Kamstrup MULTICAL 403 - 14 Calibration of MULTICAL 403 Using METERTOOL HCW; Calibration Equipment

MULTICAL® 403
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Kamstrup A/S · Technical description · FILE100000166_B_EN-55121689_M1_07.2023
14 Calibration of MULTICAL® 403 using METERTOOL HCW
In order to calibrate MULTICAL® 403 calibration equipment is required, and calibration data must be entered in
METERTOOL HCW.
See Technical description for METERTOOL HCW, 5512-2097_GB and Technical description for Calibration Unit
MC403, 5512-3272_GB.
14.1 Calibration equipment
Calibration equipment is used for calibration of the calculator MULTICAL® 403. Different temperatures are simulated
on the two temperature sensor inputs (t1 and t2). Together with the volume simulation (autointegration) they form
the basis of the calibration of the energy calculation, E1 and E3.
The equipment was primarily constructed for use in laboratories testing and verifying meters but can also be used
for performance testing the meter. METERTOOL HCW (6699-724) is used for configuration, test and calibration.
Calibration equipment for MULTICAL® 403 includes USB interface. During installation this interface creates a virtual
COM port which figures on the computer as an optional COM port in METERTOOL HCW. As the virtual COM port only
exists when the equipment is connected, the calibration equipment must be connected to the computer before
METERTOOL HCW is started.
Note: Calibration does not include temperature sensors and flow sensor.
The calibration equipment comes in two different types, depending on the type of MULTICAL® 403 to be calibrated
(Pt100 or Pt500). Both calibration equipments calibrate the meter as both heat meter and cooling meter via five
calibration points.
Calibration equipment
Temperature,
t1 [°C]
Temperature,
t2 [°C]
Temperature
difference,
t1-t2 [K]
2-Wire Pt500
Type No. 6699-366
Standard (EN1434/MID)
44,3
80,0
160,0
15,0
6,0
41,0
65,0
20,0
18,3
20,0
3,3
15
140
-3,3
-14
2-Wire Pt100
Type No. 6699-367
Standard (EN1434/MID)