... to perform on – line testing on various fluids or liquid mixture. It has been widely used in many industries such ... instant coffee, etc.·Chemical industry Caustic soda, acid, urea, sodium chloride, sodium hydroxide, etc.·Petrochemical Natural gas, coal gas, lubricating oil, ... 20 mA + Hart protocol·Power supply12 – 45 VDC·Digital display·Density range0 – 5g/cm3 ·Accuracy0.001 g/cm3·Resolution0.0005/cm3 ...