7402-040-00 - Eddy Current Vibration Probe - 40mV/mm/s IP67 Stainless Industrial Sensor

1. Machinery Vibration Transmitter Overview​

The ProvibTech 7402-040-00 is a precision industrial vibration transmitter engineered for continuous condition monitoring of critical rotating equipment. Featuring an ​integrated IEPE accelerometer​ and ​4-20mA loop-powered output, this device measures velocity RMS (0-40mm/s) with ​​±1% full-scale accuracy​ across a ​10Hz–1kHz frequency range. Its ​anodized aluminum housing​ provides ​IP66 protection​ against dust and high-pressure water jets, while ​DIN-rail mounting​ (per EN 60715) enables seamless integration into control cabinets. Operating across ​​-40°C to +85°C​ with ​ATEX/IECEx Zone 22 certification, it delivers ISO 10816-compliant vibration data for predictive maintenance of pumps, motors, compressors, and fans in power plants, refineries, and manufacturing facilities. The transmitter's two-wire design simplifies installation while providing real-time machinery health insights through standard process control systems.

​2. Key Technical Specifications​

• ​Measurement Range: 0-40mm/s RMS velocity (±1% FS accuracy)
• ​Frequency Response: 10Hz–1kHz (±3dB) with 10Hz high-pass filter
• ​Electrical:
  • 2-wire 4-20mA loop-powered (18-30V DC)
  • 500Ω max loop resistance
  • Reverse polarity protection
• ​Environmental:
  • IP66 (IEC 60529)
  • Operating Temp: -40°C to +85°C
  • Vibration Resistance: 10g (10-150Hz per IEC 60068-2-6)
• ​Mechanical:
  • Dimensions: 22.5×90×110mm (W×H×D)
  • DIN-rail mounting (35mm)
  • Terminal Blocks: 0.2-2.5mm²
• ​Certifications:
  • ATEX II 3G Ex ec IIC T85°C Gc
  • IECEx Ex ec IIC T85°C Gc
  • SIL 2 (IEC 61508 PFHD 1.8×10⁻⁸/h)

​3. Industrial Predictive Maintenance Applications​

This transmitter serves essential roles in asset health monitoring:

• ​Power Generation: Steam turbine bearing monitoring per API 670
• ​Oil & Gas: Centrifugal pump cavitation detection in ATEX Zone 22 areas
• ​Water Treatment: Cooling tower fan imbalance detection
• ​HVAC Systems: Chiller vibration trending in commercial buildings
• ​Mining Operations: Conveyor drive gearbox health assessment
• ​Marine Engineering: Engine room auxiliary equipment surveillance
• ​Pulp & Paper: Dryer section roller bearing fault detection
• ​Chemical Processing: Agitator shaft misalignment monitoring
  Its 40mm/s velocity range is optimized for general machinery applications where ISO 10816 Severity Zone B (2.8-7.1mm/s RMS) provides early warning of developing faults in medium-sized rotating equipment.

​4. Functional Advantages​

• ​Simplified Installation:
  Loop-powered 2-wire design reduces cabling costs
  Tool-free DIN-rail mounting (EN 60715 compliant)
• ​Measurement Accuracy:
  Automatic temperature compensation (-40°C to +85°C)
  True RMS velocity calculation (ISO 10816-1 compliant)
• ​Environmental Robustness:
  IP66-rated housing withstands washdown environments
  Conformal-coated electronics resist 95% humidity
• ​Safety Compliance:
  ATEX/IECEx Zone 22 intrinsically safe design
  Galvanic isolation >1.5kV AC
• ​Diagnostic Capabilities:
  4mA "live zero" detects cable breaks
  22mA output signals over-range conditions
• ​Lifecycle Efficiency:

  15-year MTBF (IEC 61709)
  Maintenance-free solid-state design

​5. Signal Processing & Safety Functions​

​Measurement Workflow:

1. ​Vibration Sensing:
   • Piezoelectric accelerometer generates charge proportional to acceleration
2. ​Signal Conditioning:
   • 10Hz high-pass filter removes low-frequency artifacts
   • Analog integration converts acceleration to velocity
3. ​RMS Conversion:
   • True RMS calculation over 1-second window
4. ​Output Scaling:
   • 4mA = 0mm/s RMS
   • 20mA = 40mm/s RMS
   • Linear scaling: 0.4mA/mm/s

​Safety & Diagnostic Features:

• ​Alarm Thresholds:
  Configurable via DIP switches:
  • Warning: 16mA (32mm/s RMS)
  • Alarm: 18mA (36mm/s RMS)
• ​Fault Detection:

  ​Output​	​Condition​
  <3.6mA	Sensor/cable fault
  >21.5mA	Over-range condition
  0mA	Power loss

• ​Fail-Safe Operation:
  De-energized state (0mA) on critical failures
  Automatic recovery after fault clearance

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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