Fluke 4181-256 Precision Infrared Calibrator

The Fluke 4181 Precision Infrared Calibrators for infrared thermometers and thermal imagers is fast, accurate, and easy to use. It comes with an accredited calibration from one of the world’s most trusted temperature calibration laboratories, sample calibration procedures for Fluke thermometers built right in and everything you need to get started making high-quality infrared thermometer calibrations. The Fluke 4181 may be used as a portable instrument or bench top temperature calibrator for calibrating point IR thermometers. The 4181 is small enough to use in the field, and accurate enough to use in the lab. Unique patent pending safety features make the instruments the safest IR calibrators available. The Block Temperature Indicator (Patent Pending) shows the user when the target temperature is above 50°C letting the user know when it is safe to place the target cover on the instrument and/or move it to a different location. The indicator remains illuminated when the instrument is energised and above 50°C, but with mains power removed, it will ??ash until the target temperature drops below 50°C. FEATURES Rapid heating and cooling. RS-232 interface capability. Eight set-point memory. Adjustable readout in °C or °F. Adjustable Emissivity. Calibrated radiometrically for meaningful, consistent results. Accurate, reliable performance from -15 °C to 500 °C. Intuitive, easy-to-read display that indicates when temperature is stable. Fluke 4181-256 Product Video Fluke 4181-256 Specifications Temperature range (@ 23 °C ambient, 0.95 emissivity) 35 °C to 500 °C. Display accuracy1 + 0.35 °C at 35 °C + 0.50 °C at 100 °C + 0.70 °C at 200 °C + 1.20 °C at 350 °C + 1.60 °C at 500 °C. Stability + 0.05 °C at 35 °C + 0.20 °C at 200 °C + 0.40 °C at 500 °C. Uniformity (5.0 in dia of center of target)2 + 0.10 °C at 35 °C + 0.50 °C at 200 °C + 1.00 °C at 500 °C. Uniformity (2.0 in dia of center of target)2 + 0.10 °C at 35 °C + 0.25 °C at 200 °C + 0.50 °C at 500 °C. Heating time 20 min: 35 °C to 500 °C. Cooling time 100 min: 500 °C to 35 °C 40 min: 500 °C to 100 °C. Stabilisation time 10 minutes. Nominal emissivity3 0.95. Thermometer emissivity compensation 0.9 to 1.0. Target diameter 152.4 mm (6 in). Computer interface RS-232. Power 115 V ac (+ 10%), 10 A, 50/60 Hz, 1000 W 230 V ac (+ 10%), 5 A, 50/60 Hz, 1000 W. Fuse(s) 115 V ac 10 A, 250 V, fast blow 230 V ac 5 A, 250 V, F. Safety EN 61010-1:2001, CAN/CSA C22.2 No. 61010.1-04. Dimensions (H x W x D) 356 mm x 241 mm x 216 mm (14 in x 9.5 in x 8.5 in). Weight 9.5 kg (21 lb). Fluke 4181 warranty One year. 1For 8 µm to 14 µm spectral band thermometers with emissivity set between 0.9 and 1.0 2The uniformity specification refers to how IR thermometers with different spot sizes both focused at the center of the targer will measure the same temperature. 3The target has a nominal emissivity of 0.95, however it is radiometrically calibrated to minimise emissivity related uncertainties.

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