Table of Contents
Advertisement
5.5
4-20 mA Menu (Optional)
This menu will only appear if the optional 4-20 mA output board is installed. It is used to set the scale
of the 4-20 mA output. It contains the following menu selections: 4 mA Point, 20 mA Point, and
Calibrate.
4 mA Pt
Use the arrow keys to enter the process value, in ppm, that you want to correspond to a 4 mA output
from the controller.
20 mA Pt
Use the arrow keys to enter the process value, in ppm that you want to correspond to a 20 mA output
from the controller.
Calibrate
This menu is used to calibrate instruments connected to the mA output. The 4-20 mA output is
extremely accurate and stable and therefore will never need calibration. This feature allows other
devices to be calibrated at the 4 and 20 mA points. Press
Fixed 4 mA Out
The controller will output 4.00 mA. Adjust the chart recorder or data logger per its instruction so that
the process value displayed is what is expected for a 4.00 mA input.
Fixed 20 mA Out
As above, except that the controller will output 20.00 mA.
The design of the 4-20 mA output is such that it should never need calibration. If the mA signal is not
what it should be, call the factory for service.
Cl2
1.00ppm
4-20mA
12.4mA
EXIT
ENTER
4-20mA_1 12.4mA
Set 4mA Pt
4-20mA menu is only present if
4-20mA hardware is installed.
PREV.
NEXT
4-20mA_1 12.4mA
0
Set 20mA Pt
0
4-20 mA Menu
to start the calibration.
ENTER
4-20mA Menu
4-20mA_1 12.4mA
Calibrate 4-20mA
EXIT
ENTER
Calibrate 4-20mA
Fixed 4mA Output
ENTER
EXIT
Calibrate 4-20mA
Fixed 20mA Output
24
Advertisement
Table of Contents
