NZR – Ihr Partner für Energiemessung
Technische Änderung
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Technical details subjec
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21
Temperature sensor mounting
The temperatures indicated on the identification plate of the temperature sensors are to
be observed. The temperature sensors with two-wire technology are matched. Only mat-
ched pairs are supplied and they may not be separated, extended or shortened, since this
affects the measuring accuracy. With temperature sensors pairs with a cable length lon-
ger than 3 m, we exclusively recommend the use of shielded temperature sensor pairs.
In this case the shields must be installed correctly. Temperature sensors with protection
pockets must be inserted up to the halt - afterwards must be fixed. With unequal cable
lengths or longer than 6 m we recommend exclusively the use of four-wire technology.
The temperature sensors can be installed alternatively in protection pockets or directly
in the heating and/or cooling agent. The measuring active temperature sensor part must
be in the center of the cross section of the pipe.
Temperature sensor installation in cooling application
The isolation may be made only up to the temperature sensor screw
connection.
The screw connection of the temperature sensors may in no case
be isolated with. This applies even if the temperature sensor is installed
directly in the flow sensor.
