Ametek ASR900, Руководство по установке и обслуживанию

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4-24 | Heated Acid Gas Sample Probe (Large Diameter)
iii. If the Thermal Insulation Tube (P/N 300-8733) threads are dam-
aged, replace it now. Apply a high-temperature grease/lubri-
cant (
approved for use with threaded flamepath joints ) to the
threads that will be installed in the Junction Box and thread it
into the Junction Box.
Do not thread the other end into the Heater Block at this time.
iv. Route the other end of the Heater Cartridge wire, and the oth-
er wires and RTD cable, through the hole in the Heater Block,
through the Thermal Insulation Tube, and into the Junction
Box.
v. If required, carefully clean the threads in the Heater Block.
Apply a high-temperature grease/lubricant ( approved for use
with threaded flamepath joints ) to the threads on the Thermal
Insulation Tube that will be installed in the Heater Block and
carefully thread it into the Heater Block.
If you were not able to break the connection:
i. Orient the new Heater Cartridge as shown in Figure 4-4 and
insert it in the opening opposite the Thermal Insulation Tube
on the Junction Box.
While holding the other wires and RTD cable that are routed
from the Heater Cartridge and into the Junction Box (to ensure
they are not pushed back and damaged), carefully push the
Heater Cartridge into the Thermal Insulation Tube.
Using a small blunt instrument, carefully push the Heater
Cartridge into the Heater Block until the wires are visible in-
side the Heater Block.
ii. Separate the heater leads so that the shorter wire goes up
through the Heater Block to the Over-Temperature Switch.
Solder the wire to the terminal it was removed from on the
Over-Temperature Switch.
If necessary, adjust the Heater Cartridge so it is properly seated
in the Heater Block.

NOTE