User's Manual Part 3

PRU Installation - Classic
Use this method if you are going to use the standard installation technique.
1. Plug in the PRU+: Plug one end of the AC Adapter into a 110 Volt AC Outlet and the other
end into the PRU+. The PRU+ will turn on, displaying the title screen. It will then display the
date and time screen. The power and charge LED will be lit. The charge LED will go out when
the unit is fully charged.
2. Clear Stored Events: Press and hold the PRU+ button on the LOCK until the PRU+
prompts “Please Wait....”. When the display prompts “B=Function Mode” press B button once.
The display will prompt “B=Clear Events”. Press B to clear all stored events. The display will
read “Events cleared”.
3. Test for RF Signal Strength: Press A” button twice. When the display prompts “B=Test
Mode”, press the “B” button to enter Test Mode. Look at the top line marked “RFStr”. The
display will have a value on the top line that indicates the
signal strength of the last transmission of the PID
displayed. The
value is a
representation
of the distance
the PID is
located away
from the PRU+.
To reduce the
range the PRU+
will monitor the
participant set the RSSI setting in Extended Special Function Mode to this value minus 15%
(approx 30 points). Note: setting this value higher will reduce the size of the area of
confinement..
PID Installation
5. Install the Battery: Remove the PID , baseplate, one strap, one locking bar, one locking pin
and the battery from the case. Simply place the battery into the PID battery well so that the
alignment mark on the battery lines up with the alignment mark on the PID. Rotate the battery
counterclockwise until the tabs on the battery slide under the two lock down posts. (See Figure
3 : installing the battery in the PID).
Figure 3: Installing the battery in the PID
6. Size the Strap: Attach the wide end of the strap to the PID baseplate. With the baseplate on
the outside of the leg, wrap the strap around the participants leg, just above the ankle. Size the

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