Fluke ThermoView TV30 Series User Manual page 42

®
ThermoView TV30 Series
Users Manual, Rev. 1.0, May 2023
Focus
The camera is equipped with a motorized focus. The focus setting is controlled by Autofocus Type.
Autofocus Type
Manual Focus
Measurement Calculation
Emissivity
Transmissivity
Ambient Background
Temperature
Frame Rate
Max Image Transfer
Frame Rate
AOI Processing Rate
Shutter
The camera needs to run non-uniformity correction (NUC) procedure from time to time to maintain accurate
temperature measurements. For performing this, the camera is equipped with an internal lens shutter. When it
is the time to run NUC, shutter closes the detector's field of view and NUC coefficients are recalculated which
may take several seconds. When the shutter is closed, the camera does not measure temperatures of the scene
and the measurement device is on hold. It is necessary to ensure that NUC is not blocking the camera use
when temperature measurement is running, especially when object is in view for a short period of time.
Now
Configure...
42
<AOI> focus setting is applied to an exclusive AOI
<Full Image> focus setting is applied to the whole infrared image
<Manual> focus setting is controlled manually
Allows to drive motorized focus position by hand if Autofocus Type is set to
<Manual>. Displayed focus position number has no physical meaning.
changes the global emissivity. The global emissivity is used to correct the
temperature reading of the target. The target may read lower than its true
temperature, due to the target emissivity being less than 1.
there could be something in the optical path, such as a window that absorbs a
percentage of the infrared radiation before it gets to the camera. The transmission
value is an adequate correction factor to compensate that effect.
compensates the ambient background temperature of the surrounding area that
might be in the field of view. When the target's emissivity is less than 1, the
background temperature can interfere with measurement accuracy. The error is
reduced by accurately setting the background temperature. Sometimes it is not
possible to completely reduce background induced errors because there could be
various background objects of different temperatures reflecting off the target. The
best way to minimize these errors is to shield the target as best as possible from
stray radiation paths.
The rate at which image data will be updated on the webserver. Rate can be reduced
to save bandwidth.
changes the processing frame rate for all AOI's to the desired speed.
Immediately activates the shutter.
Opens a dialog box for the shutter settings.