Data loggers for complaints and evidence: Documenting measured values properly

When something goes wrong during storage, transport, production or quality assurance, the same question often...

Selecting a humidity sensor: Room sensor, duct sensor or process probe?

Humidity influences indoor climate, process safety, product quality, storage conditions, energy efficiency and condensation risks....

Calibrating measuring instruments with as-found and as-left: Why both values are important

Anyone who has a measuring instrument calibrated will often find terms such as as-found and...

Process transmitter or simple pressure transmitter: When is the higher device class worthwhile?

Pressure transmitters are available in many versions: from compact sensors for machines and systems to...

Diaphragm seal with capillary line: When a remote seal makes sense

Pressure measuring points in the process industry are not always easy to access. They are...

Thermocouple in the plastics industry: Measuring melt temperature correctly on extruders

In plastics processing, temperature directly determines product quality, process stability and reject rate. Especially on...

Installation tester shows implausible values: Test leads, loads and wiring as sources of error

When an installation tester shows implausible values, a fault in the electrical installation or in...

Coriolis measurement in dosing and filling: Measuring mass instead of volume

Dosing and filling processes must be repeatable, fast and traceable. Whether food, additives, chemicals, paints,...

Calibrating HART transmitters: Checking analog signal and digital parameters together

HART-capable transmitters are widely used in process automation. They provide a classic analog 4–20 mA...

Checking SF₆ gas quality: Correctly evaluating moisture, purity and decomposition products

SF₆ gas is used in gas-insulated switchgear as an insulating and arc-quenching gas. For the...