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The Thermogram

Fluke · segment S4

Fluke TiS55+ (27 Hz)

€€€€€

256 × 192 native thermal sensor, NETD 40 mK, 27 Hz.

    49 152 points measured
    Number of the sensor's measurement points, shown to the catalog's scale. The largest sensor in the database has 327 680 points.
    Published by the manufacturer

    Two frame rates in the catalog. Fluke lists each model in both 9 Hz and 27 Hz versions, under two separate model codes, with the same sensor and the same optics. Both versions are distributed in Europe. It's up to the buyer to check which one they're ordering, since retailers don't always make the frame rate obvious. Values used here: the 27 Hz version.

    Specifications

    Values come from manufacturer documentation unless otherwise noted in the sources at the bottom of the page. This device has not been physically tested.

    Identity
    BrandFluke
    ModelTiS55+ (27 Hz)
    SeriesTiS+
    Release year2020
    Commercial statuscurrent
    EAN codenot published by the manufacturer
    Manufacturer referenceFLK-TIS55+ 27HZ
    SegmentS4
    Sensor and image
    Native resolution, width (px)256
    Native resolution, height (px)192
    Native detector pixels49152
    Displayed resolution, width (px)not applicable
    Displayed resolution, height (px)not applicable
    Interpolation methodnone
    Detector typeuncooled microbolometer
    Detector materialnot published by the manufacturer
    Pixel pitch (µm)not published by the manufacturer
    Spectral band, min (µm)8
    Spectral band, max (µm)14
    NETD (mK)40
    NETD measurement conditionsnot published by the manufacturer
    Frame rate (Hz)27
    Optics
    Horizontal field of view (°)28
    Vertical field of view (°)20
    Advertised IFOV (mrad)1.91
    Recalculated IFOV (mrad)1.91
    Minimum focus distance (m)0.5
    Focusmanual
    Interchangeable lensesno
    Digital zoom (×)not published by the manufacturer
    Macro lens
    Availabilityno
    Referencenot applicable
    Working distance (mm)not applicable
    Spot size (µm)not applicable
    Smallest measurable area (µm)not applicable
    Accuracy with macro (°C)not applicable
    Range max with macro (°C)not applicable
    Measurement
    Range min (°C)-20
    Range max (°C)550
    Absolute accuracy (°C)2
    Relative accuracy (%)2
    Emissivity settingcontinuous
    Reflected temperature correctionyes
    Measurement modes2
    Simultaneous cursors6
    Full radiometryyes
    Visible channel
    Visible camera (MP)5
    Image fusionoverlay
    LED lightnot published by the manufacturer
    Laser pointernot published by the manufacturer
    Ergonomics and ruggedness
    Screen (inches)3.5
    Screen resolution640 × 480
    Touchscreenyes
    Weight (g)2270
    Dimensions (mm)267 × 101 × 145
    IP ratingIP54
    Drop resistance (m)2
    Operating temperature, min (°C)-10
    Operating temperature, max (°C)50
    Power
    Power typesystem battery
    Battery systemBatteries Fluke Ti (replaceables)
    Battery life (h)3.5
    Charging connectornot published by the manufacturer
    Storage and connectivity
    Internal memory (GB)not published by the manufacturer
    Memory cardSD
    Wi-Fiyes
    Bluetoothyes
    Wired interfaceUSB
    File formatsBMP and JPEG non-radiometric; .is2 fully radiometric
    Software
    PC softwareFluke Connect Desktop
    Free PC softwarenot published by the manufacturer
    Mobile appFluke Connect
    Report generationyes
    Cloud serviceyes
    Compliance
    Calibration certificate providednot published by the manufacturer
    Declared standardsIEC 61010-1 ; IEC 61326-1 ; IEC 60068-2-6 ; IEC 60068-2-27
    Warranty (months)24
    Support in Francenot published by the manufacturer

    Observations

    • A narrow 28° lens for 256 pixels. 1.91 mrad, a spatial resolution few devices at this level achieve. The trade-off is the narrowest field of view in the comparison — you need to step back to frame a whole facade.
    • A lighter version of the TiS75+. No dew-point calculation, no radiometric video recording, 3 cursors and 3 zones instead of 5.
    • Weight. 2.27 kg, double the heaviest of the other devices in this comparison and six times the HIKMICRO B20. Worth factoring in for a day of overhead readings.
    • On-screen transmission correction, in addition to emissivity and reflected temperature: a full correction chain, rare in this comparison.
    • QR-code tagging. Images are automatically sorted by piece of equipment.
    • Neither pixel pitch nor NETD measurement conditions are published.

    Sources