Instrument specifications:
The instruments comply with national standards including GB50325-2020 "Code for Indoor Environmental Pollution Control of Civil Building Engineering," GB/T 18883-2022 "Standard for Indoor Air Quality," HJ1212-2021 "Method for Measurement of Radon in Ambient Air," EJ/T 1133-2001 "Procedure for Measurement of Radon in Water," and JJG 825-2013 "Regulation for Metrological Verification of Radon Detectors."
2. Testing Objects: Detection of radon in water, soil, and air (222Rn, 220Rn, thoron), as well as the detection of radon exhalation rate from soil and material surfaces.
3. Alpha Spectrometer: Real-time display of alpha spectral lines.
4. Detector: Gold Silicon Surface Barrier Semiconductor Detector – Alpha particle detection efficiency: ≥30% (optional PIPS detector), reliable and durable detector, insensitive to vibration and noise, low background reading.
5. Radon Collection Chamber: High-efficiency radon gas collection chamber with a large cavity and over 2000 volts of high-voltage static electricity.
6. Air Pump: Active suction, flow rate of 1L/min.
7. Verification: Generally, the annual drift is less than 1%.
8. Background Count: ≤0.03 cpm/Bq/m³
9. Detection Limit: ≤3.7 Bq/m³
10. Sensitivity: ≥0.1 CPM/pCi/L
11. Number of Channels: 512 Channels
12. Measurement Range: Air Radon: 3.7Bq/m³ - 500,000Bq/m³, Soil Radon: 10Bq/m³ - 925,000Bq/m³
13. Measurement Uncertainty: ≤10% (K=2)
14. Measurement Time: Can be set at will.
15. 5-inch Capacitive LCD Touch Screen: Full Chinese interface
16. Data Transmission: Instruments can be connected to external devices via Bluetooth communication or USB port for convenient data export.
17. Data Storage: Measurement results can be automatically saved, with a capacity to store 10,000 sets of measurement data. Results are stored in a report format for easy access, and can be retrieved or printed at any time.
18. Operation Modes: Each measurement object has a dedicated measurement mode, allowing for single and continuous measurements within each mode.
19. Data Calculation: Automatically calculates the concentration of a single measurement/average measurement result.
20. Built-in Power Source: 7.2 A/h lithium-ion battery, capable of operation for over 12 hours on a single full charge.
21. Printer: Bluetooth-enabled printer that can continuously print original measurement data.
22. Working Environment: Temperature -10℃ to 50℃, non-condensable relative humidity ≤90%; the instrument is equipped with a sensor for real-time monitoring and display of the working point's temperature and humidity.
23. Positioning: GPS Module, High-Precision Real-Time Positioning
24. External Power Supply: 220V AC power
25. Main Unit Dimensions: 330 (D) × 220 (W) × 200 (H) mm
26. Total Weight: 5Kg
Basic Instrument Configuration
1. KJD-3000R Radon Detector Main Unit (including a set of embedded software) 1 unit
2. 1 main power adapter
1. Soil Radon Testing Kit (includes gas sampling rod and steel rod)
4. Additional drying cylinder: 1 piece
5. 2 silicone rubber tubes (each 1 meter long)
6. Two desiccant bottles
1. 1 instruction manual for the instrument
8. 1 Instrumental Compliance Certificate
9. Bluetooth Printer No. 1
10. Printer Power Adapter
11. 5 reams of printing paper
12. One Radon Emission Rate Measurement Collecting Hood for Soil Surface
One carrying case for instrument accessories.
14. One Instrument Calibration Certificate issued by the China Academy of Metrology and Testing, valid for one year.
