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ADFM® Flow Meter
Section 3 Maintenance and Troubleshooting
3-10
Figure 3-4 Box controller sensor interface board
connections
3.4.5 Sensor Malfunction
With Canister
Controller
Check the pins on the sensor cable connection. There should be a
total of 11 pins, and the pins should be free of moisture and cor-
rosion.
Note
It is very important to keep all unused connectors capped.
Moisture penetration and corrosion can cause permanent
damage to the ADFM and/or the sensor.
CAUTION
The canister controller contains electronics similar to those in
the box; however, opening the canister in the field will void the
NEMA/IP rating. To preserve the NEMA/IP rating, send the
canister controller to the factory for service and inspection of
the desiccant.
If you choose to void the NEMA/IP rating, only open the case in a
clean, dry environment. You can access the circuit boards by per-
forming the following steps:
1. Remove the four
3
/
16
" Allen screws holding the electronics
cover in place (Figure 3-5).
Ribbon cable
Coaxial cable
Содержание ADFM Hot Tap
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