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Handle the heater and sensor cartridges with care to prevent breakage.
cartridges (particularly the smaller sensor cartridge) are fragile.
21. Carefully slide the two cartridges out of the block.
22. Slide the replacement heater and sensor cartridges into the heated block portion of the detec-
tor weldment.
23. Position the detector weldment in the detector opening.
24. Install the insulation around the detector weldment.
25. Position the insulation plate over the installed insulation and align its mounting holes with those
of the detector weldment.
26. Secure the detector weldment and insulation plate to the instrument with two screws.
27. Install the thermal strap and secure it to the instrument using five screws.
28. Install the base spanner nut on the detector weldment and tighten using an open end wrench.
29. Remove the cap from the detector weldment top opening.
30. Ensure that there is no debris in the detector weldment.
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 handling PCBs (Printed Circuit Boards), always place them in static
`
control envelopes.
31. Install the FID detector PCB by sliding it into its
mounting location on the main PCB (at the right
side of the instrument). Installation of the PCB
will insert the interconnect into the thermal
strap. Use caution to avoid damaging the
spring at the end of the interconnect.
32. Tighten the screws on the clamps which secure
the interconnect to the thermal strap.
33. Secure the collector mount to the thermal strap
using three screws. (Be certain that the interconnect spring contact to the detector PCB is in
contact with the groove on the collector.
34. Tighten the screws which secure the interconnect clamps to the thermal strap.
35. Remove the cap from the base of the detector weldment (inside the column oven).
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SVC 6- 22
The
CLAMPS
INTERCONNECT
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