Common Procedures ML248xA / ML249xA
13000-00162 5-77
September 2005
Setting the Calibration Factor Applied to the Sensor
1. Press the Sensor hard key and then the Cal Factor soft key to display the [Cal
Factor] dialog.
2. Check that the sensor input displayed at the “Sensor” item in the dialog is correct.
The sensor input can be changed by pressing the A/B soft key.
3. Use the soft keys to select the source of the calibration factor to be used for the
selected sensor. Refer to the table below.
Setting Meaning
Frequency Correction data is read from the EEPROM in the sensor and applied
automatically to the measurement based on the user’s input
frequency.
Manual A user-entered value is used for the correction data.
V/GHz Correction data is read from the EEPROM in the sensor and applied
automatically to the measurement based on a frequency derived
from the voltage present on the rear panel input connector. This key
is unavailable if either measurement channel is using the external
voltage as its input configuration.
4. Press the down arrow on the numeric keypad to select the “Frequency” entry field.
This item is used to select the input signal frequency to be used when the calibration
factor source mode is set to either “Frequency” or “Manual”. If the “Source” item is
set to “V/GHz” jump to step 7 in this procedure.
5. Enter a frequency value using the Inc and Dec soft keys, or at the numeric keypad in
the normal manner.
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