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Chapter 1
Introduction
15
Audible Alarm
To reduce the risk of camera damage, the PI-MAX3
camera is equipped with an audible
alarm in the camera head, activated when the intensity of light falling on the image
intensifier exceeds a preset threshold. While the alarm is sounding, the photocathode is
disabled. Immediately switch the
I.I.T.
switch on the back of the PI-MAX3 to the
OFF
position. Cover the detector window and only switch the
I.I.T.
switch to
ON
after the
illumination level has been lowered. If the alarm sounds continuously even when the
illumination level is adequately low, shut the system down and contact the factory for
guidance.
Note:
It is normal for the alarm to sound briefly when the system is turned on.
Caution
Discontinue operation and contact the factory at once if sporadic or continuous
unwarranted alarms occur. They may indicate intensifier damage or another situation that
requires immediate attention.
High Intensity Light Damage
Intensified CCD cameras such as the PI-MAX3,
when biased ON, can be irreparably
damaged if continuously exposed to light levels higher than twice the A/D saturation
level. Thus it is
critical
that you
not
establish conditions that could result in damage to
the intensifier. Although intensified cameras are less prone to damage from
background
light
when operated gated, they are at
significant risk
to damage from high-intensity light
sources like a laser. High intensity sources can damage the intensifier before the
protection circuits have time to respond, or even cause spot damage without the
protection circuits acting at all. If a sustained alarm indication occurs when the controller
is turned on, immediately switch the
I.I.T.
switch on the back of the PI-MAX3 to the
OFF
position. Cover the detector window and only switch the
I.I.T.
switch to
ON
after
the illumination level has been lowered.
If the alarm sounds continuously even when the illumination level is adequately low, shut
the system down and contact the factory for guidance.
Precautions
To prevent permanently damaging the system, please observe the following precautions:
Always switch off and unplug the PI-MAX3 power supply before changing your
system configuration in any way.
Whenever you turn the PI-MAX3 power supply, be sure to leave it OFF for at least
30 seconds before switching it back ON. If you switch it ON too soon, a fault logic
state is established that causes the overload alarm to sound continuously.
The CCD array is very sensitive to static electricity. Touching the CCD can destroy
it. Operations requiring contact with the device can only be performed at the factory.
Never operate the camera cooled without proper evacuation or backfill. This could
damage the CCD! Do not open the purge valve.
Never connect or disconnect any cable while the PI-MAX3 system is powered on.
Reconnecting a charged cable may damage the CCD.
Never prevent the free flow of air through the equipment by blocking the air vents.
WARNING!
Summary of Contents for PI-MAX 3 System
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