14
Kamstrup A/S • 55121739_B1_GB_02.2020
MULTICAL® 403
6 Power supply
6.1 Battery supply
MULTICAL® 403 is available with battery supply using either two A-cell batteries or one D-cell
battery. Optimal battery lifetime is obtained by keeping the battery temperature below
30 °C, e.g. by wall mounting. 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 of the battery by measuring the voltage. ”INFO” code ”2xxxxxxx” however, indicates low
battery level.
The battery cannot and must not be charged and must not be short-circuited. Used batteries
must be handed in for approved destruction, e.g. at Kamstrup A/S. Further details appear from
document on handling and disposal of lithium batteries (5510-408).
6.2 Mains supply
MULTICAL® 403 is available with supply
modules for either 24 VAC or 230 VAC.
The modules are protection class II and are
connected via two-wire cable (without earth)
through the big cable bush, the second one
from the right, at the bottom of the connection
base. Use connecting cable with an outer
diameter of 5-10 mm and ensure correct cable
stripping as well as correct mounting of cable
relief.
If connecting to 230 VAC, it is important to
make sure that the whole installation complies
with current regulations. The supply cable must
not be protected by a fuse larger than the one
permitted for the given cable size.
In connection with other types of installations
or requirements for larger fuses than the
ones listed above, it is necessary to consult a
certified electrician for an individual evaluation
of how the type of installation in question
should be carried out.
Black
Red
61
60
97
98
24 VAC supply
24 VAC
3.
6 V
24 VAC
E.g. transformer 230/24 V, type 66-99-403,
can be used.
Note:
MULTICAL® 403 cannot be powered
by 24 VDC.
Black
Red
61
60
27
28
230 VAC supply
230 VAC
3.
6 V
230 VAC
This module is used when the meter is supplied
directly by the mains.
Note:
External supply must only be connected
to the supply module.
