FLOW RANGE CALCULATOR
Sensor selection
Sensor Type
S415
S418
S401
S421
S450
S451
S452
S453
S430
S420
S418-V
S431
Measuring section
DN8
DN15
DN20
DN25
DN32
DN40
DN50
DN65
DN80
Measuring range
Low
Standard
Max
High speed
Pipe inner diameter
Profile
Cut-off velocity
20
30
Calculator outputs
Max. flow
*
N/A
Sm3/h
Min. flow
N/A
Sm3/h
Max. velocity
N/A
Sm/s
Min. velocity
N/A
m/s
*
Please note: Due to manufacturing tolerances in the measuring sections, the actual inner diameter may vary slightly. As a result, the maximum flow range of each flow meter delivered can differ by up to ±1.5% from the calculated value. This variation is purely dimensional and does not affect the instrument's specified accuracy.
Medium and reference
Gas type:
Air
N2
Ar
CO2
He
H2
CH4
Propane
Butane
O2
N2O
Nat. gas
Steam
Others
Gas constant (J/kg*K)
Standard reference conditions
Norm reference conditions
Custom reference conditions
Reference temperature (℃)
Reference pressure (hPa):
Flow unit
m3/h
m3/min
cfm
kg/h
kg/min
kg/s
l/min
l/s
t/h
lb/h
Flow type
Flow
Act. flow
FAD
Dry air flow
Process conditions
Process pressure (bar(g))
Process temperature (℃)
Process humidity (%):
Inlet pressure (bar(a))
Inlet temperature (℃):
Inlet humidity (%):