General Photonics PDLE-101, Руководство по эксплуатации

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PDL RANDOM VARIATION:
In this function, the PDLE-101 generates random PDL values within the range defined by
the selected minimum and maximum values. The dwell time at each value is determined
by the frequency selection. For example, if the frequency is 1 Hz, the instrument will
hold each value for 1 second before switching to the next.
When the function is first called, the instrument will be in parameter setting mode. The
random variation is disabled. . If Trigger mode is disabled, the screen will display the
variation type (RAN.WAVE), frequency, and upper and lower limit settings.
Trigger Disabled
→
RAN. WAVE F:_10.0 Hz
Max: 20.0 Min:_0.1dB
If Trigger mode is enabled, (see SETTINGS section), the word WAVE is replaced by
TRG, followed by either
↑ or ↓ . The direction of the arrow denotes whether the PDLE is
set to trigger on the rising or falling edge of the trigger pulse. In addition, the frequency
setting is replaced by the word “Trigger”, indicating that the PDL switching is triggered
by the external trigger pulses rather than occurring at a set frequency
Trigger Enabled
→
RAN. TRG ↑ F: Trigger
Max: 20.0 Min:_0.1dB
Use the
◄ ► keys to move the cursor position between digits or between parameters.
Use the ▲▼ keys to increment the selected digit.
The frequency range is 0.1 Hz to 100 Hz.
The range for maximum PDL is 0.2 to 20 dB.
The range for minimum PDL is 0.1 to 19.9 dB.
Note: The maximum PDL cannot be set lower than the minimum PDL. To set the range
to lower values than the current minimum PDL setting, reset the minimum value first,
then reset the maximum.
After setting the frequency (for nontriggered operation) and range (maximum and
minimum), press the ENTER key.
If trigger mode is disabled, random value generation at the set frequency will begin
immediately after the ENTER key is pressed. The cursor will move to the right bottom
corner of the screen and remain there while the operation is enabled. To stop the random
PDL generation and edit the operation parameters, press the ENTER key. The cursor will
move back to the parameter editing area.
Document #: GP-UM-PDLE-101-11 Page 16 of 61