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TH-2000PM Ambient Particulate Monitor
TH-2000PM Ambient Particulate Monitor

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1.measure the mass concentration of suspended particulate matter.
2.Continuous, non-stepwise measurement

 

Description

TH-2000PM Ambient Particulate Monitor was designed to continuously measure the mass concentration of suspended particulate matter in the atmosphere. Utilizing low-energy beta ray radiation absorption technology, controled by microcomputer system to monitor and manage data, this instrument can automatically continuous monitor. It’s monitoring means which is equivalent to classical weighting method not only reduces time of processing sample and pollution opportunity, and avoids personal equation, but also has no error accumulation, and do not need to calibrate and set zeroing. So it is new intelligent monitoring instrument.

 

Operation

 

A known volume of air is drawn through a sizeselective inlet, which can be configured to measure 

PM10, PM2.5 or TSP, and deposited onto the auto-advancing filter tape. The combined measurement of mass and air volume are used to obtain the mass concentration readings. 

 

Key Features

1. This instrument adopts beta rays absorption principle and can directly measure the particulate matter quality.

2.  Pneumatic flow is adopted the imported proportional valve with high precise constant-current.

3.  It can realize various sample collection ,test concentration and sample TSP, PM10, PM5, PM2.5.

4. Through the RS-485, TH-2000PM can provide upper computer with convenient, reliable data communication, analog output which makes the output way more flexible. Historical data are available through inquiring the interface display.

5. The monitoring results showed in mg/m3 can be directly read, stored, printed.

6. Photoelectric sensor and every mechanical components have corresponding independent        testing program and automatic detection.

7. The high performance embedded single chip microcontroller system with the features of  high stability, high reliability and strong real-time performance realizes the data acquisition and processing.

8.  Interface adopts man-machine mode.

9. High capacity of data storage, easy operation, convenient maintenance.

10. The sampling and measurement of this monitoring instrument are on the same channel.

11. Before and after sampling, the position of filter paper is not changed, which eliminating the effect of measurement result because of nonhomogeneity of filter paper and avoiding hysteresis error.

12. When this instrument is booted up, the filter paper move to the blank area automatically to be inspected. The sampling spots are no longer

Specifications

 

Operating Principle

         beta ray attenuation

Range 

          0-10,000μg/m3

Resolution

            1μg/m3

Lower Detection Limit

            2μg/m3

           Flow Rate 

          16.7L/min

Sampling Flow Precision

              ±3%

Sampling Flow Accuracy 

              ≤3%

         Beta Source

     14C (carbon -14), half-Life 5730 years

        Filter Tape

    fiber glass filter tape, 30mm x 15m roll

       Power Supply

100 –230 VAC, 50/60 Hz. Factory configured

    Power Consumption

        Less that 0.3 kw

         Weight

               20kg 

       Dimensions

41.5cm W × 30cm D × 31cm H 

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