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Fluke 4180/4181 — Precision infrared calibrators

Fluke 4180/4181 — Precision infrared calibrators

Fluke 4180 and 4181 provide a large temperature-controlled radiating surface for checking infrared thermometers and compatible thermal imagers. The 4180 covers −15 to 120 °C and the 4181 covers 35 to 500 °C. A 152. 4 mm target accommodates different optical spot sizes.
  • 4180 range: −15…+120 °C
  • 4181 range: +35…+500 °C
  • Range conditions: +23 °C ambient; nominal ε=0.95
  • 4180 display accuracy: −15/0 °C: ±0.40 °C; 50/100 °C: ±0.50 °C; 120 °C: ±0.55 °C
  • 4181 display accuracy: 35 °C: ±0.35 °C; 100 °C: ±0.50 °C; 200 °C: ±0.70 °C; 350 °C: ±1.20 °C; 500 °C: ±1.60 °C
  • Availability: On order
  • Manufacturer: Fluke
  • SKU: 01182
Price: on request
SpecificationsDescription

Description

Fluke 4180 and 4181 provide a large temperature-controlled radiating surface for checking infrared thermometers and compatible thermal imagers. The 4180 covers −15 to 120 °C and the 4181 covers 35 to 500 °C. A 152.4 mm target accommodates different optical spot sizes. Radiometric calibration accounts for emissivity-related uncertainty, with compensation for thermometer emissivity settings from 0.9 to 1.0. Accuracy, stability and uniformity vary with temperature and are listed at specific points. RS-232 supports automation. Select the model and 115 or 230 V power version when ordering.

Specifications

4180 range
−15…+120 °C
4181 range
+35…+500 °C
Range conditions
+23 °C ambient; nominal ε=0.95
4180 display accuracy
−15/0 °C: ±0.40 °C; 50/100 °C: ±0.50 °C; 120 °C: ±0.55 °C
4181 display accuracy
35 °C: ±0.35 °C; 100 °C: ±0.50 °C; 200 °C: ±0.70 °C; 350 °C: ±1.20 °C; 500 °C: ±1.60 °C
Accuracy applicability
8…14 µm spectral band; thermometer ε=0.9…1.0
4180 stability
−15 °C: ±0.10 °C; 0 °C: ±0.05 °C; 120 °C: ±0.10 °C
4181 stability
35 °C: ±0.05 °C; 200 °C: ±0.20 °C; 500 °C: ±0.40 °C
4180 uniformity, center Ø127 mm
−15 °C: ±0.15 °C; 0 °C: ±0.10 °C; 120 °C: ±0.25 °C
4181 uniformity, center Ø127 mm
35 °C: ±0.10 °C; 250 °C: ±0.50 °C; 500 °C: ±1.00 °C
Target diameter
152.4 mm (6″)
Nominal emissivity
0.95
Thermometer emissivity compensation
0.9…1.0
Typical heating time
4180: −15→120 °C, 15 min; 4181: 35→500 °C, 45 min
Typical cooling time
4180: 23→−15 °C, 20 min; 4181: 500→35 °C, 100 min
Stabilization time
10 min
Interface
RS-232
Power versions
115 / 230 V AC ±10%; 50/60 Hz; 4180: 630 W; 4181: 1000 W
Dimensions
356 × 241 × 216 mm
Weight
4180: 9.1 kg; 4181: 9.5 kg
Manufacturer part numbers
4180: 3109516; 4181: 3109557
Delivery
Selected calibrator, accredited report, power cord, target cover, serial cable, documentation

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