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Specifications
Mfr. Part #:
PC420AR-20-DA
Key Attributes
Model Number:
PC420AR-20-DA
Product Description
Product Overview
The Wilcoxon PC420A-DA series offers dual output, loop-powered acceleration sensors designed for continuous 24/7 machine vibration monitoring. These sensors integrate seamlessly with existing PLC, DCS, or SCADA systems, providing overall machine vibration data for trending and alerting users to changing conditions. The sensors feature a 4-20 mA output proportional to acceleration vibration and a dynamic signal output derived from an internal buffered amplifier, allowing for in-depth analysis. Users can select between peak equivalent, true RMS, or true peak output options to best suit their industrial requirements.
Product Attributes
- Brand: Wilcoxon Sensing Technologies
- Company: An Amphenol Company
- Certifications: Manufactured in an approved ISO 9001 facility
- Sensing Element Design: PZT ceramic / shear
- Case Material: 316L stainless steel
- Sealing: Hermetic
- Output Connector: 3 pin, MIL-C-5015 style
- Mating Connector: R6G type
- Recommended Cabling: J9T3A (3-conductor shielded, yellow Teflon jacket)
- Origin: USA
Technical Specifications
| Specification | Details |
|---|---|
| Model Series | PC420A-DA dual output series |
| Product Type | Acceleration loop powered sensors with dynamic vibration output |
| Model Selection Guide | Format: PC420x-yy-DA x (4-20 mA output type): R = RMS output, P = calculated peak output, TP = true peak output yy (4-20 mA full scale): 05 = 5 g, 10 = 10 g, 20 = 20 g DA: acceleration, 100 mV/g |
| Accessories Supplied | SF6 mounting stud; calibration data (level 2) |
| 4-20 mA Output | Full scale: 20 mA, 5% |
| Frequency Response (4-20 mA) | 10% : 10 Hz - 1.0 kHz 3 dB : 4.0 Hz - 2.0 kHz |
| Repeatability (4-20 mA) | 2% |
| Transverse Sensitivity (max, 4-20 mA) | 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, Dynamic) | 1% |
| Resonant Frequency (mounted, nominal) | 25 kHz |
| Transverse Sensitivity (max, Dynamic) | 5% |
| Power Requirements (2-wire loop power) | Voltage at sensor terminals: 12 - 30 VDC |
| Loop Resistance (max, at 24 VDC) | 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 |
| Weight | 162 grams |
| Mounting | 1/4-28 tapped hole |
| Connections | Pin A: loop positive (+) Pin B: loop negative (), dynamic common Pin C: dynamic output Shell: ground |
| Loop Resistance Calculation | RL (max resistance) = (DC supply voltage - 10 V) / 20 mA Minimum RL wattage capability: (0.0004 x RL) |
| Example Loop Resistance & Wattage | 12 VDC: 100 , 1/8 watt 20 VDC: 500 , 1/4 watt 24 VDC: 700 , 1/2 watt 26 VDC: 800 , 1/2 watt 30 VDC: 1,000 , 1/2 watt |
2411061722_Amphenol-PC420AR-20-DA_C3319024.pdf
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