MULTICAL® 403
Kamstrup A/S · Technical description · FILE100000166_B_EN-55121689_M1_07.2023
3.2.7 Integration mode >L<
MULTICAL® 403 uses time-based integration, which means that accumulated volume and energy are calculated at
fixed or variable time intervals. The time interval is configurable via the L-code and independent of the water flow.
Please be aware that the choice of integration mode in combination with the selected communication module and
battery type defines the meter’s battery lifetime. Please see paragraph 10.4 re the meter’s battery lifetime.
The meter has six optional integration modes; three modes, in which the meter's display remains switched on and
three modes, in which the meter’s display is switched off 8 min. after the latest registered activation of a key. During
periods with the display switched off a dot flashes (heart beat indication) at intervals of 30 s to indicate that the
meter is active.
Note: L-code selections, if any, are configured via the meter’s country code.
Adaptive mode (4-64 s) 1 5
Normal mode (32 s) 2 6
Fast mode (4 s) 3 7
Note: Activating a key on the display changes the time interval to 4 seconds regardless of integration mode.
4 minutes after the latest registration of a key, the time interval returns to the interval based on the integration
mode.
Adaptive mode (4-64 s)
Adaptive mode is the meter’s intelligent integration mode, in which the time interval is currently adjusted. This
mode combines the long battery lifetime obtained in “Normal mode” with the high measuring and calculation
resolution obtained in “Fast mode”.
When the system is stable, i.e. runs at stable flow and power, the meter will use the time interval of 64 s.
MULTICAL® 403 currently measures if there are changes in flow and power. If so, the time interval is reduced to 4 s,
which means that the meter calculates volume and energy every four seconds. Thereby higher resolution and higher
precision are obtained during periods with changes in the system.
When the system is stable again, the meter gradually returns to the 64 s. interval. MULTICAL® 403 reacts quickly to
changes in the system by reducing the time interval to 4 seconds; however, it gradually returns to the time interval
of 64 s. as the system becomes stable.
Thus, in adaptive mode MULTICAL® 403 measures at high resolution during periods with changes in the system and
in which accurate measurements are required and saves battery power during stable periods.
Adaptive mode is recommended for all systems including those with tap water exchanger. According to EN 1434-1, it
is, however, recommended to use a meter with a constantly high reaction speed such as “Fast mode”.
Normal mode (32 s)
In normal mode the integration interval is set at 32 seconds, which means that the meter calculates accumulated
volume and energy every 32 seconds.
Normal mode is recommended for systems with hot water tank and similar systems.
Fast mode (4 s)
In fast mode the integration interval is set at 4 seconds, which means that the meter calculates accumulated volume
and energy every 4 seconds.
Fast mode is recommended for all systems including those with tap water exchanger. Fast mode (4 s) meets the
requirements for "Fast response meter" in EN 1434.
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