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standard. In addition, one of the following options can be ordered for remote output.
5.2 M-BUS
Cable: connected with galvanic isolation
Voltage: 50V max.
Current: M-Bus loads
Addressing: primary or secondary
Note: A higher frequency is not allowed and may result in meter malfunction!
Data transmission in the compatibility mode (= standard, one data frame) or in the full mode
(3 data frames) possible.
If the meter is equipped with
“
M-bus
”
, it is delivered with a two wire cable, which can be
lengthened with a cable 2 x 0.75mm2 (put a distributing box). Pay attention to the proper
polarity in case of the pulse output. If the meter is read out via M-bus, the allowed mean
frequency of reading must not be exceeded. Any more reading is not allowed and may
result in a damage to meter.
The M-Bus or pulse variant of the meter is supplied with a 2-wire cable with wire end
ferrules.
Version/Color
Pulse
M-Bus (2-wire)
Red
Pulse
M-Bus
Black
GND
M-Bus
5.3 Pulse Output (Optional)
Pulse output for heat or volume, with 2m cable connected, with galvanic isolation
Pulse significance: 1 pulse per 100/1000 liter
Pulse length: 100 ms (Programmable)
Heat / Volume: specify in order or change with service-software
Voltage: max. 30 V
Current: max. 30 mA
Pulse break: min. 25ms
Classification OC (acc. to EN 1434-2)
Voltage drop: ca. 1.3V at 20 mA
5.4 RS-485(Optional)
Cable: connected with four-core cable
Voltage: 5-24V.
Version/Color
RS-485
Red
VCC