Xylem sensus DomoJet R, User Manual

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1 DomoJet R Introduction
DomoJet® R is a single-jet meter with mechanical movement and fully electronic timing devices designed for
measuring hot and cold water in residential applications.
DomoJet R measures the flow of water using a turbine and a magnetic drive (protected). DomoJet R is equipped with
an electronic metering unit with a display showing the volume, flow rate and any active alarms.
DomoJet R is equipped with an integrated radio which uses Wireless M-Bus technology allowing remote data
transmission. Data can be received using a special mobile reading kit or via concentrators and a fixed network.
The main technical features of DomoJet R are:
Single jet electronic version.
Available in both cold and hot water versions.
Accuracy class up to R160.
Electronic counting device for calculating consumption, fully rotatable (360°).
LC display.
Integrated wM-Bus radio operating in the 868 MHz band.
Integrated lithium battery guaranteeing a minimum service life of 12 years.
Radio data decryption
The data that is transmitted by radio is encrypted to prevent unauthorized access. To decrypt the radio data, the
appropriate radio key (KEY) is required.
How to obtain the radio key:
There is a visible QR code on the bonnet of the meter. This code contains an Internet address and a token, which is a
process number with a server connection. This token is not the actual radio key, but is used to provide the radio key to
only authorized authenticated persons. The QR code can be scanned with any suitable device, such as a smartphone,
using a QR application. The internet link leads to the website with the token. The actual key is accessible through this
website after successful authentication. The radio key is only available to the authenticated user and is blocked against
access by third parties.
If the token cannot be assigned, or if the meter has already been registered elsewhere, a new activation can only
be achieved by a corresponding request to the Sensus Service Team (recoverkey@xylem.com). To avoid this, it is
recommended to keep the bonnet surface clean to ensure further protection of the data and to enable secure radio
reading.
Note : The radio key and QR code are different for each meter.
Safety warnings
This manual is the property of Xylem. Reproduction or transfer of the contents of this document to third parties is
prohibited. All rights reserved. This document represents an integral part of the product; ensure that it is always
together with the product (even in the event of sale or transfer to another owner) to allow its consultation by the user or
authorized maintenance or repair personnel.
Carefully read this manual before using the device to ensure safe operation.
The device must be used as defined by Xylem, that holds no responsibility for damage to persons, animals or property
due to installation, adjustment or maintenance errors or improper use of the device.
After removing the packaging, ensure that the product is intact and complete. If the contents do not correspond to the
order, consult the distributor that sold the device.
The device must be installed and used in an area protected from freezing.