ETS-Lindgren HI-3510 RF Radiation Badge Broadband Electromagnetic Radiation Detector (Archived) - Manual (Page 22)

HI n 3510 Manual Page — 17
SECTION V
MAINTENANCE
5-1 GENERAL
The Model HI-3510 been designed for rugged field use.
Normal maintenance for this unit consists only of battery
replacement and calibration.
5-2 BATTERY REPLACEMENT
The unit comes furnished with a D12450B lithium cell.
Normal operating life is 1000 hours. With the alarm in its
latched mode, the battery life is about 80 hours. The
shelf life of the battery is about ten years when stored in
a cool environment.
The unit has a built in battery monitoring circuit that
generates a single beep and flash at one minute intervals
under low battery conditions. To replace the battery,
proceed as follows:
1. Turn the unit off. THIS IS IMPORTANT.
2. Slide open and remove the battery cover.
3. Note the position of the battery and the battery
removal strap. To remove the battery, pull the
strap straight out until the battery can be
removed.
4. Insert the new battery, making sure the new
battery and the battery removal strap are in the
positions noted in step 3 above.
5. Turn the unit on. The instrument should now be
operational and the one minute beep and flash
Archived 4/2/10