Author Archives: Lukas Achtelik
4–20 mA signal on the pressure transmitter fluctuates: Cause in the sensor, wiring or process?
If the 4–20 mA signal of a pressure transmitter fluctuates, the fault is often immediately...
Pressure sensor clogged or responding slowly: What to do with viscous, contaminated or crystallizing media?
If a pressure sensor suddenly responds slowly, delivers implausible values or only returns with a...
Zeroing a digital pressure gauge correctly: When is zero adjustment necessary?
If a digital pressure gauge does not show exactly 0.00 bar in a depressurized state,...
Monitoring temperature in the control cabinet: When is a data logger useful?
When a control cabinet becomes too warm, the problem often does not become apparent immediately....
Preparing for VDE testing: Which measurements must be carried out on site?
When a VDE test is due, many companies are initially unsure what is actually inspected...
RCD trips constantly: Narrowing down the fault with a leakage current clamp
If an RCD, also known as a residual current device, trips constantly or sporadically, the...
Condensation in the system: How to detect dew point problems early
Condensation in industrial systems is an often underestimated problem. It does not only occur when...
Digital multimeter or two-pole voltage tester: Which device is right and when?
Digital multimeters and two-pole voltage testers are often used for similar tasks in practice. Both...
Pressure transmitter for level measurement shows incorrect values: Correctly accounting for mounting height, density and zero point
If a pressure transmitter used for level measurement provides incorrect values, the cause is often...
4–20 mA pressure sensor provides no signal: Checking the wiring correctly
If a 4–20 mA pressure sensor does not provide a signal, a sensor defect is...