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Introducing the HP E5574A Optical Loss Analyzer
Getting Started
General Instrument Settings
The general instrument settings for display and sensitivity affect all
subsequent measurements.
How to Check the General Instrument Settings
1
Press P
RESET
to check or change the general instrument settings.
You can change the number of digits to be displayed, the
measurement and display mode, and the sensitivity.
Number of Digits
The standard setting is four digits. It may be
desirable to reduce the number of digits, e.g. if the OLA is used for
screening examinations of optical components.
To change the setting press
N D
IGITS
.
Mode
The measurement and display mode affects all polarization
dependent measurements.
The standard setting is “refresh”: The display is updated
continuously.
You may change this setting to “average”: The instrument measures
one time interval, calculates the average and then stops. To repeat
the measurement, the
R
ESET
softkey has to be pressed.
When measuring polarization dependent loss, please note: The PDL
value is within the specified accuracy after the bargraph shown at
the bottom of the display is filled.
Figure 1-5
Preset Display
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