What is the stated accuracy for the thermocouple (temperature measurement) in a 229 Water Matric Potential Sensor?
If all the errors were summed in a worst case scenario, the thermocouple accuracy would be ±0.5° C. For an extended discussion about thermocouple measurements, please refer to the “Thermocouple Measurements” section in the datalogger manual. • I have several 229-L probes installed at a site. They’ve been in operation for about 5 years. In the last 3 months, two of the sensors have begun returning very low positive and negative values for dT. The recorded temperature at the same depth seems OK, however. Is this an indication the heater is malfunctioning? Is there anything I can do to fix the probe without digging it back up? Is there possibly something else wrong that might be easier to fix? There have been no changes to the data logge Very low values for dT, especially negative values, do indicate that the 229 sensor is not heating during the measurement time. Because the sensors were working fine but suddenly stopped working without a change to the datalogger program, this indicates a
Related Questions
- What is the stated accuracy for the thermocouple (temperature measurement) in a 229 Water Matric Potential Sensor?
- What is the difference between ultrasonic temperature measurements and a thermocouple measurement?
- Why does the Vet-Temp sensor arm need to be closed before every temperature measurement cycle?
