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3.3 Fitting the temperature sensor pair
The meter is only sold with separately approved temperature
sensor pairs of type Pt 500.
Handle the temperature sensor carefully!
The sensor cables are provided with coloured type plates:
Red: sensor in the hot line
Blue: sensor in the cold line
The connecting lines of the temperature sensors, may not be
shortened or extended.
A common routing in cable conduits or on cable racks with power
supply lines are not admissible.
The minimum distance for low voltage cables according to EN 1434 - 6 of
50 mm must be observed.
3.3.1 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
Close the ball valve.
Unscrew the plug screw from the ball valve.
Installation (see g. IV)
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 nal position using the other end of the
mounting pin.
4. Fastening screws
Type A (plastic) - put the fastening screw onto the temperature sen-
sor.
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