Non-contact Shaft Measurement (Relative Vibration & Position)
SensiChecker KS05
Highlights:
Fast and precise determination of eddy current sensor measurement circuit sensitivity
Verification of the complete measurement chain (probe, cable, driver) in its original state
Reproducible distance change in defined steps (0.2 mm or 10 mil)
Integrated reference material made of typical shaft steel (42CrMo4 / AISI 4140)
Optional use directly on the machine or on the original rotor possible
Easy execution by one person (e.g., with a multimeter)
Significantly higher informative value than mere GAP adjustment
Applications:
Verification of eddy current measurement chains, axial position measurement control, troubleshooting implausible vibration values, commissioning of turbocompressors, maintenance and overhaul of vibration monitoring systems, comparative measurements between sensors and systems
Description
Finally determine measurement circuit sensitivity reliably
The SensiChecker KS05 is a practical testing device for determining and verifying the measurement circuit sensitivity of eddy current displacement measurement systems – precisely where it matters in practice: on the actually installed measurement chain.
Unlike classic calibrators, not only the probe is considered in isolation, but the entire system consisting of probe, cable, and driver is tested. This reliably detects typical errors such as damaged cables, incorrect components, or aged electronics – problems that often go unnoticed during operation and can lead to significantly distorted vibration values.
The integrated reference material made of 42CrMo4 enables a reproducible and practical verification of the standard sensitivity (typically 8 mV/µm). By precisely adjusting the probe distance in defined "click" steps, an exact characteristic curve of the measurement system is recorded.
A decisive advantage: With the optional adapters, the measurement can be performed directly against the original shaft material on the machine. This is the only way to determine the actual measurement circuit sensitivity under real conditions – the basis for correct readings and reliable limit values.
The SensiChecker is therefore not a "nice-to-have," but a tool for anyone who wants to know if their vibration monitoring is truly accurate – and not just looks good.
Relevant practical questions and further guidance
Our FAQs provide initial guidance. If you want to delve deeper, contact us – the real solutions emerge through dialogue.
No.
There are numerous cases where systems display 20–40% incorrect readings, without anyone noticing.
The compressor then appears to run smoothly – but is actually unprotected.
Unfortunately, that's a misconception.
Even with new installations, there were already significantly incorrect sensitivities identified – often due to wrong components or parameter settings.
The measurement chain can be tested under realistic conditions – including cabling and drivers.
And: It allows direct measurement against the original waveform data, exactly where it matters.
Because they enable a defined, reproducible change in distance – without measurement uncertainties from manual re-measurement.
The adjustment accuracy is significantly better than with traditional micrometer screws.
Because it takes place directly on the real system – and not under idealized laboratory conditions.
The result is not “theoretically correct”, but operationally relevant.
No.
the test can be completed quickly – often even by a single person.
Whenever decisions are based on vibration values:
→ Commissioning
→ After overhauls
→ For unusual or "too good" values
People trust a display that might be incorrect
– and make expensive or dangerous decisions based on it.
Most systems are never fully audited.
SensiChecker can reveal whether your values are robust – or merely appear reassuring.
Downloads
You can download product information here. Please feel free to contact us for any further inquiries!
