JDHS LD-5H Laser Dust Meter, Range 0.001~ 10 mg/m ³
SE
LD-5H
JDHS LD-5H Laser dust meterSPEC
JDHS LD-5H Laser dust meterDetails
JDHS LD-5H Laser dust meterPacking list
- SKU
- NB017949
- Sampler
- In-Line, 40mm Filter
- Particle cutter
- PM10, PM5, PM2.5, PM1.0 and TSP to choose from
- show
- Dust Mass concentration (mg/m3), 1 minute results
- screen
- LCD display, Chinese character menu prompt
- Detection sensitivity
- 0.001mg/m³
- Repeatability Error
- ±2％
- Measurement Accuracy
- ±10%
- Measurement range
- 0.001~10 mg/m³
- Measurement time
- Standard time is 1 minute, with 0.1 minutes and manual transmission
- mode
- Public place monitoring model, atmospheric environment monitoring model, labor health model, can calculate the time Weighted average (TWA) and short time exposure allowable concentration (STEL)
- storage
- 99 sets of data can be recycled
- Timed sampling
- Measurement time (1~ 9999) seconds, shutdown time (0~9999) seconds, Warm-up time (0~10) seconds and sampling times (1~ 9999) can be set
- alarm
- Dust concentration exceeds the standard alarm function, the alarm concentration threshold can be set by yourself
- PC communication serial interface
- RS232
- Micro printer output interface
- Yes.
- Analog output interface
- 0—1V
- Digital output interface
- level signal
- Power Supply
- Ni-MH or lithium rechargeable battery pack (1.2V x 4) for 8 hours of continuous use; with 220VAC/12VDC power adapter
- Weight
- 2.4kg
- size
- 195mm*85mm*132mm
Introduction
LD-5H/L laser dust meter is a light scattering fast dust meter with laser micro light source. The particle concentration can be directly read, the result can be obtained in 1 minute, or the sampling time can be set arbitrarily according to the user's needs, and the built-in filter sampling device can collect the particulate matter for the analysis of its composition while continuously monitoring the dust concentration, and find the mass concentration conversion coefficient K value. Built-in filter device to avoid the influence of dust on the instrument parts, prolong the service life of the instrument, with self-calibration system, with air curtain shielding and clean air self-cleaning function, to ensure that the optical system is not polluted, to achieve automatic zero adjustment of software, with two-way communication with the computer function, through the PC for data processing, printing curves and tables.
The instrument has a variety of functions such as continuous monitoring of particulate matter concentration, timed sampling and alarm of dust concentration exceeding the standard. Equipped with PM10, PM5, PM2.5, PM1.0 and TSP cutters for selection, the instrument adopts a powerful suction pump, making it more suitable for the detection of PM10 inhalable particulate matter concentration at the exhaust port of central air conditioning equipped with a long sampling tube, and the monitoring of inhalable dust PM2.5. LD-5H/L laser dust meter has obtained the People's Republic of CHINA manufacturing measuring instrument license and measuring instrument type approval certificate!
Explanation of the principle of laser scattering dust meter
The laser beam is irradiated on the dusty gas stream, so that the beam produces scattered light, and the higher the dust concentration, the greater the scattered light intensity, so that the dust concentration is measured. The light scattering method determines the concentration of inhalable particulate matter in the air in public places, which has the advantages of rapidity, sensitivity, good stability, small size, light weight, no noise, easy operation, safety and reliability. On the one hand, the method requires a small amount of sample due to its high sensitivity, and can eliminate or simplify sample handling steps, so that sampling and analysis times can be greatly reduced, and on the other hand, the method does not require sample storage, thus avoiding or reducing all possible error factors in the analytical method.
