SVC 6-26
21. Slide the replacement heater and temperature sensor cartridges into the heated block portion
of the detector weldment.
22. Position the detector weldment in the detector opening.
23. Install the insulation around the detector weldment.
24. Position the insulation plate over the installed insulation and align its mounting holes with those
of the detector weldment.
25. Secure the detector weldment and insulation plate to the instrument with two screws.
26. Install the thermal strap and secure it to the
instrument using five screws.
27. Remove the cap from the detector weldment
top opening.
28. Ensure that there is no debris in the detector
weldment.
29. Install the base spanner nut on the detector
weldment and tighten using a spanner wrench
(part no.19301-00150).
` 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.
30. Install the NPD 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.
31. Tighten the screws on the clamps which secure
the interconnect to the thermal strap.
SENSOR
HEATER
HEATED
BLOCK
BASE SPANNER NUT
INSULATION
PLATE
THERMAL STRAP
Clamps
Interconnect
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