Zenner MULTIDATA WR3 Bedienungsanleitung PDF herunterladen (Seite 4)

Connector pin assignment

Temperature sensors

2-wire measurement

Supply 1 - 2

Return 3 - 4

4-wire measurement (optionally)

Supply 1 - 2 / 5 - 6

Return 3 - 4 / 7 - 8

Flow sensor

Flow sensor pulse 10

GND 11

Input/Output

I/O 1 pulse 52

GND 53

I/O 2 pulse 54

GND 55

M-Bus

M-Bus L1 24

L2 25

RS-232

DTR 71

GND 72

Tx 73

Rx 74

RS-485

+UB 71

GND 72

A 73

B 74

Switch Connection 2-wire Connection 4-wire

Depending on the meter’s mo-

del the version of the connec-

tion board can differ.

or electric devices such as motors or pumps in

the immediate vicinity of the meter (minimum

distance 1 m). Cables leaving the meter should

not be laid parallel to live cables (230V, minimum

distance 0.2 m).

Declaration of Conformity

ZENNER International GmbH & Co. KG declares

that this product with the number of the EC type-

examination certicate DE-08-MI004-PTB012

complies with the requirements of the EC direc-

tives 2004/22/EC (Measuring instruments direc-

tive) and 89/336/ EEC (electro-magnetic compa-

tibility).

The most up-to-date information about this pro-

duct and of our installation notice can be found at

www.zenner.com

1 2 3 4 10 11 9 50 51 52 53 54 55 71 72 73 74

1 2 3 4 5 6 7 8 9 10 11 12

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