One of our client is facing problem with DT80. The application is temperature monitoring in Concrete. The client is using K type thermocouple for monitoring temperature.

TEST is showing PASS result but when the thermocouple is connected, the error message is shown on display REF ERROR. What could be the problem?

Good afternoon Sushil,

What is the temperature returned by the REFT command? And is your customer using an external reference point?

Cheers,
Roger

Good afternoon Roger,

Good to hear from you. Its an simple application. The client is connecting 12 nos. K type thermocouple in single ended configuration and with internal reference.

Bye - sushil

Good morning Sushil,

I realy need to know the value returned by the REFT command. This might help us diagnose the problem.

Cheers,
Roger

Dear Roger,

Similar problem faced by other client. Reference Temperature is showing 9999.9 deg C and on display its showing RefError.

Regards,
Sushil

Hi Sushil,

99999.9 is an over range error message. What type of temperature sensor are they using for the reference?

Please check the reference sensor is wired / working correctly. Also can I please see the code so we can check for programming issues?

Cheers,
Roger