YOKOGAWA TB820D, User Manual, Page: 45 / 87

<5. FLXA402T sensor menu>
5-4
2nd Edition : June 09 , 2021-00 IM 12E01B30-02EN
l
Zero, Slope, Corr. factor, Zero shift value
It is recommended that you note the values of these items prior to performing calibration. When
calibration is executed, the data is overwritten.
l
Lightening IF
Shows a driving current value of the light source.
n
Sensor wellness
l
Light source diagnosis
The result shows how much the Light source condition has changed since the factory preset. The
more
n
appears in each gauge, the more sound the Light source is. A gauge is indicated only
when the setting of Sensor wellness for Light source is enabled. If the sensor wellness setting is
“disabled, a bar (----) is displayed.
l
Dried condition diagnosis
Shows the dryness inside the detection unit.
The next table shows some temperature ranges at which condensation may possibly form on the
window glass.
■ Water temperature
   
above 10°C
■
  
above 5°C to 10°C or below
■ ■
 
3°C or above to 5°C or below
■ ■ ■

above 0°C to 5°C or below
■ ■ ■ ■ 0°C or below
If the Dried condition diagnosis is “disabled, a bar (----) is displayed.
l
Replacement/Operating days
Manages desiccant replacement day or operating days of Light source and wiper.
To reset each data, go to dialog of Sensor wellness reset. Press reset, then the number of
operating days is reset to 0 but the replacement date is updated.
Only when the wellness setting is enabled, the result is displayed.
n
Predict. maintenance
l
Last calibrated at
Displays a date when the last auto calibration took place and the last calibration menu was
implemented.
l
Next sequence start
When next auto wash, next auto calibration are scheduled, the next date on schedule is
displayed.
If you set a date/time for the first-time operation, the date and time for the first time operation is
displayed. When you set Next auto calibration date to be updated automatically, the next date of
auto calibration date is automatically updated.