Pr
o
Minent
®
Page 94
Total Chlorine
Fitting the sensor in
the in-line probe housing
Note also the instructions and safety guidelines in the operating instructions of the in-line probe
housing.
DLG III
Slide the O-ring from below over the sensor up to the clamping ring.
Insert the sensor into the DLG III.
Fix the sensor tightly by screwing in the plug.
DGM
Slide the O-ring from below over the sensor up to the clamping ring. Leave a fl at washer inside
the DGM.
Insert the sensor in the DGM and screw on the plug until the O-ring seals. The clamping ring
determines the installation depth of the sensor.
8.8.2.2
DULCOTEST
®
CTE Sensor for Total Chlorine, Electrical Installation
General Safety Guidelines
IMPORTANT
Install in such as way as to ensure a totally reliable, uninterrupted power supply to the
controller. Too low a voltage supply can cause measuring failures, which may result in
dangerous overdosing within a control system.
The CTE 1-mA sensor has a passive 4-20 mA two-wire interface. The power supply is provided
externally or by the controller. When the sensor is connected to the DULCOMETER
®
D1C
controller the interface’s safety require ments are met automatically.
IMPORTANT
For electrical connection of the sensor to the controller, only use wires with a diameter of
4 mm.
Electrical
Installation
Turn the top part of the sensor a quarter of a turn anticlockwise and remove.
Remove the outer isolation of the cable for about 5 cm from the end so that the two wires
appear.
CTE 1-mA
Loosen the M12 threaded connector and guide the 2-wire cable into the sensor. Leave an
approx. 5 cm length of the 2-core measuring line in the sensor.
Strip the two wires at their ends and connect them to the terminal block by using the
screwdriver provided: 1 = plus, 2 = minus
Tighten up the M12 connector.
Insert the top part of the sensor right into the housing and turn the top part clockwise as far as
it will go.
Electrical
connection
to
sensor
1 2
5 cm
CTE 1-DMT
Insert the 5-pin plug into the socket.
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