Instruction
INFOCAL 8
6.0 Power supply
INFOCAL 8 can be powered from lithium battery (11 or 16 years life-
time) or 230V AC / 24V AC mains unit supply.
Battery
3.6 V DC lithium battery is fitted in the standard version. The battery is
not to be charged, replaced or short-circuited. Ambient temperatures
below 35°C ensure the typical life of the battery.
Mains unit
24 VAC or 230 VAC power supply units can be changed to or retro-
fitted at any time. The cable is to be fuse at max. 6 A and protected
against manipulation. Connect the cable according the labelling
of the terminal. The power supply unit notifies the meter if mains
voltage is present.
If the power supply fails, the backup battery (CR2032) provides the
power supply for up to 1 year. The LCD readings (on pressing button)
and the date and time are still updated, but none of the measuring
functions work, incl. the flow rate measurement. Communication
still functions over the optional M-Bus, RS485 and RS232 modules or
the optical interface, but reduces the life of the backup battery. The
radio function is switched off in the event of power supply failure.
Caution
Used batteries must be disposed of at suitable waste collection
points.
Risk of explosion if battery is replaced by an incorrect type.
Caution
It is strictly necessary to have protective safety cover installed
at all times.
Under no circumstances connect between the two phases
otherwise the power supply unit will be destroyed.
SONO 1500 CT
Calculator terminal
Vcc (brown)*
9 (+)
Pulse (white)
10
GND (blue)
11 (-)
SONO 3500 CT
Calculator terminal
56
10
57
11 (-)
white
blue
yellow
brown
Wiring flow sensor SONO 1500 CT:
* Connect only if SONO 1500 CT with external supply
Wiring flow meter SONO 3500 CT:
(Typically connected to pulse output A)
Danfoss District Energy
VI.SH.L1.02
DEN-SMT/PL
5
