Product Overview
The PC420A-IS series are intrinsically safe 4-20 mA loop-powered sensors designed for use in hazardous areas. These sensors offer True RMS or peak output and are easily integrated into existing process control systems. Manufactured in an approved ISO 9001 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. The sensors require connection to certified intrinsically safe equipment with specified electrical parameters and must be installed in accordance with installation diagram 12779.
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
- Sealing: Hermetic
- Output Connector: 2 pin, MIL-C-5015 style
- Mating Connector: R6 type
- Accessories Supplied: SF6 mounting stud (metric mounting available), calibration data (level 2)
Technical Specifications
| Specification | Value |
|---|---|
| Model Series | PC420A-IS |
| Output Type | 4-20 mA loop powered |
| Output Options | True RMS or peak |
| 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 (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 |
| Weight | 162 grams |
| Mounting | 1/4-28 tapped hole |
| Recommended Cabling | J9T2A |
| Connector Pin A (Function) | Loop positive (+) |
| Connector Pin B (Function) | Loop negative () |
| Connector Shell (Function) | Ground |
| Intrinsically Safe Parameters (Uo) | 14 V < Uo < 30V |
| Intrinsically Safe Parameters (Io) | 20 mA < Io < 106 mA (linear supply only) |
| Intrinsically Safe Parameters (Po) | Po < 0.75 W |
| Intrinsically Safe Capacitance Condition | Co < Ci + Ccable |
| Intrinsically Safe Inductance Condition | Lo < Li + Lcable |
| Maximum Cable Length | 100 ft (31 m) |
| Ccable (for 100 ft) | 6 nF |
| Loop Resistance Calculation (RL) | RL = (VDC power 10 V) / 20 mA |
| RL (max resistance) at 20 VDC | 400 |
| RL (minimum wattage capability) at 20 VDC | 1/4 watt |
| RL (max resistance) at 24 VDC | 600 |
| RL (minimum wattage capability) at 24 VDC | 1/2 watt |
| RL (max resistance) at 26 VDC | 700 |
| RL (minimum wattage capability) at 26 VDC | 1/2 watt |
| Model Selection Guide (Output Type) | x = R (acceleration, RMS), P (acceleration, equivalent peak), TP (acceleration, true peak) |
| Model Selection Guide (Full Scale) | yy = 05 (5 g), 10 (10 g), 20 (20 g) |
2504151134_Amphenol-PC420AR-10-IS_C3319020.pdf
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