Maintenance And Care; General Notes; Replacing The Battery - Wohler HBF 410 Bedienungsanleitung

7. Maintenance and care

7. Maintenance and care
7.1

General notes

• Store the instrument in a dry location.
• Clean the instrument when necessary using a soft cloth only.
• Do not allow water to ingress into the openings of the instrument.
• Remove batteries if the instrument is not going to be used for a longer
period of time.
7.2 Exchanging the needles
Broken or damaged needles can simply be exchanged by the needle-kit deli-
vered with the device. (see fig. 3.1, part 9). Loosen the damaged needles with
an appropriate tool (gripper, screw wrench). Replace the damaged needles by
the needle-kit and fix the new needles with the tool. Attention: The tips of the
needles are very sharp. Therefore the needle-kit should always be protected
by the protection sponge.
7.2

Replacing the battery

If the battery voltage gets too low (below approx. 4.0 V), the battery symbol
is displayed (Fig. 3.5) and the display contrast becomes weaker. The battery
should be replaced.
To do so, open the battery compartment at the rear of the instrument, remo-
ve the old battery and replace it with a new one of the right type. You must
observe the correct polarity.
Do not dispose of batteries in domestic refuse; take them to the proper dis-
posal point.
e-Mail: mgkg@woehler.com
Wöhler HBF 410
http://mgkg.woehler.com
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