User Manual

ManualsBrandsSiemens ManualsMetering devicesMechanical water meter

A6V11991477_en

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Smart Infrastructure

2020-07-01

Metering

-bus Add-on Module for water meters

WFZ311

The M-bus add-on module WFZ311 acquires and processes the information

delivered by a mechanical water meter. The data are read out by the M

-bus

master via M

-bus.

●

Detection of reverse flow

●

Backup battery for data security

●

Module can be retrofitted at any time

Summary of content (6 pages)

PAGE 1
Metering M-bus Add-on Module for water meters WFZ311 The M-bus add-on module WFZ311 acquires and processes the information delivered by a mechanical water meter. The data are read out by the M-bus master via M-bus.
PAGE 2
Use The M-bus add-on module is used to integrate a mechanical water meter in a M-bus system. The module can be retrofitted at any time: Functions The M-bus add-on module is fitted to a mechanical water meter which has an opening to accommodate the module and is then secured with a screw. The module acquires the information from the meter and passes it on to the M-bus system.
PAGE 3
Type summary The following add-on module is available: Designation Order number Type M-bus add-on module for water meters S55563-F158 WFZ311 Ordering Please specify the quantity, order number, and type when ordering. Scope of delivery The add-on module is supplied complete with Mounting Instructions in several languages and the necessary mounting material (countersunk-head screw 2.2x13 mm and adhesive seal).
PAGE 4
Notes Mounting When mounting the add-on module, proceed as follows: 1. Remove interface cover from the water meter 2. Plug in the add-on module and secure it with the screw. 3. Connect the module to the M-bus system (the stranded wires can be interchanged). 4. Place the adhesive seal on the screw. Shortly after installation, the add-on module automatically identifies the water meter’s scanning disc. It cannot acquire the initial meter reading and the water meter number (address).
PAGE 5
Technical data Power supply Battery type Lithium battery CR2032 (cannot be replaced) Battery voltage 3V Battery life ● with power supply via M-bus and not started ≥11 years with backup Battery life ● without power supply via M-bus Ca. 3 months M-bus M-bus slave interface Per EN 13757-2 / -3 Standby current ≤1.5 mA Standard load 1.
PAGE 6
Housing Material ABS DAFNELAC FXC Color RAL 9003 (signal white) Weight Device packed complete with inserts 46 g *) The documents can be downloaded at http://siemens.com/bt/download. Dimensions 27.10 8 34 47 13 62 62 Issued by Siemens Switzerland Ltd Smart Infrastructure Global Headquarters Theilerstrasse 1a CH-6300 Zug Tel. +41 58 724 2424 www.siemens.