TXA-72900 - Eddy Current Vibration Probe - 90mV/mm/s IP67 Stainless Industrial Sensor

1. Extreme-Performance Vibration Sensor Overview​

The ProvibTech TXA-72900 is a high-fidelity IEPE accelerometer engineered for mission-critical vibration monitoring in the most demanding industrial environments. Featuring a ​robust titanium housing (Grade 5 Ti-6Al-4V)​​ with ​integral mineral-insulated cable, this sensor delivers ±1% accuracy across a ​100g measurement range​ with ​50mV/g sensitivity. Its ​hermetically laser-welded construction​ achieves ​IP68/IP69K protection​ against high-pressure washdowns (150 bar), corrosive chemicals (pH 0.5-14), and temporary submersion (3m depth). Operating from ​​-55°C to +150°C​ with ​ATEX/IECEx Zone 21 certification, it incorporates ​TEDS (IEEE 1451.4) memory​ for plug-and-play calibration. Designed for gas turbines, rocket test stands, and heavy mining equipment, this sensor provides uncompromising performance where standard accelerometers fail, with SIL 2 compliance per IEC 61508 ensuring functional safety in critical applications.

​2. Critical Technical Specifications​

• ​Measurement Performance:
  Range: ±100g peak (±1% FS)
  Sensitivity: 50mV/g ±3% @ 25°C
  Frequency Response: 0.5Hz–10kHz (±3dB)
• ​Environmental Resilience:
  IP68 (3m/24hr) / IP69K (150 bar @ 85°C)
  Temperature: -55°C to +150°C (300°C peak)
  Shock Survival: 10,000g (IEC 60068-2-27)
• ​Electrical Specifications:
  Constant Current: 2-20mA (4mA typical)
  Noise Floor: <100μg/√Hz @ 1Hz
  TEDS Memory: Stores calibration/SN/date
• ​Mechanical Construction:
  Housing: Titanium alloy (M5×0.8 threaded)
  Cable: 2m mineral-insulated stainless steel
  Weight: 50g
• ​Phase & Linearity:
  Phase Shift: <1° @ 1kHz
  Non-linearity: <0.5% FS
• ​Certifications:
  ATEX II 2G Ex ia IIC T150°C Ga
  IECEx Ex ia IIC T150°C Ga

​3. Ultra-Demanding Industrial Applications​

This accelerometer excels in extreme operating environments:

• ​Aerospace Test Rigs: Rocket engine vibration monitoring during static fires
• ​Gas Turbine Hot Sections: Blade vibration at 150°C exhaust streams
• ​Hypersonic Wind Tunnels: Shock wave impact measurement
• ​Mining Explosive Drilling: Blast vibration analysis in methane atmospheres
• ​Nuclear Reactor Coolant Pumps: Primary loop surveillance
• ​Steel Continuous Casters: Mold oscillation monitoring at 1400°C proximity
• ​Deep-Sea Mining ROVs: Hydraulic cutter head vibration
• ​Rocket Propulsion Testing: Combustion instability detection
  The titanium housing withstands chloride stress corrosion in offshore environments, while the 150°C continuous rating exceeds standard industrial sensors by 50%, enabling direct mounting on steam turbines and combustion equipment.

​4. Functional Advantages​

• ​Thermal Stability:
  <±0.02%/°C sensitivity drift (-55°C to +150°C)
  Quartz shear-mode design minimizes pyroelectric effects
• ​Signal Integrity:
  Mineral-insulated cable provides 120dB EMI immunity
  Ground loop isolation via double-shielded construction
• ​Hazardous Area Safety:
  Intrinsic safety barriers (Ui=5V, Ii=10mA, Pi=0.015W)
  Explosion-proof containment up to 150°C surface temp
• ​Corrosion Defense:
  Titanium resists H₂S/seawater/pH 0.5-14
  2,000hr salt spray resistance (ISO 9227)
• ​Calibration Efficiency:
  TEDS auto-configuration reduces setup time by 80%
  NIST-traceable calibration included
• ​Mechanical Durability:
  10,000g shock survivability
  Resonance frequency: 35kHz

​5. Sensing Operation & Diagnostics​

​Measurement Workflow:

1. ​Piezoelectric Conversion:
   • Shear-mode quartz generates charge proportional to acceleration
2. ​Signal Conditioning:
   • Ultra-low-noise JFET amplifier
   • 0.5Hz high-pass filter removes thermal drift
3. ​Output Delivery:
   • Voltage output: ±5V full-scale (50mV/g)
   • Current draw: 4mA ±0.5mA indicates health

​Diagnostic Hierarchy:

​Safety Integration:

• Automatic short-circuit protection
• Hermetic seal monitors (resistance <10⁹Ω triggers fault)
• Galvanic isolation >2kV AC

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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