Scientech S200 Vector - Manual (Page 12)

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.
Figure 2
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.
Set Electrical Time Constants for Model PHF02, PHF05 and PHF09
The range 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 range 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.
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