Endress+Hauser Liquiline CM442R, Руководство по эксплуатации

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Operation Liquiline CM442R/CM444R/CM448R
70
Hauser
10.4 Outputs
10.4.1 Current outputs
Under Menu/Setup/General settings set the current range of 0 to 20 mA or 4 to 20 mA.
Possible applications
• For outputting a measured value to a process control system or an external recorder
• For outputting a manipulated variable to connected actuators
The current output curve is always linear.
Path: Menu/Setup/Outputs/Current output
Function Options Info
Current output Options
• On
• Off
Factory setting
Off
Use this function to activate or deactivate a variable
being output at the current output
Source of data Options
• None
• Connected inputs
Factory setting
None
The sources of data on offer depend on your device
version. all the sensors and controllers connected to
inputs are available for selection.
Measured value Options
• None
• Depends on theSource of
data
Factory setting
None
The measured value you can select depends on the
option selected under "Source of data".
The next table lists the measured values available depending on the data source.
Range lower value Selection range and factory
settings depend on:
"Measured value"
You can output the entire measuring range of the
"Measured value" or just some of it at the current output.
For this purpose, specify the upper and lower range
values in accordance with your requirements.
Range upper value
Hold behavior Options
• Freeze
• Fixed value
• None
Factory setting
Depends on the
channel:output
Freeze
The device freezes the last current value.
Fixed value
You define a fixed current value that is output at the
output.
None
A hold does not affect this current output.
Hold current
Hold behavior="Fixed value"
0.0 to 23.0 mA
Factory setting
22.0 mA
Specify which current should be output at this current
output in the hold state.