Wilcoxon LPS Series 4-20 mA Vibration Transducers
Product Overview
Wilcoxon LPS Series loop-powered vibration transmitters provide a direct 4-20 mA signal output, enabling seamless integration of vibration data into Programmable Logic Controllers (PLCs) and Distributed Control Systems (DCS). These self-contained units allow plant personnel to continuously monitor overall vibration levels, trend machine health, correlate vibration data with operating conditions, and proactively schedule maintenance. Designed for condition-based maintenance (CBM) programs, LPS transducers offer a reliable and cost-effective solution for monitoring critical machinery, even in the absence of dedicated vibration analysis technicians. They are available in various configurations to suit diverse industrial applications, including hazardous area installations.
Product Attributes
- Brand: Wilcoxon Sensing Technologies
- Origin: USA
- Certifications: CSA (U.S. and Canada), LCIE ATEX
- Hazardous Area Ratings: Intrinsically Safe (IS), Explosion Proof (EX)
Technical Specifications
| Feature/Model | Description | Details |
|---|---|---|
| Measurement Principle | Velocity or Acceleration | Velocity is the primary measurement for external case vibration. |
| Output Signal | 4-20 mA loop powered | Direct input to PLC/DCS. |
| Output Calibration Options | Peak, True Peak, RMS | Available for broadband transducers. Frequency banded versions offer Peak or RMS. |
| Full Scale Selection | User-defined, not adjustable | Selection based on normal vibration levels (10-20% of full scale) and manufacturer/ISO limits. |
| ISO 10816 Guidance | Provides classification for industrial machines | Part 3 covers machines > 15 kW with speeds between 120-15,000 RPM. |
| Equipment Groups (ISO 10816-3) | Group 1, Group 2, Group 3, Group 4 | Classified by power and shaft height, with bearing types and speed considerations. |
| Evaluation Zones (ISO 10816-3) | Zone A, B, C, D | Qualitative assessment of vibration severity and recommended actions. |
| Frequency Banded Transducers | Low Frequency (3 Hz - 40 Hz) | Model PC420VP-10-B3041. Focuses on frequencies associated with balance and alignment. |
| Frequency Banded Transducers | High Frequency (300 Hz - 2,000 Hz) | Model PC420AR-10-3223. Focuses on frequencies associated with pump cavitation. |
| Dual Output Transducers | 4-20 mA + Dynamic Signal | Provides both overall vibration (4-20 mA) and a dynamic signal (100 mV/g or 100 mV/ips) for detailed analysis with portable equipment. |
| Hazardous Area Models | Intrinsically Safe (-IS) | CSA Class 1, Div 1, GRPS A, B, C, D T3C; ATEX EEx ia IIC T3. |
| Hazardous Area Models | Explosion Proof (-EX) | CSA Class 1, Div 1, 2 GRPS A, B, C, D; Class 2, Div 1, 2 GRPS E, F, G; Class 3, Div 1, 2 T3C; ATEX EEx d IIC T3 / EEx nA IIC T3. |
| Model Numbering Convention | PC42x, PCC42x | Indicates housing, exit type, and connector options. |
| Range Codes | -05, -10, -20, -30, -50 | Corresponds to specific full-scale ranges (e.g., 0.5 ips, 1.0 ips, 2.0 ips, 3.0 ips, 5.0 ips). |
| Cabling/Connection Options | Integral Cable, M12-4, R6, J9T2A, J10, J9T4, J9T4A, J95 | Various options for connecting the transducer. |
| Example Model: PC420VP-10 | Velocity, Peak Calibrated | Full scale range of 1.0 ips. |
| Example Model: PC420VP-10-DA | Velocity, Peak Calibrated, Dynamic Acceleration Output | Full scale range of 1.0 ips with 100 mV/g dynamic output. |
| Example Model: PC420VP-10-IS | Velocity, Peak Calibrated, Intrinsically Safe | Full scale range of 1.0 ips with hazardous area certification. |
| Example Model: PC420VP-10-B3041 | Velocity, Peak Calibrated, Band-Limited (3-40 Hz) | Full scale range of 1.0 ips, focused on low frequencies. |
| Example Model: PC420AR-10-B3223 | Acceleration, RMS Calibrated, Band-Limited (300-2000 Hz) | Full scale range of 10 g, focused on high frequencies. |
2412111044_Amphenol-PC421VP-05-IS_C3319116.pdf
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