MULTICAL® 803
Kamstrup A/S · Technical description · 5512-2360_A1_GB_02.2019
7.1.6 Outlet energy registers A1 and A2
The function behind the “Outlet energy registers” is the fact that A1 accumulates heat energy consumed with low
outlet temperature for which the customer receives a discount, and A2 accumulates heat energy consumed with
high outlet temperature for which the consumer receives an addition.
The energy calculations of a heat meter with flow sensor in outlet are shown below:
A1 = m
3
x (t5-t2)k
t2
Heat energy at a discount
A2 = m
3
x (t2-t5)k
t2
Heat energy with an addition
The outlet temperature reference t5 can be factory-configured as required or can be changed via METERTOOL HCW
or the SETUP loop after delivery. Typical configuration is t5 = 50 °C.
t1 Inlet temperature
[°C]
t2 Outlet temperature
t5 Outlet temperature reference
E1 Total heat energy
[kWh], [MWh], [GJ], [Gcal]
A1 Heat energy at a discount
A2 Heat energy with an addition
As the accuracy of the absolute temperature has direct influence on the accuracy of the outlet energy registers A1
and A2, the zero error of the sensor pair and the influence from the sensors’ connection cable ought to be
compensated via the offset adjustment of MULTICAL® 803 (see paragraph 7.3).
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