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Quick Troubleshooting for Temperature Profiler

Release time: 2026-03-09

Quick Troubleshooting for Temperature Profiler

(Furnace Temperature Tester)

1. Inaccurate temperature / Large deviation

  • Thermocouple type does not match instrument setting (K/J/T mismatch)

  • Poor contact, oxidation, or broken solder joint on thermocouple

  • Probe not tightly attached to product, measuring air instead

  • Instrument not calibrated for a long time

Solution: Check type → Re-fix probe → Calibrate

2. Erratic curve / Data dropouts

  • Damaged, shorted, or loose thermocouple wire

  • Loose connector, water or flux contamination

  • Damaged channel

Solution: Test another channel → Replace thermocouple → Dry connector

3. Instrument fails to power on

  • Dead battery or poor contact

  • Water damage or moisture

Solution: Charge/replace battery → Keep dry

4. Cannot start recording / No sampling

  • Start mode not set (temperature trigger / manual start)

  • Start temperature set too high

Solution: Use manual start → Lower start temperature

5. No data on PC / Cannot read data

  • Poor USB/data cable connection

  • Wrong instrument model selected in software

  • Data not fully recorded or ended abnormally

Solution: Reconnect cable → Restart software → Retest

6. Instrument overheats / Damaged inside furnace

  • Damaged thermal barrier box

  • Placed near hot air or high-temperature area

Solution: Check insulation → Replace thermal material

7. Individual channel shows 0 / No change

  • Thermocouple open circuit

  • Damaged channel socket

Solution: Replace probe → Test another channel

Quick Check Mnemonic

Inaccurate? Check probe.
Erratic? Check wiring.
No power? Check battery.
No data? Check settings.
Damaged? Check insulation.
Bad channel? Replace it.