MULTICAL® 403
Kamstrup A/S · Technical description · FILE100000166_B_EN-55121689_M1_07.2023
8.3 Flow limits
In the meter’s whole working range from min. cut-off and far beyond qs there is a linear connection between the
flow rate and the measured water flow.
In practice the highest possible water flow through the meter will be limited by the pressure in the system or by
possible cavitation due to too low back pressure.
If the flow is lower than min. cut-off or negative, MULTICAL® 403 does not measure any flow.
According to EN 1434 the upper flow limit q
s
is the highest flow at which the flow sensor may operate for short
periods of time (< 1 h/day, < 200 h/year) without exceeding max. permissible error. MULTICAL® 403 has no
functional limitations during the operating period above q
p
. Please note, however, that high flow velocities may
cause cavitation, especially at low static pressure. See paragraph 4.5 for further details on operating pressure.
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