ZMD series automatic electronic density meterAccording to the classical Archimedes principle, a force sensor based on the electromagnetic force balance principle with high sensitivity, precision, and repeatability can automatically, conveniently, accurately, and quickly test the specific gravity of solids and the density of liquids. By utilizing the weighing function of this instrument, it can also replace electronic scales with corresponding accuracy and weighing.

It is widely used to test the specific gravity of various solids such as rubber, plastics (particles or finished products), metal, powder metallurgy, glass, and the density of various liquids (aqueous solutions, oils, essence, spices, coatings, etc.). ZMD-3 and ZMD-4 can also measure objects in powder, paste, and gel forms.

The ZMD series automatic electronic density meter/specific gravity meter is designed specifically for testing the density or specific gravity of objects. Compared with density scales on the market that add a density measurement device to the electronic balance, it has the following obvious advantages:

① A regular density balance, the liquid used to test solid density, and the sample used to test liquid density are all placed on the scale pan of an electronic balance. If these liquids spill over, they will flow into the sensor under the scale pan, which can be repaired or scrapped. And our automatic electronic density meter is specially designed for measuring density. The sensor is placed on top of the scale pan, and even if the liquid is completely spilled, it has no effect on the sensor. In addition, the operating space is large and testing is very convenient.

② The use of large water tank glass cups effectively reduces the error caused by the rise of liquid on the suspension bar and improves the accuracy of testing.

③ The built-in standard program uses pure ethanol as a medium for measuring solid density, which is very useful for measuring solids with densities less than 1 and greater than 0.8, especially plastic particles. A regular density balance can only use water as a standard medium and is powerless for samples with a density less than 1. In addition, samples such as plastic particles can produce bubbles when placed in water, which can affect measurement accuracy, but placing them in ethanol can effectively eliminate bubbles. So, precisely because of this special feature, our density meter has a lot of users in industries such as rubber and plastic.

④ Our electronic automatic density meter adopts an advanced measuring device based on the electromagnetic force balance principle of high-precision electronic scales. Compared with the simple measuring device based on the strain gauge principle of commonly used low precision electronic scales on the market, it has the characteristics of high precision, high accuracy, high repeatability, easy operation, safety and durability. Compared to similar instruments that use strain gauge methods, it has an absolute advantage in technical performance.

Main features of the instrument:

1. The principle of electromagnetic force balance, with high sensitivity, high precision, and high repeatability; 2. Simple operation, large space, sturdy structure, convenient and durable; 3. Multi functional: capable of measuring the specific gravity of liquids, the density of solids, and the mass of objects; When testing solid density, the instrument will automatically calculate the final result without the need for manual conversion; |5. Measure various solid samples and liquid samples with a density greater than 0.8; 6. The shape of the tested solid sample varies depending on the model, and can be solid (block, particle, film), semi-solid (paste, gel), liquid, or powder; There are multiple options for liquid density testing standard components, which can meet the testing needs of liquids with certain viscosity and corrosive liquids. 8. STN wide viewing angle backlit LCD display; 9. Automatic zero position tracking; 9. Dynamic temperature compensation; 10. Automatic range calibration; 11. Full range tare removal; 12. Automatic fault diagnosis; 13. Overload alarm; 14. Overload protection; 15. RS232 interface output

It can be widely used in many industries such as electronics, rubber, plastics, wires and cables, automotive parts, ferrites, powder metallurgy, food, beverages, flavors and fragrances, cosmetics, and non-metallic materials.

The instrument fully complies with the following standards:

1. GB/T 611-2006 General Method for Density Determination of Chemical Reagents 2 GB/T 1463-2005 Test Method for Density and Relative Density of Fiber Reinforced Plastics 3 GB/T 11540-2008 Determination of Relative Density of Spices 4 GB1666-81 Determination of Specific Gravity of Plasticizers (Wechsler Balance Method) 5 GB/T 5009.2-2003 Determination of relative density of food 6 JJG 171-2004 Verification Regulations for Liquid Relative Density Balance 7 GB1033-1986 Plastic Density and Relative Density Test 8 GB4472-84 General rules for density and relative density testing of chemical products 9 GBT-1463-2005 Test Method for Density and Relative Density of Fiber Reinforced Plastics 10 GB-T5526-1985 Method for determination of specific gravity in vegetable oil inspection 11 JB-T 611-2006 General Method for Density Testing of Chemical Reagents and Other Related Standards.

Main technical parameters:

Main technical parameters: