Yokogawa 2-Wire Dual Channel Transmitter/Analyzer FLXA21 - Manual (Page 169)

<14. CALIBRATION OF DO (Dissolved Oxygen)>
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IM 12A01A02-01E 5th Edition : Oct. 31, 2013-00
14.5 HOLD
The FLXA21 has a function to hold the mA output at a preset value (default: “Last”).
Use this menu to hold the output.
For the settings, see “n Configure Hold” on page 13-7.
During commissioning or quick setup, the output is automatically held.
Setting “Hold during Calibration/Wash” to “Disabled” deactivates the hold function during
calibration or washing.
Press to select Execute: HOLD and then choose Manual Hold ON or Manual Hold OFF.
This allows you to set up manual hold.
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Tag:FLXA21–DO
25.0
4mA 20mA Oxygen1
°C
mg/L
HOLD
Figure 14.6 Example of the display with the manual hold enabled
To cancel manual hold, press the lit HOLD section on the Main display.
14.6 Temporary output
If measurement cannot be made due to replacement of one of the sensors, assignment of mA
output can be temporarily changed from the currently setup sensor to the other sensor. This
feature is enabled only when two sensors are connected.
Press to select Execute: Temporary output and then choose the process parameter to be
assigned on the Temporary output screen.
When process parameter assignment has been modified, the indication at the upper left of the
screen changes to .
The feature is disabled the moment the screen returns to the Main display, and the setting
(process parameter in mA output setting) returns to the original condition.