Yokogawa 202 Field Mounting Rate Totalizer - Manual (Page 25)

Versions 21
6.1 BATTERY POWERED VERSION
The battery powered version of the Model 202D is designed for operation in the
field without external power sources. Lithium batteries provide sufficient power
to operate the instruments for up to 5 years and the operator is warned of a low
power condition by a message on the LCD display.
New batteries can be purchased via Contrec or our distributors and replaced in the
field without compromising the IS approvals. There are two battery packs in each
instrument and care must be taken to replace only one pack at a time so that there
is always power connected to the memory. Failure to do this may result in loss of
totals.