KERN FKS Stainless Steel Compact Scales – IP65 Protection, Smart Weight Classification and Industrial Connectivity

Professional compact weighing solutions for manufacturing, food processing, quality control and laboratory applications

The KERN FKS Stainless Steel Compact Scales combine space-saving construction, a hygienically designed stainless steel weighing platform and advanced weighing functionality in a versatile instrument for professional environments.

Developed as part of the KERN IoT-Line, the FKS series goes beyond conventional bench weighing. It supports efficient weight determination, checkweighing, counting, classification and electronic data management in modern production and quality assurance processes.

With weighing capacities from 1.5 kg to 30 kg, readabilities from 0.1 g to 2 g and a consistent weighing platform measuring 228 × 228 mm, the series provides five configurations for different industrial requirements.

A distinctive feature is its multicolour LED classification indicator, allowing operators to recognise predefined weight categories and tolerance conditions at a glance.

Combined with IP65 protection, an integrated alibi memory, real-time clock and optional communication interfaces, the KERN FKS is designed for organisations that require reliable weighing results and efficient workflows.

Whether used for food portioning, industrial component inspection, packaging operations, raw material handling or laboratory routine weighing, the FKS offers a practical balance between compact dimensions and professional functionality.

Key advantages of the KERN FKS series

• Stainless steel weighing platform: Hygienic, easy-to-clean design

• IP65 protection: Dust-tight construction and protection against water jets

• Compact, low-profile design: Platform height of just 60 mm

• Five weighing capacities: From 1.5 kg to 30 kg

• Readability: From 0.1 g to 2 g, depending on model

• Generous weighing surface: 228 × 228 mm

• Multicolour LED classification: Visual identification of weight categories

• Checkweighing functionality: Fast evaluation against predefined limits

• Parts counting: Efficient quantity determination for uniform components

• IoT-ready architecture: Integration into digital weighing environments

• KERN Communication Protocol (KCP): Standardised device communication

• Integrated alibi memory: Electronic storage of weighing results

• Real-time clock: Time-related documentation of measurements

• GLP/ISO-oriented reporting: Support for traceable quality processes

• Optional rechargeable battery: Greater flexibility across workstations

KERN FKS models – Technical comparison

The FKS range consists of five models designed around the same compact platform architecture.

The common design and operating concept simplify model selection and support consistent weighing procedures across different departments.

KERN FKS 1K-5 – Fine-resolution compact weighing up to 1.5 kg

The FKS 1K-5 offers a maximum capacity of 1,500 g with 0.1 g readability.

It is particularly suitable for smaller products and routine applications where relatively small differences in weight must be identified.

Typical applications include:

• Small-batch portioning

• Ingredient weighing

• Packaging content verification

• Component counting

• Laboratory routine weighing

• Quality control of small manufactured products

KERN FKS 3K-4 – Versatile stainless steel compact scale up to 3 kg

With a maximum capacity of 3 kg and readability of 0.2 g, the FKS 3K-4 provides a practical solution for a broad range of routine weighing tasks.

It is well suited to manufacturing, packaging, material preparation and incoming goods inspection.

KERN FKS 6K-4 – Flexible industrial weighing up to 6 kg

The FKS 6K-4 combines a maximum capacity of 6 kg with 0.5 g readability.

It is designed for workplaces handling different materials, containers and product quantities throughout the working day.

Its combination of stainless steel platform, IP65 protection and integrated weighing functions makes it suitable for varied industrial processes.

KERN FKS 15K-4 – Professional compact scale up to 15 kg

The FKS 15K-4 offers a 15 kg maximum capacity with 1 g readability.

It is suitable for larger products, production batches and routine industrial weight checks.

Typical applications include:

• Production line inspection

• Food portioning

• Packaging quality control

• Material preparation

• Product weight classification

• Warehouse and receiving operations

KERN FKS 30K-3 – High-capacity compact weighing up to 30 kg

The FKS 30K-3 is the highest-capacity model in the series.

It provides a maximum capacity of 30 kg and readability of 2 g while retaining the compact 228 × 228 mm weighing surface.

This model is particularly attractive where heavier goods must be weighed at a workstation with limited available space.

When selecting this model, users should consider both the total load and whether the product can be positioned safely and securely on the weighing platform.

Stainless steel weighing platform – Designed for hygienic working environments

Practical material selection for professional weighing

One of the most important characteristics of the KERN FKS series is its hygienically designed stainless steel weighing platform.

Stainless steel is widely used in professional production and processing environments because its smooth surfaces can be cleaned efficiently and are resistant to many forms of everyday mechanical wear.

The FKS platform is designed with reduced edges and joints to simplify routine cleaning.

This makes the series particularly interesting for workplaces where product residues, dust or frequent cleaning are part of daily operations.

Benefits of the stainless steel platform

Hygienic surface design

Smooth surfaces help operators remove product residues and contamination.

Durability

The weighing platform is designed for repeated use in professional working environments.

Versatile applications

Suitable for many industrial, food processing and laboratory weighing tasks.

Straightforward cleaning

The platform can be incorporated into appropriate workplace cleaning procedures.

Professional construction

The compact design is well suited to modern production benches and laboratory workstations.

Cleaning procedures and chemical compatibility must always follow the manufacturer's instructions.

IP65 protection – Built for demanding industrial conditions

Protection against dust and water jets

The KERN FKS series features an IP65 protection rating in accordance with EN 60529.

The first digit indicates dust-tight protection.

The second digit indicates protection against water jets from different directions.

This level of protection makes the FKS suitable for many professional environments where moisture, dust or regular cleaning may be encountered.

Typical working environments

• Food processing facilities

• Packaging operations

• Manufacturing departments

• Industrial quality control

• Technical laboratories

• Material handling areas

• Production environments with elevated dust exposure

IP65 does not mean the instrument is suitable for immersion, high-pressure cleaning or unrestricted exposure to aggressive cleaning chemicals.

Operators should always observe the manufacturer's specified cleaning procedures.

Low-profile construction – Only 60 mm platform height

Compact dimensions with practical ergonomic benefits

The FKS series features a particularly low weighing platform with a height of just 60 mm.

This design makes it easier to place and remove products, containers and materials.

A low-profile scale can be especially useful when operators frequently handle relatively heavy items or tall containers.

The compact construction also helps organisations make efficient use of limited workspace.

Whether installed on a production bench, inspection station or laboratory table, the FKS can be integrated into existing work areas without requiring a large dedicated footprint.

Multicolour LED weight classification

Immediate visual feedback for industrial inspection

A distinctive feature of the KERN FKS series is the multicolour LED indicator positioned beneath the display.

It supports visual classification of weighing results according to predefined weight categories or tolerance conditions.

Depending on the configuration, up to ten different colours can be used for classification.

This feature is especially useful in repetitive industrial operations where operators must identify the relevant weight category quickly.

Example: Sorting manufactured components

A production facility manufactures components that must be separated into different weight categories.

Instead of comparing each displayed value manually against a reference chart, operators can use the LED classification indicator to recognise the relevant category.

This can help simplify repetitive sorting and inspection procedures.

Typical applications

• Industrial component classification

• Packaging weight inspection

• Product sorting

• Portion control

• Production quality assurance

• Manual inspection stations

The LED indicator provides a visual aid and does not replace the need for appropriate measurement procedures or defined acceptance criteria.

Checkweighing – Efficient control of target weights

Identify underweight, acceptable and overweight products

Checkweighing is an essential function in many industrial and packaging environments.

Operators define upper and lower weight limits.

The scale then supports the evaluation of a product against those predefined limits.

This is useful for applications where products must remain within an internally established weight range.

Example: Checking 500 g product portions

A manufacturer produces individual portions with a target weight of 500 g.

For an internal quality control process, an example acceptance range of 495 g to 505 g is established.

The FKS supports the identification of portions falling below, within or above the selected range.

These values are illustrative only and do not represent legal tolerances for prepacked goods.

Benefits of checkweighing

• Faster interpretation of weighing results

• Support for consistent portioning

• Simplified manual inspection

• Reduced need for repetitive calculations

• Clear evaluation against defined weight limits

Parts counting – Efficient quantity determination

Count uniform components by weight

The KERN FKS series includes a parts counting function.

A reference quantity is first used to determine the average individual piece weight.

The scale can then estimate the quantity of similar components from their combined weight.

This function is useful for businesses handling large quantities of relatively uniform items.

Typical applications

• Screws and nuts

• Fasteners

• Plastic components

• Electronic parts

• Packaging accessories

• Small mechanical components

• Assembly materials

Counting performance depends on factors such as individual piece weight consistency and the reference quantity used.

Additional professional weighing functions

Totalising

The totalising function supports the accumulation of multiple weighing results.

It is useful when materials are weighed in separate portions and a combined total is required.

Percentage determination

Percentage weighing enables operators to compare a current weight against a defined reference value.

This can support relative weight comparisons in routine quality control.

Hold function

The hold function can help obtain a representative displayed result under certain unstable weighing conditions through averaging.

Selectable weighing units

Different weighing units support a range of industrial and laboratory requirements.

External adjustment

The FKS is adjusted using a suitable external calibration weight.

Regular performance checks and adjustment procedures are important elements of reliable weighing practice.

KERN IoT-Line – Compact scales for connected manufacturing

Integrating weighing into digital workflows

The KERN FKS belongs to the manufacturer's IoT-Line.

This product family is designed to support the integration of weighing instruments into connected working environments.

In modern manufacturing, weighing data may be required not only for immediate inspection but also for documentation, process analysis and electronic recordkeeping.

With the appropriate configuration, the FKS can communicate with external devices and software systems.

Available interface options

• RS-232

• USB

• Ethernet

• Wi-Fi

• Bluetooth

• Analogue interfaces

Interface availability depends on the selected configuration.

Certain interfaces are optional and may require factory installation.

The required communication configuration should therefore be confirmed before ordering.

KERN Communication Protocol (KCP)

Standardised communication with external systems

The KERN Communication Protocol, or KCP, provides a standardised method of communication between compatible KERN weighing instruments and external systems.

It can support the retrieval of weighing values and certain device information through suitable communication interfaces.

Potential applications

• Transferring weighing results to computers

• Connecting scales to data collection systems

• Integrating weighing into manufacturing processes

• Supporting electronic documentation

• Communicating with compatible control systems

The functions available in a specific installation depend on the selected interface, software and system integration.

Integrated alibi memory

Electronic storage of weighing results

The KERN FKS includes an integrated alibi memory for the electronic storage of weighing results.

This functionality can support traceability and structured recordkeeping.

It is particularly useful in environments where weighing operations must be documented consistently.

Applications

• Quality assurance

• Production documentation

• Batch-related weighing records

• Internal inspection procedures

• Electronic data processing

• Documented material handling

The presence of an alibi memory does not automatically establish legal-for-trade approval.

Where regulated weighing is required, the applicable legal requirements and instrument approvals must be checked separately.

Real-time clock and GLP/ISO-oriented documentation

Supporting traceable quality procedures

The integrated real-time clock allows weighing results to be associated with date and time information.

This helps support traceability in routine measurement processes.

GLP/ISO-oriented reporting functions also assist organisations that require structured weighing documentation.

These capabilities can be useful in industrial quality assurance, technical laboratories and internal inspection systems.

The instrument's reporting features do not, by themselves, establish compliance with a particular quality management standard.

Mains power and optional rechargeable battery

Flexible use across different workstations

The KERN FKS is normally operated using an external power adapter.

The connection to the scale is IP65-protected.

An optional rechargeable battery is available for applications requiring greater mobility.

This can be useful when the scale is moved between different inspection points or temporary workstations.

Battery availability and operating conditions should be checked for the selected configuration.

KERN FKS in the food processing industry

Hygienic weighing for production and packaging

Food manufacturing relies on accurate and repeatable weighing procedures.

Ingredients must be portioned, products checked and packaging contents verified.

The KERN FKS combines a stainless steel weighing platform, IP65 protection and visual classification functions that can support these operations.

Typical applications

• Ingredient portioning

• Food product weight checks

• Packaging control

• Raw material weighing

• Product classification

• Incoming goods inspection

• Production batch verification

The suitability of a specific installation depends on the applicable hygiene procedures, cleaning requirements and product characteristics.

KERN FKS for industrial manufacturing

Weight-based inspection, sorting and quality assurance

In industrial manufacturing, weight can be an important indicator of product consistency.

Unexpected weight differences may indicate missing components, incorrect material quantities or deviations in assembly processes.

The KERN FKS supports weight-based inspection through its weighing, counting, checkweighing and classification functions.

Industrial applications

Metalworking: Weight inspection of manufactured parts and components.

Plastics processing: Checking plastic granules, moulded components and raw materials.

Packaging: Verification of filled or packaged products.

Assembly: Counting components and checking completed assemblies.

Incoming goods: Weight-based inspection of delivered materials.

Production quality control: Classification of products according to predefined weight criteria.

KERN FKS for chemical and technical laboratories

Robust compact weighing for routine applications

Technical and industrial laboratories frequently require weighing instruments capable of handling larger quantities than conventional analytical balances.

The KERN FKS can be used for suitable routine weighing and inspection tasks.

Typical laboratory applications

• Weighing technical raw materials

• Measuring powders and granules

• Preparing material mixtures

• Checking sample quantities

• Routine quality control

• Incoming material inspection

The FKS is not intended to replace high-resolution analytical balances for applications requiring milligram or sub-milligram measurement performance.

Chemical compatibility and appropriate safety procedures must be considered when handling aggressive or hazardous substances.

Selecting the right KERN FKS model

1. Maximum weighing capacity

Choose a model that can accommodate the heaviest expected load.

Remember to include containers and accessories when assessing the total load.

2. Required readability

Select a model with a suitable display increment for the intended application.

A readability of 0.1 g should not be interpreted as a guaranteed measurement accuracy of ±0.1 g.

3. Product dimensions

All models use the same 228 × 228 mm weighing platform.

Ensure that the products and containers can be positioned safely.

4. Environmental conditions

Consider dust exposure, moisture and cleaning procedures.

IP65 protection can be valuable in suitable industrial and food processing environments.

5. Connectivity requirements

Determine whether weighing data must be transmitted to external systems.

Select the required optional interface before ordering.

6. Operating location

If the instrument will be used at multiple workstations, consider the optional rechargeable battery.

Frequently asked questions about KERN FKS compact scales

What are KERN FKS Stainless Steel Compact Scales?

The KERN FKS series consists of professional compact weighing instruments with stainless steel weighing platforms, IP65 protection and integrated functions for industrial weight control, classification and counting.

What weighing capacities are available?

The series covers maximum capacities from 1.5 kg to 30 kg.

What is the readability of the KERN FKS?

Depending on the model, readability ranges from 0.1 g to 2 g.

Are KERN FKS scales waterproof?

They are rated IP65, providing dust-tight protection and resistance to water jets. They are not designed for immersion or unrestricted high-pressure washing.

Is the weighing platform made from stainless steel?

Yes. The FKS series features a hygienically designed stainless steel weighing platform.

Are KERN FKS scales suitable for food processing?

They can be suitable for a variety of food processing and packaging applications, subject to the relevant hygiene requirements and operating conditions.

What is the purpose of the multicolour LED indicator?

It provides visual feedback for predefined weight classifications or tolerance conditions.

Can the KERN FKS count individual parts?

Yes. The parts counting function estimates quantities using an average reference piece weight.

Can the scale communicate with a computer?

Yes. Suitable configurations support communication through optional interfaces and the KERN Communication Protocol.

Which communication interfaces are available?

Depending on configuration, RS-232, USB, Ethernet, Wi-Fi, Bluetooth and analogue interfaces may be available.

Does the FKS include an alibi memory?

Yes. An integrated alibi memory supports electronic storage of weighing results.

Can the KERN FKS operate on battery power?

An optional rechargeable battery is available.

Is the KERN FKS approved for legal-for-trade applications?

Legal-for-trade suitability must be verified for the exact model and configuration in the relevant country. The integrated alibi memory alone does not establish such approval.

What is the difference between a compact scale and a bench scale?

A compact scale emphasises space-efficient construction and a relatively small footprint.

The term bench scale is broader and may include larger or more conventional weighing instruments.

The KERN FKS combines compact dimensions with features commonly associated with professional industrial weighing systems.

Is the KERN FKS suitable for laboratory use?

Yes, for appropriate routine weighing and quality control tasks within the instrument's specifications. Applications requiring analytical-balance resolution should use a more suitable instrument.

Buy KERN FKS Stainless Steel Compact Scales at SMI

The KERN FKS Stainless Steel Compact Scales provide a versatile combination of compact design, hygienic weighing surfaces and advanced industrial functionality.

With five models covering capacities from 1.5 kg to 30 kg, the series supports applications ranging from small-component inspection to industrial portioning and production quality control.

The combination of IP65 protection, multicolour LED classification, parts counting, integrated alibi memory and optional digital interfaces makes the FKS particularly attractive for organisations seeking to modernise their weighing operations.

Explore the KERN FKS range and select the compact stainless steel weighing solution that matches your capacity, readability and connectivity requirements.

KERN FKS – Compact stainless steel weighing technology for modern industrial workflows.