Product Overview
The Wilcoxon Sensing Technologies PCH420V series is a HART-enabled vibration transmitter designed for continuous asset monitoring. It features a 4-20 mA output with the added capability of digital communications via the HART protocol (7.0). This allows for user configuration of sensors, multi-drop cable installations, and direct communication with HART-enabled DCS or PLCs. The PCH420V series offers three user-configurable bands for vibration analysis, enabling flexible full-scale range and filter settings. Benefits include reduced cabling requirements and simplified integration into existing plant infrastructure, leading to improved connectivity, efficiency, and machinery health decision-making. Hazardous area certified models are available.
Product Attributes
- Brand: Wilcoxon Sensing Technologies
- Company: An Amphenol Company
- Origin: USA
- Certifications: Class I, Div 2 Groups A, B, C, D; Class I, Zone 2 AEx/Ex nA nC IIC T4; II 3 G Ex nA nC IIC T4 Gc (for -HZ models)
- Manufacturing Standard: Approved ISO 9001 facility
- Case Material: 316L stainless steel
- Sensing Element: PZT, shear
- Sealing: Hermetic
- Connector Options: 2 pin MIL-C-5015 (-R6 models) or 4 pin M12 (-M12 models)
Technical Specifications
| Specification | Details |
|---|---|
| Model Series | PCH420V |
| Output Signal | 4-20 mA + HART 7.0 |
| Device Variables | PV - Vibration band 1, SV - Vibration band 2, TV - Vibration band 3 |
| Programmable PV Band | 0.5 - 5.0 in/sec, peak (12.7 - 127 mm/sec, peak) |
| HART Analysis Bands | Independently programmable: low-pass, high-pass, band-pass (max 2, simultaneous) |
| Signal Detection Options | RMS, peak, true peak |
| Minimum Analysis Bandwidth | 10 Hz |
| Frequency Response | 10% (10 Hz - 1 kHz), 3 dB (3.0 Hz - 1.95 kHz) |
| Measurement Accuracy | 5% at 25C, 100 Hz, 1 ips full scale |
| Power Requirements | 2-wire loop power: 12 - 30 VDC |
| Current Draw | 3.8 - 22 mA |
| Loop Resistance (max) | 600 at 24 VDC (Note 1) |
| Turn on Time (4-20 mA loop) | 30 seconds |
| Grounding | Case isolated, internally shielded |
| Temperature Range | 40 to +105 C (40 to +221F) |
| Vibration Limit | 500 g peak |
| Shock Limit | 5,000 g peak |
| Mounting | 1/4-28 tapped hole |
| Dimensions (approx.) | -R6 model: 2.75" (69.9 mm) height, 0.97" (24.6 mm) diameter -M12 model: 2.52" (64.0 mm) height, 0.97" (24.6 mm) diameter |
| Model PCH420V-R6(-HZ) | 4-20 mA + HART velocity sensor with 2 pin MIL-C-5015 connector |
| Model PCH420V-M12(-HZ) | 4-20 mA + HART velocity sensor with 4 pin M12 connector |
| Hazardous Area Certification (-HZ models) | Class I, Div 2 Groups A, B, C, D; Class I, Zone 2 AEx/Ex nA nC IIC T4; II 3 G Ex nA nC IIC T4 Gc (Tamb: -40C to +105C) |
| Hazardous Area Installation Notes | Cable suitable for Zone 2, minimum IP54 ingress protection, connection requires tool for separation, grounding via metal mounting stud if required. |
Note 1: Maximum loop resistance (RL) can be calculated by: VDC power 10.3 V / 22.8 mA. HART communication requires a minimum of 250 resistance.
2410311216_Amphenol-PCH420V-M12_C3319001.pdf
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