1、 Execution standards：

HJ/T376-2007 "Technical Requirements and Testing Methods for 24-hour Constant Temperature Automatic Continuous Environmental Air Sampler"

HJ/T375-2007 "Technical Requirements and Testing Methods for Environmental Air Samplers"

JJG956-2013 Calibration Regulations for Atmospheric Samplers

GBZ/T 159-2017 Sampling Specification for Monitoring Hazardous Substances in Workplace Air

Scope of Application：

This instrument adopts the method of absorbing harmful gases with chemical solutions to collect various harmful gases in the environment, atmosphere, workplace, indoor and public places. It can be used for routine gas monitoring by environmental protection, labor hygiene, safety monitoring, military, scientific research institutes and other units.

3、 Main features：

1. The instrument adopts advanced embedded software and hardware system design, with a high degree of intelligence;

2. The sampling pump is an imported membrane pump with a stable sampling flow rate, ensuring 24-hour continuous sampling;

3. Dual channel constant temperature, keeping the solution absorbing gas at the set temperature;

4. Can set the sampling start time, sampling time, and sampling interval time;

5. The instrument can automatically measure the ambient atmospheric pressure and temperature;

6. Automatically accumulate sampling volume and convert it to standard sampling volume;

7. Equipped with data storage and query functions;

8. Equipped with power-off protection function;

9. Equipped with RS232/RS485 serial communication;

10. The instrument is small in size, light in weight, and convenient for field sampling;

11. Equipped with a fully Chinese touch screen operation interface, it is easy to use.

4、 Main parameters：