Connection Of Power Supply; Battery Supply; Mains Supply Modules - Kamstrup ULTRAFLOW 54 Installation Manual

2.2 Connection of power supply

If ULTRAFLOW® 54 is mounted with a galvanically coupled output module and connected to
MULTICAL®, the low sensor is supplied by the calculator. Therefore, the low sensor must not be
itted with a supply of its own.
ULTRAFLOW® 54 may be connected to other calculators via the galvanically separated output
module only, and the low sensor must, therefore, be itted with a supply module or battery.
Supply module and battery are connected to the two-pole connector of the output module.
2.2.1

Battery supply

ULTRAFLOW® 54 is mounted with a D-cell lithium battery with connector. The battery plug is
connected to the output module.
Optimal battery lifetime is obtained by keeping the battery temperature below 30 °C, e.g. by wall
mounting the electronics box.
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.
The battery cannot and must not be charged and must not be short-circuited.
The battery supply may only be replaced by a corresponding lithium battery with connector from
Kamstrup A/S. Used batteries must be handed in for approved destruction, f.inst. at Kamstrup A/S.
(See Kamstrup document 5510-408, "Lithium batteries - Handling and disposal").
2.2.2

Mains supply modules

The mains supply modules are protection class II and are connected to the output module via
a two-pole connector. The modules are powered via a two-wire supply cable (without earth
connection) through the cable connector of the electronics box. Use supply cable with an outer
diameter of 4.5-10 mm and ensure correct dismantling as well as correct tightening of cable
connection (see paragraph 2.2.4 "Cable connections", page 12).
Max. permitted fuse: 6 A.
230 VAC
This PCB module is galvanically separated from
the mains voltage and is suitable for direct
230 V mains installation. The module includes
a double-chamber safety transformer, which
fulils double-isolation requirements when the
cover is mounted on the electronics box. Power
consumption is less than 1 VA or 1 W.
National regulations for electric installations must be observed. The 230 VAC module can be
connected/disconnected by the district heating station's personnel, whereas the ixed 230 V
installation in the main electrical panel must be carried out by an authorized electrician.
Kamstrup A/S • 5512887_B2_GB_09.2015
230 VAC supply
27
28
65-000-000-7000
Diagram 5
ULTRAFLOW® 54 · DN150-300
230 VAC
11