Yokogawa Button Operated DX2000 Manual do Utilizador descarregar pdf (Página 98)

3-2

IM 04L42B01-01E

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 > Mode

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 DX 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 DX 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 DX.

External Uses an external reference junction compensation function. When set to

External, Volt is displayed.

• RJC > Volt

The compensation voltage to be added to the input. Set the value in the range of –

20000 µV to 20000 µV.

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Yokogawa Button Operated DX2000 Manual do Utilizador Página 98