Preparation
A2-10 ENVI-MAG Manual
Battery installation/exchange
The ENVI-MAG is shipped without the battery installed. This is the proper
procedure, while shipping and storing the instrument, to prevent deep discharge
of the battery. Deep discharge can possibly cause permanent damage to the
battery and will always shorten the battery life. This situation will occur because
a small current is being drawn even if the instrument is turned off.
The following steps outline the battery installation:
1. Turn the instrument face down on a clean and even surface.
2. Unscrew both knurled screws on either side of the battery cover and lift the
cover off.
3. Place the battery into the recess in the rear panel of the instrument.
4. Connect it carefully to the MAIN BATTERY connector. It is not important
which side of the plug is up, as long as the connector pins are properly
aligned.
5. Replace the cover and tighten both knurled screws.
6. If this is the first time installation proceed with battery charging.
The small size and low cost of the battery makes it convenient to carry an
additional battery along as a spare.
Warning: An internal battery keeps the memory and the internal clock alive for
about
10 minutes. It is strongly advised that the switching to the spare
battery be done
quickly, TO PREVENT THE LOSS OF YOUR DATA!
You need not worry about a low battery causing data loss, since the memory
power requirements are much less than those needed to make a valid reading
of the magnetic field.
Figure A-7 ENVI-MAG battery pack
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