Digital Densimeter HDA838-1

The Digital Densimeter HDA838-1 is designed for precise density measurement of solid and liquid materials. It is widely applicable to industries such as rubber, plastics, wires and cables, tires, glass products, hard alloys, chemical solutions, modern energy, petroleum fuels, fine chemicals, reagents, chemical laboratories, and new material research laboratories. The instrument supports quality control, formulation verification, cost management, and density research.

Applications

(1) Rubber products: vulcanized rubber, rubber sheets, gaskets, seals, and tires.

(2) Plastic materials: plastic granules, films, sheets, foamed plastics, and molded components.

(3) Chemical solutions: liquids including solvents, acids, bases, oils, and emulsions.

(4) Glass and ceramics: solid density verification of glass, ceramics, and composite materials.

(5) Metals and alloys: density measurement of metals, hard alloys, and solid components.

(6) Laboratory and research: formulation development, density studies, and quality control.

Standards

(1) ASTM D792 — Standard Test Methods for Density and Specific Gravity of Plastics by Displacement

(2) ASTM D297 — Standard Test Methods for Rubber Products

(3) GB/T 1033 — Plastics — Determination of Density

(4) GB/T 2951, GB/T 3850, GB/T 533 — Rubber and Plastics Density Standards

(5) HG4-1468 — Chemical Industry Density Measurement Standard

(6) JIS K6268 — Plastics — Determination of Specific Gravity

(7) ISO 2781, ISO 1183 — Plastics — Determination of Density

(8) GB/T 611, GB/T11540, GB/T12206, GB/T5518 — Additional national density testing methods

Features

(1) Solid measurement versatility: Measures metals, rubber, plastics, granules, foams, films, gaskets, tubes, wood, glass, and composite solids using Archimedes’ principle.

(2) Liquid measurement flexibility: Supports measurement of liquids from room temperature up to 100℃, including volatile, corrosive, viscous, or emulsified fluids.

(3) High efficiency: Automatic zero tracking, quick measurement (~5 seconds for solids), and dynamic memory function for liquids.

(4) Direct reading of results: Displays density, volume, and material content percentages, including dual-material mixture proportions.

(5) Adaptable to different media: Uses water or other liquids as test medium, with temperature compensation for accurate results.

(6) User-friendly operation: Simple solid and liquid measurement steps with minimal sample volume (~50 mL for liquids).

Technical Parameters

Accessories

Standard accessories:

(1) Main unit ×1

(2) Tweezers ×1

(3) Thermometer ×1

(4) Calibration weight ×1

(5) Dustproof/wind shield ×1 set

(6) Solid measurement water tank ×1

(7) Solid measurement platform ×1

(8) Particle measurement attachment ×1 set

(9) Floating body measurement attachment ×1 set

(10) Liquid measurement placement board ×1

(11) Liquid measurement support ×1

(12) DE-20A standard liquid measurement assembly ×1

(13) Power transformer ×1

Optional accessories:

(1) DE-40 printer

(2) DM-20B corrosive liquid measurement assembly

(3) DM-20A standard liquid measurement assembly

Test Procedures

Solid measurement steps:

(1) Place the solid sample on the measurement platform and record its weight in air by pressing ENTER.

(2) Immerse the sample in the water tank, record the weight in water, and press ENTER to display density.

Liquid measurement steps:

(1) Place the sample liquid in a beaker on the liquid measurement placement board and deduct hook weight.

(2) Attach the standard weight to the hook and immerse it into the liquid; the instrument directly displays density.

Maintenance Information

(1) Rinse and clean the water tanks and measurement cups after each test.

(2) Avoid using abrasive or corrosive brushes on the electronic display or plastic components.

(3) Periodically check calibration using distilled water or standard density liquids.

(4) Store the instrument in a dry and dust-free environment.

(5) Inspect electrical connections and power supply regularly to ensure stable operation.