Remove/Replace Manual Pressure Control (MPC) Components
HAZARDOUS VOLTAGES ARE PRESENT IN
`
THE INSTRUMENT WHEN THE POWER CORD
IS CONNECTED.
DANGEROUS
DISCONNECTING
BEFORE WORKING ON THE INSTRUMENT.
FLAME IONIZATION (FID) AND NITROGEN
`
PHOSPHOROUS (NPD) DETECTORS USE
HYDROGEN GAS AS FUEL.
HYDROGEN GAS IS TURNED OFF AT ITS
SOURCE BEFORE REPLACING ANY FLOW
COMPONENTS.
1. Set the main power line switch to the off position.
2. Disconnect the power cable from its receptacle.
3. Allow time for the oven and heated zones to cool.
4. When the heated zones are cool, turn off all gas
supplies.
5. Remove the two screws securing the left
side panel along its bottom edge.
6. Slide the left side panel towards the rear
of the instrument and lift.
7. Disconnect plumbing fittings as necessary to
remove the flow module from the instrument.
(The hydrogen lines are painted red at their
ends. Remember which line is installed at each
fitting; draw a diagram if necessary.)
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AVOID A POTENTIALLY
SHOCK
HAZARD
THE
POWER
CORD
BE SURE ALL
SVC 3- 14
BY
RED O VISIBLE
OFF
ON