Page 11CWT Compact S4 Touch Installation & Maintenance Manual for CWT 1.0-0Issue 3
Safety
Follow all applicable local worker safety regulations.
3.2 Batteries
3.2.1
Back-Up battery holder on CPU board
The CPU board contains a lithium battery (button cell CR2032, 3 V, 210 mAh, 20
mm diameter) to keep the terminal's memory alive on power down.
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).
The battery must be replaced at least every 5 years. See Batteries for a
description how best to replace the battery.
Figure 1, Backup Battery case
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