Calibrating a pressure switch: check switching point, reset point and hysteresis in both directions
A pressure switch is supposed to switch at 6.0 bar. During the test, the pressure...
Radar level measurement in a stilling well: correctly considering pipe diameter, openings and deposits
A radar level sensor operates unstably on a vessel with a highly agitated liquid surface....
Electromagnetic flowmeters in partially filled pipes: correctly assessing electrode position, empty-pipe detection and measurement errors
An electromagnetic flowmeter shows a stable flow value even though an air pocket has visibly...
Grounded or ungrounded thermocouple: balancing response time, ground loops and electrical isolation
A Type K thermocouple is installed directly in a metallic machine component and is intended...
Differential pressure transmitter shows zero point offset after pressurization: check line pressure effect and overload
A differential pressure transmitter initially indicates the correct value of 0 mbar when depressurized. The...
Measure pressure before and after the screen changer: detect contamination via differential pressure in extrusion
The melt pressure upstream of an extruder screen changer is increasing continuously. Is there a...
MQTT QoS 0, 1 or 2 for measurement data: balancing delivery reliability and data volume
A sensor transmits its measured value to a broker via MQTT every second. Under normal...
Pneumatic Pressure Calibration After Rapid Pressure Changes: Consider Adiabatic Temperature Effects and Stabilization
During pneumatic pressure calibration, a test point is often approached as quickly as possible. A...
Diffusion or Pump Gas Detector: Choosing the Right Sampling Time, Hose Length and Operating Mode
The available multi-gas detector has suitable sensors. Can the device simply be switched on at...
