Contact and vibration sensor TcAs

Overview
The wireless TcAs sensor identifies early symptoms of machine failure modes and defects in accordance with ISO 20816. Equipped with true simultaneous triaxial MEMS accelerometers and a contact temperature sensor, TcAs monitors rotating and structural assets such as motors, pumps, suspensions, servers, pipelines and valves. The solution includes an online platform with analysis tools for continuous asset health monitoring and no local installation requirement.

Wireless IoT Monitoring - Features

• One of the smallest sensors on the market
• Long battery life (estimated 5 years under standard monitoring conditions)
• Easy glued mounting; approved adhesives listed by manufacturer
• High spectral resolution — up to 91,200 spectral lines (uniaxial)
• Over 200 time- and frequency-based metrics across configurable bands for alerting
• Monitoring of rotating machines according to ISO 20816
• True simultaneous triaxial measurement and remote firmware updating

Main Applications

• Motors, pumps and fans
• Machine structures: chassis, suspensions, springs, rails
• Pulleys and roller bearing housings
• Cardan shafts
• Bearings (advanced defect detection, stages 3–4)
• Lower-criticality assets requiring continuous or periodic monitoring

Spectral Monitoring and Waveform - Analysis Tools

• Spectrum and spectral waterfall
• Waveform: linear, circular and orbital
• Frequency filters and spectral envelope (demodulation)
• Cepstrum and autocorrelation
• Advanced multiband and envelope metrics for fault diagnosis

Technical specifications

• Model / Denomination: TcAs
• Dimensions: 36.6 mm x 33.6 mm x 18.7 mm (1.44 in x 1.32 in x 0.74 in)
• Weight: 33.8 g
• Material: LEXAN™
• Mounting: Glued (approved adhesives)
• Visual signaling (LED): Red/green
• Accelerometer: MEMS triaxial
• Impact limit: 3,000 g in 0.5 ms
• Operating temperature: -10 °C ≤ T ≤ 84 °C
• Certified operating temperature (explosive atmospheres): as specified per certification batch
• Battery voltage: 3 V; Battery autonomy: ~5 years (standard conditions)
• Wireless: Bluetooth® 5.3 (2,400–2,483.5 MHz); RF output power: 0.4 dBm; Free-field range (reference): 100 m
• Continuous monitoring (telemetry) interval: 1–60 min; telemetry metrics: RMS acceleration, RMS velocity, contact temperature
• Temperature resolution: 0.01 °C
• Frequency bands (telemetry/spectral): 3 Hz to 2.5 kHz (adjustable)
• Frequency response (±3 dB): up to 2.1 kHz (spectral)
• Dynamic range / amplitude range: ±16 g; spectral noise density > 220 μg/√Hz
• Memory: 51,200 samples (adjustable); sample rate (spectral): up to 5,040 kHz
• Minimum frequency resolution: 0.012 Hz; minimum amplitude resolution: 16 mg
• Lines of resolution (LOR): 91,200 (uniaxial) and 30,400 (triaxial)
• Max. collection time: 72.4 s (uniaxial) / 24.1 s (triaxial)
• Advanced spectral metrics: multiband RMS, envelope RMS, peak-to-peak, kurtosis, FC/FC+, carpet energy, 1X energy and harmonics, envelope fault frequencies (BPFO/BPFI/BSF/FTF)
• Certifications: ANATEL, CE, ACMA, FCC, IC, INMETRO, IECEx, ATEX, UKCA, ICASA (varies by batch)
• Ingress protection (explosive atmosphere variants): IP66 / IP68 / IP69K (per certification)
• Installation notes: mount centrally on rigid parts near bearings; for motors, install on drive side (DS) and non-drive side (NDS) for complete monitoring
• Compliance: Designed for monitoring rotating machines in accordance with ISO 20816