Forepump Related - PerkinElmer Clarus SQ 8 MS Series Hardware Manual

Clarus SQ 8 MS Hardware Guide

Forepump Related

Problem Problem
Pump does not start.
Pump has failed to reach
vacuum.
148
Probable Probable Cause Cause
Forepump switched off. Switch on the pump.
Blown fuse. Call a PerkinElmer service
engineer.
Electrical supply voltage Determine the correct voltages,
does not match that of the and correct. Check the voltage
pump motor. switch at the pump.
The outlet filter is Find and unblock.
blocked.
Pressure measurement or A contaminated Pirani gauge can
gauge head gives an indicate a pressure several times
incorrect indication of higher than the actual. Replace if
pressure. necessary.
Pump contains the wrong Drain and refill with the correct
type of oil. oil - Edwards Ultragrade 19 Oil.
Consult your Edwards Pump
instruction manual.
Mode selector and/or gas Check and set to correct position.
ballast control are
incorrectly set.
High oil level. Drain to the high oil level mark.
Low oil level. Check and fill to correct level.
Solution Solution