Moisture Analyzers – Professional Moisture Determination by KERN & Precisa

Precision Moisture Analysis for Laboratories, Industry and Quality Control

Moisture analyzers, also known as moisture balances, moisture determination balances or moisture meters, are essential instruments for determining the moisture content and dry matter of samples in laboratories, industrial production and quality assurance.

By combining a precision weighing system with controlled heating technology, modern moisture analyzers enable rapid, reproducible moisture determination without the lengthy procedures associated with conventional laboratory drying ovens.

At SMI, our range of professional moisture analyzers places particular emphasis on the proven weighing technology of KERN and Precisa. Both manufacturers offer solutions for moisture analysis, ranging from routine laboratory testing and incoming goods inspection to demanding industrial quality control applications.

Whether you need to determine moisture in powders, granules, food ingredients, chemicals, plastics, pharmaceutical raw materials or environmental samples, selecting the appropriate moisture analyzer helps improve process consistency, product quality and measurement efficiency.

What Is a Moisture Analyzer?

A moisture analyzer is a laboratory or industrial measuring instrument that determines the moisture content of a sample by measuring its mass before and during a controlled drying process.

Most professional moisture analyzers operate according to the thermogravimetric loss-on-drying principle.

The instrument combines three essential components:

• Precision weighing system: Continuously measures the sample mass during drying.

• Integrated heating unit: Heats the sample under controlled conditions to remove moisture and other volatile substances.

• Evaluation electronics: Calculate and display moisture content, dry matter or mass loss according to the selected measurement method.

Unlike a conventional laboratory balance, a moisture analyzer performs both weighing and drying within a single instrument.

This integrated process enables faster results, standardized testing procedures and efficient routine moisture determination.

How Does a Moisture Analyzer Work?

Thermogravimetric Moisture Determination

The operating principle is based on measuring the loss of sample mass during heating.

First, a representative sample is placed on a sample pan and weighed.

The analyzer then heats the material according to a predefined drying program. As moisture and potentially other volatile substances evaporate, the sample mass decreases.

The weighing system continuously monitors this reduction until the selected drying endpoint is reached.

The instrument calculates the result using the initial and final sample masses.

Moisture Content Calculation

For the commonly used wet-basis moisture calculation:

Moisture content (%) = [(Initial mass − Dry mass) / Initial mass] × 100

For example:

• Initial sample mass: 10.000 g

• Mass after drying: 8.500 g

• Mass loss: 1.500 g

• Calculated moisture content: 15.00%

The result indicates a mass loss of 15% relative to the initial sample mass.

Important: Loss-on-drying measures total mass loss under the selected conditions. If the sample contains solvents or other volatile compounds, the result may not represent water content exclusively.

For applications requiring water-specific determination, a method such as Karl Fischer titration may be more appropriate.

KERN Moisture Analyzers – Reliable Solutions for Routine and Industrial Testing

Practical Moisture Determination for Different Applications

KERN is an established manufacturer of professional weighing equipment, offering moisture analyzers designed for laboratory work, industrial testing and quality control.

KERN moisture analyzers are particularly suitable for organizations seeking a practical combination of measurement performance, straightforward operation and cost-effective laboratory equipment.

Depending on the model, the range provides functions such as programmable drying temperatures, selectable drying programs, automatic switch-off criteria and digital result evaluation.

KERN DAB – Efficient Moisture Analysis for Routine Testing

The KERN DAB series is designed for routine moisture determination in laboratories and industrial environments.

It is suitable for applications such as:

• Incoming goods inspection

• Quality control of raw materials

• Moisture testing of powders and granules

• Production monitoring

• Routine laboratory measurements

Its straightforward operating concept makes it an interesting choice for businesses performing regular moisture tests without requiring extensive method-management functions.

KERN DLB – Flexible Moisture Determination

The KERN DLB series provides another option for professional moisture testing.

It is suited to laboratories and industrial departments that need repeatable moisture determination using defined drying parameters.

Typical applications include testing raw materials, monitoring production samples and checking moisture levels in processed products.

KERN DBS – Advanced Moisture Analysis

The KERN DBS series addresses users requiring more extensive drying-program control and evaluation options.

Depending on the configuration, its functions support the development and repeated use of drying procedures for different sample materials.

This makes it relevant to quality control laboratories and production facilities working with multiple sample types.

Why Choose KERN?

KERN moisture analyzers are particularly attractive for:

• Routine laboratory moisture testing

• Small and medium-sized production facilities

• Incoming goods inspection

• Industrial quality assurance

• Educational and research laboratories

• Companies seeking practical and economical measuring equipment

The individual KERN series differ in weighing capacity, readability, heating technology, drying programs and available interfaces. These specifications should always be compared at model level.

Precisa Moisture Analyzers – Swiss Precision for Demanding Applications

Professional Moisture Analysis with Advanced Weighing Technology

Precisa is a Swiss manufacturer recognized for precision weighing technology and professional laboratory instruments.

Precisa moisture analyzers are designed for users who place particular importance on measurement performance, reproducibility, controlled drying procedures and reliable operation in demanding laboratory environments.

They are particularly relevant where moisture determination forms an integral part of established quality assurance or laboratory testing procedures.

Precision Weighing and Controlled Heating

A key aspect of professional moisture analysis is the interaction between weighing performance and the drying process.

Precisa instruments combine precision weighing technology with controlled heating systems to support consistent measurement conditions.

Depending on the model, advanced functions may include:

• Configurable drying methods

• Different heating profiles

• Selectable measurement endpoints

• Method storage

• Result documentation

• Interfaces for data transfer

• Extended evaluation and reporting options

These capabilities can be especially valuable when laboratories analyze different materials or require standardized testing procedures.

Precisa for Laboratory and Industrial Quality Assurance

Precisa moisture analyzers are particularly relevant for:

• Laboratory quality control

• Research and development

• Pharmaceutical raw material testing

• Chemical industry applications

• Food production

• Polymer and plastics testing

• Materials research

• Repeated analysis using validated internal methods

For users working with demanding samples, selecting the appropriate Precisa model and establishing suitable drying parameters are essential to obtaining meaningful results.

KERN vs. Precisa Moisture Analyzers – Which Manufacturer Is Right for You?

Both manufacturers offer professional instruments for thermogravimetric moisture determination, but they can address different purchasing priorities.

KERN is an excellent starting point for businesses looking for practical, reliable moisture determination across a variety of routine applications.

Precisa deserves particular consideration when laboratories require sophisticated method control, precision weighing performance and detailed measurement documentation.

Neither manufacturer is automatically superior for every sample. The most suitable instrument depends on the required method, sample characteristics, measurement performance and documentation requirements.

Heating Technologies in Modern Moisture Analyzers

Halogen Moisture Analyzers

Halogen heating is widely used in modern moisture analyzers because it provides rapid heat generation and responsive temperature control.

Its advantages can include:

• Short heating times

• Efficient routine analysis

• Controlled drying temperatures

• Good suitability for many powders, granules and solid materials

• Compact instrument construction

Halogen heating is particularly useful where rapid moisture determination is required.

Infrared and Other Heating Systems

Some moisture analyzers use alternative infrared or radiant heating technologies.

The suitability of a heating system depends on the sample material, its thermal properties and the required drying conditions.

It is important not to assume that every KERN or Precisa moisture analyzer uses the same heating technology. The heating principle must be verified for the individual model.

Applications of Moisture Analyzers

Food and Beverage Industry

Moisture content is an important quality parameter in many food products.

Moisture analyzers can be used to test:

• Flour and grain products

• Spices and seasonings

• Coffee and tea

• Dairy powders

• Food ingredients

• Dried fruit and vegetable products

• Processed food samples

Moisture determination helps manufacturers monitor product consistency, processing conditions and storage characteristics.

Pharmaceutical Industry

In pharmaceutical development and manufacturing, moisture can influence the processing and stability of raw materials and finished products.

Moisture analyzers may be used for preliminary testing, process monitoring and quality control where the method is appropriate.

For regulated applications, instrument suitability, method validation, documentation and applicable quality requirements must be assessed separately.

Chemical Industry

Moisture analysis is used in the chemical industry to evaluate raw materials, powders, granules and processed substances.

Controlled moisture levels can be important for production consistency, handling characteristics and product specifications.

Special attention must be paid to materials that release volatile chemicals or decompose when heated.

Plastics and Polymer Processing

Moisture can influence the processing behavior and quality of certain polymers.

Moisture analyzers may support testing of plastic granules and raw materials, provided the selected method is suitable for the material and required moisture range.

For very low moisture levels or applications requiring water-specific measurement, specialized methods may be necessary.

Environmental and Wastewater Laboratories

Moisture analyzers are also useful for environmental samples and wastewater treatment applications.

Typical samples include:

• Sewage sludge

• Wastewater treatment residues

• Soil samples

• Sediments

• Filter cakes

• Industrial waste materials

In these applications, moisture determination can help assess dry matter content, processing conditions and material characteristics.

For sewage sludge and similar materials, the drying procedure must be appropriate for the applicable laboratory method.

Agriculture and Animal Feed

Moisture analyzers can be used to examine agricultural materials, feed ingredients and processed plant products.

Typical applications include the testing of grains, seeds, animal feed and agricultural raw materials.

Construction Materials

Moisture determination may be relevant for construction-related materials such as powders, mineral samples and processed building products.

Sample preparation and drying conditions must be adapted to the material, particularly where chemically bound water or thermal decomposition may affect the result.

Moisture Content vs. Dry Matter Content

Moisture analyzers can provide different result formats depending on the instrument and selected calculation mode.

For wet-basis results, moisture percentage and dry matter percentage normally add up to 100%.

For example, a sample with 18% moisture content contains 82% dry matter on the same wet-basis calculation.

The selected reporting convention should always be consistent with the applicable testing method.

How to Choose the Right Moisture Analyzer

1. Weighing Capacity

The maximum weighing capacity determines the amount of sample that can be placed on the instrument.

A higher capacity may be useful for larger or less homogeneous samples, but it does not automatically provide better moisture measurement performance.

2. Readability and Moisture Resolution

The balance readability influences how precisely changes in sample mass can be detected.

Moisture resolution depends on the weighing system, sample mass and instrument calculation.

For applications involving very small moisture changes, careful evaluation of these factors is essential.

3. Temperature Range

Different materials require different drying temperatures.

The available temperature range should be suitable for the sample and the method.

Excessively high temperatures may cause decomposition, oxidation or the evaporation of substances other than water.

4. Heating Technology

Halogen and other radiant heating systems differ in their heating behavior.

The choice should reflect the material, desired analysis time and required method performance.

5. Drying Programs

Advanced moisture analyzers may offer multiple drying profiles and endpoint criteria.

These functions can help optimize measurements for samples with different thermal characteristics.

6. Method Storage

For laboratories analyzing several sample types, the ability to store drying methods can improve consistency and reduce setup time.

7. Data Interfaces

Depending on the model, interfaces such as RS-232, USB or network connectivity may be available.

They can support result transfer, printing and integration with compatible laboratory systems.

8. Calibration and Verification

Regular checks of the weighing system and drying temperature help maintain confidence in measurement performance.

Where appropriate, calibration services and reference materials can support laboratory quality assurance.

Sample Preparation – A Key Factor in Reliable Moisture Analysis

Even a high-quality moisture analyzer cannot compensate for unsuitable sample preparation.

For meaningful results, the sample should be representative of the material being tested.

Important considerations include:

• Use a representative sample quantity.

• Distribute the sample evenly across the pan.

• Avoid excessively thick sample layers.

• Select a suitable drying temperature.

• Use appropriate drying endpoint criteria.

• Prevent sample contamination.

• Follow the same procedure for repeated measurements.

• Document the method when traceability is required.

For samples that form a surface crust, melt, foam or release volatile compounds, special preparation techniques or alternative analytical methods may be necessary.

Moisture Analyzers vs. Conventional Drying Ovens

Both moisture analyzers and laboratory drying ovens can be used in gravimetric drying procedures, but they differ in operation and workflow.

A moisture analyzer can significantly improve routine testing efficiency, but it should not automatically be treated as interchangeable with a specified reference drying-oven method.

Where compliance with a standard is required, the selected procedure must be demonstrated to meet that standard.

Calibration and Quality Assurance

Maintaining Confidence in Measurement Results

Reliable moisture determination depends on both the weighing system and the heating process.

Routine quality assurance may include:

• Balance calibration or performance checks

• Temperature verification

• Repeatability testing

• Testing with suitable reference materials

• Comparison with an established reference method

• Documentation of drying programs

• Regular cleaning and maintenance

The required frequency depends on the application, the instrument, the laboratory's quality system and the consequences of an incorrect result.

Frequently Asked Questions About Moisture Analyzers

What is a moisture analyzer used for?

A moisture analyzer is used to determine the mass lost by a sample during controlled drying. It is commonly used for moisture testing, dry matter determination and quality control in laboratories and industry.

What is the difference between a moisture analyzer and a moisture meter?

A moisture analyzer typically determines moisture by measuring mass loss during heating. Other moisture meters may use electrical, capacitive, infrared spectroscopic or other measurement principles. The terms are sometimes used interchangeably, but the technologies can differ significantly.

Are KERN moisture analyzers suitable for industrial use?

Yes. KERN offers moisture analyzers suitable for routine laboratory testing and various industrial quality control applications. The correct model depends on the material and measurement requirements.

Are Precisa moisture analyzers suitable for laboratory quality control?

Yes. Precisa offers professional moisture determination instruments for laboratory and industrial applications, including situations where reproducibility and controlled drying methods are important.

Which is better: KERN or Precisa?

Both manufacturers offer professional solutions. KERN is particularly attractive for practical routine testing, while Precisa is worth considering for applications requiring more extensive method control and laboratory-oriented functionality. The final decision should be based on specific model characteristics.

Can a moisture analyzer measure dry matter content?

Yes. Many moisture analyzers can display dry matter as a percentage of the initial sample mass, in addition to moisture content.

Can moisture analyzers be used for sewage sludge?

Yes, when the instrument and drying method are appropriate. Moisture and dry matter determination are relevant to wastewater treatment and environmental laboratory applications.

How long does a moisture analysis take?

The measurement time depends on sample mass, moisture content, drying temperature, material properties and endpoint criteria. Some routine tests take only a few minutes, while other materials require longer drying periods.

Can a moisture analyzer determine water content exclusively?

Not necessarily. Thermogravimetric moisture analyzers measure mass loss during drying, which may include water and other volatile substances.

Do moisture analyzers need calibration?

Regular checks of the weighing system and drying temperature are recommended. The required calibration and verification procedures depend on the application and the laboratory's quality requirements.

Buy Professional Moisture Analyzers at SMI

At SMI, laboratories, manufacturers, research institutions and quality control departments can find professional moisture analyzers for a wide range of applications.

Our product selection places particular emphasis on KERN and Precisa, two established manufacturers of precision weighing and moisture determination equipment.

Whether you require a practical moisture balance for routine production testing, a professional analyzer for quality assurance or an advanced instrument for laboratory method development, the right solution depends on your samples, measurement requirements and working environment.

Explore our range of KERN and Precisa moisture analyzers and select the instrument that best matches your requirements for weighing performance, heating technology, drying programs and result documentation.