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3. Power supply
MULTICAL
®
61 can be powered by means of a built-in lithium battery or 24 VAC or
230 VAC mains supplied via an integral supply module.
The two cables from battery or supply module are mounted in the calculator’s
terminal strip.
The polarity must be correct:
red cable to terminal no. 60 (+)
black cable to terminal no. 61 (-)
3.1 Battery supply
MULTICAL
®
61 is connected to a lithium battery, D-cell. The battery is marked with
installation year, e.g. 2009 as well as production date.
Kamstrup type number: 66-00-200-100.
Optimal battery lifetime is obtained by keeping the battery temperature below 30°C.
The voltage of a lithium battery is almost constant throughout the 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 and must not be charged and must not be short-circuited!
Used batteries must be handed in for approved destruction, f.inst. at Kamstrup A/S.
3.2 Supply modules
The modules are protection class II and are connected via a two-
wire cable (without earth) through the cable bush of the calculator
placed in the right side of the connecting base.
Use connecting cable with an outer diameter of 5-10 mm and
ensure correct dismantling as well as correct cable relief.
Max. permitted fuse: 6A
National regulations for electric installations must be observed.
Black
Red
Black
Red
24 VAC
A transformer must be used, e.g. type
66-99-403 for 24 VAC supply module.
Note! This module cannot be supplied
by 24 VDC.
230 VAC
For direct mains connection.
