MEMS vibration sensor TcAg

for machine monitoringfor machine condition monitoringfor hydraulic applications

Overview
The TcAg (DynaLogger family) is a wireless IoT sensor designed to assess defect tendency and severity in rotating machines in line with ISO 20816. It integrates a simultaneous triaxial MEMS accelerometer and a contact temperature sensor, sending minute-by-minute telemetry to an online platform without local software installation. Product identifiers: PN 101101 · NCM 9027.89.99 · HS 9027.89 · Datasheet Version 7 · March 2026.

Platform tools

• Removal of data recorded while the machine is stopped
• Alert configuration and email notifications
• Moving averages and data smoothing
• Data aggregation and comparison between monitoring points
• Predictability metrics, including average time to alert level A2

Features

• Compact size: 36.6 × 33.6 × 18.7 mm; weight 33.8 g
• Long-life battery: 3 V cell, estimated 5-year autonomy under standard conditions
• Simple mounting: adhesive bonding directly to equipment
• Configurable telemetry: interval from 1 to 60 minutes
• True simultaneous triaxial measurement: x, y and z measured at the same time
• Remote firmware and configuration updates

Applications

• General rotating machinery condition monitoring
• Machine structures: chassis, pins, suspensions, springs and rails
• Hydraulic cylinders and coated piping
• Rail and rolling stock components: bogies, bearings, stands and rollers
• Electrical components: busbars, transformer terminals and panels
• Brakes and occupational vibration monitoring

Installation

• Choose the monitoring points. Identify machine critical points before installation.
• Use one sensor per point. TcAg is triaxial; one unit covers each monitoring point.
• Mount on rigid parts. Prefer locations near bearings, centered on the component; avoid thin fins, covers or shields.
• Align the axes. Align one sensor axis (x, y or z, marked on the body) with the machine axis.
• Cover both sides of motors. Install sensors on drive side (DS) and non-drive side (NDS) when appropriate.
• Glue the sensor. Clean the surface and apply approved adhesive over the full sensor base.

Approved adhesives (examples)

• 3M DP8810
• 3M DP8710
• 3M DP420
• 3M DP-420NS
• 3M DP-8407NS
• Loctite HY4090

Technical drawing / mounting layers (bottom view)
TcAg body · 33.6 × 18.7 mm
Metallic base · 0.7 mm
Glue · 3M DP8810, DP-8407NS or Loctite HY4090
Equipment surface

Technical specifications

• General: Dimensions 36.6 × 33.6 × 18.7 mm (1.44 × 1.32 × 0.74 in); Weight 33.8 g; Material LEXAN™; Mounting: glued; Visual signaling (LED): red / green.
• Sensors: MEMS triaxial accelerometer; Impact limit 3,000 g for 0.5 ms; Frequency response 2 kHz (±3 dB); Temperature sensor: contact type.
• Environment: Operating temperature −10 °C to 84 °C (14 °F to 183.2 °F); Certified temperature for explosive atmospheres (Tamb) −10 °C to 79 °C (14 °F to 174.2 °F); Certain batches certified up to −10 °C to 88 °C (14 °F to 190.4 °F). Note: operation below 0 °C reduces battery life (~50% at −20 °C).
• Power: Battery voltage 3 V; Estimated autonomy 5 years (telemetry every 5–30 minutes at 20–60 °C).
• Communication: Bluetooth 5.3 (2,400–2,483.5 MHz); Free-field range 100 m (depends on obstacles/interference and receiver); RF output power 0.4 dBm.
• Telemetry: Monitoring interval 1 to 60 min; Measured metrics: RMS acceleration, RMS velocity, contact temperature; Temperature resolution 0.01 °C; Frequency bands 3 Hz to 2.5 kHz (adjustable); Dynamic range up to ±16 g; Memory 51,200 samples (adjustable).
• Certifications / protection: IECEx / ATEX / INMETRO (varies by batch); IP66 / IP68 / IP69K as specified for certified batches.