The JFC-II Dust Sampler Calibration Device is designed and manufactured according to MT 502-2020 “General Technical Conditions for Dust Sampler Calibration Device” and JJG(Particle)7-1996 “Dust Sampler Calibration Specification”. It is used to verify the flow rate and pressure stability of dust sampler. The device ensures stable flow, accurate measurement, and continuous working time. It features high-precision sensors to measure key indicators, equipped with a high-level computer, capable of automatic control, data storage, and provides output, print, query, and alarm functions for test reports. The test report meets the full requirements of JJG520-2005 “Dust Sampler Calibration Procedure” and has full calibration capability.

The device can be used by dust sampler manufacturers, inspection agencies, and mining companies for calibration, manufacturing, use, and post-maintenance of dust samplers, ensuring stability in operation, structural stability, flow stability, and operational advantages.

• All parameters are displayed digitally for easy and intuitive viewing.
• Equipped with a dual-channel high-precision flow meter, ensuring high accuracy and low loss.
• Capable of dual-flow cumulative function, capable of calibrating various flow rates.
• High precision in controlling large flow rates with a brushless DC motor, ensuring stable and smooth airflow.

• Flow Rate Measurement Range and Accuracy:
  • Measurement range: (0.5 ~ 20)L/min (15 ~ 100)L/min
  • Accuracy: ±1.0% FS
• Pressure Measurement Range and Accuracy:
  • Measurement range: (0 ~ 200) × 10Pa, (0 ~ -200) × 10Pa
  • Accuracy: ±1% FS
  • Measurement range: >200 × 10Pa ~ 2000 × 10Pa, >-200 × 10Pa ~ -2000 × 10Pa
  • Accuracy: ±1.6% FS
• Time Measurement Range and Accuracy:
  • 1-hour timing: ΔT=10 h
  • Timing deviation allowed within ±0.5 s
• Dimensions:620 mm × 580 mm × 1030 mm
• Weight:50 kg