IR-518

Cavity Blackbody Source

IR-518: Cavity Blackbody Source

Cavity Blackbody Source

The IR-518 Radiation Source provides an accurate, stable source of infrared radiation of known flux and spectral distribution. It can be used as a standard radiation source for the calibration of other laboratory sources, detectors, or other infrared devices requiring calibration against a standard.

The 20° tapered - recessed - cone, surface emissivity, and cavity aspect ratio combine to provide blackbody radiation by multiple reflection, absorption and re-emission of its thermal energy. The thermal energy of the cavity is provided by a ceramic-sealed heater coil that uniformly heats the cavity cylinder to temperatures from 50° C to 1050° C. The IR-518 is covered by a one-year warranty.

Technical Data

Full Specifications

Temperature Range 50°C – 1050°C
Emittance (W/cm² / Total W) 17.36 W/cm² (14 W)
Wavelength Range 0.5 – 99 µm
Emissivity >0.99
Emitter Size 0.40" (10 mm) cavity diameter
Source Type Cavity
Temperature Resolution 0.1°C
Calibration Accuracy ±0.2°C to NIST Standard
Stability (Short / Long Term) ±0.1°C / ±0.2°C
Response Time <40 minutes (50–1000°C)
Temperature Sensors Embedded 0.01% Matched Type S
Control Type Active Multi-Band P.I.D.
Line Voltage 90–125 or 208–240 VAC 50–60 Hz
Power Requirements 100 W max
Standard Apertures 0.4" (10 mm)
Cable Length 8 ft (2.4 m)
Dimensions – Source 2.375" Diam × 3" Deep (60 × 76.2 mm)
Dimensions – Controller 5.1"H × 13.4"D × 12"W (130 × 340 × 304 mm)
Weight – Source 2.5 lbs
Weight – Controller 9 lbs (rack-mounted: 10 lbs)
Shipping Weight 1 box; 17 lbs
Remote Interface RS-232 or IEEE-488/GPIB
Warranty 1 year
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