f) Thread the thermistor through the retainer nut.
g) Screw the retainer nut back into the TCD block.
Ensure a tight fit (quarter turn after finger tight); otherwise a potential leak
path might open.
h) Reconnect the thermistor leads to the termination block, taking care to
reconnect the thermistor leads to the corresponding terminal block screws.
Note
The thermistors are a matched pair (2-5-1611-003) and must be replaced as such.
Repeat
for each thermistor in a pair.
Note
Tighten the block screws with a torque wrench to 20 in.-oz.
7. Reconnect the gas tubings.
Make sure tubing is properly seated and reattach the TCD housing with the four
screws.
8. Replace the thermal cover and explosion-proof dome.
9. Apply power to the GC.
Remove the flame ionization detector (FID)
The FID has no replaceable parts. If it has damage (such as as broken resistance
temperature device [RTD] or igniter coil) you will need to remove and replace the FID.
WARNING
Explosion
Failure to de-energize the analyzer may cause an explosion and severely injure personnel.
Before opening the analyzer, disconnect all electrical power and ensure that the area is
free of explosive gases.
Keep cover tight while circuits are live.
Use cables or wires suitable for the marked "T" ratings.
Cover joints must be cleaned before replacing the cover.
Conduit runs to the enclosure must have sealing fitting adjacent to enclosure.
Operation and maintenance
Reference Manual
June 2022
2-3-9000-744
124
Emerson.com/Rosemount
Summary of Contents for Rosemount 700XA
Page 1: ...Reference Manual 2 3 9000 744 Rev L June 2022 Rosemount 700XA Gas Chromatograph ...
Page 6: ...TxD TD or Sout Transmit data or signal out 6 ...
Page 30: ...Overview Reference Manual June 2022 2 3 9000 744 30 Emerson com Rosemount ...
Page 100: ...Installation and start up Reference Manual June 2022 2 3 9000 744 100 Emerson com Rosemount ...
Page 182: ...Operation and maintenance Reference Manual June 2022 2 3 9000 744 182 Emerson com Rosemount ...
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