Kamstrup MULTICAL 403 Technical Description

MULTICAL® 403
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Kamstrup A/S · Technical description · FILE100000166_B_EN-55121689_M1_07.2023
13.5.1 Verification pulses
When Pulse Interface type 6699-143 is connected to power
supply or battery, the unit is placed on the meter, and the meter
is in test mode, the following pulses are transmitted:
• High-resolution energy pulses on connection terminals 7 and 8
• High-resolution volume pulses on connection terminals 4 and 5
Note:
For pulse resolution, see table below.
Pulse Interface 6699-143, technical data
Supply voltage
Current consumption
Pulse outputs
Pulse duration
3,6 – 30 VDC
< 15 mA
< 30 VDC < 15 mA
3,9 ms
The resolution of the pulse outputs depends on the specific flow sensor size, see table below.
Flow sensor size qp [m³/h]
Energy [pulses/kWh]
Volume [pulses/litre]
Flow @ 120hz [L/h]
0,6
1000
100
4320
1,5
1000
100
4320
2,5
1000
100
4320
3,5
500
50
8640
6,0
250
25
17280
10
125
12,5
34560
15
125
12,5
34560
13.5.2 Use of high-resolution pulses
The high-resolution energy/volume pulses can be connected to the test stand used for calibration of the meter, or to
Kamstrup's Pulse Tester, type 6699-279, as shown in the drawing below.

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