41
Main
te
nance
Changing the batteries
Tip:
Only use 1.5 V AAA size alkaline
manganese batteries.
1. ESM-30 only:
Switch on the ESM-30 “RadMan XT” and
monitor the self test (see page 19).
If none of the LEDs lights up during the
test, you should set the date and time
again after you have replaced the
batteries.
2. Switch off the ESM “RadMan”.
3. Replace the old batteries with fresh ones.
Make sure that they are inserted with
correct polarity (see page 42).
4. Switch the ESM “RadMan” on after
replacing the batteries and monitor the self
test routine.
5. ESM-30 only:
If none of the LEDs lit up diring the test
(item 1 above) it is a good idea to set the
date and time again now using the
ESM-TS Interface Set, which is available
as an option.
Changing the batteries
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