19
5.11.
Battery charge indicator
Batteries almost discharged
When the batteries are approximately 75% used, the battery
symbol will flash a few times as soon as the instrument is
switched on (if at least one of the batteries still has some
charge). Although the
instrument will continue to measure reliably, you should obtain
replacement batteries.
Batteries discharged – replacements required
When the batteries are discharged, the battery symbol will
appear, unblinking, as soon as the instrument is switched on.
You cannot take any further measurements and must replace the
batteries.
1. Open the battery compartment on the bottom of the instrument.
2. Replace the batteries – ensure they are correctly connected, as shown on the
symbols in the compartment.
3. The memory retains all values although date and time (and possibly also set alarm
times) must be reset – the year number will flash automatically after the batteries
are replaced.
4. To set date and time, follow the procedure described in Section 4.3.
Note:
Use four new, Long-Life 1.5 V AA batteries. Do not use batteries beyond their expira-
tion date. If the monitor is not going to be used for a prolonged period, the batteries
should be removed.
Using rechargeable batteries
You can also operate this instrument using rechargeable batteries.
• Please use only type "NiMH" reusable batteries.
• If the battery symbol ( ) appears, the batteries must be removed and
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