Diehl Metering IZAR RC 868 i WATERBOX G4 User Manual - Page 4

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IZAR RC 868 i W G4

1.3 CONFIGURING IZAR RC 868 I W G4

IZAR RC 868 i W G4 is configured with an IZAR OH RS232 or
IZAR OH BT optical head.
The optical head must be positioned in front of the diode on the
top of the radio and resting on the boss (fig.2).
Data required during configuration:
Meter serial number
•
Pulse weight (unit/value)
•
•
Index (unit/value)
Profile
•
The choice of mode (normal or extended historical values) is
made during factory or on-site configuration.
The software recognizes automatically the module type. For
more details on the configuration and the "logger" function,
refer to the software user guide.

2 OPERATION

2.1 OPERATING PRINCIPLE

2.1.1

COMMUNICATION

IZAR RC 868 i W G4 sends data in R3 mode using the OMS standard version 3: OMS is a
communication protocol developed within the framework of the CEN TC 294 recommendations of the
EN 13757-3/-4 standard regarding the use of the 868 MHz frequency band for radio reading of
metering devices.
2.1.2
OPERATION
IZAR RC 868 i W G4 radio module contains an electronic circuit that collects information coming
from a Diehl Metering water meter (current index, 11 historical index values, detailed leaks
information and alarms).
In "normal" mode, information is emitted:
Every 12 seconds with the OMS protocol at the 868.95 MHz frequency in R3 mode for the index
•
and alarms. Detailed information regarding leaks and historic of consumptions are transmitted
every 6 sendings.
Every 15 minutes at the 868.30 MHz frequency in R4 long range fixed network mode.
•
In "extended historical values" mode, information is emitted:
Every 30 seconds in R3 mode at the 868.95 MHz frequency
•
•
Every 15 minutes at the 868.30 MHz frequency in R4 long range fixed network mode
Important notes regarding the "extended historical values" mode:
In this "extended historical values" mode, detailed leakage information is not sent
•
In this mode, the current index is not sent. Only historical values are present in the frame. The
•
most recent index sent in the frame is the one from the previous day at 23:59.
•
Since no current index is sent, this mode is not OMS certified, despite the fact that the data in
the frame is OMS compatible.
In this mode it is recommended not to activate the reception of the very long frame in the
•
IZAR@MOBILE 2 software for mobile tours because this frame is not sent.
4
fig.2
10/2020