On our expert blog we publish in-depth articles on our expertises: vibration, speed and SIL.
What does the API Standard 670 state about overspeed detection systems?
The API Standard 670 is an industry standard and describes the minimum requirements for a machine protection system (MPS). This includes, measuring radial shaft vibration, casing vibration, axial shaft position,…
6 common causes of machine vibrations
Excessive vibrations on rotating equipment like pumps, gearboxes, turbines and compressors are a clear sign that the equipment is not functioning properly. Equipment that is showing excessive vibrations will most…
Istec oil-tight bearing temperature sensors
Do you prefer a PDF version of this whitepaper? Click here » A completely oil-tight bearing temperature sensor range to prevent oil-leakage Temperature sensors are used in many industrial applications…
Case study AVR: replacing a Bently Nevada BN3500 to an Istec SpeedSys 200 overspeed detection system
AVR is specialized in processing various types of residual waste and converting this waste into energy and raw materials for households and businesses. In their plant in the Botlek (Rotterdam)…
Application note: Jaquet T4x2 obsolescence and alternative
TE Connectivity has announced on 4th June 2021 to discontinue all special versions of the Jaquet T400 family. Only the T401 (383Z-05307) and T411 (384Z-05601) will still be commercially available.…
How to maintain the SIL-rating of a machine protection system
The SIL-rating of a SIL loop degrades over time. Therefore the safety integrated function (SIF) of the safety instrumented system (SIS) must be tested with a certain frequency, which is usually determined…
4 first checks when installing, commissioning and troubleshooting an overspeed protection system
It is essential to verify the functioning of every individual component of an overspeed protection system. This can be done during its installation, commissioning / turnarounds or troubleshooting. As this…
6 causes of overspeed on rotating machinery
Overspeed situations on rotating machinery should be prevented at all costs. Even the slightest overspeed situation could lead to mechanical stress that causes rotating machine parts to deform. More serious…
Explained: voting structures of overspeed protection systems
Voting, regarding overspeed protection systems, can be defined by the number of safety loops that should switch to the safe state when an overspeed situation is detected. The desirable voting…
Why periodic proof-tests of overspeed protection systems are essential
Overspeed protection systems have a critical function in the balance between the safety and availability of rotating machinery. These protection systems should be proof-tested periodically to verify the system logic…