
IM-P505-02-US
Issue 1
82
UTM20 Series Ultrasonic Transit-time Flowmeters
12. Replacement Procedures
WARNING
Disconnect power before opening the enclosure
Tools Required
-
A Phillips #2 screwdriver
-
A flat blade screwdriver
-
Tweezers for electronics
-
A workbench that prevents ESD damage to the electronics
WARNING
Contains parts and assemblies susceptible to damage by electrostatic discharge (esd).
Before picking up an esd-sensitive electronic component, discharge yourself by touching
a grounded bare metal surface or approved anti-static mat.
Observe precautions for handling electrostatic-sensitive devices.
12.1 Replacing an AC Module
1. Turn off the power.
2. Open the enclosure.
3. Unplug the DC power wire connector from the terminal block on the main board.
4. Remove (2) M3 pan head phillips screws that secure the cover over the AC power terminal block.
5. Unplug the wire connector from the terminal block on the AC module.
6. Remove the remaining (4) M3 pan head phillips screws and lock washers that secure the AC
module to the enclosure base.
7. Remove the AC module.
Installation is in the reverse order.