MULTICAL® 803
Kamstrup A/S · Technical description · 5512-2360_A1_GB_02.2019
9
1.2
Electronic structure
The electronic construction of MULTICAL® 803 is shown in the block diagram below. The module slots in MULTICAL®
803 can be used with up to four communications modules that in addition to data communications also contain
pulse inputs or pulse outputs. An overview of the available communication modules can be found in paragraph 11.
1 Microcontroller
10 Wireless M-Bus
2 Display, eight-digit seven-s symbols
11 Pulse outputs
3 Non-volatile memory, EEPROM
12 M-Bus
4 Temperature sensors, Pt100 or Pt500, 2- or 4-wire
13 Data communication
5 Pulse inputs for flow sensors
14 RS 485, Modbus and BACnet
6 24 VDC supply for analog outputs (option)
15 LonWorks
7 Backup battery, 2 x A-cells
16 … and even more communication options
8 High-power SMPS, 24 VAC/VDC or 230 VAC
17 Galvanic separation, power supplies
9 Pulse inputs for additional water and electricity
meters
18 Galvanic separation, communication modules
Note: The arrows in the figure indicate the signal direction.