MAMAC Systems PR-282-3-3-B-1-2-B Pressure Transducer

The MAMAC Systems PR-282-3-3-B-1-2-B is a professional-grade wet-to-wet differential pressure transmitter designed for high-accuracy monitoring of liquids and gases in HVACR and industrial automation systems. Engineered with a rugged 16-gauge steel NEMA 1 enclosure, this unit features a 316 stainless steel monolithic pressure cavity that eliminates the risk of leaks associated with welds or O-rings. It provides a linear 0-10Vdc output signal over a 0-50 PSID pressure range, ensuring high-resolution data for building automation controllers. Optimized for 24Vac supply voltage, the PR-282-3-3-B-1-2-B utilizes piezoresistive silicon sensing technology to maintain ±1.0% full scale accuracy even under significant thermal shock. The 1/8" NPT process connections and removable terminal block facilitate efficient field installation, while NIST traceable calibration and short circuit protection provide the reliability required by mechanical contractors for mission-critical pressure sensing applications.

• All-Media Compatibility: The 316L stainless steel wetted parts allow for seamless integration with both liquid and gaseous media commonly found in HVAC loops.
• Leak-Proof Construction: A monolithic pressure cavity design ensures zero-leak integrity without the use of seams, bonds, or internal seals.
• High Overpressure Tolerance: Capable of withstanding a burst pressure up to 500% of the rated range, protecting the piezoresistive sensor from system spikes.
• Field Serviceability: Features an unpluggable screw terminal block for simplified wiring and accessible zero/span trimmers for precise field adjustments.
• Stability: Advanced integrated circuits provide a temperature-compensated signal across a broad 0°F to 180°F operating range.

What is the maximum static pressure this unit can handle?
The MAMAC PR-282 series supports a maximum static pressure of 200% of the differential pressure range, ensuring it remains operational in high-pressure hydronic systems.

Can I use this for refrigerant pressure monitoring?
Yes, as long as the refrigerant is compatible with 316 stainless steel. The solid-state design and NEMA 1 protection make it suitable for various machinery room environments.

Does this transducer require a regulated power supply?
This specific model is designed for a 12-35 VAC or 12-40 VDC unregulated supply, allowing for flexible power sourcing from typical 24V HVAC transformers.

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.