Digital Density Meter DA-840

Digital Density Meter DA-840 Testing Standards:

GB/T 611-2021 Chemical Reagents - General Method for Determination of Density (Vibrating Liquid Density Meter Method).
GB/T 2013-2010 Method for Determination of Density of Liquid Petroleum Chemical Products (U-shaped Vibrating Tube Method).
GB/T 11540-2008 Fragrance/Perfume - Determination of Relative Density (Automatic Electronic Density Meter).
GB/T 13531.4-2013 General Test Methods for Cosmetics - Determination of Relative Density (Instrumental Method).
GB/T 21862.3-2008 Paints and Varnishes - Determination of Density - Part 3: Oscillation Method.
GB/T 22594-2018 Water Treatment Chemicals - General Rules for Determination of Density (U-shaped Vibrating Tube Density Meter).
GB/T 29617-2013 Test Method for Determination of Liquid Density, Relative Density and API Gravity by Digital Density Meter.
GB 5009.225-2023 National Food Safety Standard - Determination of Ethanol Concentration in Wines and Edible Alcohols (U-shaped Oscillating Tube Digital Density Meter Method).
HG/T 4067-2015 Lithium Hexafluorophosphate Electrolyte (Density Meter Method).
SH/T 0604-2000 Crude Petroleum and Petroleum Products - Determination of Density (U-shaped Vibrating Tube Method).
SJ/T 11723-2018 Electrolyte for Lithium-ion Batteries (Density Meter Method).
SN/T 0839.9-2015 Industrial Glycerol for Import and Export - Part 9: Determination of Density of Purified Glycerol at 20°C (U-shaped Vibrating Tube Density Meter Method).
SN/T 2383-2017 Liquid Chemical Products - Determination of Density and Relative Density - Digital Density Meter Method.
NY/T 1860.17-2016 Guidelines on Determination of Physicochemical Properties of Pesticides - Part 17: Density (Vibrating Density Meter Method).
YC/T 145.2-2012 Tobacco Flavorings - Determination of Relative Density (Automatic Density Meter Method).
JJF 1070-2005 Rules for Metrological Inspection of Net Quantity in Prepackaged Commodities (Electronic Density Meter).
JJF 1074-2018 Calibration Specification for Alcohol Density-Concentration Measurement Tables (Benchtop Density Meter).
JJG 1058-2010 Verification Regulation for Laboratory Vibrating Liquid Density Meters (Benchtop Vibrating Tube Density Meter).
Chinese Pharmacopoeia 2020 Edition, Part IV - Determination of Relative Density (Oscillating Density Meter).

Digital Density Meter DA-840 Main Features:

1. High Reliability: Internationally certified density standard solution manufacturer ensures instrument accuracy.
2. Equipped with Camera Function: Enhances visibility of the measurement unit, displays real-time images, and allows storage.
3. Optional Operation Unit: Choose between a tablet or computer based on your analysis style.
4. Reduced Measurement Time: Achieves 4-digit accuracy in 10 seconds through evolutionary algorithms.
5. Multi-Channel Measurement: The operation unit can control multiple measurement units for convenient data management.
6. Comprehensive Functions: Automatic bubble detection, full-range viscosity correction, built-in atmospheric pressure correction.
7. Fully Automatic Cleaning: One-touch operation for automatic sampling, measurement, drainage, cleaning, and drying.

Digital Density Meter DA-840 Technical Parameters:

Measurement Range: 0–3 g/cm3.
Measurement Temperature: 0–100°C (32–212°F), built-in Peltier temperature control.
Accuracy: Density: 5×10?? g/cm3.
Repeatability: Density: 5×10?? g/cm3.
Reproducibility: Density: 5×10?? g/cm3, Temperature: 0.01°C.
Testing Method: U-shaped vibrating tube method.
Sample Requirement: Manual injection approx. 1 mL, automatic pump sampling approx. 2 mL.
Measurement Time: Approx. 10 seconds under stable temperature conditions.
Display: Via tablet or computer.
Viscosity Correction: Automatic viscosity correction function.
Sampling Method: Manual injection or automatic sampling via built-in pump.
Measurement Cell Check Function: Automatically checks the dryness of the measurement cell; the pump stops automatically when the cell is dry.
Stability Judgment: Five-stage adjustment based on measurement accuracy and time.
Concentration Conversion: Automatically converts concentration values by inputting density and concentration tables or conversion formulas.
Temperature Compensation: Automatically performs temperature compensation by inputting density and temperature tables or conversion formulas.
Statistical Calculation: Automatically or manually calculates average value, standard deviation, relative standard deviation.
Power Supply: AC 100–240 V, 50/60 Hz, 40 W.
Dimensions: 295 (W) × 330 (D) × 255 (H) mm.
Weight: Approx. 19 kg.