4180, 4181 Precision Infrared Calibrators

Accuracy and traceability for infrared measurements

Now it’s easy to increase your IR temperature measurement accuracy with the new 4180, 4181 Precision Infrared Calibrators from Fluke Calibration. These infrared temperature calibrators give more consistent, accurate and reliable calibrations because emissivity is radiometrically calibrated, and the target size minimizes size of source effect errors. In addition, these infrared calibrators simplify calibration because they uniquely compensate for errors caused by thermometer emissivity settings.

New accredited performance for point-and-shoot calibrations

  • 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.


Description

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 250 °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 250 °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)
Safety
 EN 61010-1:2001, CAN/CSA C22.2 No.
 61010.1-04

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 minimize emissivity related uncertainties.

4180, 4181 Precision Infrared Calibrators