Skip to main content Skip to search Skip to main navigation
Cheap Shipping Cost
fast shipment
Advice before purchase
Purchase comfortable on account
Hotline +49 2822 7131930

5 kg Calibration Weight Button Shape Stainless Turned Stainless Steel OIML Class M1, 250 mg Tolerance - KERN

Product information "5 kg Calibration Weight Button Shape Stainless Turned Stainless Steel OIML Class M1, 250 mg Tolerance - KERN"

Take advantage of the combination of certified OIML‑class accuracy, finely turned stainless‑steel construction and a convenient knob form for reliable scale calibration; order the item directly via Metav Werkzeuge or consult our specialists for application advice.

KERN 347-13 calibration weight (OIML M1, 5 kg, stainless steel)

The KERN 347-13 is a precision 5 kg calibration weight in knob form, designed for routine verification and laboratory scale checks where certified mass values and robust handling are required.

  • OIML class M1 accuracy, tolerance 250 mg
  • Finely turned stainless steel construction
  • Knob shape for secure handling

Consistent accuracy for everyday calibration tasks

The weight meets OIML M1 requirements and carries a nominal value of 5 kg, offering a clear specification for routine and reference calibrations. Its declared tolerance 250 mg defines the maximum permissible deviation, which makes the component suitable for many industrial and laboratory applications where mid-range accuracy is required. Relating the tolerance to real measurement processes helps planners to estimate the resulting measurement uncertainty and to select appropriate verification intervals.

Robust materials that maintain measurement integrity

Manufactured from finely turned stainless steel, the mass is engineered for dimensional and surface stability. The knob shape provides safe and repeatable handling during weighing procedures, reducing the risk of contamination or accidental impacts that could alter the mass. This durable design supports long service life and reproducible results even under regular use in production or testing environments.

Workflow compatibility and calibration advice

The mass integrates smoothly into standard calibration routines and is marked for traceable identification. Note that EC-type approval of calibration weights will no longer be available from 30 November 2025; for comparable traceability and formal documentation it is recommended to obtain a DAkkS calibration, which satisfies most application requirements. The product’s German origin further supports expectations of manufacturing quality and consistent production standards.

Reducing uncertainty through certified reference masses

Using a certified reference such as this knob‑shaped 5 kg mass reduces systematic error contributions in weighing chains and simplifies uncertainty budgets. Traceable standards play a central role in quality assurance and process control, and a mid‑range test weight is often the most cost‑effective means to verify scale linearity and repeatability across typical load ranges. For laboratories and workshops seeking dependable routine metrology, this solution balances practicality with documented performance.

Contact Metav Werkzeuge in Emmerich for technical guidance or to arrange DAkkS calibration for the KERN 347-13 calibration weight and related metrology supplies

Technical Data

  • Article number: 347
  • SKU: 347-13
  • GTIN: 4045761008878
  • Manufacturer: KERN
  • Country of origin: DE

Facts

  • Nominal value: 5 kg
  • Tolerance: 250 mg
  • Dimensions (cyl.): 80 × 147 mm
  • Commodity code: 84239090

Special features

  • Material: finely turned stainless steel
  • Form: knob shape
  • OIML class: M1

FAQ

What level of accuracy does this weight provide?
The KERN 347-13 calibration weight conforms to OIML M1 standards with a tolerance of 250 mg, suitable for routine and mid‑range verification tasks.

Is this weight suitable for laboratory reference use?
Yes. The 5 kg mass and its production quality make the weight appropriate for laboratory and industrial reference applications where OIML M1 accuracy meets the required specifications.

How should the weight be calibrated after purchase?
Given the discontinuation of EC‑type approval from 30 November 2025, a DAkkS calibration is recommended to ensure traceability and comprehensive calibration documentation for the KERN 347-13.

Can the knob form affect handling and results?
The knob shape is intended to improve safe handling and repeatability; it reduces the likelihood of surface contamination and accidental impacts that could influence the mass value.

What information identifies the exact product variant?
Identification for this calibration weight includes the SKU 347-13 and GTIN 4045761008878, which refer to the KERN 347-13 5 kg OIML M1 knob weight.


KERN, Germany — Contact: info@metav-werkzeuge.com | +49 2822 7131930

Skip product gallery

Zubehör

Zwei weiße Handschuhe auf weißem Hintergrund. Die Handschuhe sind ausgefüllt aber am Handgelenk abgeschnitten. Die Handschuhe sind einmal von vorne und einmal von hinten abgebildet.
1 Pair Cotton Gloves Protecting Test Weights From Finger Oil And Moisture, For Weights Up To 2 kg - KERN

Take advantage of gentle, cotton handling and reliable contamination protection to extend the service life of precision weights; order directly from Metav Werkzeuge or contact our consultants for tailored advice. Gloves KERN 317-280 — Cotton gloves for protecting test weights up to 2 kg The Gloves KERN 317-280 are designed to protect test weights and precision masses from finger grease and moisture during everyday handling in workshops and calibration labs. Cotton construction for gentle handling Protects test weights from finger grease Suitable for test weights up to 2 kg Lightweight, reusable pair for workshop use Preserve measurement accuracy with clean handling Handling delicate masses without contamination helps to maintain precision and reduces the need for frequent recalibration. The KERN cotton gloves provide an effective barrier against finger grease and light moisture, keeping surfaces free of oils that can alter measured mass. By preventing direct contact, the gloves contribute to consistent readings and minimise the risk of measurement drift, supporting reliable quality control in routine metrology tasks. Practical protection for everyday workshop routines Lightweight and easy to store, this pair is tailored for straightforward use in production and service environments. The simple design allows quick application while handling small test weights, helping to maintain workflow speed without compromising care. Suitable for masses up to 2 kg, the gloves enable safe manipulation of common calibration weights, combining protection with operational convenience to keep processes efficient and repeatable. Why cotton is the right material for delicate tools Cotton fibres offer a soft, absorbent contact surface that decreases the transfer of oils and residues onto sensitive metal surfaces. The natural fabric reduces abrasion risk compared with harsher materials, providing gentle handling that preserves finish and mass integrity. At an almost negligible net weight, the gloves do not affect the handling ergonomics of small weights but do increase confidence in routine handling and storage practices. Contact Metav Werkzeuge for personalised advice or to secure the KERN cotton gloves from our Emmerich stock; our team will assist with product details and suitability for specific calibration needs. Technical data Article number: 317 SKU: 317-280 Manufacturer: KERN Facts Net weight: 0.01 kg Suitable for test weights up to 2 kg GTIN: 4045761003866 Special features Material: cotton Protects test weights from finger grease and moisture Supplied as one pair Segment: Test weight accessories FAQ Are these gloves suitable for precision balances? The KERN 317-280 gloves are intended to protect precision masses and are suitable for handling small test weights used with precision balances. How do the gloves protect test weights? The cotton fibres of the gloves reduce oil and moisture transfer, helping to keep the surface of test weights clean and preserving measurement accuracy. Can the gloves be used for weights above 2 kg? The gloves are specified as ideal for handling test weights up to 2 kg; heavier items may require different handling methods or protective equipment. What material are the gloves made from? The gloves are made from cotton, chosen for its gentle contact and absorbent properties. Is the KERN 317-280 pair reusable? The gloves are designed for repeated use in workshop routines, offering lightweight, practical protection for daily handling of test weights. Metav Werkzeuge — Emmerich am Rhein, Germany · eMail: info@metav-werkzeuge.com · Phone: +49 2822 7131930 · WhatsApp: +49 170 2837271

Regular price: €6.00
Product Quantity: Enter the desired amount or use the buttons to increase or decrease the quantity.
Zwei weiße Handschuhe auf weißem Hintergrund. Die Handschuhe sind ausgefüllt aber am Handgelenk abgeschnitten. Die Handschuhe sind einmal von vorne und einmal von hinten abgebildet.
Pair Leather/Cotton Gloves For Protecting Test Weights From Finger Oils And Moisture, Ideal For ≥2kg - KERN

Preserve measurement integrity by using a lightweight leather/cotton glove pair that shields calibration weights from finger oils and moisture, extending their service life and reducing cleaning intervals; order directly via Metav Werkzeuge or consult our specialists for application advice. KERN 317-290 gloves — Leather/Cotton protection for calibration weights The KERN 317-290 gloves are designed to protect calibration weights from contamination and moisture during handling in workshops and laboratories Leather-lined cotton construction for gentle handling Protects weights from finger oils and moisture Suitable for calibration weights from 2 kg Lightweight design, compact storage Preserve calibration accuracy with gentle handling Handling mass standards without protection risks surface contamination that affects repeatability and traceability. The KERN 317-290 glove pair combines leather/cotton materials to provide a soft, low-abrasion contact surface that significantly reduces transfer of finger oils and deposits. This gentle barrier supports consistent readings by limiting the need for frequent cleaning, which in turn helps to maintain calibration schedules and reduces downtime for precision equipment. Streamline daily workflows in workshop and lab A reliable handling solution simplifies routine procedures: the gloves are optimised for daily handling of weights and are particularly suited to masses from 2 kg upward, where manual manipulation is common. Their lightweight construction allows extended wear without fatigue, improving operator comfort and process throughput. By preventing contaminant transfer, the gloves help to keep weighing stations operational and reduce the frequency of weight surface maintenance. Durable solution from a trusted precision partner Selecting accessories from established manufacturers contributes to consistent quality across the supply chain. These gloves are supplied by KERN and distributed via Metav Werkzeuge, whose service model acts as a quality filter for European workshops. The combination of robust materials and proven distribution practices supports long-term reliability and a steady supply of precision accessories for industry and trade. For protected handling of calibration weights, choose the KERN 317-290 leather/cotton gloves — contact Metav Werkzeuge in Emmerich for tailored advice at info@metav-werkzeuge.com or by phone on +49 2822 7131930 Technical data Article number: 317 SKU: 317-290 GTIN: 4045761134300 Manufacturer: KERN Facts Weight: 0.01 kg Suitable for calibration weights from 2 kg eClass: 40011201 Special features Material: leather/cotton Protects calibration weights from finger oils and moisture Contents: 1 pair Intended use: handling calibration weights in workshop or laboratory FAQ Are these gloves suitable for all calibration weight sizes? The gloves are intended for use with calibration weights from 2 kg and above; for smaller masses alternative handling tools may be recommended. How do the gloves protect the weights? The leather/cotton construction of the KERN 317-290 minimises direct skin contact and reduces transfer of oils and moisture that can alter weight surfaces. Can the gloves be cleaned or reused? The gloves are designed for repeated use; follow manufacturer care instructions to maintain material performance and surface cleanliness. Will using the gloves reduce the need to clean weights? Regular use of protective gloves lowers contamination rates and consequently reduces the frequency of weight cleaning and maintenance. Who supplies these gloves through Metav? The gloves are supplied by KERN and distributed via Metav Werkzeuge (SKU 317-290) as part of precision handling accessories. KERN — address and direct contact details not provided by the supplier

Regular price: €6.60
Product Quantity: Enter the desired amount or use the buttons to increase or decrease the quantity.
Etui aus blauem Kunststoff auf weißem Hintergrund. Das Etui hat eine Zylindrische Form und ist oben von einem schwarzen Deckel abgedeckt.
5kg Wooden Case For Single Calibration Weights Unpadded, For Classes F2–M3 - KERN

Choose the combination of classic wood construction, a compact unpadded interior and compatibility with 5 kg single calibration weights for tidy, efficient storage; order the wooden case directly via Metav Werkzeuge or consult our advisors for specification support. Wooden case for single weights KERN 337-130-200 — compatible with 5 kg weights, unpadded A Wooden case designed to store and protect single calibration weights in workshop and laboratory environments, compatible with KERN weight series and suited for compact handling. Wood construction, classic look Unpadded interior for compact weights Lightweight: 0.52 kg for easy handling Stable storage that preserves calibration integrity The solid wood construction gives a firm, impact-resistant outer shell that supports safe storage and short-range transport of delicate mass standards. The unpadded interior reduces overall bulk while keeping the weight secure in its compartment; this is particularly useful where a compact footprint is required on busy workbenches. By limiting internal cushioning, the case enables quick visual inspection and removal of the weight, which aids routine calibration workflows and speeds up verification procedures. Organised compatibility for standard workshop sets Designed specifically for single calibration weights, the case accepts nominal 5 kg masses and is compatible with the KERN series models listed by the manufacturer. The low tare of 0.52 kg keeps added handling mass to a minimum, simplifying weighing procedures where tare accuracy matters. Clear labelling and a tailored cavity layout help maintain order in calibration kits, so technicians can locate the correct single weight rapidly and reduce time spent searching during checks and audits. Practical workshop durability and handling benefits Manufactured by KERN, the enclosure balances traditional material choice with workshop practicality: wood provides a durable casing that withstands routine handling while remaining easy to store. The straightforward design supports efficient stacking and transport within a calibration lab or between service calls. For operations that favour compact, no-frills storage over padded protection, this case offers a reliable solution that complements precision equipment without adding unnecessary volume. For precise storage of 5 kg single weights, order the KERN wooden case via Metav Werkzeuge today or ask our consultants for assistance with compatibility and integration into existing calibration kits Technical data SKU: 337-130-200 GTIN: 4045761006539 Manufacturer: KERN Core measurements Weight: 0.52 kg Suitable for nominal weight: 5 kg HS tariff number: 84239090 eClass: 21100103 Special features Material: Wood Unpadded interior Fits single weights KERN 337 / 347 / 357 / 367 Origin: DE FAQ Is this case suitable for a 5 kg calibration weight? The wooden case is specified for nominal 5 kg single weights and is designed to accommodate those masses securely. Which KERN weight models fit in the case? The case accepts the single weight designs listed by KERN, including the 337, 347, 357 and 367 series. Does the case include interior padding for shock protection? No, the interior is unpadded; this reduces bulk and allows quick access to the weight while maintaining a compact storage footprint. Is the wooden case heavy to carry when loaded? With an empty mass of 0.52 kg, the case adds minimal tare, keeping handling lightweight when used with a single 5 kg mass. KERN, Germany. Address and contact not specified.

Regular price: €87.00
Product Quantity: Enter the desired amount or use the buttons to increase or decrease the quantity.
Etui aus blauem Kunststoff auf weißem Hintergrund. Das Etui hat eine Zylindrische Form und ist oben von einem schwarzen Deckel abgedeckt.
5kg Plastic Case For Single Calibration Weights, For Classes F1–M3 - KERN

Take advantage of the combination of reliable protection, compact handling and clear calibration compatibility to keep workshop weights organised and audit-ready. Order the protective case directly via Metav Werkzeuge or consult our specialists for specification support. KERN Plastic Case for Single Weights 347-130-400 — for 5 kg weights, Classes F1–M3 A KERN Plastic Case for Single Weights 347-130-400 is a durable storage solution designed to protect and organise precision calibration weights up to 5 kg, suitable for accuracy classes F1–M3 in laboratory and workshop environments Plastic case for single calibration weights Holds nominal value 5 kg Suitable for accuracy classes F1–M3 Fits button and compact weight designs Secure storage designed for routine calibration workflows A compact, robust case reduces handling risks and helps maintain precision over repeated use. The protective plastic construction shields calibration pieces from knocks, dust and contamination, which directly supports traceability and service intervals. Designed for a 5 kg nominal weight in the button/compact form factor, the case contributes to consistent measurement results by limiting environmental exposure and accidental damage, a pragmatic choice for calibration benches and mobile test stations. Practical organisation that speeds up daily processes The slim format and defined interior mean single weights are easy to locate and return, improving bench turnaround and reducing downtime. The case’s light build (approx. 0.02 kg) and compact footprint support efficient storage and transport, while the clear assignment to accuracy classes F1–M3 simplifies inventory management: higher-precision weights (F1) can be segregated from routine check weights (M3) for correct application and documentation during maintenance cycles. Compatibility that supports compliance and inspection readiness By matching a wide range of calibration classes, the case ensures correct housing for lab-grade and workshop weights alike, so records and procedures remain consistent during audits. The design aligns with metrological best practice by keeping items clean, undamaged and readily identifiable; this helps demonstrate process control and keeps equipment audit-ready. Where calibration frequency and careful handling are required, the case offers a simple, effective means to maintain standards. Contact Metav Werkzeuge in Emmerich to secure the KERN plastic case 347-130-400 for reliable storage of calibration weights; email info@metav-werkzeuge.com or call +49 2822 7131930 Technical Data SKU: 347-130-400 Manufacturer: KERN Material: Plastic Country of origin: DE Tariff number: 84239090 Measurements and capacities Nominal value: 5 kg Applicable classes: F1–M3 Product weight: 0.02 kg GTIN: 4045761008885 Compatibility and features For single weights, button/compact design Case made of plastic Intended for calibration storage and transport FAQ What size of weight fits this case? The KERN plastic case 347-130-400 is designed for a single nominal weight of 5 kg and for button/compact weight formats Which accuracy classes are suitable for storage in this case? The case is specified for accuracy classes F1–M3, covering high-precision laboratory weights through routine workshop check weights Is the case suitable for mobile use between job sites? Yes, the lightweight plastic construction and compact form make the case suitable for transport and mobile calibration tasks Does the case protect weights from contamination and damage? The robust plastic housing reduces exposure to dust and mechanical impact, helping to preserve the condition of calibration weights for consistent measurement results Can the case be used for weights other than the 5 kg nominal? The case is optimised for a single 5 kg weight in the button/compact design; other sizes or forms may not fit securely Metav Werkzeuge, Emmerich am Rhein, Germany, info@metav-werkzeuge.com, +49 2822 7131930

Regular price: €17.00
Product Quantity: Enter the desired amount or use the buttons to increase or decrease the quantity.
Blaues Kunststoff Etui für Einzelgewichte. Das Etui ist zylindrisch mit Rillen auf der Seite. Es sieht ein bisschen so aus wie eine Dose für Filme oder eine Regentonne in Miniatur.
5kg Aluminium-Protected Case For Single Test Weights Button/Compact Padded, E1–M3 - KERN

Take advantage of a robust combination of aluminium protection, a padded interior and compatibility with precision weight classes to keep calibration weights safe and inspection-ready. Order the case directly via Metav Werkzeuge or consult our specialists for application advice. Aluminium-protected case for single calibration weights, padded and durable The Aluminium-protected case offers secure transport and storage for single calibration weights used in precision weighing applications. Padded interior for secure storage Aluminium protective shell Designed for single calibration weights Suitable for classes E1–M3 Protection that preserves calibration reliability A well-engineered storage solution reduces handling risks and preserves measurement integrity. The Aluminium-protected case combines a robust aluminium shell with a padded interior to absorb shocks and prevent surface damage to high-accuracy weights. For laboratories and workshops that rely on traceable mass values, this reduces the need for frequent recalibration by helping to maintain the condition of the weights. The result is fewer interruptions in quality checks and a more reliable calibration chain. Practical organisation for compact weights Internally, this case is arranged for organised stowage of single calibration weights in button or compact form. The layout supports quick visual checks and efficient handling during routine calibration tasks, which shortens preparation time and minimises handling errors. Clear separation of individual weights also prevents contact between items, maintaining each mass artefact’s surface finish and nominal value. Lightweight, durable material for everyday use Constructed from aluminium, the case strikes a balance between low weight and mechanical protection, making it suitable for regular transport between workstations or to external calibration services. The material resists corrosion and provides reliable shielding against dents and impacts without adding excessive bulk. For environments where tools and test equipment are frequently on the move, the aluminium construction delivers long service life with consistent protective performance. Built for standards and dependable workflows Designed for nominal 5 kg weights and compatible with accuracy classes E1–M3, the case supports a range of high-precision applications. Choosing a purpose-built storage solution reduces the probability of handling-related drift and helps maintain compliance with calibration protocols. The combination of protective structure and practical organisation supports efficient workflows in metrology, quality assurance and precision workshops. For secure storage and transport of KERN single calibration weights, contact Metav Werkzeuge in Emmerich for expert advice and reliable supply Technical data Article number: 317-130-600 SKU: 317-130-600 GTIN: 4045761222731 Manufacturer: KERN Material: Aluminium Suitable for nominal weight: 5 kg Suitable for classes: E1–M3 Padded interior: yes Core specifications Case weight: 1.1 kg Tariff number: 84239090 ECLASS: 21100103 Special features Padded interior Aluminium-protected shell For single weights (button/compact) Origin: CN FAQ Is this case suitable for 5 kg E1 calibration weights? Yes. The Aluminium-protected case is specified for nominal 5 kg weights and is compatible with accuracy classes E1–M3, making it suitable for high-precision applications. How does the padding protect high-accuracy weights? The padded interior prevents direct contact and cushions shocks, which helps to preserve the surface and mass values of weights stored in the Aluminium-protected case. Can the case be used for transport between sites? Yes. The aluminium shell and padded interior provide protection for transport; the case is designed for everyday movement of calibration weights without excessive weight penalty. Which weight forms fit inside the case? The internal layout is arranged for single calibration weights in button or compact form, ensuring organised storage and easy access. Who manufactures this case and what is the SKU? The case is manufactured by KERN, SKU 317-130-600, and is intended for secure handling of precision calibration weights. Manufacturer: KERN; Distributor: Metav Werkzeuge, Emmerich am Rhein; Email: info@metav-werkzeuge.com; Phone: +49 2822 7131930

Regular price: €53.00
Product Quantity: Enter the desired amount or use the buttons to increase or decrease the quantity.