Setra 231G-MS2-3V-D Pressure Transducer

The Setra 231G-MS2-3V-D is a rugged, field-configurable wet-to-wet differential pressure transducer engineered for HVACR professionals managing high-performance building automation systems. This multi-range pressure transmitter offers eight switch-selectable ranges, covering 10, 20, 50, and 100 PSID in both unidirectional and bidirectional modes. The unit is delivered factory-assembled with a 3-valve manifold machined from solid brass, which eliminates internal process connections and potential leak points, significantly reducing labor hours during installation on chilled water or process control loops.

Built with a NEMA 4 rated cast aluminum housing and a hinged captive cover, this transducer thrives in demanding mechanical rooms. The integrated LCD display provides real-time local indication of high, low, and differential pressure, while the field-selectable output signals (4-20 mA, 0-5 VDC, 1-5 VDC, and 0-10 VDC) ensure seamless integration with any controller. Technicians can perform maintenance easily using the push-button zero or the digital port swap feature, which corrects plumbing errors via software without requiring physical pipe refitting. For liquid or gas media compatible with 17-4 PH stainless steel, the 231G-MS2-3V-D delivers the reliability required for precise pump differential pressure monitoring and flow measurement.

• Flexible Field Configuration: Features 8 selectable pressure ranges and 4 analog output options to minimize inventory and adapt to varying system requirements.
• Pre-Assembled 3-Valve Manifold: Provides a professional, leak-proof brass bypass assembly that simplifies commissioning and system isolation for maintenance.
• Advanced Sensor Technology: Utilizes dual 17-4 PH stainless steel sensors for exceptional thermal stability and resistance to long-term drift.
• NEMA 4 Durable Enclosure: The heavy-duty aluminum housing with a hinged cover protects sensitive electronics in harsh environments.
• Port Swap Logic: Eliminates the need for replumbing if the high and low lines are accidentally reversed during installation.

• How do I resolve a reversed port installation? The 231G-MS2-3V-D features a digital port swap switch inside the housing, allowing you to flip the sensor logic without disconnecting the manifold piping.
• Is this unit compatible with glycol systems? Yes, the 17-4 PH stainless steel wetted parts are compatible with most non-corrosive liquids and gases, including typical HVAC glycol concentrations.
• Can the display be used for troubleshooting? The integrated 3.5-digit LCD cycles through high-side, low-side, and differential readings, making it an essential tool for identifying pump performance issues or clogged strainers.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.