Xylem 531-532-533 DIGITAL INDICATORS - Manual (Page 2)

Note: A jumper must be mounted in terminal 1 and two in
the middle terminal block !
3 M531-2-3GB0504
Field indicator type 531, 4-20mA loop powered
General
Field indicator 531 is supplied either in IP65 enclosure or as a
display insertion for mounting in a connection box for a pres-
sure, pH or temperature transmitter. The indicator is loop
powered from the 4-20mA signal with a maximum voltage drop
of 3,5 V.
Specifications
Item number, complete instrument: 200125
Item number, display insertion: 200126
Mounting and enclosure: Field, IP65
Supply: 4-20 mA
Voltage drop: Max: 3,5 V
Dimensions: 80 X 120 X 56 mm (HxWxD)
Switch settings
Connection
Electrical connection is made as shown on the following diagrams.
The display insert is connected to the two terminals on the PCB
in the junction box. (Red to + and black to -). A Zener diode
ensures the current loop if the display insert is disconnected.
Note: A separate 531 display insert can be mounted on an
existing junction box. According to the version, the
PCB can be mounted with one or two solder bridges.
4 M531-2-3GB0504
Field indicator type 531 in series (as junction box)
Mount the cables as shown below:
Note: No jumpers must be present.
Field indicator type 531 for active 4-20 mA signal
The active 4-20 mA signal is connected to the leftmost
terminals as shown below:
Active
4-20 mA signal
531 Display insert
DIGITAL INDICATORS DIGITAL INDICATORS
Active
4-20 mA signal
Pressure
transmitter
531 Display insert
MJK Automation A/S
Byageren 7
DK-2850 Nærum
Denmark
[email protected]
www.mjk.com MJK Automation A/S
Byageren 7
DK-2850 Nærum
Denmark
Tel.: +45 45 56 06 56
Fax: +45 45 56 06 46
Decimal point
Measurement
4mA display
20mA display
Measurement
off on
1
2
3
4
5
6
{
n
n
n
n
n
n
n
n
n
4 mA setting
off on
20 mA setting
off on