Xylem MJK 713 Open Channel Flowmeter - Manual (Page 16)

16
Manual
US 3.10 713 Flow Converter 1210 - Sw 833062
MJK North America, Inc.
37 Sherwood Terrace, #126
Lake Bluff, Il 60044
Tel.: 847-482-8655
Fax: 847-482-8654
[email protected]
www.mjk.com
Hydrostatic transmitter
the pressure transmitter are delivered with 40 ft of cable
as standard.
the cable can be lengthened with any type of cable using
MJK connection box 202922. Although the measuring
signal is not sensitive to electrical noise, we recommend
the use of a screened cable.
Ensure that no moisture can enter the pressure
compensation tube inside the cable.
the factory delivered cable has three wires marked with
the numbers 1 - 2 - 3.
Number: Color: Designation:
1 Black Positive (+) wire
2 Black negative (-) wire
3 Black Shield )*
4 - Air pressure compensation tube
)* 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.
Take care not to block or squeeze the air pressure
compensation tube ➃.
Cutting the cable
the cable is delivered with the wires stripped as shown
with wire no. 3 soldered to the shield:
➁
➀
➃ ➂
when the cable is cut, 7 wires will appear:
When the cable has been cut, the shield
should be mounted in terminal 3 instead of
the black wire !
the small-gauged colored wires MUSt not be used or
short circuited as it may damage the pressure transmitter.
The colored wires should be cut off in different lengths
to prevent them from short circuit.
See also separate instruction manual for the MJK pres-
sure transmitter.
when the pressure transmitter is mounted and connected
correctly, the MJK 713 can be connected to the power
supply.
See section ‘Quick start’ on page 18.
To MJK 713
flow meter
To pressure
transmitter
Max. loop resistance
600 Ω !
MJK Connection
Box (NEMA 4X)
with vent plug,
order no 202922.
➂