Rapid Photo-Electric Tester

The Rapid Photo-Electric Brightness Test Meter is engineered with precision, comprising three core components: an electrical parameter measurement circuit, a photometric parameter measurement circuit, and a CPU system circuit. Voltage and current signals are amplified and directed to a high-speed A/D converter, subsequently transmitting the digital signal to the microprocessor. The input current signal from the brightness detector undergoes I/V conversion before reaching the A/D converter, with the digital conversion signal then processed by the microprocessor. This device efficiently processes photometric and electrical parameter data, enabling automatic range switching and concurrent data calculation and display.

• Four windows for simultaneous display of electrical and photometric parameters, minimizing reading errors.
• Incorporates built-in lamp holders for direct lamp installation and testing.
• True RMS values for measured electrical parameters.
• High V(λ) correction accuracy in the photodetector, compliant with national CLASS 1 brightness meter standards.
• Automatic measurement range adjustment based on test outcomes.
• Equipped with dual watchdogs for enhanced reliability, ensuring no system crashes in complex environments.

Specification:

• Electric parameter:
  • Measuring range: Voltage: 0-300V; Current: 0-0.5A/5A (Automatic range switching)
  • Input resistance: Voltage: greater than 1MΩ; Current: less than 0.01Ω
  • Frequency range: Base frequency 45Hz, band 5KHz
  • Accuracy specification: Voltage, Current, Power: ±(0.4% read value+1digit)
  • Power factor: ±(0.004+0.001/read value+1digit)
• Photometric parameter:
  • Measuring range of brightness: 0.001kcd/m2-999.9kcd/m2
  • Accuracy grade: CLASS 1
  • Range: Four-level ten-fold range automatic switching