Vial Pressurization Setpoint Deviations - Agilent Technologies 7697A Troubleshooting Manual

6
Pressures and Flows

Vial Pressurization Setpoint Deviations

76
If the HS cannot pressurize the vial to the method setpoint,
it logs the method deviation into the sequence log.
• Check the gas supplies.
• Check the delivery gas pressures to the HS. See the
Preparation Guide. The gas delivery pressure at the HS
vial gas bulkhead fitting should be 138 kPa (20 psi)
greater than the highest desired vial pressurization
setpoint.
• Check the sequence log for a dynamic leak check failure
entry for this vial.
• Check the method vial pressure setpoint. If the method
setpoint is higher than the safety feature for the vial cap,
the vial cap may be releasing the excess pressure.
• Check for leaks.
• If the vial pressure is too high, consider the method
setpoint. Is the vial developing an equilibration pressure
higher than the setpoint while equilibrating?
If the problem remains, the problem may be defective flow
control hardware. Contact Agilent for service.
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Agilent 7697A Troubleshooting