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U5856A Datasheet, PDF (5/9 Pages) Keysight Technologies – U5850 Series TrueIR Thermal Imagers
05 | Keysight | U5850 Series TrueIR Thermal Imagers – Data Sheet
Specification
Specifications are warranted in the temperature range of 0 to 40 °C and after 2 minutes of power up, unless otherwise noted.
Supplemental characteristics — which are not warranted, but are descriptions of performance — are determined either by design or
testing.
Performance specifications
Parameter
Basic performance
Temperature measurement range
Range 1:
Range 2:
Range 3:
Thermal sensitivity
Range 1:
Range 2:
Range 3:
Accuracy 1
Detector type
Detector resolution
Fine resolution (in-camera)
Spectral range
Frame rate
Field of view (FOV)
Spatial resolution (IFOV)
Focal distance
Focus mechanism
Image processing and enhancement
Correction parameters
Emissivity correction
Digital zoom
Color palette - Different color palette for
different models:
Camera mode
Measurements and alarm
Measurements
Color alarm
Alarm zones
Backgrounds
Specification
U5855A
U5856A
U5857A
–20 ~ 350 °C
–20 to 120 °C
0 to 350 °C
NA
–20 ~ 650 °C
-20 to 120 °C
23 to 650 °C*
NA
Note *: Lower limit temperature
at 0°C, Guaranteed lower
temperature at 23°C.
–20 ~ 1200 °C
–20 to 120 °C
0 to 350 °C
250 to 1200 °C **
Note **: Lower limit temperature
at 0°C, Guaranteed lower
temperature at 250°C
0.07 °C (at 30 °C)
0.07 °C (at 30 °C)
0.1 °C (at 30 °C)
0.5 °C (at 30 °C)
NA
NA
± 2 °C or ± 2% (whichever is greater)
At 0 ~ 40 °C ambient temperature
Uncooled focal plane array (α-Si)
160 × 120
320 × 240 (IR pixels)
8 to 14 μm
9 Hz
28 ° (H) × 21° (V)
3.1 mrad; 2.1 mrad (with fine resolution)
10 cm to infinity
Manual focus
0.07 °C (at 30 °C)
0.1 °C (at 30 °C)
0.5 °C (at 250 °C)
Emissivity <ε>, reflected temperature <RT>, object distance <OD>, ambient temperature <AT>,
relative humidity <Hum>, transmission <Æ®>
0.1 to 1.0
Predefined emissivity table
Zoom ratio: 4x continuous
Rainbow, Iron, Hot Iron, Iris,
Grayscale, Inverted Grayscale,
Custom
Rainbow, Lava, Iron, Hot Iron,
Iris, Olive, Medical, Grayscale,
Inverted Grayscale, Custom
Rainbow, Lava, Iron, Hot Iron,
Iris, Olive, Medical, Grayscale,
Inverted Grayscale, Custom
IR image, visible image, picture in picture, blend
Center spot, 3x movable spots, max/min tracking, delta temperature, 3x movable boxes
(with min/max/avg)
High/low temperature in all areas
Above/below/inside/outside
Hot white/Hot black
1.  Minimum distance with accuracy, 10 cm to 50 cm: ± 4 °C or ± 4%.