Page 66CWT Compact S4 Touch Installation & Maintenance Manual for CWT 1.0-0Issue 3
Preventive maintenance
Note:
The gel type, lead-acid battery supplied by Flowbird is maintenance free but will
wear out over time.
Verify on a regular base if the contacts are not corroded. If so the battery and the
cable should be replaced as soon as possible.
Mains-powered terminal
The battery needs replacement if the yellow light on the charger on a mains-
powered terminal remains lit even after a longer charging time.
Lead accumulators
Follow normal procedures for the handling of lead accumulators. Instructions are
usually available from the battery supplier.
Follow local regulations for the disposal of replaced batteries. Used batteries
should be returned for recycling if required according to local laws and
regulations.
Note:
The gel type, lead-acid battery supplied by Flowbird is maintenance free.
Verify on a regular base if the contacts are not corroded. If so the battery and the
cable should be replaced as soon as possible.
Battery on CPU board
In some cases, the back-up batteries on the CPU boards are causing malfunctions
(real-time clock instability, memory loss). This is caused by bad contact between
the contact springs of the battery holder and the coin cell battery.
Caution:
It is very important that the battery is of an approved brand (Duracell, Eveready,
Panasonic, Ray-O-Vac, Sanyo, Varta, Toshiba, Seiko or another major battery
manufacturer) and that it is kept clean. Oils from fingers (i.e. fingerprints) may
together with humidity and time cause problems. Such dirt may just as well be
deposited on the underside of the positive contact spring, if a dirty battery has
been mounted in the holder.
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