Installation Of The Temperature Sensors - Diehl Metering 548 Manual De Instalación

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Spacer holder
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It is recommended that shut-off valves are fitted before and after the
energy meter to simplify removing the meter.
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The calculator should be installed in a conveniently accessible position
for service and operating personnel.
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Initial operation is to be carried out and recorded after installation.
3.

Installation of the temperature sensors

Handle the temperature sensor carefully!
Red: sensor in the hot line
Blue: sensor in the cold line
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Sensors must be installed symmetrically.
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The maximum cable length for PT100 and PT500 is 10 m.
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The connecting cables must not be shortened or extended.
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For DN 15 and DN 20, the sensors must be installed directly immersed.
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The free temperature sensor can be installed in a ball valve or in a
conformity- tested pocket for this type of sensor.
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Ensure that the temperature sensors are permanently connected dur-
ing operation.
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If the sensor is installed in a pocket, it must be inserted as far as the
bottom of the pocket and then secured.
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For installation in a ball valve, a 4-piece coupling set is enclosed in a
separate bag (see Fig. I).
Insert one O-ring in the sensor hole using the mounting pin supplied.
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Wall mounting
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