Wilcoxon LPS Series 4-20 mA Vibration Transducers
Product Overview
Wilcoxon's LPS Series loop-powered vibration transmitters offer a direct 4-20 mA output signal, enabling seamless integration of vibration data into Programmable Logic Controllers (PLCs) and Distributed Control Systems (DCS). This facilitates continuous monitoring of critical machinery, allowing plant personnel to trend overall vibration levels, correlate data with operating conditions, and proactively schedule maintenance. Designed for Condition Based Maintenance (CBM) programs, these self-contained units provide a reliable and cost-effective solution for machine health monitoring, reducing outages and downtime. They are available with various output signal types (peak, true peak, RMS) and measurement units (velocity or acceleration), and can be configured for specific frequency ranges or dual outputs including temperature or dynamic signals. Specialized models are available for hazardous area installations.
Product Attributes
- Brand: Wilcoxon Sensing Technologies
- Product Line: LPS Series
- Origin: USA
- Certifications: CSA (U.S. and Canada), LCIE ATEX
- Hazardous Area Certifications: Intrinsically Safe (IS), Explosion Proof (EX)
Technical Specifications
| Feature/Model | Description | Specifications |
|---|---|---|
| Measurement Units | Velocity or Acceleration | Available for condition assessment. |
| Output Signal Types | Peak, True Peak, RMS | Available for broadband LPS Series. Frequency banded versions offer Peak or RMS. |
| Output Calibration | Velocity or Acceleration | Calibrated in terms of peak, RMS, or true peak. |
| Full Scale Range | User-selectable ranges | Purchased with a specific full-scale setting, not user-adjustable. Normal vibration levels should fall within 10-20% of the full-scale range. |
| ISO 10816 Guidance | Machine Classification | Group 1: Power > 300 kW, Shaft Height 315 mm (sleeve bearings). Group 2: Power 15-300 kW, Shaft Height 160-315 mm (rolling element bearings, speed > 600 RPM). Group 3: Pumps with separate driver, Power > 15 kW. Group 4: Pumps with integrated driver, Power > 15 kW. |
| Evaluation Zones (ISO 10816-3) | Qualitative Assessment | Zone A: Newly commissioned. Zone B: Acceptable for long-term operation. Zone C: Unsatisfactory for long-term operation. Zone D: Potentially damaging severity. |
| Frequency Banded Transducers | Low Frequency Velocity | Model: PC420VP-10-B3041 Frequency Range: 3 Hz (180 RPM) to 40 Hz (2400 RPM) Application: Trending low frequencies associated with balance or alignment problems. |
| Frequency Banded Transducers | High Frequency Acceleration | Model: PC420AR-10-3223 Frequency Range: 300 Hz (18,000 RPM) to 2,000 Hz (120,000 RPM) Application: Trending frequencies associated with pump cavitation. |
| Dual Output Transducers | 4-20 mA + Dynamic Signal | Provides both 4-20 mA loop signal and broadband dynamic signal (100 mV/g acceleration or 100 mV/ips velocity). Useful for portable spectrum analyzers. |
| Hazardous Area Installations | Intrinsically Safe (IS) | CSA: Class 1, Div 1, GRPS A, B, C, D T3C Ta=85 C Max Exia ATEX: EEx ia IIC T3 -40 C < Tz < 85 C |
| Hazardous Area Installations | 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 Ta=85 C Max ATEX: EEx d IIC T3, EEx nA IIC T3 -40 C < Tz < 85 C |
| Model Numbering Convention | Example: PC420VP-10-IS | PC420: Top exit loop powered sensor VP: Velocity, Peak calibrated -10: 1.0 ips full scale range -IS: Intrinsically safe rating |
| Cabling Options | Standard and Optional | Integral cable sensors standard with 16' cable. Alternative lengths available. Options include R6, M12-4 connectors. |
2506301128_Amphenol-PC421AP-20-IS_C3319019.pdf
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