SID-220W High Precision Electronic Densimeter

The SID-220W High Precision Electronic Densimeter

Accurate Density Measurement for Liquids and Light Solids

The SID-220W from Alfa Mirage Japan offers ultra-precise density measurements with a resolution of 0.0001 g/cm³. It is ideal for liquids and easily floating solids such as urethane, rubber, sponge, and wood. This instrument ensures reliable results for laboratory, quality control, and production environments.

SID-220W High-Precision Electronic Densimeter

The Alfa Mirage SID-220W is a high-grade electronic densimeter designed for precise measurement of specific gravity, density, volume and weight. With a density resolution of 0.0001 g/cm³ and an auxiliary display down to 0.00001, it provides the sensitivity required for demanding laboratory research, material evaluation and industrial quality-control applications.

Manufactured in Japan, the SID-220W uses hydrostatic displacement principles to determine the density of solid, liquid and powder samples. Its advanced measuring system supports materials that can be difficult to evaluate using conventional methods, including floating, absorbent and porous samples.

High-Precision Density Measurement

The SID-220W automatically calculates specific gravity from measurements taken in air and in a reference liquid. This eliminates much of the manual calculation associated with traditional hydrostatic and pycnometer methods while helping operators obtain consistent, repeatable results.

Selectable measurement times from 3 to 30 seconds allow the instrument to be configured for either rapid testing or averaged measurements. The immediate-measurement mode is particularly useful for materials whose apparent density changes quickly after immersion.

Designed for Challenging Materials

The densimeter can test conventional solids as well as materials that float in water, absorb liquid or contain pores. Typical samples include plastics, rubber, urethane, films, sponge, wood, pellets and selected powders.

A supplied stainless-steel angle fixture holds lightweight samples below the surface of the measurement liquid, making it easier to determine the specific gravity of materials with a density below that of water.

Manual and Semi-Automatic Operation

Operators can select manual-entry or semi-automatic measurement modes according to the testing procedure. Semi-automatic operation reduces repetitive manual input and helps minimize operator-related variation during routine testing.

The instrument can display specific gravity, density, volume and sample weight. It can also evaluate changes in volume and update readings while testing absorbent materials.

Precise Temperature Compensation

Because the density of water changes with temperature, the SID-220W provides water-density and specific-gravity compensation in increments of 0.1°C. This correction supports more accurate hydrostatic measurements and helps laboratories follow standardized testing procedures.

Solid, Liquid and Powder Measurement

Solid samples

The standard configuration accommodates solid samples measuring up to 45 × 20 × 15 mm. Floating samples, pellets, absorbent materials and other difficult solids can be evaluated using the appropriate measurement accessories and procedures.

Liquid samples

With the optional liquid measurement kit, the SID-220W can determine the specific gravity and density of liquids using a sample volume of approximately 50 cc. Changing samples is simplified by replacing the measurement beaker.

Powder samples

The instrument can perform simplified density measurements on suitable powders and larger particles. Compatibility depends on the particle size, sample characteristics and selected measurement container.

Data Output and Documentation

Standard RS-232C and USB interfaces allow measurement results to be transferred to compatible computers, printers and data-management systems. This facilitates electronic recordkeeping, reporting and integration into laboratory quality programs.

An optional traceable calibration certificate is available for organizations that require documented instrument verification.

Key Features

• Specific-gravity and density resolution of 0.0001
• Auxiliary display down to 0.00001
• Weighing capacity up to 220 g
• Measures solids, liquids and suitable powders
• Supports floating, porous and absorbent materials
• Manual and semi-automatic measurement modes
• Selectable measurement time from 3 to 30 seconds
• Immediate measurement mode for rapidly changing samples
• Water-temperature compensation in 0.1°C increments
• Volume-change measurement capability
• RS-232C and USB interfaces supplied as standard
• Optional custom measurement containers available
• Manufactured in Japan by Alfa Mirage

Applications

The SID-220W is suitable for research laboratories, production facilities and quality-control departments that need to verify material identity, mixture ratios, formulation consistency or manufacturing quality.

• Plastics and composite materials
• Rubber and elastomers
• Urethane and foam materials
• Films and lightweight polymers
• Sponge and porous materials
• Wood and low-density solids
• Chemical formulations
• Pellets and selected powders
• Product development and material research
• Incoming-material and production quality control

EW-300SG - a different option for a simple analysis

A compact and economical alternative intended primarily for routine specific gravity measurements of solid samples. Provides an efficient solution for everyday density testing.

Included Accessories

• Tweezers
• Water thermometer
• Stainless-steel angle for floating samples
• 200 g E2-class calibration weight
• Standard weighing pan
• AC adapter
• RS-232C interface
• USB interface and USB cable

Available Options

• Liquid measurement kit
• Compatible data printer
• Traceable calibration certificate
• ISO-compatible calibration documentation
• Custom measurement containers for specialized samples

Q&A

What does the SID-220W measure?

It measures specific gravity, density, volume and weight for compatible solid, liquid and powder samples.

What is the density resolution of the SID-220W?

The standard specific-gravity resolution is 0.0001, with an auxiliary display capable of showing values down to 0.00001.

Can the SID-220W measure materials that float in water?

Yes. A stainless-steel angle holds lightweight samples below the surface of the measurement liquid so that materials such as urethane, sponge, film and wood can be tested.

Can it measure absorbent or porous materials?

Yes. Its immediate-measurement and value-update functions help evaluate materials whose volume or apparent density may change after immersion.

Can the instrument measure liquids?

Yes. Liquid density and specific gravity can be measured using the optional liquid measurement kit. Approximately 50 cc of sample is required.

Can it measure powders?

The SID-220W can perform simplified measurements on suitable powders and larger particles. The feasibility of a measurement depends on particle size and sample behavior.

How long does a measurement take?

The measurement period can be selected from approximately 3 to 30 seconds. Shorter settings provide fast readings, while longer settings average the measurement to improve stability.

Why is water-temperature compensation important?

Water density changes with temperature. The SID-220W corrects the reference-water value in 0.1°C increments to improve the accuracy of hydrostatic density calculations.

Does the SID-220W calculate density automatically?

Yes. The instrument uses sample weights measured in air and in a reference liquid to calculate specific gravity and related values automatically.

What is the maximum sample weight?

The densimeter has a weighing capacity of up to 220 g.

What is the maximum solid sample size?

The standard measurement system accommodates solid samples measuring up to 45 × 20 × 15 mm. Custom containers may be available for specialized samples.

Can measurement results be transferred to a computer?

Yes. RS-232C and USB interfaces are included for connection to compatible computers, printers and data-acquisition systems.

Which industries commonly use the SID-220W?

It is suited to plastics, rubber, urethane, chemical, materials-research and manufacturing applications where accurate density data are needed for formulation verification, comparison and quality control.

Is a calibration certificate available?

Yes. Traceable and ISO-compatible calibration documentation can be ordered as optional services.

Where is the SID-220W manufactured?

The SID-220W is manufactured in Japan by Alfa Mirage.