TURCK Expands CMVT Series with CMVT-M8TE Vibration Sensor

TURCK has expanded its CMVT condition monitoring portfolio with the single-axis CMVT-M8TE sensor, engineered to monitor rotating machinery including drives, gearboxes, pumps, centrifuges, and industrial fans. Rather than compressing vibration measurements internally into static threshold figures, the unit streams raw acceleration data directly from its MEMS sensing element using the IO-Link specification's Binary Large Object (BLOB) transfer protocol. Operating at sampling rates up to 64 kHz, the sensor captures up to 320,000 discrete samples per measurement burst, enabling maintenance teams to differentiate between dynamic unbalance, shaft misalignment, and incipient rolling-element bearing damage.

Evaluation Standards and Frequency Analysis
Vibration evaluation adheres to DIN ISO 10816-3 criteria, while integrated algorithmic diagnostics generate a bearing health assessment across four standardized condition tiers in accordance with DIN ISO 13373-3.

Frequency-domain processing is supported through the TURCK Automation Suite (TAS) software, which incorporates native BLOB transfer and Fast Fourier Transform (FFT) analysis within its vibration monitor module. Triggered by an operator input, the tool captures a configurable recording window lasting a few seconds to display cyclic parameters, time-series acceleration plots, and frequency spectra. All captured data points can be exported in CSV format. Standalone verification requires only the sensor, an IO-Link master module, and a PC.

Integration Architecture and Mounting Options
System integration accommodates three distinct control architectures. For localized warning indicators, two onboard PNP switching outputs actuate independently upon designated threshold events to drive status lights directly without higher-level PLC intervention. For integrated machine architectures, cyclic process parameters stream continuously over IO-Link or via a 4–20 mA analog output. For in-depth diagnostic routines, control programs can initiate the IO-Link BLOB transmission directly to execute raw data processing inside the automation controller.

Mechanical mounting accommodates varied machine interfaces via an integrated M8 male screw thread, supported by optional magnetic bases and threaded thread-adaptation hardware.

Additional Context
This section details technical specifications not included in the original news release.

Industrial MEMS piezoresistive and capacitive accelerometers deployed for wideband machine diagnostics operate with high resonant frequencies to maintain flat frequency responses across the standard 10 Hz to 10 kHz vibration bandwidth. According to DIN ISO 10816-3 (superseded by ISO 20816-3), vibration severity is determined using root-mean-square (RMS) vibration velocity across defined machine support classes (rigid versus flexible foundations) to assess mechanical imbalance, looseness, and structural resonance. High-frequency sampling up to 64 kHz is essential to calculate high-frequency acceleration metrics—such as True Peak, Crest Factor, and Kurtosis—as well as demodulated envelope analysis (Hilbert transform) needed to isolate bearing fault frequencies, including Ball Pass Frequency Outer Race (BPFO), Ball Pass Frequency Inner Race (BPFI), and Ball Spin Frequency (BSF), in accordance with DIN ISO 13373-3. The IO-Link BLOB transfer mechanism facilitates the acyclic transport of large structured data blocks over standard unshielded three-wire industrial cables using IO-Link COM3 (230.4 kbaud) transmission speeds, bypassing the standard 32-byte cyclic process data exchange limitation to stream raw vibration arrays directly to edge processing gateways.

Edited by Romila DSilva, Induportals Editor, with AI assistance.