Tech Tips

Why is the measured tip temperature lower than the set temperature?

Top page for “Why is the measured tip temperature lower than the set temperature?”
Check 1Are the tip, element cover, nut, etc. oxidized?
Check 2Is the tip shape changed?
Check 3Has the sensor of the thermometer deteriorated? (In the case of HAKKO-manufactured contact-type measuring instruments)
Check 4Are the batteries low on power?
Check 5Is the correct measurement method suitable for the measuring instrument being performed?

Check 3. Has the sensor of the thermometer deteriorated? (In the case of HAKKO-manufactured contact-type measuring instruments)

If the sensor is deteriorated due to corrosion by solder, the temperature may be shown lower in some cases. A sensor can last approx. 50 times in general; however, if lead-free solder is used, the sensor must be replaced more frequently.

*NOTE If a measuring instrument manufactured by another company is used, refer to its instruction manual.

Replace it with a new one before measuring the temperature. If the temperature is still shown lower, confirm the details in Checks 1, 2, 4 and 5.