Using U8480 Series USB Thermocouple Sensors 8
Keysight N1913/1914A User’s Guide 211
Measurement Accuracy
Thermocouple sensors have small errors in their response over frequency. The
response of each sensor is measured during manufacture to determine correction
factors. With the U8480 Series thermocouple sensors, correction factors are
stored in a 3 MB Flash memory and are downloaded to the power meter
automatically.
Using calibration factors enables improved measurement accuracy. This section
describes making average power measurements using the U8480 Series
thermocouple sensors.
Making a measurement requires the following steps:
1 Zero the power meter/power sensor combination.
2 Set the frequency for the signal you want to measure.
3 Make the measurement.
Procedure
1 Zero the power meter/thermocouple sensor combination.
2 Ensure the power sensor is disconnected from any signal source.
3 Press and the channel softkey. Select the required channel. Now,
set the frequency of the signal you want to measure. The thermocouple meter
automatically selects the appropriate calibration factor.
4 Press . On dual channel meters select the required channel.
5 Use the and keys to highlight the Frequency value field and press
to display the Frequency pop-up. Use the numeric keypad to enter the
required value in the Frequency pop-up window.
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