Cable Length; Connection Of Power Supply; Battery Supply; Mains Supply Modules - Kamstrup ULTRAFLOW 54 DN15-125 Technical Description

7.7.2.1

Cable length

The maximum allowable cable length between Pulse Transmitter/Pulse Divider and MULTICAL® depends on the output
module used in Pulse Transmitter/Pulse Divider as well as how the MULTICAL® calculator is connected. Refer to the
Technical description of the calculator.
Using long signal cables, careful consideration is required in connection with installation. With respect to EMC, there
must be a distance of at least 25 cm between signal cables and all other cables.
7.7.2.2

Connection of power supply

If ULTRAFLOW® is connected via Pulse Transmitter or Pulse Divider, ULTRAFLOW® is supplied by the supply
module/battery mounted in Pulse Transmitter/Pulse Divider.
7.7.2.2.1

Battery supply

Pulse Transmitter/Pulse Divider is fitted with a D-cell lithium battery with connector. The battery is connected to the
output module.
Optimal battery lifetime is obtained by keeping the battery temperature below 30 °C, e.g. by wall-mounting of Pulse
Transmitter/Pulse Divider.
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 must be replaced by a corresponding lithium battery with connector from Kamstrup A/S. Used batteries must
be handed in for approved destruction, e.g. to Kamstrup A/S (see Kamstrup document 5510-408, "Lithium batteries -
Handling and disposal").
7.7.2.2.2

Mains supply modules

The mains supply modules are protection class II and are connected to the interface module via a short two-wire cable
with connector. The modules are powered via a two-wire mains supply cable (without earth connection) through the
cable connector of Pulse Transmitter/Pulse Divider. Use supply cable with an outer diameter of maximum 10 mm and
ensure correct stripping of insulation as well as correct tightening of cable connection. (See paragraph 7.7.2.2.4)
Max permitted fuse: 6 A.
Kamstrup A/S · Technical description · 5512-2464_A1_GB_08.2019
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