Host: microcomputer control processing unit: storage and logic operation function Touch screen: record data and files, save values and results, store history Network function: communicate with LAN, connect with 4G, view data remotely 24 V DC power supply and power failure: 24 V DC power supply and power failure automatically save parameters, historical records and clock               Data collector: single chip data acquisition Data output function: Ethernet (standard), USB serial interface, RS232, RS485 (Modbus Communication Protocol) Signal status: calibration passive point, maintenance contact, remote / local contact, analysis start, analysis reset, analysis wait, analysis pause. Analog data output: the maximum load is 600 ohm, 4-20mA (current blocking) can provide two outputs Alarm function: machine fault alarm and data upper and lower limit alarm Environment: relative humidity 2% - 95% (non condensing) clean room,   10 – 30 ° C +/- 4 ° C deviation (50 ° F – 86 ° F +/- 7.2 ° F (deviation) Enclosure: protection grade IP65 (according to din40050) size (W 600 x l 450 x H 1500mm)   Shipment of 40kg, machine shell grounding device Pipeline: peristaltic pump, micro pump, diaphragm pump, injection pump, discharge, instrument air, discharge Cleaning calibration: demineralized purified water / distilled water is used for calibration, cleaning, dilution, etc