Product Overview
The Wilcoxon PC420A-DA series dual output sensors are loop-powered acceleration sensors designed for 24/7 monitoring of overall machine vibration. These sensors integrate easily with existing PLC, DCS, or SCADA systems, providing continuous trending and alerting users to changing machine conditions to guide maintenance prioritization. Offering a choice of peak equivalent, true RMS, or true peak output, these sensors are suitable for a wide range of industrial requirements. The 4-20 mA output is proportional to acceleration vibration, while the dynamic signal output, derived from an internal buffered amplifier, allows for in-depth analysis. Manufactured in an approved ISO 9001 facility, these sensors are built for reliability in demanding environments.
Product Attributes
- Brand: Wilcoxon Sensing Technologies (An Amphenol Company)
- Origin: USA
- Certifications: ISO 9001 approved facility
- Material: 316L stainless steel case
- Sealing: Hermetic
- Output Type: 4-20 mA loop powered with dynamic vibration output
- Dynamic Output Signal: Derived from internal buffered amplifier
- Power Requirement: 4-20 mA loop powered
Technical Specifications
| Specification | Details |
|---|---|
| Model Series | PC420A-DA dual output series |
| Output, 4-20 mA | Full scale, 20 mA, 5% |
| Frequency Response (4-20 mA) | 10% 3 dB: 10 Hz - 1.0 kHz; 3 dB: 4.0 Hz - 2.0 kHz |
| Repeatability (4-20 mA) | 2% |
| Transverse Sensitivity (4-20 mA, max) | 5% |
| Dynamic Output Sensitivity | 10% 100 mV/g |
| Dynamic Output Full Scale | 20 g |
| Dynamic Output Frequency Response | 3 dB: 2.5 Hz - 10 kHz |
| Amplitude Nonlinearity (max) | 1% |
| Resonant Frequency (mounted, nominal) | 25 kHz |
| Transverse Sensitivity (max) | 5% |
| Power Requirements (2-wire loop power) | Voltage at sensor terminals: 12 - 30 VDC |
| Loop Resistance (at 24 VDC, max) | 700 |
| Turn on Time (4-20 mA loop) | < 30 sec |
| Dynamic Output Bias Voltage | +3.3 VDC, re: connector pin B |
| Dynamic Output Noise (equiv. g: 2.5 Hz - 10 kHz) | 2 mg |
| Grounding | Case isolated, internally shielded |
| Temperature Range | 40 to +85C |
| Vibration Limit | 250 g peak |
| Shock Limit | 2,500 g peak |
| Sensing Element Design | PZT ceramic / shear |
| Weight | 162 grams |
| Mounting | 1/4-28 tapped hole |
| Output Connector | 3 pin, MIL-C-5015 style |
| Mating Connector | R6G type |
| Recommended Cabling | J9T3A (3-conductor shielded, yellow Teflon jacket) |
| Connections | Pin A: loop positive (+) Pin B: loop negative (), dynamic common Pin C: dynamic output Shell: ground |
| Model Selection Guide Example | PC420Ax-yy-DA: x (output type: R=RMS, P=peak, TP=true peak), yy (full scale: 05=5g, 10=10g, 20=20g), DA (dynamic output: 100 mV/g) |
| Accessories Supplied | SF6 mounting stud; calibration data (level 2) |
| Loop Resistance Calculation Note | RL = (DC supply voltage 10 V) / 20 mA |
| Minimum RL Wattage Capability | 12 VDC: 1/8 watt; 20 VDC: 1/4 watt; 24 VDC: 1/2 watt; 26 VDC: 1/2 watt; 30 VDC: 1/2 watt |
2412111044_Amphenol-PC420VR-05-DA_C3319156.pdf
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