Fluke Calibration 4180/4181 Precision IR Calibrators

Model#:Fluke 4180Part#:3109516UPC#:0 95969 44108 7
Fluke Calibration 4180/4181 Precision IR Calibrators is rated 3.0 out of 5 by 3.
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Key features

  • Accredited radiometric calibration included
  • Accurate, reliable performance from –15 °C to 500 °C
  • Large target size of 152 mm (6 in) is required for calibrating most thermometers.
  • Light instrument weight of 8.6 kg (19 lbs) makes it easy to lift and carry.

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Product overview: Fluke Calibration 4180/4181 Precision IR Calibrators

The 4180 Series of Precision InfraredCalibrators 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. This is the perfect solution for any infrared thermometer or thermal imager within its temperature range.

The 4180 Infrared Temperature Calibrator reaches temperatures from –15 °C to 120 °C and the 4181 Infrared Temperature Calibrator has a temperature range from 35 °C to 500 °C. Uniformity is important in infrared temperature calibration work because an infrared thermometer will “see” as much as the entire target when placed at the appropriate calibration distance.

In addition, with accuracies as good as ± 0.35 °C the 4180 Series can meet its specifications without additional emissivity-related corrections, leading to legitimate test uncertainty ratios (TUR) as good as 4:1.

Emissivity, blackbodies and graybodies

Most people associate a blackbody calibration source with calibrating infrared thermometers. Although the word blackbody specifically refers to an ideal surface that emits and absorbs electromagnetic radiation with the maximum amount of power possible at a given temperature, many calibrators with non-ideal surfaces are also referred to as "blackbody calibrators." While an ideal surface would have an emissivity equal to 1.00, many of these "blackbody calibrators" have an emissivity of approximately 0.95 (better described as a “graybody”). A true blackbody calibration source would usually be a long cavity with a narrow opening. Unfortunately the opening is usually too narrow to be useful for calibrating common infrared thermometers which require a large target size for an accurate calibration. The advantage of a true blackbody calibration source is that the emissivity is precisely known. Whereas traditional flat plate calibrators have emissivities with uncertainties too large for meaningful calibrations of most thermometers. That is why the 418X Precision Infrared Thermometers are radiometrically calibrated to correct for uncertainties caused by emissivity and heat loss at the surface of the "blackbody" calibration source.

 

Specifications: Fluke Calibration 4180/4181 Precision IR Calibrators

Specifications41804181
Temperature range (@ 23°C ambient, 0.95 emissivity)–15°C to 120°C 35°C to 500°C
Display accuracy1±0.40°C at –15°C
±0.40°C at 0°C
±0.50°C at 50°C
±0.50°C at 100°C
±0.55°C at 120°C
±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±0.10°C at –15°C
±0.05°C at 0°C
±0.10°C at 120°C
±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±0.15°C at –15°C
±0.10°C at 0°C
±0.25°C at 120°C
±0.10°C at 35°C
±0.50°C at 250°C
±1.00°C at 500°C
Uniformity (2.0 in dia of center of target)2±0.10°C at -15°C
±0.10°C at 0°C
±0.20°C at 120°C
±0.10°C at 35°C
±0.25°C at 250°C
±0.50°C at 500°C
Heating time15 min: –15°C to 120°C
14 min: 23°C to 120°C
45 min: 35⁰ C to 500⁰ C
Cooling time15 min: 120°C to 23°C
20 min: 23°C to –15°C
100 min: 500°C to 35°C
40 min: 500°C to 100°C
Stabilization time10 minutes10 minutes
Nominal emissivity30.950.95
Thermometer emissivity compensation0.9 to 1.00.9 to 1.0
Target diameter152.4 mm (6 in)152.4 mm (6 in)
Computer interfaceRS-232RS-232
Power115 V AC (±10%), 6.3 A,
50/60 Hz, 630 W
230 V AC (±10%), 3.15 A,
50/60 Hz, 630 W
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 6.3 A, 250 V, slow blow
230 V AC 3.15 A, 250 V, T
115 V AC 10 A, 250 V, fast blow
230 V AC 5 A, 250 V, F
Size (H x W x D)356 x 241 x 216 mm
(14 x 9.5 x 8.5 in)
356 x 241 x 216 mm
(14 x 9.5 x 8.5 in)
Weight9.1 kg (20 lb)9.5 kg (21 lb)
1. For 8 um to 14 um spectral band thermometers with emissivity set between 0.9 and 1.0
2. The uniformity specification refers to how IR thermometers with different spot sizes both focused at the center of the targer will measure the same temperature.
3. The target has a nominal emissivity of 0.95, however it is radiometrically calibrated to minimize emissivity related uncertainties.

Models: Fluke Calibration 4180/4181 Precision IR Calibrators

Fluke 4180
Fluke Calibration 4180 Precision IR Calibrators
IR Calibrator, 152 mm (6 in), -15°C to 120°C
Part#: 3109516
UPC#: 0 95969 44108 7

Includes:

  • 4180 IR calibrator
  • Report of calibration (NVLAP accredited)
  • Power cord
  • User’s guide
  • Documentation CD
  • Target cover
  • Serial cable
Fluke 4181
Fluke Calibration 4181 Precision IR Calibrators
IR Calibrator, 152 mm (6 in), 35°C to 500°C
Part#: 3109557
UPC#: 0 95969 44112 4

Includes:

  • 4181 IR calibrator
  • Report of calibration (NVLAP accredited)
  • Power cord
  • User’s guide
  • Documentation CD
  • Target cover
  • Serial cable
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Rated 4 out of 5 by from Reliable, fast and easy to use. I use the 4181 for thermography and I am very happy with it. Operation is clear and simple, heating is fast. The emissivity correction shall be considered with care (and disabled with the knowledge of the spectral emissivity). Calibration report may contain more precise data (accuracy, test results, spatial uniformity map). A very nice equipment.
Date published: 2021-10-08
Rated 1 out of 5 by from Not Happy. I am not happy with your IR Calibrator-4181 . The screen surface started becoming white which will not give result.
Date published: 2021-04-19
Rated 4 out of 5 by from Easy to use Purchased this to calibrate IR thermometers, and have been extremely happy with the performance and accuracy of it. The unit is very easy to use, and being portable is a plus.
Date published: 2016-12-07
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