Kamstrup MULTICAL 403 Technical Description

MULTICAL® 403
Kamstrup A/S · Technical description · FILE100000166_B_EN-55121689_M1_07.2023
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10.13 Data-backup in case of interruption of supply
MULTICAL® 403 is fitted with a small lithium battery (BR1632) as backup of the meter’s internal clock in case of
interruption of the supply. Independent of the mounted supply module the meter is equipped with functionality
which saves all current register counts in case the voltage of the internal 3,6 VDC supply is below 3,1 VDC. When the
supply is re-established, the meter continues counting from the value, which was saved when the supply was
interrupted.

Kamstrup MULTICAL 403 Specifications

General

Type	Ultrasonic Heat Meter
Flow Sensor	Ultrasonic
Pressure Rating	PN16
Battery Life	Up to 16 years
Approval	MID Class 2
Display	LCD
Communication	M-Bus, Wireless M-Bus, Modbus, BACnet
Power Supply	Battery
Accuracy	Class 2
Protection Class	IP54
Housing Material	Composite
Flow Rate Range	0.6 m3/h to 15 m3/h