User Manual

3.10 About Setting Contents
69
This function periodically corrects for drift of the reference potential (about once
per second) to improve thermal characteristics in thermocouple mode.
A broken thermocouple wire can be detected during temperature measurement.
Normally when a thermocouple wire breaks, measured values exhibit random
instability.
3.10.8 Drift Correction Setting
Setting Item: [Drift]
Selections Description
Off
Drift correction is disabled. (Default setting)
On
Drift correction is enabled.
• Data refresh rate is about once per second when drift correction is enabled.
• Drift correction is available only while measuring. It does not affect the Level
Monitor on the Waveform and Channel Setting screens.
3.10.9 Disconnect (Burn-Out) Detection Setting
Setting Item: [Burn-Out]
Selections Description
Off
Broken wires are not detected.
On
Broken wires are detected.
When a broken wire is present, the waveform trace stays at the top
of the screen and the cursor value is displayed as “+OVER”.
Wire breakage is detected by sensing a miniscule current flow
(about 200 nA) through the thermocouple. If the thermocouple
wires are long or composed of a high-resistance material, set
[Burn-Out] to [Off] to avoid measurement errors.