DA-Ra01 Real-time radon monitor for air, soil, water

DA-Ra01 Real-time radon monitor for air, soil, water

Product introduction

DA-Ra01 real-time radon monitor is a radon testing device that do real-time and micro pump automatic continuous sampling of radon gas in air, soil and water. It uses a micro pump combined with static electricity to collect radon decay radon progeny RaA As the measurement object, it meets the sampling and measurement method requirements of GB/T 14582-1993, and quantitatively measures the radon concentration in soil or air.

It has high sensitivity, easy operation, overcomes the inconvenience of manual sampling and external interference factors, and measures and gives results in real time.

The measurement time can be set within 1-120 minutes according to the level of radon.

It is the most automated instrument for soil radon detection in China. It meets the requirements of soil radon measurement in GB50325 "Code for Indoor Environmental Pollution Control of Civil Construction Engineering" and is widely used in civilian use.

Construction engineering, radioactive ore prospecting emanation measurement and water radon concentration determination for hydration ore prospecting can also be used for radon level investigation and radon prevention and radon reduction research in departments such as searching for groundwater sources, earthquake forecasting, environmental protection engineering, scientific research and teaching. It meets the verification requirements of JJG825-2013 "Radon Meter".

Features

• Built-in measuring chamber with a volume of 0.8L

• The pump suction electrostatic measurement method is adopted, and the sampling flow rate is controlled at about 1L/min by a micro vacuum pump system;

• Desiccant is used at the sampling point to eliminate the influence of humidity on the measurement;

• The detector adopts highly sensitive α-particle semiconductor devices, which can convert α-particle rays into electronic signals, collect and amplify electricity through static electricity.

The amplitude of the electronic signal is measured by means of a circuit, thereby identifying the energy of the incident alpha particle;

• The instrument can accurately measure Po-218 particles produced by indoor radon decay, with good energy resolution and high detection efficiency.

Technical parameters

Item	Specification
Detector	Semiconductor detector, insensitive to gamma
Display	Dot matrix liquid crystal
Measuring range	0～1000000Bq/m3
Uncertainty	<15% (when radon concentration >200Bq/m3)
Sensitivity	50cpm/(Bq/m3)
Micro pump flow rate	1L/min
Working mode sampling period	Continuous measurement mode: 26 minutes; Accurate mode: 5-99 minutes optional, fast can be set to 15 minutes.
Data interface	RS232 serial port, real-time data line, USB port to save data, the device can store 1000 pieces of data.
Working Environment	Temperature: -20～45℃; Relative Humidity: ≤95%
Dimensions	385mm×370mm×235mm
Weight	6.0kg
Power supply	Built-in 7.4V 10000mA lithium battery.