TM0782A-K-M - Eddy Current Vibration Probe - Stainless IP67 Industrial Condition Sensor

1. ​Compact IEPE Accelerometer Overview​

The ProvibTech TM0782A-K-M is a high-sensitivity piezoelectric accelerometer engineered for precision vibration monitoring in industrial automation. Featuring an ​integrated electronics IEPE design, this sensor delivers low-noise acceleration measurements (±50g range) with ​​±5% accuracy​ across a ​2Hz–10kHz frequency response. Its ​laser-welded 316L stainless steel housing​ provides ​IP67/IP68 protection​ against dust, moisture, and temporary submersion. The "K" suffix denotes a ​integral PUR cable with radial connector, while "M" specifies ​metric M5 mounting threads. Operating across ​​-40°C to +125°C​ with ​ATEX/IECEx Zone 22 certification, this accelerometer enables predictive maintenance for motors, pumps, gearboxes, and compressors in demanding environments like oil refineries, power plants, and manufacturing facilities where space constraints require compact sensing solutions.

2. ​Critical Technical Specifications​

• ​Sensing Performance:
  Range: ±50g peak (±5% FS)
  Sensitivity: 100mV/g ±5%
  Frequency Response: 2Hz–10kHz (±3dB)
• ​Electrical:
  Constant Current Excitation: 2–20mA (4mA typical)
  Output Impedance: <100Ω
  Cable: PUR 1.5m radial connector
• ​Environmental:
  IP67 (1m/30min) / IP68 (3m/24hrs)
  Temperature Range: -40°C to +125°C
• ​Mechanical:
  Housing: 316L stainless steel
  Mounting: M5×0.5 threaded stud (2.5Nm torque)
  Weight: 28g
• ​Resonance & Shock:
  Resonance Frequency: 28kHz
  Shock Limit: 5,000g
• ​Certifications:
  ATEX II 3G Ex ec IIC T125°C Gc
  IECEx Ex ec IIC T125°C Gc

3. ​Industrial Machinery Monitoring Applications​

This accelerometer excels in critical vibration analysis scenarios:

• ​Electric Motor Bearings: Detecting early-stage bearing faults (BPFO/BPFI frequencies)
• ​Centrifugal Pumps: Cavitation monitoring in API 610-compliant systems
• ​Gearbox Diagnostics: Tooth mesh frequency analysis per ISO 10816-3
• ​Compressor Valve Trains: Impact detection in reciprocating compressors
• ​Turbine Blade Monitoring: Blade-pass frequency tracking
• ​Conveyor Drive Rollers: Bearing defect identification
• ​HVAC Fans: Imbalance detection in critical ventilation systems
• ​Hydraulic Power Units: Pump pulsation analysis
  Its compact 18×18mm footprint enables installation in confined spaces like motor end bells or gearbox housings, while the 125°C rating suits steam turbine applications.

4. ​Functional Advantages​

• ​Signal Integrity:
  Low-noise (<100μg/√Hz) IEPE electronics
  EMI/RFI shielding >80dB
• ​Environmental Resilience:
  Hermetic seal withstands 125°C steam cleaning
  Hydrolysis-resistant PUR cable (ISO 1817)
• ​Mechanical Robustness:
  5,000g shock survivability (MIL-STD-202G)
  Vibration limit: 1,000g RMS
• ​Installation Simplicity:
  M5 threading fits standard mounting pads
  Radial connector prevents cable strain
• ​Diagnostic Compatibility:
  Compatible with all IEPE-compliant analyzers
  TEDS (IEEE 1451.4) support for auto-configuration
• ​Safety Compliance:
  ATEX Zone 22 intrinsically safe design
  Galvanic isolation >1.5kV

5. ​Vibration Sensing Operation​

​Measurement Principle:

1. ​Piezoelectric Sensing:
   • Quartz crystal generates charge proportional to acceleration
2. ​Signal Conditioning:
   • IEPE constant current powers internal amplifier
   • 2Hz high-pass filter removes DC offset
3. ​Output Stage:
   • Voltage output proportional to acceleration (100mV/g)
   • Low-impedance drive (<100Ω) for long cable runs

​Diagnostic Features:

• ​Built-in Self-Test:
  Open-circuit detection via current drop
  Short-circuit protection
• ​TEDS Capability:
  Stores calibration data (sensitivity, serial, date)
  Auto-recognition by compatible analyzers
• ​Failure Modes:
  Output clamps at 0V during sensor fault
  Current drops to <2mA during cable break

Packaging & Shipping

Company Information
Xiamen ZhiCheng Automation Technology Co., Ltdit is a leading global supplier of control system components. We specialize in control systems and drives.

With many years of experience in the industrial sector, we consistently deliver the highest quality of spare parts.which make sure that all this jobs are

perfectly.

we are major in PLC,Sensors,HIM,Transmitters.

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