Scientech S310 Vector - Manual (Page 22)

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10. To Perform a Transfer Calibration:
You can transfer a calibration from a calorimeter to a Vector pyroelectric detector using the Transfer
Calibration function of the S310. To do this, please refer to the Group Settings for Vector Pyroelectric
Detectors, paragraph #G. You must follow the Group Settings steps to get into the Transfer Calibration
function. This function allows you to adjust the output sensitivity of your Vector pyroelectric detector in
combination with your S310 meter in order to match the average power reading from the S310 to that of a NIST
certified system. Typically a 50/50 beam splitter is used with the Vector pyroelectric detector to be calibrated
in one beam path and the NIST certified calorimeter in the other beam path.
11. HR Battery Installation:
A 9 volt alkaline battery comes installed with all HR Series detectors. Always select the OFF position of the
power switch when the detector is not in use to spare the lifetime of the battery. Replace the battery when the
low battery LED indicator lights up.
Figure 4
Refer to Figure 4. Remove the two slotted 4-40 binder head screws located on the underside of the detector.
Pull off the outer housing to expose the battery. Remove the used battery from the battery holder and snap in
the new battery. Slide the outer housing back in to place and secure with the screws.
Do not touch the delicate pyroelectric crystals in the HR Series detectors. They should only be cleaned with a
stream of clean air, nitrogen or CO2.
12. Set Electrical Time Constants for Model PHF02, PHF05 and PHF09:
The pulse width switch, located on the rear of the PHF02, PHF05, and PHF09 detectors, selects one of three
electrical time constants and should be set as follows:
S (Short Pulses):
Select for pulse durations of 5 µsec. or less. Repetition rates up to 4 kHZ can
be measured.
I (Intermediate Pulses): Select for pulse durations of 50 µsec. or less. Repetition rates of up to 400 HZ
can be measured.
L (Long Pulses):
Select for pulse durations of 250 µsec. or less. Repetition rates of up to 80 HZ
can be measured.
There are no pulse width settings on the P05 and P09 detectors which utilize a highly absorbing material on the
crystal. The pulse duration considerations merely function in the determination of damage thresholds.
Repetition rates up to 100 HZ using the P05 and 50 HZ using the P09 can be measured.