2.7.4 - Internal Temperature Sensor [UE9 Datasheet] | LabJack
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2.7.4 - Internal Temperature Sensor [UE9 Datasheet]

The UE9 has an internal temperature sensor. Although this sensor measures the temperature inside the UE9, it has been calibrated to read ambient temperature. For accurate measurements the temperature of the entire UE9 must stabilize relative to the ambient temperature, which can take on the order of 1 hour. Best results will be obtained in still air in an environment with slowly changing ambient temperatures.

The internal temperature sensor is also affected by the operating speed of the UE9. With Control firmware V1.08 or higher, the UE9 is in high power mode by default, which is assumed by the LabJack UD driver.

With the UD driver, the internal temperature sensor is read by acquiring analog input channel 133 or 141, and returns degrees K.