Sorry to hear that you are having issues with your USB TC-08. If I may ask, which thermocouple are you using along with which universal connector? Does the temperature reading in the software change at all when you plug the thermocouple into the device? What does the thermocouple read when you have it at room temperature? Does it change at all when the thermocouple is exposed to heat? If the USB TC-08 is simply reading room temperature with the thermocouple connected, it sounds as though either the thermocouple is open, or there is a bad connection with the connector itself. With an open connection, the device will simply be operating off the cold junction compensation circuit, essentially you would just be reading the temperature of the USB TC-08 circuit board itself, which will be pretty close to what your room temperature is.
All of our devices ship from us calibrated to meet our advertised specifications. If you do need a certificate for documentation stating what the device reads/error percentages, this is an additional fee ($83). When you placed your order, did you also order the calibration certificate? If so, you should have received a certificate from us. We can resend you a copy of this certificate, on the back of the device itself there will be a calibration sticker with the calibration date and the certificate number. If you email this certificate number to email@example.com
we would be happy to provide you with another copy of the certificate.
If you did not order the device with the calibration certificate service, unfortunately we cannot generate a fresh certificate without receiving the device back and putting it through the test, as we do not retain the error percentage data on record on non-certified devices. If you need a RMA to send the unit back to be certified you can email firstname.lastname@example.org
in order to fulfill this service for you. We can also alternatively provide you with a certificate of conformity for you without needing to go through the process of sending the unit back. This certificate basically states for your documentation records that the device met advertised specifications at the time of shipment, but will not include the data points.
Let me know if you have any questions on any of this, or have any other questions. Thanks for your time Sukh and have a great day!