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Kamstrup A/S • 55121739_B1_GB_02.2020
MULTICAL® 403
2 Mounting of temperature sensors
The temperature sensors used for measuring inlet and outlet temperatures respectively,
constitute a matched sensor pair, which must never be separated. According to EN 1434/OIML
R75, the cable length must not be changed. Should replacement be necessary, both sensors must
be replaced.
The sensor marked with a red sign is to be installed in the inlet pipe. The other sensor, marked with
a blue sign, is to be installed in the outlet pipe. For mounting in the calculator, see the paragraph
”Electrical connection”.
Note:
The sensor cables must neither be exposed to jerking nor pulling. Please be aware of this
when binding the cables, and be careful not to pull the binders unnecessarily tight as this
may damage the cables. Please also note that temperature sensors must be mounted from
below in cooling and heat/cooling installations.
2.1 Short direct sensor (DS)
The short, direct sensors up to DN25 can be mounted in special ball valves with built-in M 10
socket for the short direct sensor. They can also be mounted in installations with standard
tee-pieces. Kamstrup A/S can supply R½ and R¾ brass nipples that fit the short direct sensors.
The short direct sensor can also be mounted directly in selected flow sensors from Kamstrup A/S.
Fasten the sensors’ brass unions lightly (approx. 4 Nm) using a 12 mm face wrench, and seal the
sensors with seal and locking wire.
