Spectra Phorad® SC-830
Precision Luminance Measurement for Radiography Monitors, and NDT/QA
Control the lighting conditions under which radiographs and images are viewed and interpreted.
The new Spectra Phorad SC830 (successor to Model SC-810) represents over 85 years of Spectra innovation in light-measurement technology. Designed and manufactured in Burbank, California, the SC-830 delivers laboratory-grade precision in a compact, portable form for professional radiography imaging environments
Key Features & Benefits
• Ultra-Wide Dynamic Range: Measures luminance from 0.05 to 1,000,000 cd/m² (foot-lamberts or nits).
• High Precision & Repeatability: Advanced optical design with photopic V(λ) filters ensuring CIE 1931 accuracy.
• Compact, Rugged & User-Friendly: Hand-held, batterypowered design with intuitive touch interface.
• Cost-Effective QA Solution: Ideal for hospitals, diagnostic centers, and NDT/QA labs. Evaluating luminance, contrast and uniformity of medical displays.
• Compliant with International Standards: Meets or exceeds FDA, ACR, American Cancer Society, European Community, and ASTM E-1742/E1742M-18 guidelines. AAPM TG-18, AAP
Applications
• Medical Imaging / Radiography: Calibrate and verify luminance of diagnostic displays, film viewers, and collimator light fields.
• NDT / Industrial QA: Verify brightness uniformity in radiography displays used for nondestructive testing.
• Display & Projector Calibration: Measure low and high-brightness zones for accurate screen
calibration.
Technical Highlights
• Display: 2.8-inch TFT color touch screen (240 × 320 pixels)
• Sensor: Ultra-stable silicon photodiode with precision glass filters matching CIE 1931 V(λ) response
• Range: 0.05 – 1,000,000 cd/m² (or fL / nits)
• Accuracy: Within ±5% typical
• *Cosine Response: ≤ 2% (with cosine-corrected photodisc) Model SC -850
• Memory: Stores up to 10 readings with easy recall (RCL switch)
• Power: 3 × AA alkaline or rechargeable lithium cells / optional USB-C Spectra Power Bank
• Firmware: Upgradeable via USB-C; supports open-source firmware and data logging
• Construction: Durable hand-held housing with side Power and Measure switches
• Warranty: One-year limited warranty
• Made in USA | Specifications subject to change without notice.
Included Accessories
• Calibrated Luminance Probe (for display surface measurement)
• Quick-reference guide and online warranty registration
• (Optional for Model SC-850: Cosine-corrected Photodisc for illuminance in lux and foot-candles)
Why Spectra?
Since 1940, Spectra Cine Inc. has been trusted by cinematographers, radiologists, and engineers worldwide. From Academy Award-winning exposure meters to advanced photometric instrumentation, Spectra continues to define accuracy in light measurement.
Explore Other Spectra Phorad Photometer Models:
1. Spectra Phorad SC-850 Illuminance/Luminance Photometer–Measures ambient and display luminance in foot-candles/lux and cd/m2, foot-lamberts, or nits. Includes luminance probe and cosine-corrected diffuser.
2. Spectra Phorad SC-830 Luminance Photometer – Designed for precision display luminance measurement in cd/m2, foot-lamberts, or nits. Includes luminance probe.
3. Spectra Candela Phorad SC-800 Illuminance Photometer – Measures ambient light in foot-candles and lux.
All Spectra Phorad Photometers include a hard carrying case, NIST-traceable calibration certificate, 3x AA batteries and one-year limited warranty.
Contact us
Phone
818-954-9222
Website
www.spectracine.com
info@spectracine.com
Address
Spectra Cine, Inc. 3605 West Magnolia Boulevard Burbank, California 91505 USA