![Oxford Instruments OpAL System Manual Download Page 190](http://html.mh-extra.com/html/oxford-instruments/opal/opal_system-manual_1664943190.webp)
lé^i
lñÑçêÇ=fåëíêìãÉåíë=mä~ëã~=qÉÅÜåçäçÖó==
System Manual
WARNING
BEFORE PROCEEDING WITH ANY MAINTENANCE WORK, READ SECTION 1 - HEALTH AND SAFETY
.
Symptom
Possible Faults and Checks
Pumps not
operating
1) Pump not turned on: use the Pump control page and click on the relevant
EVACUATE
button to start it.
2) Pump cable not connected. Plug 10 (pump 1) and Plug 9 (pump 2) located
at the rear of the machine.
WARNING
THE CIRCUIT BREAKERS CB12 AND CB 13, AND
CONTACTORS K2 AND K3 ARE LOCATED WITHIN THE
POWER DISTRIBUTION UNIT. DO NOT REMOVE THE
COVER OF THIS UNIT UNLESS YOU ARE FULLY
TRAINED AND AWARE OF THE RISKS INVOLVED.
3) Circuit breaker CB12 (pump 1) and CB13 (pump 2) de-energised.
4)
Contactor K2 (pump 1) and K3 (pump 2) de-energised. Refer to the 80 Plus
Power Distribution circuit diagram.
Excessive time to
achieve base
pressure of
<10 mTorr.
1)
Rotary pumps not operating. (See preceding sub-section).
2)
Capacitance Manometer (CM) gauge not operating correctly. Refer to the
CM gauge manual.
3)
Excessive water vapour in the process chamber. Continue pumping with gas
ballast open on the rotary pump (where possible) or with a flow of inert
gas.
Troubleshooting
Issue 1: August 07
Page 7-4 of 12
Printed: 25-Oct-07, 11:47
Summary of Contents for OpAL
Page 14: ......