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FAQ -Error code list and troubleshooting
Err 2 - With extremely ambient temperature change

TroubleShooting : Place the thermometer under stable ambient temperature for 30 minutes before measurement

Err 3 - Ambient temperature is not in the operation range

TroubleShooting : Place the thermometer under proper and stable ambient temperature for 30 minutes before measurement

Err 5 - Memory lost may be damaged by EMF

TroubleShooting : Return to retailer

Err 6 - Floating point error

TroubleShooting : Reinstall the battery, if error message remain, please return to retailer

Err 7 - Electronic circuit out of order

TroubleShooting : Reinstall the battery, if error message remain, please return to retailer

Err 9 - Reinstall the battery, if error message remain, please return to retailer

TroubleShooting : Return to retailer

What error code "ER5" stands for? How we do?

We found the data in the EEPROM had been lost. RD had improved this problem by adding some protecting elements. There are many factors may cause the memory lost, one of them is ESD and/or EOS.
For those customers who purchasing TN4xxLC, please inform customer, while they are using the external thermocouple probe, please don't try to measure the temperature of high voltage or high ESD risk parts.

Founded in July 2000, ZyTemp belongs to world-class Infrared Technology-oriented thermometer manufacturer - Radiant Innovation Inc. and become a premier provider of infrared temperature measurement devices. Originally started from a professional team of engineers specializing in infrared thermometry, this company is now emerging as worldwide well-known manufacturer of infrared thermometers (IRT).

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