Rack mounted radon monitoring instrument for earthquake precursor observation and GPS timing

BG2015RRack mounted radon detector

1Product Introduction

Rack mounted structure, suitable for installation in seismic instrument cabinets, meets the characteristics of radon observation without manual intervention, digitization, and continuous monitoring. measurement period1、10、30The60minOptional, equipped withGPSFunction, capable of automatic timing and automaticGPSlocation.

2Technical features

1)External detachable scintillation chamber sampler design, easy and economical instrument maintenance;

2)Color touch screen design, simple and convenient software operation;

3)The measurement range of radon concentration is wide, and the response speed is fast when the concentration changes;

4)Add a condenser tube design to the measurement air path, eliminating the need to replace desiccants;

5)Self starting function design, the instrument will automatically start the previous automatic measurement mode after restarting;

6)Independent air pump design, optional connection to measurement air circuit, with three working modes;

7)Independent sampling function design, which can be used for individual bubbling and sampling operations;

8)Embedded operating system, fully automatic control analysis, meeting the requirements of unmanned working environment;

9)GPSThe length of the Beidou antenna line20Meter, meeting the requirements of satellite timing and standardized installation of stations;

10)Suitable for digital gas radon observation and fault gas radon observation in earthquake precursor observation.

3Technical indicators

1)Detector:ZnS(Ag)Scintillation chamber detector (standard configuration)2a256mLScintillation chamber

2)Measuring range:0.01~5000Bq/L

3)Sensitivity:≥90cpm/(Bq/L)

4)Inherent background:≤15cpm(with automatic background deduction function)

5)Repeatability:≤10%Radon chamber concentration0.8Bq/LThe number of repeated measurements shall not be less than10Next time)

6)Relative inherent error:≤±15%(At least)3Maximum relative deviation of volume activity response at a radon concentration level

7)KRelative error of value:≤±5%（Kvalue3Month's offset

8)uniformity:≤10%Multiple devices under the same testing conditions3Parallel degree of monthly measured values

9)Self start mode: two states: on and off (when on, it will automatically measure after each startup)

10)Air pump operation: There are three modes: on, off, and cycling

11)Air pump flow rate: Yes0.5、1.0The1.5L/minThree flow rates to choose from

12)Data transmission: Ethernet transmission, communication protocol in accordance with the Technical Regulations of China Earthquake Precursor Network

13)Data storage:8GBMemory card, capable of storing at least continuous data10Annual observation data (minute value)

14)Sampling rate: Yes01、30、60Optional (corresponding)1minThe30minThe60minThe measurement cycle

15)Auxiliary observation: air pressure, temperature

16)GPSPositioning: automatic positioning, line length20mMushroom Head BeidouGPSantenna

17)Automatic timing:SNTPNetwork andGPSSatellite automatic timing

18)WebServer: can remotely restart devices, modify working parameters, and perform data queries and downloads

19)Display function: Display the dynamic curve of the current measurement value and observation value

20)Power supply methods: AC, DC, and lithium batteries(8Ah)Power supply, switch freely

21)Working environment: Temperature -10℃~45℃; Humidity≤90%No condensation

22)Display screen size:5.6Inch, color touchscreen operation;

23)Dimensions and weight:19”Standard Cabinet

4Product Selection Table