Industries · Measurement & laboratory technology

In the end, the figure someone relies on is right

A reading decides a batch, a diagnosis, an invoice. For that, we develop electronics and firmware for measuring, test and laboratory instruments, pre-test EMC in-house and test every board at the end of the line.

Why projects start

Typical starting points

  • The successor instrument

    The predecessor has been measuring for fifteen years, components are discontinued, and the customer wants to see the instrument on the lab network. The successor needs new electronics, an LADS OPC UA or SiLA interface and the update path the Cyber Resilience Act now requires.

  • The instrument has to stay verifiable

    Meters and scales used for billing fall under legal metrology. Legally relevant software must be identifiable and protected against inadmissible changes. Changes to it can require a renewed conformity assessment.

  • Testing and adjustment in series production

    Every board needs programming, a functional test and adjustment at the end of the line, with a record per serial number. At small and medium volumes, the cost per tested board has to stay affordable.

Regulation

Regulatory framework for measuring and laboratory instruments

  • IEC 61010-1

    Electrical safety for measurement, control and laboratory equipment: creepage distances, protection class, insulation. We design the circuit accordingly and deliver the evidence.

  • IEC 61326-1

    EMC for the same class of equipment; sensitive analogue circuitry must withstand interference and emit none. We measure in-house during development, so the approval laboratory receives an instrument that has already passed once.

  • Cyber Resilience Act

    Applies to every instrument with a network, radio or USB data interface; medical devices are exempt, measuring instruments are not. Reporting obligations since 11 September 2026, product requirements from 11 December 2027. We take on monitoring vulnerabilities and providing updates to the agreed extent, on request for as long as the instrument is on the market.

  • IVDR

    For in-vitro diagnostics we deliver the development documentation to IEC 62304.

  • Legal metrology

    For instruments under legal metrology we take into account the applicable requirements of weights-and-measures law and the relevant WELMEC guides. Legally relevant software is made identifiable and protected against inadmissible changes. Software separation and updates we assess within the respective conformity assessment procedure.

  • IEC 61010-1
  • IEC 61326-1
  • Cyber Resilience Act
  • IVDR
  • Legal metrology

We work to these standards and regulations.

A reading is a promise. The electronics keep it.

Manufacturers of measuring and laboratory equipment we have developed with

  • Labsystems
  • Luftmeister
  • Janitza
  • halstrup-walcher

Matching platform modules

Products that save time in measurement projects

  • Logo qdTest
    Production test

    qdTest

    Programming, testing and adjusting every board at the end of the line. Results go straight into the ERP system over the network.

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  • Logo qdHardwarePlattform
    Hardware

    qdHardware Platform

    Handheld or benchtop instrument based on the qdSOM module, with Buildroot as the Linux base. Your team builds the measurement application, with no separate board project.

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  • Logo qdCoreX
    Operating system

    qdCoreX

    Buildroot-based Linux with a mainline LTS kernel. The device side for updates, logging and certificates is already built in.

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  • Logo qdCloud
    IoT platform

    qdCloud

    Fleet overview, updates and remote access for connected devices. Hosted in Europe or on your own infrastructure.

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Services

The services behind it

  • Systems Engineering

    Requirements, architecture and system boundaries before the first board exists.

  • Hardware Engineering

    Analogue, power and high-speed electronics, designed for ten years of component availability.

  • Embedded Software Engineering

    Firmware, embedded Linux and the application on top, for devices with a long service life.

  • AI Engineering

    Recognising patterns and anomalies in measurement series, on the device or across the whole fleet.

  • Verification

    Unit tests through EMC measurement, with reports you can present in an audit.

  • Functional Safety

    Safety concept, safety requirements and the route to certification.

  • Cyber Security

    Secure boot, signed updates and vulnerability management throughout the service life.

What manufacturers ask us before starting

Do you build the test station as well?

Yes, with qdTest for small and medium volumes, or as a custom test setup. We provide the test sequence, limits and test record.

Does the Cyber Resilience Act apply to our instrument?

Yes, as soon as it has a network, radio or USB data interface. The exemption for medical devices does not apply to measuring instruments. We clarify at the outset which requirements affect your instrument.

Do you measure EMC in an accredited lab?

No, not ourselves. We pre-test in-house during development; the approval measurement takes place at the accredited laboratory, with an instrument that rarely holds surprises there.

Tell us about your instrument.

Tell us about the instrument, the measurement task and your schedule. We will tell you how we would approach the project and where we see risks for regulatory approval and series production. The assessment, up to an indicative price, is free of charge.

Florian Seibold

Managing Director

info@querdenkerengineering.de

+49 7807 890 80 10