TECHNICAL DESCRIPTION
MULTICAL
®
61
5512-622 GB/01.2011/Rev. E1
40
10
Power Supply
MULTICAL
®
61
must be internally powered by 3.6 VDC (
±
5%) on terminals 60(+) and 61(-). This is obtained using
one of the following supply modules:
MULTICAL
®
61 Type 67-
Z
0
Supply
Battery D-cell
2
230 VAC supply module with transformer
7
24 VAC supply module with transformer
8
The three above-mentioned supply modules are included in the comprehensive type test, to which MULTICAL
®
61
has been subjected. Within the framework of the type approval, the CE-declaration and the manufacturer’s
guarantee no other types of power supplies than the ones listed above can be used.
ULTRAFLOW
®
24 will be powered by the same supply.
10.1
Built-in D-cell lithium battery
When supplied by a battery MULTICAL
®
61 uses a lithium D-cell (Kamstrup type 66-00-200-100). The battery is
mounted in the right side of the connection base with the red wire connected to terminal 60(+) and the black wire
to terminal 61(-). The battery is easily replaced using a screwdriver.
The battery lifetime depends on the temperature, to which the battery is exposed, as well as the selected
application for the meter.
Application (temperature)
Battery liftetime
MULTICAL
®
61 mounted on a wall
(battery temperature
<
30
°
C)
12 years
MULTICAL
®
61 mounted on flow sensor
(battery temperature
<
45
°
C)
10 years
The above-mentioned battery lifetimes apply to standard installations. The battery lifetime is reduced by:
-
Warm ambient temperature
-
Connection of data modules
-
Frequent data communication
Please contact Kamstrup A/S for further information.
