Kamstrup MULTICAL 803 - Information on MULTICAL 803 & ULTRAFLOW; Permissible operating conditions and measuring ranges

MULTICAL® 803
2
Kamstrup A/S · Technical description · 5512-2360_A1_GB_02.2019
List of words and symbols
Word/symbol
Meaning
Unit
Expired designations
qi
Minimum approved flow
[l/h]
Q
i
, q
vmin
, Q
min
, q
min
qp
Permanent/approved nominal flow
[m³/h]
Q
s
, q
vmax
, Q
n
, q
n
, q
max
qs
Maximum approved flow
1
[m³/h]
Q
max
Θ
Temperature range of calculator
[°C]
θ
q
Temperature range of flow sensor (medium)
[°C]
θ
hc
Limit value for shift between heat and cooling
2
[°C]
ΔΘ
Temperature difference of inlet and outlet
[K]
Δflow
Difference in actual flow between V1 and V2
[m³/h]
ΔMass
Difference in mass between M1 and M2
[kg]
t
BAT
Battery temperature
[°C]
DN
Nominal diameter
[mm]
PN
Nominal pressure
[bar]
E
c
Max permissible error of calculator
[%]
E
f
Max permissible error of flow sensor
[%]
E
t
Max permissible error of temperature sensors
[%]
MPE
Maximum permissible error
[%]
PQ
Power and flow in connection with tariff
GF
Glass fibre reinforcement
KMP
Kamstrup Meter Protocol
CP
Coefficient of Performance (COP)
1
Less than an hour/day and less than 200 hours/year
2
Only available in meter type 6