Yokogawa Value Series FX1000 - Manual (Page 75)

3-2 IM 04L21B01-01EN
3.2 Setting the Burnout Detection and the
Reference Junction Compensation of the
Thermocouple Input
Set the function that detects burnouts in the sensor for thermocouple input and 1-5V
input and the reference junction compensation method of the thermocouple.
Setup Screen
Press MENU (to switch to setting mode), hold down FUNC for 3 s (to switch to basic
setting mode), and select the Menu tab > Burnout, RJC.
Setup Items
• First-CH, Last-CH
Select the target channels.
• Burnout set
Detects thermocouple and 1-5V input sensor burnouts.
Settings Description
Off Does not detect burnouts in the sensor.
Up When the sensor burns out, the measured result is set to +over range. The
measured value displays “Burnout.”
For 1-5V input, the FX assumes that the sensor has burned out when the
measured value exceeds the scale upper limit by 10% of the scale width.
(Example: When the measured value is greater than 110 when the scale is from
0 to 100)
Down When the sensor burns out, the measured result is set to –over range. The
measured value displays “Burnout.”
For 1-5V input, the FX assumes that the sensor has burned out when the
measured value falls below the scale upper limit by 5% of the scale width.
(Example: When the measured value is less than –5 when the scale is from 0 to
100)
• RJC > Mode
Sets the reference junction compensation method of the thermocouple input. Select
Internal or External.
Settings Description
Internal Uses the reference junction compensation function of the FX.
External Uses an external reference junction compensation function. When set to
External, Volt is displayed.
• RJC > Volt
Settings Description
Volt The compensation voltage to be added to the input. Set the value in the range of
-20000 µV to 20000 µV.