www.sensus.com
Domo M
Optical sensor kit with M-Bus output
Description
The Domo M optical sensor is designed for usage with Sensus
DomoJet and DomoMUK water meters.
The device detects the revolutions of the litre pointer. The reading
is then sent to a standard M-Bus system.
During operation, the module is supplied with power by the M-Bus
network. A built-in battery provides power supply when the meter
is temporarily not connected to the M-Bus network.
The sensor is also suitable for usage with the meters of the Modularis
series. Please check for compatibility with your meter.
Compliance
Maddalena S.p.A. declares that Domo M is compliant with the
mandatory requirements of the following directives and standards:
– Directive 2014/30/EU (EMV – Electromagnetic Compatibility)
– Directive 2011/65/EU (RoHS)
The full declaration of EU compliance is available from the follo-
wing website: www.sensus.com
Installation
(if module is not already mounted on meter)
Connection to the M-Bus network
The device is deactivated upon delivery. Activation is accomplished
by connecting the wires to the M-Bus network. After connection,
allow a few revolutions of the pointer before it starts counting (self-
calibration).
Configuration
The device connected to a standard M-Bus level converter can be
configured with MiniCom 3 software (www.sensus.com).
Default settings:
• Baud rate: 2400
• Primary address: 0
• Medium: water
• Initial reading: 0
• Periodic reading: first day of the month
Cable connections
No polarity
Cable extensions according M-Bus standard
Technical specifications
• Electronic sensor encapsulated in potting compound
• Protection rating: IP68
• Pulse outputs: M-Bus (EN 13757)
• Pulse factor: 1 pulse = 1 litre (max. 2 pulses/sec.)
• Alarms: suspected leak, backflow, no consumption
• Operating temperature: -10 °C ÷ +55 °C
• Storage temperature: -20 °C ÷ +70 °C
• Battery service life with M-Bus power supply: up to 12 years
• Battery service life without M-Bus power supply: 1.5 years
• Reference standards: EN 61000, EN 14154-3, EN 13757-2 and 3
Installation Manual
Domo M
M-Bus Communication Module
CABLE
2 x 0.25 mm
2
/ L = 1 m
M-BUS
M-BUS
WHITE
BROWN
1
Detach the transparent lid
from the meter; if necessary,
clean the surface over the
pointer.
3
Tighten the screw.
4
Apply the tamper-evident
seal supplied. Check
correspondence of the RED/
BLUE colour of the seal with
the HOT/ COLD water line
where the meter is installed.
2
Fit the sensor. Press until it is
even with the cover surface.
MS 1060 INT11 • 10.2021• 0001.6
EN DE FR ES IT
SL SK CZ PL RU UA
