LENS AND IMAGER FIELD OF VIEW
This table lists the horizontal FOV, vertical FOV and IFOV for lens.
Focal Length - 7.5mm
Horizontal FOV 21°
Vertical FOV - 21°
IFOV - 4.53mrad
IFOV (Instantaneous Field of View) is the smallest detail within the FOV that
can be detected or seen at a set distance. The unit is rad.
The formula is this:
• IFOV = ( Pixel Size )/( Lens focal length ).
• D:S theoretical ( = 1/IFOV theoretical) is the calculated spot size based on
the pixel size of the Thermal Imager detector array and lens focal length.
Example: If Thermal Imager uses 9mm lens, because the Pixel Size of
detector is 34um. Horizontal FOV is 17°, Vertical FOV is 17°, the IFOV is
34um/7.5mm = 4.53mrad; D:S theoretical ( = 1/IFOV theoretical) = 220:1
D:S measure = D:S theoretical/3 = 74:1
• D:S measure(= 1/IFOV measure) is the spot size needed to provide an
accurate temperature measure.
• Typically D:S measure is 2 to 3 times smaller than D:S theoretical, which
means the temperature measurement area of the target need to be 2 to 3
times larger than that determined by the calculated theoretical D:S.
MAINTENANCE
The thermal imaging camera has been calibrated in the factory and no
on-site calibration is required. Is it recommended that the thermal imaging
camera be re-calibrated on a yearly basis by a qualified testing laboratory.
COMPLIANCE
• CE
• Lithium battery is compliant with UN 38.3, UL 1642, and UL 2054
• Compliant with RoHS Directive 2011/65/EU and (EU) 2015/863
• Product is compliant with FCC 47 CFR Part 15B & 15C
•
Bluetooth
®
registration with SIG
PACKAGE CONTENTS
1. Yellow Jacket 52070F thermal imaging camera
2. Hard Carrying Case
3. Carrying Case handle
4. USB data transfer and charging cable
5. User manual
