ADS Environmental Services IETG FlowHawk QR 775012 A4 - Manual (Page 305)

Maintenance and Troubleshooting 8-21
Note: Some desiccant may be reused following a special
process designed to remove the moisture from the beads.
Please consult the desiccant manufacturer for instructions
on performing this procedure, when applicable.
Replacing the SIM Card and Desiccant in the
GSM Module
Battery-powered FlowHawk monitors handle communications
through a GSM Module (p/n 8000-0052). This module contains a
replaceable desiccant pack and SIM card.
The desiccant pack that requires replacement when a pink color is
visible through the center strip in the pack. The center strip in a
new, fresh pack should be blue in color.
The SIM card typically requires replacement only upon failure,
which is rare, or when a change in wireless carrier occurs.
Replace the SIM card (p/n 507181) and/or desiccant (p/n 507995)
in the GSM module in the following way:
1. Disconnect the GSM module from the monitor. Do not replace
the SIM card or desiccant while the module is attached to the
monitor or damage may occur to the monitor or the GSM
Module!
2. Detach the mounting plate to which the GSM module is
secured from the manhole wall, and remove it from the
manhole.
Note: Locate the GSM module in a dry, non-hazardous
area before opening the cover.