Model 3710 Plasma Control Console
Operator’s
Manual
_____________________________________________________________________________________________________________________
Issued: 03/11
Page
54
A4.3 Turn gas supply source OFF and turn the regulator control
clockwise an additional one-half turn to balance input and
output pressures. Maintain console power to keep the
solenoid valve open during testing. Note the pressure
indicated on the tester and monitor it for 15 minutes. A
pressure decrease of 0.3 psi or more at any time in the 15-
minute time period indicates a leak. Refer to section 4,
locate and correct the leak.
A-5. Final Cleanup and Adjustment
A5.1 Disconnect and remove all test fittings, plugs and other
items used during the test procedure.
A5.2 Reconnect all cables and hoses to the console. Inspect sup-
ply hose connections for leaks before resuming operations.
A5.3 Consider testing complete ONLY if these conditions are
met:
•
No leaks were found in the gas circuits.
•
Any leaks found were corrected (see section A-6).
A-6. Corrective Action: Locate and Correct Leak
This section outlines the procedure to be used to correct a leak if found.
EXPLOSION HAZARD -- Be sure the testing gas supply tank/line
has a safety over-pressurization relief valve installed.
ELECTRIC SHOCK HAZARD -- Some circuits inside the console
carry 115 volts AC. Procedures may require disabling some of the
safety circuits during the corrective action procedure. Use extreme
caution when working inside the console. All safeties must be
restored to proper operation.
A6.1 Turn off all gases and disconnect console power using
lock-out/tagout
procedures.
