The tuning fork density meter uses the sound wave frequency signal source to excite the metal fork body, and makes the fork body vibrate freely at the centre frequency. This frequency is correlate with the density of the contact liquid, so the liquid can be measured by analysing the frequency. Density, and then temperature compensation can eliminate the temperature drift of the system; and the concentration can be calculated according to the relationship between the density and concentration of the corresponding liquid at a temperature of 20 ℃. This device integrates density, concentration and Baume degree, and has a variety of liquids to choose from.
1. Interface material: stainless steel
2. Cable material: anti-corrosion silicone rubber
3. Wetted parts: 316 stainless steel, special requirements are available
| Type of Fluids | Fluid Name | Molecular Formula |
| Acid | Hydrochloric Acid | HCI |
| Sulphuric Acid | H2SO4 | |
| Nitric Acid | HNO3 | |
| Phosphoric Acid | H3PO4 | |
| Alkali | Hydrogen Dioxide | NaOH |
| Potassium Hydroxide | KOH | |
| Calcium Hydroxide | Ca(OH)2 | |
| Others | Urea | (NH2)2CO |
| Sodium Hypochlorite | NaClO | |
| Hydrogen Peroxide | H2O2 |