Power Supply; Battery Supply; Mains Modules - Kamstrup MULTICAL 41 Installation And User Manual

4. Power supply

MULTICAL® 41 can be power supplied by a built-in lithium battery, a
24 VAC internal mains module or an internal 230 VAC mains module.
The two wires from the battery or mains module are to be mounted in
terminals 60 and 61 of the calculator.
The polarity must be correct; connect the red wire to terminal no.
60 (+) and the black wire to terminal no. 61 (-).

4.1 Battery supply

Connect MULTICAL® 41 to a lithium battery, D-cell. The battery is
marked with installation year, e.g. 2008, and production date.
Obtain optimal battery life by keeping the battery temperature below
30°C.
The voltage of a lithium battery is almost constant throughout the
entire lifetime of the battery (approx. 3.65 V). Therefore, it is not
possible to determine the remaining capacity by measuring the
voltage.
The battery cannot be and must neither be charged nor hortcircuited.
Used batteries must be handed in for approved destruction e.g. at
Kamstrup A/S.

4.2 Mains modules

The modules are in protection class II and are connected via a
two-wire cable (without earth) through the cable bush of the
calculator placed at the top left corner of the connection unit.
Use connection cable with an outside diameter of 5–10 mm and
secure correct dismantling as well as correct mounting of the cable
relief.
Max. permitted fuse: 6 A
National installation regulations must be obeyed.
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