Figure 6: View of the underside of the instrument with heat sink.
Instrument Warm-up Time
For optimal performance, the PSR Series instrument should initially be powered
on for a period of approximately 15 minutes prior to use. During this period, the
instrument should be placed in the environment where scanning will take place. This
period allows the detector temperatures and other electronics to stabilize before taking
spectral data.
Instrument Orientation
The PSR should be setup with its black external heat sink fins oriented as close
as possible to vertical. Also, outdoors the heat sink (bottom cover) should be oriented
away from the sun in order to maximize internal heat dissipation.
Laser (Tripod or Hand-held)
A sighting laser is used to aid in aligning the instrument to the target to be
measured. The sighting laser can be actuated by pressing the laser scan switch on the
top cover of the instrument.
CAUTION: Do NOT look into the sighting laser window or laser beam.
For more information see Appendix A: Laser Safety.
Field of View
A field of view diagram is provided with each instrument and shows the relative
position of the sighting laser spot and the active field of view for the instrument at the
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