Multi-Functional Meter:Combines TDS, EC, and PH testing with a built-in thermometer, making it a versatile tool for various water quality checks. Portable Design:Compact and lightweight, this meter fits easily in your pocket, ideal for on-the-go testing. ...
The HI70442P is for 25 sachets containing 20 mL of solution. 1,500 mg/L (ppm) TDS calibration solution Temperature chart of the actual ppm value at various temperatures printed on each bottle Convenient packaging for one time useHI70442P is a premium quality 1,500 mg/L (ppm) TDS ...
Since the relative density of water is related to its dissolved solids content, each increase of 0.0001 relative density at 15.6°C is approximately equal to 110 ppm. Of course, the sample must be cooled down to 15.6°C or a correction chart used(supplied with the hydrometer) for proper ...
关键词:水质检测 AT89S51程序编写 Abstract This desig n through the study and an alysis of the prin ciple of TDS (total dissolved solids) measureme nt, the desig n of a AT89S51 microc on troller as the core of the water testing instrument. This design by conductivity measurement circuit to...
Electrical Conductivity (EC) miliSiemens (mS) microSiemens (mS) 1.0 1000 1.5 1500 2.0 2000 2.5 2500 3.0 3000 Parts Per Million (PPM) NaCl Conversion 442 Conversion = 500 ppm 700 ppm = 750 ppm 1050 ppm = 1000 ppm 1400 ppm = 1250 ppm 1750 ppm = 1500 ppm 2100 ppm ...
Factory Calibrated : Our meters are calibrated with a 342 ppm NaCl solution. Includes a TDS chart sticker on the back of the meter that explains TDS values. Product pictures Specification General Type Water Quality Test Pen Brand Xiaomi
program for correlation calculation to \t / calculate the value of TDS.The design includes signal acquisition circuit, key circuit, temperature measurement circuit and digital tube display circuit.The water quality testing instrument has the advantages of simple structure, easy operation, low cost, ...