [MODE] button on the
ADCS Run Screen. Wait for the operation to complete.
Press the [Pause] button on the ADCS Main Tool Bar to suspend remote
communication within the ADCS-601 system (see Section
4.3.3).
Press the [ESC] key on the PG7000 Terminal.
Remove the CDG:
Disconnect the CDG isolation valve (valve 3) 1/8 in. pneumatic actuation line
(V9) using the quick connector on the valve.
Disconnect the electrical cable on the top of the CDG.
Break the KF40 fitting on the AMH-38 vacuum chamber or the KF25 fitting on
the adaptor. DO NOT BREAK ANY FITTINGS ON THE CDG SIDE OF THE
VALVE.
Remove the CDG supply/readout:
Remove the Control Cabinet main rear panel to access the inside of the cabinet.
Reach inside the cabinet to access the panel mount retainer screws on the
CDG supply/readout. Loosen the screws and remove the supply/readout.
When shipping the CDG for calibration include the CDG, the supply/readout and
the cable that connects the CDG to the supply read/out.
When the CDG and its power supply/readout are received from recalibration,
reinstall them onto the PG7601 and into the ADCS-601 control cabinet.
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