User's Manual Part 4

STRATEGIC Technologies Inc. PRU / PID Preventive Maintenance
Electrical Checks
1. Plug the unit into the AC Power and make sure that the AC light comes on. If the unit needs
charging the Charge Light should come on. Leave the unit plugged into AC until the charge
light goes out. This should also be done to all PRU+’s that are stored for longer than one
month. The battery inside the PRU+ can be damaged by leaving it in a discharged state.
2. The front display should display the PRU+ Serial Number / PID Code. The Display will then
show the current date and time. If any of these numbers are incorrect, Change them to the
right values by using Extended Special Function Mode (As Described on Page 38).
3. Using Special Function Mode on a PRU+ enter Test Mode and check the AC and Telephone
Disconnect by unplugging the cables from their respective outlets (For more Information
concerning Test Mode consult Page 33).
Figure 8 : Test Mode Display
4. The stored events should be erased each time the unit is changed from one participant to
another. Be careful because once the events have been erased they can never be retrieved.
To erase the events, enter Special Function Mode and step through the functions until B=Clear
Events appears. Push button B once. The display will then prompt A=** Clear ** Press A to
erase the events. Once the events have been erased "Events Cleared" will be displayed.
5. If the unit was used as a passive unit or previously had it's phone number changed, check the
phone number. Use Extended Special Function Mode to change the phone number back to
the original number. (For More Information on accessing Extended Special Function Mode see
Page 38)