Measurement Computing USB-TC - Manual (Page 9)

USB-TC User's Guide Installing the USB-TC
9
If the LED turns off
If the LED is on but then turns off, the computer has lost communication with the USB-TC. To restore
communication, disconnect the USB cable from the computer, and then reconnect it. This should restore
communication, and the LED should turn back on.
Configuring the hardware
All hardware configuration options on the USB-TC are programmable with software. Use InstaCal to set the
thermocouple type for each channel pair. Configuration options are stored on the USB-TC 's isolated
microcontroller in EEPROM, which is non-volatile memory on the USB-TC module. Configuration options are
loaded on power up. The factory default configuration is Type J thermocouple.
Warm up
Allow the USB-TC to warm up for 30 minutes before taking measurements. This warm up time minimizes
thermal drift and achieves the specified rated accuracy of measurements.
Calibrating the hardware
The USB-TC is fully calibrated via InstaCal. Allow a 30 minute warm up before calibrating.