Xylem Flow Converter 713 - Manual (Page 9)

9
Cable extensions
One of the most common faults on a MJK 713 installa-
tion is bad or faulty cable connections.
It is recommended to use a MJK connection box if the
sensor cable must be extended.
Ultrasonic sensor color codes
The ultrasonic sensor are standard delivered with 40 ft
of cable. The ultrasonic sensor can be delivered with up
to 150 ft of cable on order, or the standard 40 ft cable
can be extended to max. 150 ft.
The cable is a special low capacity cable,
so extensions should always be made with
the same type of cable.
MJK Connection
Box (NEMA 4X),
order no.
200590.
To ultrasonic
sensor
Max. 150 ft.
To MJK 713
flow meter
The ultrasonic sensor cable has 5 wires with both color
code and number:
Number Color Designation
1 Brown Ultrasonic pulse
Red Ultrasonic pulse
3 Orange Temperature compensation
4 Yellow Temperature compensation
5 Black Shield *)
*) This wire is connected to the cable shield.
The wires are mounted according to the terminal mark-
ings on the connection box PCB and on the MJK 713
respectively.
Cutting the cable
The cable is delivered with the wires stripped as shown
with the black wire (no. 5) soldered to the shield:
When the cable is cut, only 4 wires will appear:
When the cable has been cut, the shield
should be mounted in terminal 5 instead
of the black wire !