Precision Infrared Calibrators

•Calibrated radiometrically for meaningful, consistent results.
•Accredited 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.
•Intuitive, easy-to-read display that indicates when temperature is stable.

Model : Fluke 4181

Q'ty :

Description
Specifications

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.

Specifications

Temperature range (@ 23 °C ambient, 0.95 emissivity)

4180	–15 °C to 120 °C
4181	35 °C to 500 °C

Display accuracy¹

4180	± 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
4181	± 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

4180	± 0.10 °C at –15 °C
	± 0.05 °C at 0 °C
	± 0.10 °C at 120 °C
4181	± 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

4180	± 0.15 °C at –15 °C
	± 0.10 °C at 0 °C
	± 0.25 °C at 120 °C
4181	± 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

4180	± 0.10 °C at -15 °C
	± 0.10 °C at 0 °C
	± 0.20 °C at 120 °C
4181	± 0.10 °C at 35 °C
	± 0.25 °C at 200 °C
	± 0.50 °C at 500 °C

Heating time

4180	15 min: –15 °C to 120 °C
	14 min: 23 °C to 120 °C
4181	20 min: 35 °C to 500 °C

Cooling time

4180	15 min: 120 °C to 23 °C
	20 min: 23 °C to –15 °C
4181	100 min: 500 °C to 35 °C
	40 min: 500 °C to 100 °C

Stabilization 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

4180	115 V ac (± 10%), 6.3 A,
	50/60 Hz, 630 W
	230 V ac (± 10%), 3.15 A,
	50/60 Hz, 630 W
4181	115 V ac (± 10%), 10 A,
	50/60 Hz, 1000 W
	230 V ac (± 10%), 5 A,
	50/60 Hz, 1000 W

Fuse(s)

4180	115 V ac 6.3 A, 250 V, slow blow
	230 V ac 3.15 A, 250 V, T
4181	115 V ac 10 A, 250 V, fast blow
	230 V ac 5 A, 250 V, F

Size (HxWxD)

4180	356 mm x 241 mm x 216 mm
	(14 in x 9.5 in x 8.5 in)
4181	356 mm x 241 mm x 216 mm
	(14 in x 9.5 in x 8.5 in)

Weight

4180	9.1 kg (20 lb)
4181	9.5 kg (21 lb)

Products

Precision Infrared Calibrators

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