13Kamstrup A/S • 5512603_C1_GB_03.2016
MULTICAL® 801
5 Power supply
MULTICAL® 801 is power supplied by 24 VAC or 230 VAC.
5.1 Backup battery
MULTICAL® 801 includes bckup bttery, which ensures tht ll relevnt
mesurements continue during power filure.
The bttery ought to be replced fter 10 yers’ norml opertion, or fter 1
yer without mins connection.
The type number of the bckup bttery is 66-99-619.
The voltge of lithium bttery is lmost constnt throughout the whole
lifetime of the bttery (pprox. 3.65 V). Therefore, it is not possible to
determine the remining cpcity by mesuring the voltge.
The bttery cnnot nd must not be chrged nd must not be short-
circuited. Used btteries must be hnded in for pproved destruction, e.g. t
Kmstrup.
6 Operational check
Crry out n opertionl check when the energy meter hs been fully
mounted. Open thermo-regultors nd cocks in order to estblish wter
flow through the heting system. Activte the upper push button on the
MULTICAL® 801 nd check tht the disply vlues for temperture nd wter
flow re relible.