MULTICAL® 302
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Kamstrup A/S · Technical Description · 5512-1334_F1_GB_12.2016
7
Calculator functions
7.1
Measuring sequences
MULTICAL
302 uses time-based integration, which means that calculations of accumulated volume and energy are
carried out at fixed time intervals independent of current water flow. In normal mode the integration interval of
MULTICAL
302 is 32 s, whereas the interval is 8 s in ”fast mode”.
”Transport state”
In ”Transport state” MULTICAL
302 runs through an integration sequence of 96 s, which minimizes the power
consumption during transport.
”Normal mode”
In "normal mode" MULTICAL
302 passes through an integration sequence of 32 s During this sequence water flow is
measured at 4-second intervals. Inlet and outlet temperatures are measured in the middle of the sequence and at the
end of the sequence energy and volume are calculated. All display readings are updated at 32-second intervals.
”Fast mode”
In "fast mode" MULTICAL
302 passes through an 8-second integration sequence. During this sequence water flow is
measured at 2-second intervals. Inlet and outlet temperatures are measured in the middle of the sequence and at the
end of the sequence energy and volume are calculated. All display readings are updated at 8-second intervals.
”Test mode”
In "test mode" MULTICAL
302 passes through a 4-second integration sequence. During this sequence water flow is
measured at half-second intervals. Inlet and outlet temperatures are measured in the middle of the sequence and at
the end of the sequence energy and volume are calculated. All display readings are updated at 4-second intervals.
If you press the front button for 5 seconds the display reverts to energy reading. Alternatively, the display reverts to
energy reading after 9 hours in test mode.
”Display on”
Press the front button to switch on the display. If you leave the display at other readings than energy, it automatically
reverts to the primary energy indication after 4 minutes, and after 4 more minutes without touching the button the
display switches off.
Tolerance of time indications
The timing of the measuring sequences can vary approx. ± 3 % in order to secure correct synchronisation with data
communication.
