DeFelsko PosiTector 100 v.4.0 - Manual (Page 37)

100 Series Page 37
Maintenance and Troubleshooting
Battery Management
The Model 100 obtains power from three potential sources:
•
two 1.5v ‘C’ size Alkaline-Manganese Dioxide batteries. If they run low,
the Gage will save all user settings and readings, then power-down.
•
an optional AC adapter (pg.35) supplying 7.5 volts DC power. While in use,
two alkaline batteries should remain in the Gage in case of a power
interruption.
•
a lithium cell which provides approximately 30 minutes of back-up power
to retain all user settings and readings while the two “C” batteries are
removed. The Gage cannot be operated on this cell.
Power normally comes from the two ‘C’ alkaline batteries. As they become low,
a
symbol will appear on the LCD. The Gage can still be used in this
condition but the batteries should be changed at the earliest opportunity. Always
change both batteries at the same time, never just one. Don’t mix old and new
batteries.
If you don’t change the batteries in time, the Gage turns itself off automatically
to save the information in its memory. You can turn the Gage back on once
you’ve replaced the batteries or plugged in the optional power adapter.
The lithium cell will last for more than 10 years of normal to heavy use. It
cannot be replaced by the user. It will retain all user settings and readings while
the Gage is powered-down for a 30 minute period to allow you to replace the old
‘C’ batteries with two new ones. This back-up power retains all user settings and
readings but is not sufficient to operate the Gage. If the 30 minute period is
exceeded, the Gage automatically cuts off power from the lithium cell and will
then experience a power failure. This is the equivalent of a Gage initialization
(pg.31) except that all stored calibration settings and downloaded user
configurations/lists are not lost.
Open the battery door by using your thumb and index finger to turn the door a
quarter turn to the left. Take note of the proper battery orientation when
replacing the batteries (see Gage backplate). If you install the batteries the
wrong way, the batteries may leak and damage the Gage. Leaking batteries may
be hazardous and any damage caused by leaking batteries is not covered by the
warranty.
USE ONLY 1.5v “C” ALKALINE BATTERIES
NOTE: Nickel-cadmium and nickel-metal hydride rechargeable batteries
will work however the low battery symbol may stay on.