MULTICAL® 803
Kamstrup A/S · Technical description · 5512-2360_A1_GB_02.2019
153
11.4.5
M-Bus + Thermal Disconnect (type no.: HC-003-22)
This M-Bus module has an output for connection of a 24 VAC, normally open or normally closed, hydraulic actuator
that is supplied by the module's external power connection. Thermal Disconnect allows remote disconnect of the
flow, for example in connection with energy management and maintenance or as a result of leak detection. The
Thermal Disconnect system is physically placed on the M-Bus module, but the output is controlled by MULTICAL® by
means of commands that are sent via the M-Bus network. The module is supplied via the power supply in
MULTICAL®.
The Thermal Disconnect module requires an external 24 VAC supply for operating the hydraulic actuator. Actuators
with a power consumption up to 5 VA can be used.
For remote control of Thermal Disconnect, the Windows®-based PC program USB Meters Reader is used.
11.4.6
Wireless M-Bus + pulse inputs (type no.: HC-003-30)
The Wireless M-Bus module is designed for use in both Wireless M-Bus systems for reading with READy Converter
and Wireless M-Bus network systems that operate within the licence-free frequency band in the 868 MHz range.
The communication protocol is C mode or T mode according to the standard EN13757-4. The Wireless M-Bus
module supports both individual and common encryption key. However, the common encryption key is only
available on request. The modules are available with connection to both internal and external antenna.
The output data package can be configured to include various register combinations by means of METERTOOL HCW
and READy.
See paragraph 11.5 for information about mounting of antenna.