Sensor Malfunction With Canister Controller - Teledyne ADFM Pro20 Installation And Operation Manual

ADFM® Flow Meter
Section 3 Maintenance and Troubleshooting
Figure 3-4 Box controller sensor interface board
connections
3.4.5 Sensor Malfunction
With Canister
Controller
3-10
Ribbon cable
Coaxial cable
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.
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
cover in place (Figure 3-5).
CAUTION
3
/ " Allen screws holding the electronics
16