Scientech S310 Vector - Manual (Page 25)

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7. To Select a Mode:
The modes available for the calorimeters are: Average Power (W AVG) or Energy (J).
A. To Measure Average Power (W AVG):
Note: The speed-up circuit (differentiator) in watts mode is controlled by software and was
adjusted at the factory to accommodate the type of calorimeter being used. You can
change the speed-up setting to your preference. For changing a Group setting, refer to the
Group Setting discussion in the previous section on Group Settings for Astral or Large
Aperture Calorimeters. The speed-up circuit is not active in AUTO range.
Note: The average power mode displays the average power (watts) of repetitively pulsed lasers or
continuous wave lasers.
i. Press the MODE button repeatedly until the “W AVG” annunciator appears.
ii. Press the SELECT button (or simply wait 3 seconds) and the S310 will automatically enter into its
operational state in the average power mode.
iii. Press the CANCEL button to zero the display.
iv. The average power will be displayed.
B. To Measure Energy (J):
Note: Calorimeters can only measure single shot energy pulses (time between pulses is dependent
on the calorimeter delay “CD” setting in the Group Setting for calorimeters [see previous
section on Group Settings for Astral or Large Aperture Calorimeters]). With the
calorimeter delay entered, the S310 will display the "trig" annunciator and the single pulse
energy after the first pulse is delivered. The "trig" annunciator will then disappear after
the calorimeter delay time has elapsed prompting you to fire another pulse. Do not fire
another pulse until the annunciator disappears. If you do, the S310 resets the time delay
and ignores the sequential pulse altogether.
i. Press the MODE button (repeatedly, if necessary) until the “J” annunciator appears in the display.
ii. Press the SELECT button (or simply wait 3 seconds) and the joules mode will automatically be
activated.
iii. The energy level of each laser pulse will be displayed on the LCD.
8. To Measure a Statistical Run of Single Shot Energy Pulses:
Note: Calorimeters can only measure single shot energy pulses (time between pulses is dependent
on the calorimeter delay “CD” setting in the Group Setting for calorimeters [see previous
section on Group Settings for Astral or Large Aperture Calorimeters]). With the
calorimeter delay entered, the S310 will display the "trig" annunciator and the single pulse
energy after the first pulse is delivered. The "trig" annunciator will then disappear after
the calorimeter delay time has elapsed prompting you to fire another pulse. Do not fire
another pulse until the annunciator disappears. If you do, the S310 resets the time delay
and ignores the sequential pulse altogether.
Note: Do not use AUTO range when making a statistical run.
Note: Do not go from the Average Power Mode to Stats since the range will be too high. Select
the range manually.
Note: Each time a new stats run begins, data from the previous run is lost. If statistical data is to
be saved, it must be done though the digital interface.
Note: To exit the statistical mode at any time, press the CANCEL button.