SVC 3-16
Remove/Replace EPC/MPC Pressure Control PCB
` HAZARDOUS VOLTAGES ARE PRESENT IN THE INSTRUMENT WHEN THE
POWER CORD IS CONNECTED. AVOID A POTENTIALLY DANGEROUS SHOCK
HAZARD BY DISCONNECTING THE POWER CORD BEFORE WORKING ON THE
INSTRUMENT.
` FLAME IONIZATION (FID), NITROGEN PHOSPHOROUS (NPD), AND FLAME
PHOTOMETRIC (FPD) DETECTORS USE HYDROGEN GAS AS FUEL. BE SURE
ALL 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. Turn off all gas supplies.
4. Remove the electronics carrier top cover.
5. Remove the right side panel by
removing four screws: two each
along its top and bottom edges.
` The following steps require protection against ESD (Electro-Static Discharge).
Use a grounded wrist strap (part no. 9300-0969 - large, or 9300-0970 - small)
connected to a suitable ground. Failure to heed this caution may result in
damage to the instrument.
` When storing or in between handling of PCBs (Printed Circuit Boards), always
place them in static control envelopes or enclosures.
OFF ON
RED O VISIBLE
ELECTRONICS
CARRIER TOP
COVER
SCREWS
SCREWS
RIGHT SIDE PANEL
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