User's Manual

Revised: 9/12/2017 5520-16-0281 Rev: C
Proprietary and Confidential Page 6 of 15
4.0 OPERATING INSTRUCTIONS
4.1 POWER
The SENTINEL™ Tracking Tag requires three AA alkaline batteries. Use of other battery chemistries is
not allowed. For applications requiring MSHA Intrinsic Safety approval, only the cells listed in Section
2.1 may be used, and batteries must be replaced in fresh air. To turn the Tracking Tag on, insert three
AA batteries. Device will automatically turn on. There is no on/off button.
4.1.1 Replacing Batteries of FAP5015-025 Personnel Tag
To insert or replace batteries:
 Remove cover by unscrewing the screws at the top of the device with a Phillips screwdriver.
 Slide out interior tray and insert the batteries. Note proper polarity (marked on battery holder).
 Replace cover and tighten screws to ensure dust-tight seal.
 Make sure the enclosure gasket is undamaged and in place.
 Ensure the screws have a small rubber gasket that is pushed back against the head of the screw.
 Observe LED status light to verify power is ON.
Figure 1 - Enclosure is held together by two screws