Kamstrup MULTICAL 403 Technical Description

MULTICAL® 403
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Kamstrup A/S · Technical description · FILE100000166_B_EN-55121689_M1_07.2023
7.7 Information code types
MULTICAL® 403 constantly monitors a number of important functions. If a serious error occurs in measuring system
or installation, a flashing “INFO” will appear in the display. The ”INFO” field keeps flashing as long as the error is
present no matter which reading you choose. The ”INFO” field automatically disappears when the reason for the
error has been removed.
Note: Configuration for ”Manual reset of info code” is not possible in MULTICAL® 403
7.7.1 Information code types
In MULTICAL® 403 each digit of the info code is dedicated to one of the meter’s part elements. For instance the
second digit from the left in the display is always related to information on temperature sensor t1. At the same time
the info code is divided according to sections so that a reading from left to right consists of: General information,
temperature information (t1 and t2), flow information (V1) and information on pulse inputs A and B (In-A and In-B),
see table below for an overview of info codes.
Display digit
Description
1
2
3
4
5
6
7
8
Info
t1
t2
0
V1
0
In-A
In-B
Bit format
3
1
No voltage supply
1
1
2
Low battery level
2
9
External alarm (e.g. via KMP)
4
1
t1 Above measuring range or disconnected 8
1
t2 Above measuring range or disconnected 16
2
t1 Below measuring range or short-circuited 32
2
t2 Below measuring range or short-circuited 64
9
9
Invalid temperature difference (t1-t2) 128
3
V1 Air 256
4
V1 wrong flow direction
4
512
6
V1 > q
s
for more than an hour
2048
8
Pulse input A Leakage in system
4096
9
Pulse input A. External alarm 16384
8
Pulse input B Leakage in system
2
8192
9
Pulse input B. External alarm 32768
1
This info code parameter does not appear from the current info code as it is only active when the meter is without
supply. The info code is saved in the info log, and it will appear from the info log that the meter has been without
power supply.
2
Info code for leakage at pulse input B, must be actively selected.
3
It is possible to see the information code in bit format using LogView HCW. In case of several simultaneous
information codes, the sum of all the codes will be shown. The information code is sent in bit format via data
communication as well.
4
This info code is set if there has been flow in the wrong direction for minimum 1% of qp for at least 10 minutes. It is
reset again at the first flow measurement with correct flow direction.

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