1、 Execution standards

HJ 955-2018 "Determination of Fluoride in Environmental Air - Membrane Sampling/Fluoride Ion Selective Electrode Method"

HJ 691-2014 "Guidelines for Sampling Techniques of Semi volatile Organic Compounds in Environmental Air"

HJ 657-2013 "Determination of lead and other metallic elements in particulate matter of air and exhaust gas - Inductively coupled plasma mass spectrometry method"

HJ 618-2011 "Determination of PM10 and PM2.5 in ambient air by gravimetric method"

HJ 656-2013 Technical Specification for Manual Monitoring Method (Weight Method) of Environmental Air Particulate Matter (PM2.5)

HJ/T 374-2007 Technical Requirements and Testing Methods for Total Suspended Particle Samplers

HJ 93-2013 "Technical Requirements and Detection Methods for Particulate Matter (PM10 and PM2.5) Samplers in Environmental Air"

HJ 657-2013 "Determination of lead and other metallic elements in particulate matter of air and exhaust gas - Inductively coupled plasma mass spectrometry method"

JJG 943-2011 "Total Suspended Particle Sampler"

2、 Product Overview

Suitable for unmanned all-weather operation of collecting pollutants such as fluoride, heavy metals, particulate matter, etc. in the ambient air, meeting multiple flow points such as 16.7L, 50L, 100L, etc., achieving one machine for multiple purposes. It can be widely used in environmental monitoring, health and epidemic prevention, labor protection, scientific research institutions and other departments for various pollutant monitoring.

3、 Performance characteristics

1. Adopting imported brushless high load vacuum pump, it has high reliability for long-term continuous operation, low noise, long service life, and a fault free operation time of more than 20000 hours. It can overcome 20kPa resistance at a flow rate of 50L/min.

2. By combining imported electronic flow meters with microcomputers, it has a high degree of intelligence and is easy to use.

3. Automatic flow control, embedded software design, automatic calculation of sampling volume, automatic memory of sampling data, priority use for next boot, achieving one click sampling.

4. Small in size, light in weight, easy to carry, capable of collecting various particulate matter and automatically measuring atmospheric pressure.

5. Adopting imported wide temperature OLED display screen, it can work in ultra-low temperature environment.

6. Automatically save data during power outages, automatically restore sampling during incoming calls, deduct power outage time during the sampling process, and allow users to query power outage time.

7. Users can calibrate the instrument through the keyboard, and maintenance requires a password to enter, ensuring the security of instrument data and preventing easy modification errors. It also provides the function of restoring factory settings.

8. Data printing can be done by connecting to an optional micro printer via RS232, and it can also be exported through a USB flash drive with automatic capacity recognition.

9. Equipped with a dual membrane fluoride sampling head as standard, it meets the HJ955-2018 "Determination of Fluoride in Environmental Air - Membrane Sampling/Fluoride Ion Selective Electrode Method".

4、 Technical indicators