54 Chapter 2
Installation and Setup
Calibrating System Components
You can also press the Zero&Cal Power Meter key to make the calibration at one
step (by connecting the Sensor to the Power Meter 50 MHz port).
NOTE If the Power Meter is moved, if several hours have elapsed since the last
calibration, or if the temperature has changed since the last calibration, you may
need to repeat the Power Meter Calibration. See Power Meter Guide.
When to Recalibrate
• When you change the current sensor to a different type (for example, from
N5532A/B Option 504 to N5532A/B Option 518), and a Power measurement is
selected, the Measuring Receiver displays the RECAL or UNCAL annunciator.
• When you change the current sensor to a same type, but a different one (for
example, from N5532A/B Option 504 to another N5532A/B Option 504), and a
Power measurement is selected, the Measuring Receiver DOES NOT recognize
the need for recalibration although a recalibration should be performed.
• If you are in doubt about whether the calibration factors match the power
sensor, you should recalibrate.
File Operations
This section describes file operation features for the Measuring Receiver.
File Operations for Power Sensor Calibration Factors
• To import the power sensor calibration factors and related information from the
.XML file on the floppy disk shipped with the power sensor.
See “Load Cal Factors” on page 52.
• To export the current power sensor calibration factors to a .XML file on a
floppy disk, so that the factors can be transferred to another PSA together with
the power sensor. This might take 5 to 10 minutes.
1. Press
File, Save, Type, Calibration Factor. Press Name, then enter the file
name you want to export. The best practice is to use the serial number of the
sensor module as the name.
2. Press
Save Now.
3. Press
File, Catalog Dir Select. Highlight C and press Dir Select.
4. Press
Type, Calibration Factor.
5. Press
Return, Copy, Dir To, Dir Select. Highlight A and press Dir Select.
6. Press
Dir From, Dir Select. Highlight C and press Dir Select.
7. Highlight CF Data.xml file. Press
Copy Now.
• To save the power sensor calibration factors to the Flash memory of PSA, once
the Load Cal Factor process is complete.
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