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MULTICAL®
602
Kamstrup
A/S
∙
Technical
Description
∙
5512
‐
931_N1_GB_11.2016
31
6
Calculator functions
6.1
Energy calculation
MULTICAL
602 calculates energy based on the formula in EN 1434-1:2007 in which the international temperature
scale from 1990 (ITS-90) and the pressure definition of 16 bar is used.
The energy calculation can in a simplified way be expressed as: Energy = V
k.
The calculator always calculates energy in
Wh
, and then it is converted into the selected measuring unit.
E
Wh
=
V
k
1000
E
kWh
=
E
Wh
/ 1,000
E
MWh
=
E
Wh
/ 1,000,000
E
GJ
=
E
Wh
/ 277,780
E
Gcal
=
E
Wh
/ 1,163,100
V
is the supplied (or simulated) water volume in m
3
. E.g. if a CCC code = 119 is used, the calculator will be
programmed to receive 100 pulses/liter. E.g. if 10,000 pulses are added this corresponds to 10,000/100 =
100 liters or 0.1 m
3
.
is the temperature difference measured, e.g.
= inlet temperature – outlet temperature. Please note,
that various temperatures are used to calculate
as MULTICAL
602 calculates various different energy
types. Both in the display and during data reading each energy type is uniquely defined, e.g.:
Heat energy: E1 = V1(T1-T2)k
Cooling energy: E3 = V1 (T2-T1)k
k
is the thermal coefficient of water which is calculated on the basis of formula in EN 1434-1:2007 (identical
with the energy formula in OIML R75-1:2002). For control calculations Kamstrup can supply an energy
calculator :
Содержание MULTICAL 602
Страница 2: ...MULTICAL 602 2 Kamstrup A S Technical Description 5512 931_N1_GB_11 2016 ...
Страница 70: ...MULTICAL 602 70 Kamstrup A S Technical Description 5512 931_N1_GB_11 2016 7 2 1 Connection examples ...
Страница 130: ...MULTICAL 602 130 Kamstrup A S Technical Description 5512 931_N1_GB_11 2016 ...