17Kamstrup A/S • 55122412_A1_GB_2019-03
MULTICAL® 803 & ULTRAFLOW®
9 Communication modules
MULTICAL® 803 can be extended by a wide range of extra functions by means of communication
modules. Below, pulse inputs/outputs and module types are briefly described.
Note: Before replacing or mounting modules, the supply to the meter must be switched off. The
same applies for mounting of an antenna.
9.1 Module overview
MULTICAL® 803 communication modules:
Type no. Description
HC-003-10 Data Pulse, inputs (In-A, In-B)
HC-003-11 Data Pulse, outputs (Out-C, Out-D)
HC-003-20 Wired M-Bus, inputs (In-A, In-B)
HC-003-21 Wired M-Bus, outputs (Out-C, Out-D)
HC-003-22 Wired M-Bus, Thermal Disconnect
HC-003-30 Wireless M-Bus, inputs (In-A, In-B), 868 MHz
HC-003-31 Wireless M-Bus, outputs (Out-C, Out-D), 868 MHz
HC-003-40 Analog outputs 2 x 0/4…20 mA
HC-003-41 Analog inputs 2 x 4…20 mA / 0…10 V
HC-003-43 PQT Controller
HC-003-60 LON TP/FT-10, inputs (In-A, In-B)
HC-003-66 BACnet MS/TP, inputs (In-A, In-B)
HC-003-67 Modbus RTU, inputs (In-A, In-B)
HC-003-80 2G/4G Network
HC-003-82 Modbus/KMP TCP/IP, inputs (In-A, In-B)
9.2 Pulse inputs
Pulse inputs A and B are used for connection of
extra meters with either reed switch output or
passive electronic pulse output.
Min. pulse duration is 30 ms and max pulse
frequency is 3 Hz.
65 +
Pulse input A
66 -
67 +
Pulse input B
68 -
If a module with pulse inputs is mounted in MULTICAL®, the meter is automatically configured for
pulse inputs. Note that the pulse figure (litres/pulse) must match the extra water meters and the
configurations of inputs A and B. After delivery, the configurations of pulse inputs A and B can be
changed by means of the PC program METERTOOL HCW.
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