Ametek Thermox WDG-1200 Insitu, Руководство пользователя

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6-4 | Thermox WDG-1200/1210 Insitu Probes
cell replacement
removing the cell
1. Remove the inner probe assembly as described in the previous section,
Inner
Probe Assembly Removal
.
2. Mark the position of the U-bolt relative to the heater by drawing a line on
either side of the U-bolt on the top of the heater. This will help you mark the
correct heater position to show how far the heater should be placed into the
inner probe assembly during reassembly.
Place a mark on the left hex nut of the cell assembly and also on the inner
probe assembly (end of probe assembly where wrench flats are) to match the
orientation of the white cell lead wire.
For example, if white cell lead wire is positioned at 3 o’clock, place a mark
at 3 o’clock on the left hex nut of the cell assembly and inner probe assembly
(see Figure 6-2 for location of left hex nut).
3. Loosen the U-bolts around the heater (but don’t remove) using a 3/8” nut
driver, then remove the 10-32 screw on the sheet metal plate and accompany-
ing lock washer using a flat blade screwdriver (see Figure 6-3).
Figure 6-2.
cell assembly.
It may be easier for two people to complete the following steps if the
probe is longer than 18”.
4. To remove the cell assembly, position a 1” open end wrench on the wrench
flats of the inner probe assembly (see Figure 6-2). Place another 1” open end
wrench on the left hex nut of the cell assembly, and break the seal by un-
screwing the left hex nut.
NOTE
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