LD-5C microcomputer laser dust monitor one minute the result

LD-5C microcomputer laser dust monitor Model: LD-5C major technical indicators 1, the configuration 40mm filter line sampler; 2, with replaceable cutters particles PM10, PM5, PM2.5 and TSP for selection; 3, direct reading dust concentration (mg / m3), 1 mins results; 4, large-screen LCD display, Chinese menu; 5, the detection sensitivity: LD-5C (L) 0.01mg / m3; LD-5C (H) 0.001mg / m3. 6, repeatability error: ± 2% 7, measurement accuracy: ± 10% 8, measuring range: LD-5C (L) 0.01 ~ 100 mg / m3; LD-5C (H) 0.001 ~ 10 mg / m3. 9, measurement time: standard time of 1 minute, 0.1 points and has a manual transmission (which can be arbitrarily set the sampling time). 10, with public spaces monitoring mode, the atmospheric environment and labor health monitoring mode mode. Calculate the time-weighted average (TWA) and short-term exposure allowable concentration (STEL) and the like. 11, memory storage: 99 sets of data storage can be recycled. 12, the timing of sampling: measuring time can be set (1 to 9999) seconds, off time (0 ~ 9999) seconds, warm-up time (0-10) sec and sampling frequency (1 to 9999) times. 13, the dust concentration in excess of the alarm threshold setting: the largest concentration threshold: 65mg / m3; Measuring time: (1 ~ 9999) 14 seconds, the output interface: (1) PC machine communication Serial interface: RS232; (2) mini-printer output Interface; (3) Analog output interface: 0-1V; (4) digital output interface: Level signal. 15, power supply: Ni-MH rechargeable battery pack (1.2V x 4), 8 hours of continuous use; attached 220VAC / 12VDC power adapter. 16, Weight: 2.4kg. Description: to reach the international advanced level in the new century a new built-in filter line sampler microcomputer laser dust analyzer. In the continuous monitoring of dust concentration at the same time, you can collect particulate samples and achieve PM2.5, PM.5, PM10, TSP is compatible with a variety of cutters. The new built-in filter line sampler microcomputer laser dust monitor with the international advanced level in the new century, the continuous monitoring of dust concentration at the same time, the particles can be collected in order to analyze its composition and determine the mass concentration conversion coefficient K value. Can direct reading dust concentration (mg / m3), with a PM10, PM5, PM2.5 and TSP cutters available. The instrument uses a powerful suction pump, making it more suitable to be equipped with a longer sample tubes of central air-conditioning vent PM10 particle concentration detection may be inhaled. Specific use of premises as follows: 1. Determination applies to industrial and mining production site labor department dust concentration 2. Public health and epidemic prevention station monitoring of respirable 3. Environmental environmental monitoring department of atmospheric particulates detect particulate matter pollution investigation 4. Municipal monitoring smoke 5. aspects of scientific research, filter performance test field test 6. The site dust concentration measurement, vent dust concentration monitoring pharmaceutical manufacturing test 7. 8. 9. Occupational health and safety testing facility to clean the air of the place, precision instruments, test equipment dust detection electronics, food, medicine and other manufacturing process management 10. A variety of research, meteorology, public hygiene, industrial labor health engineering, air pollution research 11 building or place of blasting;. site venues 12. exposure monitoring indoor air quality testing equipment in line with industrial enterprises health standards (GBZ1-2002), harmful factors in the workplace exposure limit (GBZ2-2002) standard, the Ministry of Health WS / T206-2001 "public places air of respirable particulate matter ( PM10) assay - light scattering method "standard, the Ministry of Labour LD98-1996" dust in the air concentration of light scattering assay "standard as well as the Ministry of Railways TB / T2323-92" rail dust in workplace air to determine the relative mass concentration and mass concentration conversion method "and other industry standards, and the Ministry of Health Health Law Jian Fa [2003] No. 225 issued" public places, central air conditioning ventilation system health norms. " Main technical characteristics (1) designed to replace the particle cutter, to achieve a PM10, PM5, PM2. 5, TSP multiple particle separator cutter compatible. (2) filter sampler designed to achieve a continuous monitoring dust concentration compatible with the sampling filter, you can analyze the collected particulate matter and composition determined mass concentration conversion coefficient K value of the property. (3) using a laser light source, the mass concentration of particulate matter is not affected by the conversion factor of color. (4) The instrument can directly measure the mass concentration (mg / m3) in line with the Ministry of Health WS / T206-2001 standards. (5) The use of large-screen LCD display, to achieve the Chinese menu. (6) constant current controller designed to ensure a constant flow sampling, cutting the curve correctly. (7) has a built-in optical scattering board to ensure high stability. (8) has a special protective air curtain to avoid dust on the core component - contamination of the optical system, to ensure high reliability (9) The instrument zero automatically adjusted by computer software, improve measurement accuracy, convenience to users . (10) The instrument is designed sampling timing mechanism can be timed according to the set sampling time, time to start and shut down, and the resulting data can be recorded or imported mini-printer PC for data processing, leaving the instrument is adapted to the atmosphere of continuous monitoring of respirable particulate matter . (11) The instrument can be set alarm threshold concentrations exceeding the dust, when the dust exceeded the automatic audible alarm, or send the signal to the control center to monitor. (12) The instrument is designed analog output interface, when the evaluation of air purifiers, can draw its cleaning efficiency evaluation curve. (13) In addition to a dust monitor for indoor public places and for general measurement mode environment monitoring time sampling mode, the newly added labor health model, in this mode, according to industrial enterprises health standards (GBZ1-2002) and Workplace exposure limit harmful factors (GBZ2-2002) standard to calculate the time-weighted average (TWA) and short-term exposure allowable concentration (STEL).