LB9140 Mobile α β Aerosol Continuous Monitor

Mobile α β Aerosol Continuous Monitor

Product introduction           

LB9140 is used for continuous measurement of air αβ radioactive aerosol, the main components are:

• Sampling section: aerosol sampling

• Detector: real-time measurement of αβ radioactive aerosol level, α and β activities are measured separately

• Protective shell: Aluminum alloy protective shell used to protect the sampling part, the protection grade reaches IP68. The front panel features a plexiglass window for monitoring filter usage.

• Filter paper feeding speed can be adjusted in 4 levels: 5/10/12.5/15mm/h

• Suction pump: low noise, easy maintenance and long service life. At a standard flow rate of 3m3/h, the maximum noise level at a distance of 1 meter is 60 decibels. Optional flow meter.

Self-test and alarm

The monitor is equipped with a self-test program to monitor the operating status of the instrument in real time.

• Pump status monitoring: When the pump flow rate is lower than the set value or the pump stops running, a trigger signal is given to the electronic system, and a log of the error report is generated.

• Sampling part monitoring: The instrument can monitor the use of filter paper in real time. When the filter paper is only 5 meters long, a "Pre-paper end" message is generated; when the filter paper

Generates "Paper fail" message when empty or filter breaks; both conditions trigger red LED on control panel

• Detector failure: When the counting rate is lower than the preset value, a failure signal will be triggered, and the indicator light will go out to prompt

• Pre-alarm: The user can define the pre-alarm value of α and β separately, which is used to prompt the abnormal increase of radiation, and the red indicator light will prompt

• Alarm: User can define alarm values for α and β respectively. The alarm supports pumping volume alarm, discharge rate alarm and activity alarm (Bq/m3; Bq/h;

Bq/day, week, month). Sound and light dual alarm mode

• Alarm light test: one-key test signal input and output