MD301 Automatic Density Meter

Introduction​

The Automatic Density Meter is based on the internationally advanced oscillating Utube principle to rapidly measure liquid density and relative density. Only a small volume of sample (2–3 mL) is injected into the vibrating Utube; the instrument then calculates the density instantly from the shift in oscillation frequency.

Compared with traditional pycnometer, hydrometer, or balancebased density methods, it offers distinct advantages: minimal sample consumption, precise temperature control, fast and easy operation, high measurement accuracy, and excellent repeatability. It is suitable for routine density testing of freeflowing, virtually noncorrosive liquids.

Compliant Standards:

1.Chinese Pharmacopoeia 0601: Determination of Relative Density

2.JJF 1074-2001: Verification Regulation for Hydrometers/Density Meters

3.GB/T 611: General Method for Determination of Density of Chemical Reagents (Oscillating Liquid Density Meter Method)

4.GB/T 2013: Determination of Density of Liquid Petrochemical Products (U-tube Oscillating Method)

5.GB/T 11540: Determination of Relative Density of Fragrances (Automatic Electronic Density Meter)

6.GB/T 13531.4: General Test Methods for Cosmetics – Determination of Relative Density (Instrumental Method)

7.GB/T 21862.3: Determination of Density of Paints and Varnishes – Part 3: Oscillation Method

8.GB/T 22594: General Rules for Determination of Density of Water Treatment Agents (U-tube Oscillating Density Meter)

9.GB/T 29617: Test Method for Density, Relative Density, and API Gravity of Liquids Using Digital Density Meters

10.GB 5009.225: National Food Safety Standard – Determination of Ethanol Concentration in Alcoholic Beverages (Digital Density Meter Method)

11.SH/T 0604: Determination of Density of Crude Oil and Petroleum Products (U-tube Oscillating Method)

12.SN/T 2383: Determination of Density and Relative Density of Liquid Chemicals – Digital Density Meter Method

13.JF 1070: Rules for Metrological Inspection of Net Content of Prepackaged Commodities (Electronic Density Meter)

14.JJG 1058: Verification Regulation for Laboratory Oscillating Liquid Density Meters (Benchtop U-tube Density Meters)

15.Food Industry: GB/T 5009.2-2024 (Determination of Relative Density of Food); GB 5526-1985 (Inspection of Vegetable Oils – Determination of Specific Gravity); GB/T 10345-2007 (Methods of Analysis for Baijiu/Chinese Spirits); GB/T 4928-2008 (Methods of Analysis for Beer); GB/T GB/T 15038-2006 General analytical methods for wines and fruit wines; GB/T 5009.225-2023 Determination of ethanol concentration in alcoholic beverages

16.GB/T 29617-2013 Test method for density, relative density, and API gravity of liquids by digital density meter

17.GB/T 2013-2010 Determination of density for liquid petrochemical products (U-shaped vibrating tube method)

18.SH/T 0604-2000 Determination of density for crude oil and petroleum products (U-shaped vibrating tube method)

19.SN/T 2383-2009 Liquid chemical products—Determination of density and relative density—Digital density meter method

20.DB/T 1231-2010 Determination of density for chemical products—Intelligent liquid density meter method

21.ASTM D4052-11 Standard Test Method for Density, Relative Density, and API Gravity of Liquids by Digital Density Meter

22.ASTM D5002-13 Standard Test Method for Density and Relative Density of Crude Oils by Digital Density Analyzer

23.ASTM D3505-12e1 Standard Test Method for Density or Relative Density of Pure Liquid Chemicals

24.IP 559-2008 Determination of density of middle distillate fuel (Portable oscillating U-tube density meter method)

Features:

1. User Interface: Features an 8-inch color Android touchscreen; a high-definition camera enables intuitive and convenient video-based inspection.

2. Low Sample Volume: Requires only 2–3 ml of sample per measurement, conserving resources and reducing costs.

3. Measurement Modes: Includes built-in modes for density, relative density, API, Baumé, Brix, Plato, alcohol content (% vol), and more.

4. Temperature Control: Equipped with an integrated Peltier temperature control system to ensure precise density measurements.

5. Rapid Testing: Offers a choice between real-time density monitoring and high-precision measurement modes for user convenience.

6. Instrument Calibration: Calibration can be performed simply using dry air and distilled water.

7. Communication Interfaces: Features a built-in network module and multiple communication ports; data can be saved, exported, and printed.

8. User Management: Supports four levels of user access rights; includes data reporting, electronic signatures, and audit trail functions.

9. Built-in Thermal Printer: Conveniently prints test results; also supports external dot-matrix and label printers.

10. Built-in Air Pump: Dries the tubing and sensor to enhance testing accuracy.

Technical Parameters: