June 28, 2016, 715003956 Rev. C
Page 84
6. Route the open end of the exhaust tubing to a suitable exhaust vent.
7. Check the oil level in the pump (see “Maintaining the rotary backing pump’s oil” on page 48.
8. Make the electrical connections to the rotary backing pump (see page 84).
D.3.1 Making the electrical connections to the rotary backing pump
Figure D–4: Backing pump electrical connections
Notice: The instrument requires two separate exhaust systems: one for nitrogen, the
other for the backing pump. Vent them to atmosphere through separate exhaust
lines. Oil mist can severely damage the instrument if the nitrogen exhaust line
connects with the backing pump exhaust line. Your warranty does not cover damage
caused by routing exhaust lines incorrectly.
Notice: To ensure correct operation of the backing pump, do not operate the pump
with the oil level at less than 30% of the MAX level.
Pump switching box
Power cable
To power source
Backing pump
connector
Pump control cable
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