ETT-4A constant temperature automatic continuous sampler Introduction: The instrument integrates two channels of atmospheric constant temperature and current sampling, and two channels of 24-hour constant temperature and current sampling, making it versatile and capable of sampling multiple gas components in the air. Suitable for routine monitoring and environmental evaluation of the atmosphere by relevant departments such as factories, mines, environmental protection, labor, health, scientific research, meteorology, etc. Applicable standards: JJG 956-2013 "Atmospheric Sampler" HJ/T 376-2007 "Technical Requirements and Testing Methods for 24-hour Constant Temperature Automatic Continuous Environmental Air Sampler" characteristic: 1. Small size, light weight, easy to carry; 2 host integrated design, automatic control of sampling flow; Three channels of atmospheric sampling, two channels of 24-hour sampling, electronic flow meter, constant current sampling, capable of completing both hourly and daily sampling modes; 4 multi-purpose machines, four sampling channels, can also be sampled simultaneously, and each channel can be individually controlled and started/stopped; 5 automatic constant temperature device, fast constant temperature time; 6 electronic semiconductor dual cooling and fast heating devices, with adjustable temperature, low cooling temperature of 3-5 degrees Celsius, high heating temperature of 65 degrees Celsius, and high temperature control accuracy; 7 imported brushless pumps with a continuous operating life of tens of thousands of hours; 8 built-in high-capacity lithium batteries, AC and DC power supply; 9. Electromagnetic compatibility anti-interference design and subwoofer silencing device; 10 has a real-time clock that can be set for timed sampling and multiple samples at equal intervals; 11. Automatic measurement of temperature and pressure, automatic calculation of standard sampling volume; 12. Power off protection function, automatic sampling for incoming calls; 13. Large size Chinese dot matrix LCD display screen, automatically adjusting the contrast of the LCD display screen according to the temperature, which can work normally at minus 30 degrees Celsius; 14. Automatic memory of sampled data; 15. Software calibration and password protection functions; 16. Automatic fault protection function; 17. Rainproof device design, allowing for normal sampling on rainy days; 18. Optional external Xuyu portable AC/DC power supply for field sampling. Technical parameters: Dual constant current sampling flow rate: (0.1-1) L/min, constant current at 0.20L/min Dual atmospheric sampling flow rate: (0.1-1.0) L/min Pre gauge pressure: (-20~0) kPa Sampling time: Any setting within 1 minute to 99 hours and 59 minutes Interval time: Any setting within 1 minute to 99 hours and 59 minutes Sampling frequency: 1-99 Atmospheric pressure: (70-130) kPa Pre calculation temperature: (-30~99) ℃ Constant temperature: 23 ℃ (default, others can be set) Heating temperature: 60-65 degrees Celsius Refrigeration temperature: When the ambient temperature is below 25 degrees Celsius, cool to -3-5 degrees Celsius External dimensions: (270 × two hundred and fifty × 350 )mm Overall weight: approximately 5.0kg Working power supply: AC220V ± 10%, 50Hz Power consumption: ＜ 80W
Introduction: The instrument integrates two channels of atmospheric constant temperature and current sampling, and two channels of 24-hour constant temperature and current sampling, making it versatile and capable of sampling multiple gas components in the air. Suitable for routine monitoring and environmental evaluation of the atmosphere by relevant departments such as factories, mines, environmental protection, labor, health, scientific research, meteorology, etc. Applicable standards: JJG 956-2013 "Atmospheric Sampler" HJ/T 376-2007 "Technical Requirements and Testing Methods for 24-hour Constant Temperature Automatic Continuous Environmental Air Sampler"
