MAMAC Systems PR-282-4-2-A-1-2-B Transducer

The MAMAC Systems PR-282-4-2-A-1-2-B is a high-performance wet-to-wet differential pressure transducer engineered for demanding HVAC and industrial process control. This unit features a 0-30 PSID pressure range and utilizes a 100% solid-state fused silicon pressure sensor for superior linearity and long-term stability. The 4-20mA output signal (2-wire loop) ensures seamless integration with most building automation systems and industrial controllers requiring precise differential pressure monitoring. Built with a rugged 17-4 PH stainless steel monolithic cavity, it eliminates leak points by avoiding welds, O-rings, or seams. This construction makes it compatible with various media, including water, glycol, and gases. Designed for reliability in the field, it operates on a 24Vdc supply voltage and includes short circuit and reverse polarity protection. With an accuracy of ±1.0% full scale and a NEMA-1 rated enclosure, this transducer is a professional-grade solution for technicians managing complex HVAC differential pressure applications.

• All-Media Compatibility: The 316L stainless steel wetted parts allow for use with liquids and gases compatible with stainless steel.
• High Durability: Monolithic pressure cavity design prevents leaks and withstands up to 300% overpressure without zero shift.
• Precise Calibration: Features NIST traceable calibration and onboard zero/span trim POTs for field fine-tuning.
• Standardized Integration: Industry-standard 1/8" NPT process connections and unpluggable screw terminal blocks simplify installation.

Common Questions

Is the PR-282-4-2-A-1-2-B compatible with chilled water systems?
Yes, the 316L stainless steel monolithic cavity is specifically designed to be compatible with chilled water, hot water, and glycol mixtures commonly found in HVAC systems.

Can this unit be powered by 24Vac?
No, for the 4-20mA output configuration (model PR-282-4), a 12-40 Vdc supply is required. 24Vac is only applicable to Vdc output versions.

Does it support bi-directional pressure sensing?
This specific configuration is a fixed 0-30 PSID range; however, the PR-282 series platform offers bi-directional options if specified during the ordering process.

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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.