TECHNICAL DESCRIPTION
MULTICAL
®
61
5512-622 GB/01.2011/Rev. E1
49
11.2.2
M-Bus + pulse inputs (67-00-20)
The M-bus module is supplied through the M-bus network and is thus independent of the meter’s internal supply.
Two-way communication between M-bus and water meter is carried out via optocouplers providing galvanic
separation between
M-bus and meter. The module supports both primary, secondary and enhanced secondary addressing.
The M-Bus module has two extra inputs. See paragraph 9.8 concerning the function of pulse inputs VA and VB.
11.2.3
Radio pulse inputs (67-00-21)
The radio module is available for operation at both licence-free and licence demanding frequencies. The module is
available with internal antenna as well as connection for external antenna.
The radio module is prepared to form part of a Kamstrup radio network, the read data being automatically
transferred to system software via the network component/network unit, RF Concentrator.
The radio module has two extra inputs. See paragraph 9.8 concerning the function of pulse inputs VA and VB.
The RadioRouter module (67-00-21) must be used with mains supply.
11.2.4
Prog. data RTC + 4…20 mA pulse inputs (67-00-22)
The module has connection possibility for two pressure transmitters on terminals 57, 58 and 59 and can be
adjusted for current reading or pressure ranges of 6, 10 or 16 bar.
The module is prepared for remote reading, data from meter/module being transferred to the system software via
the connected external GSM/GPRS modem on terminals 62, 63 and 64.
Furthermore the module has two extra pulse inputs, see paragraph 9.8 concerning the function of pulse inputs VA
and VB. The module must be powered by 24 VAC.
