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The free temperature sensors can be fitted so they are directly sub-
merged (e.g. ball valve) or in a pocket tested for conformity for this
sensor type.
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Sensors must be installed symmetrically.
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After initial operation of the meter, ensure that the temperature sen-
sors are always correctly connected at the calculator.
4.1 Installation in the ball valve with adapter
(coupling set in a separate bag)
Use ball valves with installation option for temperature sensor with thread
M10 x 1.
Preparatory measures
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Close the ball valve.
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Unscrew the plug screw from the ball valve.
Installation (see fig. II)
1. Place the O-ring from the attached coupling set (type A or B) on the
mounting pin.
2. Insert the O-ring with the mounting pin into the sensor hole of the ball
valve (turn the mounting pin).
3. Position the O-ring in its final position using the other end of the
mounting pin.
4. Fastening screws
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Type A (plastic) - plug the fastening screw onto the temperature sen-
sor.
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Type B (brass) - insert the temperature sensor in the fastening screw
and place the sensor in the mounting pin. Press in the dowel pin com-
pletely and remove the mounting pin.
5. Insert the temperature sensor with the securing fitting in the ball
valve and manually tighten (2-3 Nm).
4.2 Installation in a pocket
It is recommended that temperature sensors for DN25 rated sizes or
smaller are only fitted in new installations such that they are directly
immersed.
This ensures higher measuring accuracy.
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