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 hazardous locations. Installation must comply with diagram 12779 for correct grounding of the safety barrier. The apparatus must be connected to certified intrinsically safe equipment with specified electrical parameters.
Product Attributes
- Brand: Wilcoxon Sensing Technologies
- Origin: USA
- 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: ISO 9001
- Case Material: 316L stainless steel
- Sensing Element: PZT, shear
- Output Type: 4-20 mA loop powered
- Intrinsic Safety Parameters: 14 V < Uo < 30V, 20 mA < Io < 106 mA (linear supply only), Po < 0.75 W, Co < Ci + Ccable, 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 | Value |
|---|---|
| Model Selection Guide | Output Type: x (4-20 mA output type) Full Scale: yy (e.g., 05 = 5 g, 10 = 10 g, 20 = 20 g) Output Signal: R = acceleration, RMS; P = acceleration, equivalent peak; TP = acceleration, true peak |
| 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: ground |
| Loop Resistance Calculation (RL) | RL = (VDC power 10 V) / 0.020 A |
| Minimum RL Wattage Capability | 20 VDC: 1/4 watt (400 max) 24 VDC: 1/2 watt (600 max) 26 VDC: 1/2 watt (700 max) |
2506301128_Amphenol-PC420AP-10-IS_C3319060.pdf
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