MULTICAL® 803
110
Kamstrup A/S · Technical description · 5512-2360_A1_
GB
_02.2019
7.4
Bifunctional heat/cooling metering
MULTICAL® 803 is available as heat meter (meter type 2), cooling meter (meter type 5) or bifunctional heat/cooling
meter (meter type 3 and 6).
Meter type
Heat meter (MID modules B+D)
2
Heat/cooling meter (MID modules B+D & TS+DK268)
Θ
hc
= OFF
3
Cooling meter (TS27.02+DK268)
5
Heat/cooling meter (MID modules B+D & TS27.02+DK268)
Θ
hc
= ON
6
Country code (language on label, etc.)
XX
If MULTICAL® 803 has been supplied as a heat/cooling meter (meter type 3 and 6), heat energy (E1) is measured at a
positive temperature difference (t1>t2), whereas cooling energy (E3) is measured at a negative temperature
difference (t1<t2). Temperature sensor t1 (marked in red) is mounted in the inlet, whereas t2 (marked in blue) is
mounted in the outlet.
θ
hc
acts as a limit value for the measurement of heat/cooling energy. With θ
hc
enabled, heat energy is only measured
when t1 is greater than or equal to θ
hc
. Likewise, cooling energy is only measured if the inlet temperature t1 is lower
than θ
hc
.
In heat/cooling meters, the limit value θ
hc
should be set to the highest temperature which has appeared in the inlet
in connection with cooling, e.g. 25 °C. If the calculator
is to be used for billing, θ
hc
is a legal value and this appears
from the display.
Configuration of the function θ
hc
is only possible in meter type 6. Configuration is possible in the interval 0.01..180.00
°C. In order to disable θ
hc
, this value must be configured to 250.00 °C. In other meter types
than meter type 6, θ
hc
is
permanently “OFF” in the configuration. θ
hc
is configured via the SETUP loop or METERTOOL HCW. See paragraph 6.3
and the technical description of METERTOOL HCW (5512-2097) for further information.
Note: There is no hysteresis in connection with shift
between heat and cooling energy measurement (Δθ
hc
= 0.00 K).