TR-33 TR-34 TR-35 Trillium Rhino User's Manual - Frame Grabbers

42 Trillium User’s Manual
Environment
The camera and cables should be shielded from environmental noise sources for
best operation. The camera should also be kept as cool as possible. Specified
operating temperature is 0-50° C. The camera case is vented to allow for
convection cooling. Some environments may warrant a cooling fan.
At temperatures below 35°C, convection cooling has proven to be sufficient if a
reasonable airflow is maintained around the camera. For higher temperatures,
some minimal forced air circulation may be necessary. Requirements can be
determined by reading the camera's internal temperature using the
verify_temperature command after the camera has stabilized. For best
performance, keep the operating temperature below the de-rating curves.
De-rating curves
4.2 Optical Interface
i
For more
information on
lenses and
chromatic
aberration, see
DALSA’s
“Correcting
Chromatic
Aberration”
application note,
doc# 03-32-
00363.
In some applications requiring long integration times, an increase in Charged
Conversion Efficiency (CCE) by the IL-P3 sensors may result in large dark
offsets, caused by the amplification of temperature generated dark signal
integrated over long periods. This effect has an impact on the ability of the
camera to correctly calibrate itself. See Appendix E, for further information on
the de-rating curve.
Note: The de-rating curve applies only to applications requiring long integration
times, not necessarily low line rates. For example, a web inspection application
where line rates may vary considerably but integration time is limited to a short
duration will not experience a dark offset issue.
Lenses
For 1k resolutions, images may be obtained with high-quality F-mount lenses
(e.g. Nikon NIKKOR 55mm). At present, DALSA cannot recommend commercial
lenses for 2k resolutions.
03-32-10119-03 DALSA