User's Guide

 27
Initialising a TU
SEARCHING FOR
A PID IN
SURVEY MODE
1. Phone the monitoring centre and give them the TU, Dock
and PID serial numbers.
2. Place the Dock in a suitable location and plug it into the
mains power supply. (See
MU/TU-Dock Positioning Tips
on page 25).
3. Place the TU into the Dock. (Figure 1)
The TU automatically starts to initialise and register with
the GSM mobile network, and starts to search for a PID in
survey mode. (Figure 2)
If the TU displays “NO GSM SIGNAL”, leave the
TU docked and move the docking station to a different
location.
If the TU displays “REMOVE UNIT AND GET GPS”,
lift the TU from the dock and take it outside. (See
Getting
a GPS Location Fix
on page 28).
4. While the TU is initialising, measure the subject’s ankle and
select the correct size of strap. (See
Preparing Straps for
Installation
on page 29).
5. Next, t the PID to the Subject’s ankle,
(See
Fitting a PID to a Subject on page 30).
Figure 1—Place TU in Dock
Figure 2—Searching for PID