Scientech S200 Vector - Manual (Page 13)

Calibration
Calibration-MODELS S200, D200P
Press the MODE button. When the CAL annunciator appears press the SELECT button. A menu of V/mJ,
V/J, ATTEN will cycle. When calibrating for joulemeter sensor models P25, PHF25, SP25, SPHF25, P50,
PHF50, SP50, and SPHF50, press the SELECT button when the V/J annunciator appears. Use the COUNT
UP, COUNT DOWN buttons to enter into the display the V/J output sensitivity listed on the sensor ID tag.
Press the SELECT button. PRESS THE SAVE BUTTON TO SAVE THE CALIBRATION IN THE EPROM
MEMORY. To calibrate Molectron J3 series sensors, select the V/mJ annunciator and enter the V/mJ output
sensitivity as described above.
Calibration-Models D200PC, D200C
Use the same procedure as above when calibrating channel A of Model D200PC.
Channel B of the Model D200PC and both channels of Model D200C are calibrated as follows. The time
constant values listed on the serial tag of the Astral calorimeters, must be entered into memory. If not in
energy mode, enter into energy mode by pressing the MODE button. When the ENERGY annunciator
appears, press the SELECT button. Press the MODE button. A menu of MODE, CAL will cycle. Press the
SELECT button when the CAL annunciator appears. SET CAL will appear in the display. Use the COUNT
UP, COUNT DOWN buttons to enter into the display the time constant value listed on the calorimeter ID tag.
Press the SELECT button to enter the new value. PRESS THE SAVE BUTTON TO SAVE THE
CALIBRATION IN THE EPROM MEMORY.
Attenuation factors
Entering Attenuation Factors-Models S200, D200P, D200PC
When attenuators are used in conjunction with the joulemeter sensors, the attenuation factor may be entered
into the indicator memory to allow the actual (pre-attenuated) power/energy level to be displayed. To enter
attenuation factors, follow the same procedure as the V/J calibration except press the SELECT button when
the ATTEN annunciator appears in the display. Use the COUNT UP, COUNT DOWN buttons to enter the
desired attenuation factor into the display. For example, if you were using a 4X attenuator, you would enter
4.0 into the display. Press the SELECT button to enter the attenuation factor into memory. PRESS THE
SAVE BUTTON TO ENTER THE FACTOR INTO EPROM MEMORY. The attenuation calibration applies to
pyroelectric sensors only.
Transfer Calibration
The Vector Indicators' pyroelectric channels can be calibrated in the average power mode by setting the
power reading to match that of a calorimeter which has had its calibration certified at the National Institute of
Standards and Technology. A typical setup would be to direct the laser beam into a calibrated beam splitter.
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