OPERATION
6
81
OPTISWIRL 4200
www.krohne.com
02/2022 - 4003930810 - MA OPTISWIRL4200 R10 en
Function
Setting / Description
C1 Process
C1.1 Fluid
Select: Liquid / Steam / Gas / Wet Gas / Gas Mixture
Appropriate media can be selected in menu C1.2 dependent on selected fluid type.
C1.2 Medium
If fluid = "Liquid":
Water / Custom
If fluid = "Steam":
Saturated Steam / Superheated Steam / Custom
If fluid is "Gas" or "Wet Gas" (for details refer to
Gas options for gas measurement on
page 63)
C1.3 Gas
This menu is available if fluid = "Wet Gas" or "Gas Mixture", or if medium = "Air" and
meter type = "Heat & Dens. & FAD".
Here the gas composition or gas properties can be defined.
C1.3.1 Gas Mixture
This menu is available for fluid = "Gas Mixture".
Enter gas mixture as percentage share of gas options (for details refer to
Gas options
for gas measurement on page 63)
C1.3.2 Relative Humidity
This menu is available if fluid = "Wet Gas". Enter: 0…100%
C1.3.3 Inlet Temperature
The menus C1.3.3 to C1.3.9 are part of the FAD functionalities. They are available, if
fluid = "Gas", medium = "Air" and FAD functionality is included in the meter type option.
Enter ambient temperature of the compressor inlet side in selected temperature unit
(C6.5.19).
C1.3.4 Atm. Pressure
Enter ambient pressure of the compressor inlet side as value in selected pressure unit
(C6.5.17).
C1.3.5 Filter Pressure Drop
Enter pressure drop of compressor filter in selected pressure unit (C6.5.17).
C1.3.6 Inlet Rel. Humidity
Enter relative air humidity of the compressor inlet side as 0…100%.
C1.3.7 Outlet Rel. Humidity
Enter relative air humidity of the compressor outlet side as 0…100%.
C1.3.8 Compressor RPM
Enter compressor revolutions per minute.
C1.3.9 Rated Compr. RPM
Enter rated compressor revolutions per minute.
C1.4 Saturated Steam
This menu is available, if fluid = "Steam" and medium = "Saturated Steam".
C1.4.1 Dry Factor
Enter 0.85...1
C1.5 Current Input
The current input is a passive 2-wire 4...20 mA input. An external power supply is
required (for details refer to
Current input on page 46).
C1.5.1 Function
Select "On" or "Off" to enable or disable the current input.
C1.5.2 Current Input Meas.
If current input function (C1.5.1) = "On", the following selection is available:
Pressure External / Temperature External
C1.5.3 0% Range / 4mA
0% value = 4 mA for pressure value or temperature value
C1.5.4 100% Range / 20mA
100% value = 20 mA for pressure value or temperature value
C1.6 Temp. Sensor
C1.6.1 Temp. Source1
Select: Not available / Internal / External / External HART / Sat. Steam Temp.
(Saturated steam temperature only available for meter types "Heat & Dens. by Pres."
and "Heat & Dens. & FAD")
Temperature source 1 and 2 must be different.
If the current input is set to "Temperature External", either "Temp. Source1" or "Temp.
Source2" may be set to "External". If the current input is set "Pressure External", the
"External" option is not available to both temperature source 1 and 2.
C1.6.2 Temp. Source2
C1.7 Pressure Sensor
C1.7.1 Pressure Source
Select: Not Available / Internal / External / External HART
(Pressure sensor support only available for meter types "Heat & Dens. by Pres." and
"Heat & Dens. & FAD")
C1.8 Time Constant
Enter: 0...100 s
C1.9 Low Flow Cutoff
Sets low flow values to "0". Enter value for low flow cutoff in volumetric flow unit.
