Kamstrup MULTICAL 403 - Mounting in Inlet or Outlet; EMC Conditions; Climatic Conditions

MULTICAL® 403
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Kamstrup A/S · Technical description · FILE100000166_B_EN-55121689_M1_07.2023
4.6 Mounting in inlet or outlet
MULTICAL® 403 is configured for mounting of flow sensor in either inlet or outlet. In the display the flow sensor
position is indicated by a symbol, subjacently the A-code of the program number is selected as 3 or 4 for flow sensor
mounting in inlet and outlet respectively. The table below indicates installation conditions of heat meters and
cooling meters:
Formula
k-factor
A-code and
display
Hot
pipe
Cold
pipe
Installation
Heat meter
E1=V1(t1-t2)k
k-factor for t1
and V1 in inlet
A-code = 3
Display
V1 and
t1
t2
k-factor for t2
and V1 in
outlet
A-code = 4
Display
t1
V1 and
t2
Cooling meter
E3=V1(t2-t1)k
k-factor for t1
and V1 in inlet
A-code = 3
Display
t2
V1 and
t1
k-factor for t2
and V1 in
outlet
A-code = 4
Display
V1 and
t2
t1
4.7 EMC conditions
MULTICAL® 403 has been designed and CE-marked according to EN 1434 Class A and C (corresponding to
Electromagnetic environment: Class E1 and E2 of the Measuring Instruments Directive) and can thus be installed in
both domestic and industrial environments.
All control cables must be drawn separately and not parallel to e.g. power cables or other cables with the risk of
inducing electromagnetic interference. There must be a distance of min. 25 cm between signal cables and other
installations.
4.8 Climatic conditions
MULTICAL® 403 is designed for indoor installation in non-condensing environments with ambient temperatures from
5…55 °C, however max. 30 °C in order to obtain optimal battery lifetime. Protection class IP54 of calculator allows
splashes of water, but the calculator must not be submerged. The protection class of the flow sensor is IP68, which
means that it stands submergence.