Figure 37 Output Menu For Ma Output 1 - Vaisala PR-23 Series User Manual

• Select 5 CALIBRATION in the Main menu and enter password if necessary. Select 2
OUTPUTS in the Calibration menu. In the Outputs menu, select 5 mA OUTPUTS.
• Select the mA output, 1 or 2, to get to the Output menu (as shown in the following
figure) where the output can be configured.
The line at the bottom of the Output menu display indicates the current
configuration of the selected mA output, for example, in the following figure the mA
Output 1 has been configured to send the concentration reading of Sensor B.
Figure 37 Output menu for mA Output 1
• To change the sensor the selected output is assigned to, select 1 SENSOR in the Output
menu.
• To change output source for the selected output, select 2 SOURCE.
Selecting 1 NOT DEFINED 'turns off' the selected output.
• The 3 ZERO value sets the value when the signal is 4 mA. The default zero value is 0.00,
the unit depends on the source and display unit set for the sensor in question (and can
thus be for example 0 BRIX or 0 °F).
• The 4 SPAN sets the range, which is the value given when the signal is 20 mA.
Example: If your measurement unit is CONC% and you want to measure the range
15 ... 25 CONC%, first choose concentration as mA output source. Then set the zero
value at 15 and span at 10. This means that the output signal is 4 mA at 15 CONC% and
20 mA at 15+10=25 CONC%. To change this output to range 10 ... 30 CONC%, change
zero to 10 and span to 20 (10+20=30).
Chapter 7 – Configuration and calibration
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