Datasheet

03 | Keysight | Handheld Tools For Electronic, Electrical and Industrial Process Testing – Brochure
Features
– Identify abnormalities faster with four times more in-camera ne resolution
– Monitor temperature changes through image logging and temperature trending
capabilities
– Ability to focus on objects as close as 10 cm away
– Compact, lightweight, ergonomic
– High temperature range (up to 1200 °C)
– Easy-to-use customizable color palette
– Congurable quick access buttons to easily change settings with one hand
Specications of the U5850A series TrueIR thermal imagers
Parameter U5855A U5856A U5857A
Basic performance
Temperature measurement range
–20 ~ 350 °C –20 ~ 650 °C –20 ~ 1200 °C
Range 1 –20 to 120 °C –20 to 120 °C –20 to 120 °C
Range 2 0 to 350 °C 23 to 650 °C
1
0 to 350 °C
Range 3 N/A N/A 250 to 1200 °C
2
Thermal sensitivity
Range 1 0.07 °C (at 30 °C) 0.07 °C (at 30 °C) 0.07 °C (at 30 °C)
Range 2 0.1 °C (at 30 °C) 0.5 °C (at 30 °C) 0.1 °C (at 30 °C)
Range 3 N/A N/A 0.5 °C (at 250 °C)
Accuracy
3
± 2 °C or ± 2% (whichever is greater)
At 0 ~ 40 °C ambient temperature
Detector type Uncooled Focal Plane Array (α-Si)
Detector resolution 160 x 120 pixels
Fine resolution (in-camera)
320 x 240 (IR pixels)
Spectral range 8 to 14 μm
Frame rate 9 Hz
Field of view (FOV) 28° (H) × 21° (V)
Spatial resolution (IFOV) 3.1 mrad; 2.1, with ne resolution
Focal distance
10 cm to innity
Focus mechanism Manual focus
Image processing and enhancement
Correction parameters
Emissivity <ε>, reected temperature <RT>, object distance <OD>, ambient temperature <AT>,
relative humidity <Hum>, transmission <τ>
Emissivity correction
0.1 to 1.0
Predened emissivity table
Digital zoom
Zoom ratio: 4× continuous
Color palette
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
Camera mode IR image, visible image, picture in picture, blend
1. Lower limit temperature at 0 °C, Guaranteed lower temperature at 23 °C.
2. Lower limit temperature at 0 °C, Guaranteed lower temperature at 250 °C
3. Minimum distance with accuracy, 10 cm to 50 cm: ± 4 °C or ± 4%
Represents key specifications/features. For complete specifications, please refer to data sheet 5991-4297EN
U5855A TrueIR thermal imagers
ECN 2015 Impact Award Winner
Cooling and Thermal management
Thermal Imager
U5850 series TrueIR thermal imagers
Detect abnormalities sooner with higher resolution thermal images within the camera.
The U5850 series TrueIR thermal imagers give you an in-camera ne resolution of 320x240
pixels from a 160x120 pixels detector. Our solution provides clearer, sharper thermal images so
problems can be detected faster. Now you can easily capture, save and monitor temperature
changes overtime with a good 0.07 °C thermal sensitivity. What’s more, you can capture more
images without straining your hands with the ergonomically designed TrueIR thermal imager.