Product Overview
The PC420A-IS series are intrinsically safe, 4-20 mA loop-powered sensors designed for reliable operation in hazardous areas. These sensors offer true RMS or peak output and are easily integrated into existing process control systems. Manufactured in an ISO 9001 approved facility, they are certified for use in Class I, Div 1 Groups A, B, C, D T3C and II 1 G Ex ia IIC T4 Ga environments. Installation must comply with diagram 12779 for proper grounding of the safety barrier and connection to certified intrinsically safe equipment.
Product Attributes
- Brand: Wilcoxon Sensing Technologies
- Origin: USA
- Company Affiliation: An Amphenol Company
- Certifications: Class I, Div 1 Groups A, B, C, D T3C Ta = 85C max; II 1 G Ex ia IIC T4 Ga -40C Ta +85C
- Manufacturing Standard: Approved ISO 9001 facility
- Case Material: 316L stainless steel
- Sensing Element: PZT, shear
- Output Type: 4-20 mA loop powered
- Safety Parameters: 14 V < Uo < 30V, 20 mA < Io < 106 mA (linear supply only), Po < 0.75 W; Co < Ci + Ccable and Lo < Li + Lcable
- Maximum Cable Length: 100 ft (31 m)
- Ccable: 6 nF for 100 ft
- Accessories Supplied: SF6 mounting stud (metric mounting available); calibration data (level 2)
- Output Connector: 2 pin, MIL-C-5015 style
- Mating Connector: R6 type
- Recommended Cabling: J9T2A
Technical Specifications
| Specification | Details |
|---|---|
| Model Selection Guide | PC420Ax-yy-IS x (4-20 mA output type): R = acceleration, RMS; P = acceleration, equivalent peak; TP = acceleration, true peak yy (full scale): 05 = 5 g (49 m/sec2); 10 = 10 g (98 m/sec2); 20 = 20 g (196 m/sec2) |
| Output, 4-20 mA | Full scale, 20 mA, 5% |
| Frequency Response | 10% 3 dB: 10 Hz - 1.0 kHz; 4.0 Hz - 2.0 kHz |
| Repeatability | 2% |
| Transverse Sensitivity (max) | 5% |
| Power Requirements (2-wire loop power) | Voltage at sensor terminals: 12 - 30 VDC |
| Loop Resistance (1 at 24 VDC, max) | 600 |
| Turn on Time (4-20 mA loop) | <30 sec |
| Grounding | Case isolated, internally shielded |
| Operating Temperature Range | 40 to +85 C |
| Vibration Limit | 250 g peak |
| Shock Limit | 2,500 g peak |
| Sealing | Hermetic |
| Weight | 162 grams |
| Mounting | 1/4-28 tapped hole |
| Connections | Pin A: loop positive (+) Pin B: loop negative () Ground: shell |
| Loop Resistance Calculation (RL) | RL = (VDC power 10 V) / 0.020 A |
| Minimum RL Wattage Capability (at 24 VDC) | 1/2 watt |
2412111045_Amphenol-PC420ATP-10-IS_C3319124.pdf
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