KERN DLB Moisture Analyzers – High-Resolution Halogen Moisture Testing for Laboratories and Industry

Professional Moisture Determination with Advanced Weighing Technology and Intuitive Operation

The KERN DLB moisture analyzers combine precision weighing technology, controlled halogen heating, and an intuitive graphical user interface to deliver reliable moisture and dry matter determination for laboratory and industrial applications.

Designed for professional quality control, the DLB series measures the loss in mass of a sample during a controlled drying process. The integrated weighing system continuously monitors the sample, allowing moisture content, dry matter, and drying loss to be determined within a single instrument.

The KERN DLB family offers two distinct performance levels:

• KERN DLB 60-4A – High-resolution moisture analyzer with 60 g weighing capacity and 0.0001 g (0.1 mg) readability.

• KERN DLB 160-3A – Versatile laboratory moisture analyzer with 160 g weighing capacity and 0.001 g readability.

For international customers, the DLB 160-3A is also available in a dedicated 110 V version, making it particularly relevant for laboratories and industrial facilities operating with compatible electrical power supplies in the Americas.

Both models feature 400 W halogen quartz-glass heating, a graphical LCD display, multilingual operator guidance, RS-232 connectivity, and GLP measurement reporting.

From moisture analysis of plastic pellets to routine testing of food ingredients, agricultural products, industrial raw materials, and environmental samples, the KERN DLB series offers professional solutions for different analytical requirements.

KERN DLB – Two Performance Classes for Professional Moisture Analysis

KERN DLB 60-4A – High-Resolution Moisture Analyzer with 0.1 mg Readability

The KERN DLB 60-4A is designed for applications requiring particularly fine detection of mass changes during drying.

It provides a maximum weighing capacity of 60 g and a readability of 0.0001 g (0.1 mg).

Moisture content can be displayed with a resolution of 0.001%.

Unlike the DLB 160-3A, the DLB 60-4A incorporates an electromagnetic force compensation weighing system.

This technology supports high-resolution mass measurement and makes the instrument particularly interesting for analytical tasks involving small sample quantities and low drying losses.

Typical applications include:

• Residual moisture testing of suitable plastic pellets

• High-resolution analysis of industrial raw materials

• Quality control of small sample quantities

• Research and development

• Evaluation of drying processes

• Comparative moisture testing

• Laboratory applications requiring fine mass readability

In plastics processing, residual moisture can affect the performance and quality of certain polymers.

The DLB 60-4A allows small changes in sample mass to be observed with a fine display resolution.

However, a readability of 0.1 mg does not automatically guarantee equivalent accuracy in the final moisture result. Sample preparation, drying conditions, and method suitability remain essential.

KERN DLB 160-3A – Versatile Moisture Analyzer for Routine Laboratory Testing

The KERN DLB 160-3A offers a maximum weighing capacity of 160 g and a readability of 0.001 g.

Its moisture display resolution is 0.01%.

The higher weighing capacity makes it particularly suitable for laboratories and industrial quality control departments working with larger sample quantities.

The instrument combines professional moisture determination with a straightforward operating concept.

Typical applications include:

• Incoming goods inspection

• Routine laboratory moisture testing

• Industrial quality control

• Food ingredient analysis

• Dry matter determination

• Agricultural raw material testing

• Environmental sample analysis

• Production process monitoring

The DLB 160-3A is particularly interesting for companies that require consistent moisture testing across multiple materials and operators.

Its graphical user interface, multilingual guidance, and flexible drying parameters support efficient daily operation.

KERN DLB 160-3A – 110 V Moisture Analyzer for the Americas

Dedicated 110 V Version for International Laboratory Environments

The KERN DLB 160-3A is also available in a dedicated 110 V version, offering an important purchasing option for laboratories and industrial facilities operating with compatible lower-voltage electrical systems.

This configuration is particularly relevant for customers in the United States, Canada, Mexico, Central America, and selected South American markets.

The 110 V version maintains the analytical characteristics of the DLB 160-3A while providing an electrical configuration intended for compatible power supplies.

Key analytical specifications include:

• 160 g maximum weighing capacity

• 0.001 g weighing readability

• 0.01% moisture display resolution

• 400 W halogen quartz-glass heating

• Adjustable drying temperature from 35 °C to 160 °C

• Standard and rapid drying profiles

• Automatic, timed, and manual switch-off criteria

• Graphical LCD display

• Multilingual operator guidance

• RS-232 data interface

• GLP measurement reporting

Why the 110 V Version Matters

Electrical supply requirements are an important consideration when purchasing laboratory equipment internationally.

Many laboratories in North America use nominal 120 V electrical systems, while supply voltages vary significantly across Central and South America.

For these customers, the availability of a dedicated 110 V configuration can simplify the selection of suitable equipment.

However, 110 V and 120 V must not automatically be considered interchangeable. The analyzer's rated voltage tolerance, mains frequency, and plug configuration must be checked against the local electrical supply before ordering.

Applications for the KERN DLB 160-3A 110 V

The 110 V version is particularly relevant for:

• University and research laboratories in the United States

• Industrial quality control facilities in Canada

• Manufacturing operations in Mexico

• Food testing laboratories in Central America

• Plastics processing facilities

• Agricultural testing laboratories

• Environmental laboratories

• International companies standardizing their laboratory equipment

A Professional Moisture Analyzer for American Industrial Applications

The DLB 160-3A 110 V combines professional moisture testing with practical features for everyday laboratory use.

Its 160 g weighing capacity, halogen heating system, and graphical operator guidance make it suitable for a wide range of routine applications.

For buyers comparing laboratory moisture analyzers for the American market, the availability of a dedicated 110 V version is an important technical consideration.

Important: Electrical compatibility must always be verified using the manufacturer's specifications for the exact ordered version, including voltage, frequency, and plug type.

Technical Comparison – KERN DLB Moisture Analyzer Models

Which KERN DLB Model Should You Choose?

Choose the DLB 60-4A when high mass resolution is a priority and a maximum sample capacity of 60 g is sufficient.

Choose the DLB 160-3A when larger sample quantities and reliable routine testing are more important.

Choose the DLB 160-3A 110 V when the analytical capabilities of the 160-3A are required and the installation site uses a compatible lower-voltage power supply.

The most suitable instrument depends on sample properties, expected moisture levels, measurement requirements, and local electrical conditions.

Thermogravimetric Moisture Determination – How KERN DLB Works

Weighing, Drying, and Calculation in One Instrument

KERN DLB moisture analyzers operate according to the thermogravimetric loss-on-drying principle.

A representative sample is placed on a sample pan and weighed by the integrated balance.

The heating system then raises the temperature according to the selected drying parameters.

As moisture and other potentially volatile components evaporate, the sample loses mass.

The instrument continuously monitors this change and calculates the drying loss.

The commonly used formula for moisture content on a wet basis is:

Moisture (%) = [(Initial Mass − Final Mass) / Initial Mass] × 100

For example, a sample with an initial mass of 10.000 g and a final mass of 8.200 g shows a mass loss of 18%.

The corresponding dry matter content is 82%.

Loss on Drying Is Not Always the Same as Water Content

Thermogravimetric moisture analysis measures the total loss of mass under the selected drying conditions.

If a sample contains solvents or other volatile substances, these may also contribute to the result.

Chemical decomposition or oxidation may also affect the measurement.

When highly selective water determination is required, another analytical method, such as Karl Fischer titration, may be more appropriate.

400 W Halogen Heating for Controlled Moisture Testing

Adjustable Drying Temperatures from 35 °C to 160 °C

Both KERN DLB models feature a 400 W halogen quartz-glass heater.

The drying temperature can be adjusted between 35 °C and 160 °C, in increments of 1 °C.

This allows the operator to define drying conditions for different sample types.

The halogen heating system provides rapid heat delivery and supports efficient laboratory workflows.

Important factors when selecting the drying temperature include:

• Material composition

• Initial moisture content

• Sample quantity

• Particle size

• Thermal stability

• Presence of volatile compounds

• Required analytical method

Excessive temperatures may cause decomposition, oxidation, or other changes that influence the measurement.

Standard and Rapid Drying Profiles

Two Heating Programs for Different Materials

The KERN DLB series provides two drying profiles.

Standard Drying

Standard drying is suitable for many routine laboratory applications.

It provides controlled heating under defined conditions and is a useful starting point for developing repeatable analytical methods.

Rapid Drying

Rapid drying is intended for materials that can tolerate accelerated heating.

Under suitable conditions, it may reduce the total analysis time.

A preheating function is also available.

The correct drying profile should be selected according to the thermal behavior of the sample.

Automatic, Timed, and Manual Switch-Off Criteria

Automatic Switch-Off

The analyzer can stop the drying process when the defined mass-change criterion is reached.

This function is particularly useful for repetitive laboratory testing.

Timed Switch-Off

The operator can specify a fixed drying duration.

The DLB series supports timed measurements of up to twelve hours.

This option is useful for methods requiring a predetermined drying time.

Manual Switch-Off

The drying process can also be stopped directly by the operator.

This is especially useful when evaluating new materials or developing analytical procedures.

Graphical LCD with Step-by-Step Operator Guidance

Intuitive Operation for Professional Laboratories

The KERN DLB series features a backlit graphical LCD display with 11 mm digits.

Six direct-access keys provide convenient control of the main instrument functions.

The operator guidance is available in six languages:

• English

• German

• French

• Italian

• Spanish

• Portuguese

The multilingual interface is particularly useful for international companies, shared laboratories, and facilities with multiple operators.

The display provides access to essential drying information, including:

• Current temperature

• Selected heating profile

• Active switch-off criterion

• Drying status

• Measurement result

This graphical interface helps users configure and monitor their analyses efficiently.

Automatic Taring for Simplified Laboratory Workflows

Convenient Handling During Repetitive Testing

KERN DLB moisture analyzers support automatic taring when a measurement is initiated by closing the instrument lid.

This feature simplifies routine operation and reduces certain manual steps.

The last measured result remains visible until a new measurement replaces it.

These functions are especially practical for laboratories processing multiple samples throughout the working day.

RS-232 Connectivity and GLP Measurement Reporting

Professional Documentation and Data Transfer

Reliable documentation is an important part of laboratory quality control.

The KERN DLB series features an integrated RS-232 interface for transferring measurement data to compatible equipment.

The instruments also support GLP measurement reporting.

Depending on the configuration, measurement reports may include:

• Balance identification

• Project identification

• User identification

• Measurement results

• Relevant drying parameters

These functions can support:

• Laboratory documentation

• Printing of measurement results

• Recordkeeping

• Quality control procedures

• Comparison of test results

• Internal traceability requirements

GLP report output alone does not replace any additional qualification, validation, or regulated electronic data integrity requirements.

KERN DLB 60-4A for Plastic Pellets and Residual Moisture Testing

High-Resolution Moisture Analysis in Plastics Processing

Residual moisture can be a critical parameter in the processing of certain thermoplastic materials.

Hygroscopic polymers may require controlled drying before injection molding, extrusion, or other manufacturing processes.

The KERN DLB 60-4A, with its 0.1 mg weighing readability, is particularly interesting for suitable residual moisture applications.

Potential uses include:

• Testing of compatible plastic pellets

• Incoming raw material inspection

• Evaluation of drying equipment

• Comparison of drying conditions

• Quality control before processing

• Research and development

Its high-resolution weighing system helps detect small changes in sample mass.

However, when extremely low water contents must be determined, the suitability of thermogravimetric analysis should be carefully assessed.

For some polymers, Karl Fischer titration or another specialized method may provide better selectivity or sensitivity.

KERN DLB Moisture Analyzers in the Food Industry

Moisture Control for Ingredients and Production Materials

Moisture content is an important quality parameter in many food manufacturing processes.

It can influence texture, handling, processing behavior, and storage stability.

KERN DLB analyzers may be used for suitable samples such as:

• Flour

• Cereals and grains

• Milk powder

• Spices

• Coffee and tea

• Dried ingredients

• Plant-based raw materials

• Animal feed

Regular moisture testing can help manufacturers compare production batches and monitor process consistency.

Representative sampling and appropriate drying conditions are essential for meaningful results.

Moisture Testing in Wastewater Treatment and Environmental Laboratories

Dry Matter Determination in Sludge and Environmental Samples

In wastewater treatment, dry matter content is an important parameter for evaluating sludge handling and dewatering processes.

KERN DLB moisture analyzers may be used for suitable samples including:

• Wastewater sludge

• Dewatered sludge

• Filter cakes

• Sediments

• Soil samples

• Compatible organic residues

Loss-on-drying measurements can provide useful information about material characteristics and treatment performance.

When testing is governed by specific standards, the applicable drying conditions and method requirements must be observed.

Additional Applications of KERN DLB Moisture Analyzers

Chemical Industry

Loss-on-drying testing of suitable powders, granules, and industrial raw materials.

Agriculture

Moisture analysis of grains, seeds, animal feed, and other agricultural materials.

Research and Development

Investigation of drying behavior and comparison of different temperature profiles.

Industrial Quality Control

Routine testing of incoming materials, intermediate products, and finished goods.

Pharmaceutical and Cosmetic Applications

Testing of suitable materials under appropriately qualified or validated analytical procedures when required.

Moisture Content, Dry Matter, and ATRO Values

Understanding Different Measurement Results

KERN DLB moisture analyzers support different result displays.

For example, a sample with 20% moisture on a wet basis contains 80% dry matter.

The corresponding ATRO value is:

ATRO (%) = (Mass Loss / Dry Mass) × 100

In this example:

ATRO = (20 / 80) × 100 = 25%

These calculation conventions must be distinguished when comparing analytical results.

KERN DLB vs. KERN DAB – Which Moisture Analyzer Is Better?

Both KERN DLB and KERN DAB use thermogravimetric moisture determination, but they address different priorities.

KERN DAB

The DAB series includes halogen and infrared heating versions with different weighing capacities.

It is particularly interesting for users seeking versatile instruments for routine moisture testing.

KERN DLB

The DLB series emphasizes intuitive graphical operation, GLP reporting, and a choice between two weighing performance classes.

The DLB 60-4A offers particularly fine 0.1 mg readability.

The DLB 160-3A provides a larger weighing capacity for routine applications.

The availability of a dedicated 110 V DLB 160-3A version is an additional consideration for customers in the Americas.

The most suitable series depends on resolution requirements, sample properties, drying conditions, and documentation needs.

KERN DLB vs. KERN DBS – Important Selection Criteria

The KERN DBS series is another professional option for laboratory moisture determination.

When comparing DLB and DBS models, users should consider:

• Maximum weighing capacity

• Weighing readability

• Weighing technology

• Temperature range

• Drying programs

• Data interfaces

• Documentation features

• Method management requirements

The DLB series is particularly interesting for users who prioritize intuitive operation and high-resolution weighing, depending on the selected model.

Calibration, Adjustment, and Temperature Verification

Maintaining Reliable Moisture Measurements

Reliable moisture determination depends on both weighing performance and heating temperature.

The KERN DLB series supports adjustment using an appropriate external calibration weight.

An optional temperature calibration kit is available for checking the heating system.

A suitable laboratory verification program may include:

• Regular weighing checks

• Balance adjustment

• Heating temperature verification

• Repeatability testing

• Appropriate reference samples

• Cleaning and maintenance

• Documentation of verification intervals

Mass calibration and temperature verification are separate procedures.

Their frequency should reflect the laboratory's requirements and the instrument's operating conditions.

Practical Tips for Repeatable Moisture Analysis

Use Representative Samples

The sample should reflect the properties of the material being tested.

Distribute the Sample Evenly

A uniform layer supports consistent heating.

Select an Appropriate Temperature

Excessive temperatures may cause decomposition, oxidation, or unwanted chemical changes.

Choose the Correct Drying Profile

Standard or rapid drying should be selected according to the material's behavior.

Define the Switch-Off Criterion

The endpoint must be appropriate for the analytical method.

Document the Test Conditions

For repetitive testing, record the sample mass, drying temperature, heating profile, and switch-off criterion.

Frequently Asked Questions About KERN DLB Moisture Analyzers

What is a KERN DLB moisture analyzer?

A KERN DLB is a thermogravimetric moisture analyzer that measures sample mass during controlled drying and calculates moisture content or dry matter from the resulting mass change.

Which models are available in the KERN DLB series?

The series includes the DLB 60-4A and DLB 160-3A. A dedicated 110 V version of the DLB 160-3A is also available.

What is the difference between DLB 60-4A and DLB 160-3A?

The DLB 60-4A offers 60 g capacity and 0.0001 g readability. The DLB 160-3A provides 160 g capacity and 0.001 g readability.

Is the KERN DLB 160-3A available in 110 V?

Yes. A dedicated 110 V version is available for installations with compatible electrical power supplies.

Is the 110 V version suitable for laboratories in the United States?

It may be suitable, but the exact voltage tolerance, mains frequency, plug type, and other applicable electrical requirements must be verified before ordering.

Can the 110 V version be used in Canada and Mexico?

It may be suitable for compatible installations. Electrical compatibility must be confirmed for the specific location and product version.

Which KERN DLB is suitable for plastic pellets?

The DLB 60-4A is particularly interesting for high-resolution residual moisture testing of suitable plastic materials.

Which heating technology does KERN DLB use?

Both models use a 400 W halogen quartz-glass heating system.

What is the adjustable temperature range?

The temperature can be set from 35 °C to 160 °C in increments of 1 °C.

Which drying profiles are available?

The instruments offer standard and rapid drying profiles.

Can the drying process stop automatically?

Yes. Automatic, timed, and manual switch-off criteria are available.

Can KERN DLB moisture analyzers connect to a computer?

Yes. The integrated RS-232 interface supports data transfer to compatible equipment.

Do KERN DLB analyzers support GLP reporting?

Yes. They provide functions for generating GLP measurement reports.

Can KERN DLB analyzers measure wastewater sludge?

They can be used with suitable samples and appropriately established thermogravimetric methods.

Is the DLB 60-4A always more accurate than the DLB 160-3A?

Not necessarily. The DLB 60-4A offers finer mass readability, but the accuracy of moisture determination also depends on the sample and drying method.

Can the heating temperature be checked?

Yes. An optional temperature calibration kit is available.

Are sample pans included?

Yes. KERN specifies ten sample pans and a protective working cover as included accessories.

Buy KERN DLB Moisture Analyzers at SMI

At SMI, laboratories, industrial manufacturers, and quality control departments can explore the professional KERN DLB moisture analyzer range.

Choose the KERN DLB 60-4A for high-resolution moisture determination with 0.1 mg readability, or the KERN DLB 160-3A for versatile routine testing with a 160 g weighing capacity.

For customers in the Americas, the KERN DLB 160-3A 110 V version provides an additional electrical configuration for compatible laboratory installations.

Both models combine 400 W halogen heating, intuitive graphical operation, multilingual user guidance, RS-232 connectivity, and GLP measurement reporting.

Whether you need a laboratory moisture analyzer, a halogen moisture balance for industrial quality control, or a high-resolution moisture analyzer for plastic pellets, the KERN DLB series offers professional solutions for a wide range of applications.

Explore KERN DLB moisture analyzers at SMI and select the configuration that meets your analytical requirements, sample characteristics, and local electrical specifications.