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. They integrate easily with existing PLC, DCS, or SCADA systems. The sensors provide a 4-20 mA output proportional to acceleration vibration and a dynamic signal output derived from an internal buffered amplifier. Users can choose between peak equivalent, true RMS, or true peak output options to best fit their industrial requirements.
Product Attributes
- Brand: Wilcoxon Sensing Technologies (An Amphenol Company)
- Origin: USA
- Certifications: ISO 9001 approved facility
- Sensing Element: PZT ceramic / shear
- Case Material: 316L stainless steel
- Sealing: Hermetic
- Output Options: Peak equivalent, true RMS, or true peak
- Dynamic Output Signal: Derived from internal buffered amplifier
- Powering: Loop powered (4-20 mA)
- Accessories Supplied: SF6 mounting stud; calibration data (level 2)
Technical Specifications
| Specification | Details |
|---|---|
| Model Series | PC420A-DA dual output series |
| Product Type | Acceleration loop powered sensors with dynamic vibration output |
| 4-20 mA Output Type | R = RMS output, P = calculated peak output, TP = true peak output |
| 4-20 mA Full Scale | 05 = 5 g (49 m/sec), 10 = 10 g (98 m/sec), 20 = 20 g (196 m/sec) |
| Dynamic Output Type | DA = acceleration, 100 mV/g |
| 4-20 mA Output (Nominal) | Full scale, 20 mA, 5% |
| Frequency Response (4-20 mA) | 10 Hz - 1.0 kHz ( 10%), 4.0 Hz - 2.0 kHz ( 3 dB) |
| Repeatability (4-20 mA) | 2% |
| Transverse Sensitivity (max) | 5% |
| Dynamic Output Sensitivity | 10% 100 mV/g |
| Dynamic Output Full Scale | 20 g |
| Dynamic Output Frequency Response | 2.5 Hz - 10 kHz ( 3 dB) |
| Amplitude Nonlinearity (max) | 1% |
| Resonant Frequency (mounted, nominal) | 25 kHz |
| 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 |
| Output Connector | 3 pin, MIL-C-5015 style |
| Mating Connector | R6G type |
| Recommended Cabling | J9T3A (3-conductor shielded, yellow Teflon jacket) |
| Connections (3 pin connector) | Pin A: loop positive (+) Pin B: loop negative (), dynamic common Pin C: dynamic output Shell: ground |
| Dimensions | 1.12" dia. x 2.80" (approx.) |
Note on Loop Resistance: Maximum loop resistance (RL) can be calculated by: RL = (VDC power 10 V) / 20 mA. Minimum RL wattage is determined by: (0.0004 x RL). Lower resistance is allowed, greater than 10 recommended.
2411061722_Amphenol-PC420AR-10-DA_C3319008.pdf
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