Manual

Maintenance and Troubleshooting 8-11
12-volt battery packs (left – potted; right – unpotted)
Replace the internal battery in the FlowHawk monitor in the
following way:
1. Collect the data from the monitor (remotely or on-site). This
will reduce the risk of data loss once the battery is
disconnected.
2. (applicable only when using a GSM Module) Remove the
monitor from the manhole, and disconnect the communication
cable (running from the GSM module) from the COMM port
on the monitor.
3. Move the monitor from the hazardous area (i.e., at least 6.1
meters (20 ft) away from the manhole).
4. Remove the 4 bolts securing the top to the canister using a 13-
mm nut driver.
5. Wipe away any debris or moisture that could enter the chassis
once the unit is opened.
6. Remove the top (with the attached power regulator dome) by
pulling it straight up from the canister. The battery rests at the
bottom of the canister, and an 457-mm (18-in) long cable
extends from the battery pack to the top.