Kamstrup MULTICAL 403 Technical Description

MULTICAL® 403
Kamstrup A/S · Technical description · FILE100000166_B_EN-55121689_M1_07.2023
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2.2 Electrical data
Calculator data
Typical accuracy
Calculator: E
c
±
(0,15 + 2/
∆Θ
) % Sensor set: E
t
±
(0,4 + 4/
∆Θ
) %
Display
LCD – 7 or 8 digits, digit height 8,2 mm
Resolutions
9999,999 – 99999,99 – 999999,9 – 9999999
99999,999 – 999999,99 – 9999999,9 – 99999999
Energy units
MWh – kWh – GJ
Data logger (EEPROM),
Programmable
Logging intervals: From one minute to one year
Logger content: All registers can be selected
Standard logger profile: 20 years, 36 months, 460 days, 72 hours
Info logger (EEPROM)
50 info codes
Clock/calendar
(with back-up battery)
Clock, calendar, leap year compensation, target date
Clock deviation
Unadjusted by AMR: Less than 15 min./year from legal time
Adjusted by AMR every 48 hrs: Less than 7 sec. from legal time
Summer/winter time (DST)
Programmable under country code.
The function can be disabled so that ”technical normal time” is used
Data communication
KMP protocol with CRC16 used for optical communication
as well as modules.
Power of temperature
sensors
<
10
µ
W RMS
Supply voltage
3,6 VDC ± 0,1 VDC
Battery
3,65 VDC, D-cell lithium
3,65 VDC, 2 x A cells lithium
3,65 VDC, C-cell lithium
1
Replacement interval
- Wall mounted
- Mounted on flow sensor
16 years @ t
BAT
< 30 °C
14 years @ t
BAT
< 40 °C
9 years @ t
BAT
< 30 °C
8 years @ t
BAT
< 40 °C
See paragraph 10.4 for further information.
Back-up battery
(for real time clock)
3,0 VDC, BR-cell lithium
Lifetime: 20 years @ t
BAT
< 40 °C with connected battery/supply or
4 years @ t
BAT
< 40 °C without connected battery/supply
Mains supply
230 VAC +15/-30 %, 50/60 Hz
24 VAC ±50 %, 50/60 Hz
Insulation voltage
3,75 kV
Power consumption
< 1 W
Back-up supply
Integral SuperCap eliminates interruptions due to short-term power failures
(Supply modules type 403-xxxxxxxxxxx7 and -8 only)
EMC data
Fulfils EN 1434 class A and C (MID class E1 and E2)
1
For especially current-demanding applications, such as battery operation of an NB-IoT module. This battery package
includes a lithium C-cell as well as a special capacitor that helps the battery to deliver high pulse currents.

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