| Feature |
Specification |
| Model / Catalog Number |
Spirax Sarco PA420 (Level Preamplifier Series) |
| Output Signal & Type |
4 - 20 mA / Loop-powered two-wire level transmitter |
| Compatibility |
Compatible with all Spirax Sarco capacitance probes & current input controllers/transmitters |
| Voltage Drop & Loop Range |
9 - 26.4 Vdc / Max load 500 Ω |
| Body Material & Construction |
Austenitic Stainless Steel (300 series) with DIN 43650 connector |
| Ambient Operating Limits |
0 °C to 70 °C / Min water conductivity 5 µS/cm (5 ppm) |
| Condition & Support |
Brand New Original | 1-Year Warranty & 24/7 Technical Support |
Performance Overview
The Spirax Sarco PA420 is a high-precision, loop-powered two-wire level preamplifier designed to work seamlessly with capacitance level probes. It accurately amplifies measured capacitance and converts it into a direct 4-20 mA output proportional to liquid level in steam boilers and process tanks. Featuring a robust stainless steel body, simple two-button commissioning, and clear dual-colored LED status indicators, it provides reliable performance for industrial control systems.
🚀 Key Performance Benefits
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Direct 4-20mA Output: Converts probe capacitance directly into a proportional analog signal compatible with standard PLCs and controllers.
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Easy Commissioning: Features a simple two-button setup and dual green/red LED status indication for error or alarm confirmation.
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Rugged Stainless Steel Build: Tubular austenitic stainless steel body designed to screw securely onto level probes without disturbing installation.
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Verified Quality & Support: Backed by a 1-year warranty, 24/7 technical assistance, and real stock pre-shipment photo/video verification.
⚙️ YingZhou Industrial Automation Integration
