In order to meet the current needs of users for water quality sampling environments, and to meet the application of samplers in environmental monitoring, water conservancy and hydrology, municipal sewage discharge, scientific research institutions, health and epidemic prevention, public security drug enforcement, industrial park supervision and discharge fees, sponge cities, pipeline network monitoring, agricultural non-point source pollution, river and lake monitoring, ocean monitoring and other scenarios, Qiheng Environmental Protection has launched the HX-B multi field water quality automatic sampler, which can be applied to environments with narrow spaces and harsh conditions such as water vapor and corrosive gases.

The sampler has successively obtained the appearance design * * (ZL 2021 3 0743623.9), utility model * * (ZL 2022 2 3382366.9), and software copyright registration certificate. At the same time as obtaining the above qualification certificates, in order to verify the performance of the HX-B multi field water quality automatic sampler, it has been sent for inspection and passed the instrument protection level test of the Machinery Industry Instrument and Meter Comprehensive Technology Research Institute (verifying the instrument IP67 protection level) and the instrument function test of Qingdao Metrology Technology Research Institute (verifying the instrument sampling and operation functions).

Recently, the sampler has obtained the NIM-CS metrological evaluation certificate issued by the Chinese Academy of Metrology, indicating that all indicators of the HX-B multi domain water quality automatic sampler comply with the metrological evaluation implementation rules and have been recognized by the national metrology institution.

The China Institute of Metrology is the highest national metrology research institution and a statutory metrology technology institution. It is also the OIML-CS certificate issuing institution approved by the International Organization for Legal Metrology in China. The successive acquisition of NIM-CS measurement and evaluation certificates for Qiheng Environmental Protection's HX-A portable water quality automatic sampler, HX-F3 portable open channel flowmeter, and HX-B multi field water quality automatic sampler reflects the company's excellent product design and research capabilities, as well as the outstanding product performance of the company's products.