Product Overview
The Wilcoxon PC420A-DA series offers dual output, loop-powered acceleration sensors with dynamic vibration output. These sensors are designed for 24/7 monitoring of overall machine vibration, enabling continuous trending and alerting users to changing machine conditions to guide maintenance prioritization. With a choice of peak equivalent, true RMS, or true peak output, they easily integrate into existing process control systems like PLCs, DCS, or SCADA. The 4-20 mA output is proportional to acceleration vibration, and the dynamic signal output, derived from an internal buffered amplifier, requires the 4-20 mA loop to be powered. Manufactured in an approved ISO 9001 facility, these sensors are ideal for industrial applications requiring in-depth vibration analysis.
Product Attributes
- Brand: Wilcoxon Sensing Technologies (An Amphenol Company)
- Origin: USA
- Certifications: ISO 9001 approved facility
- Case Material: 316L stainless steel
- Sealing: Hermetic
- Sensing Element Design: PZT ceramic / shear
- Output Connector: 3 pin, MIL-C-5015 style
- Mating Connector: R6G type
- Recommended Cabling: J9T3A (3-conductor shielded, yellow Teflon jacket)
Technical Specifications
| Specification | Value |
|---|---|
| Product Series | PC420A-DA dual output series |
| Function | Acceleration loop powered sensors with dynamic vibration output |
| 4-20 mA Output Type Options | R = RMS output, P = calculated peak output, TP = true peak output |
| 4-20 mA Full Scale Options | 05 = 5 g (49 m/sec2), 10 = 10 g (98 m/sec2), 20 = 20 g (196 m/sec2) |
| Dynamic Output Type | DA = acceleration, 100 mV/g |
| Accessories Supplied | SF6 mounting stud; calibration data (level 2) |
| 4-20 mA Output Full Scale | 20 mA, 5% |
| 4-20 mA Frequency Response | 10% 3 dB: 10 Hz - 1.0 kHz; 4.0 Hz - 2.0 kHz |
| 4-20 mA Repeatability | 2% |
| 4-20 mA Transverse Sensitivity (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 |
| Dynamic Output Amplitude Nonlinearity (max) | 1% |
| Dynamic Output Resonant Frequency (mounted, nominal) | 25 kHz |
| Dynamic Output 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 |
| Weight | 162 grams |
| Mounting | 1/4-28 tapped hole |
| Connector Pin A Function | Loop positive (+) |
| Connector Pin B Function | Loop negative (), dynamic common |
| Connector Pin C Function | Dynamic output |
| Shell Connection | Ground |
| Loop Resistance Calculation (max) | RL = (VDC power 10 V) / 0.020 A |
| Minimum RL Wattage Calculation | (0.0004 x RL) |
| Max Loop Resistance at 12 VDC | 100 |
| Min RL Wattage Capability at 12 VDC | 1/8 watt |
| Max Loop Resistance at 20 VDC | 500 |
| Min RL Wattage Capability at 20 VDC | 1/4 watt |
| Max Loop Resistance at 24 VDC | 700 |
| Min RL Wattage Capability at 24 VDC | 1/2 watt |
| Max Loop Resistance at 26 VDC | 800 |
| Min RL Wattage Capability at 26 VDC | 1/2 watt |
| Max Loop Resistance at 30 VDC | 1,000 |
| Min RL Wattage Capability at 30 VDC | 1/2 watt |
2412111044_Amphenol-PC420VR-05-DV_C3319054.pdf
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