working principle:
The TH-303 dynamic diluter adopts advanced "digital mass flow controller" (MFC) to accurately control the flow of standard gas and dilution gas, thereby obtaining high-precision standard gas.

　　Scope of application:
Configure standard samples with different concentrations for calibration;
Provide standard samples for uninterrupted analysis;
Preparation of ppb level standard samples;

　　Instrument features:
Four gas sources (one dilution gas and three standard gases) supply gas, accurately configuring various standard gases with ppb level content;
Four channel MFC flow control;
Can be directly connected to analytical equipment to control the configuration of standard gases online;
Adopting touch screen input method, the operation is simple and fast.
It is possible to remotely control the flow rate and switch gas supply of each gas channel through the communication port, achieving unmanned operation.