MAMAC Systems PR-264-R1-VDC Pressure Sensor

The MAMAC Systems PR-264-R1-VDC is a professional-grade HVAC pressure transducer engineered for reliable performance in demanding building automation and industrial environments. This unit features a solid state fused silicon pressure sensor integrated into a 316 stainless steel monolithic pressure cavity. By eliminating internal O-rings, welds, and seams, this design ensures a leak-proof construction suitable for both liquids and gases compatible with stainless steel. Technicians can optimize inventory by utilizing the field selectable pressure ranges of 0-25, 0-50, and 0-100 PSIG, all within a single device. The voltage output signals are also field adjustable between 0-5 VDC and 0-10 VDC, providing seamless compatibility with various DDC controllers and BMS systems. With a NEMA 4 (IP-65) enclosure and a wide 12-40 VDC supply voltage range, this sensor maintains high accuracy measurement and NIST-traceable calibration across a broad operating temperature range of 0°F to 180°F.

• Multi-range flexibility: Reduce stock requirements with field selectable 0-25, 0-50, and 0-100 PSIG settings.
• Universal controller compatibility: Easily switch between 0-5 VDC and 0-10 VDC output signals via internal jumpers.
• Rugged durability: The NEMA 4 rated metal enclosure and 316L stainless steel wetted parts withstand harsh mechanical room conditions.
• Advanced protection: Features short circuit and reverse polarity protection to prevent damage during field wiring and commissioning.
• Extreme overpressure tolerance: Designed to handle 300% overpressure and 500% burst pressure without zero shift.

How do I adjust the pressure range on the PR-264-R1-VDC?
The pressure range is adjusted using internal board jumpers. You can toggle between 0-25, 0-50, and 0-100 PSIG depending on your application’s specific requirements.

Is this sensor compatible with chilled water or steam systems?
This sensor is compatible with any liquid or gas that is non-corrosive to 316 stainless steel. For steam applications, always use a pigtail syphon to protect the sensing element from high temperatures.

Can I power this unit with a 24 VAC transformer?
Yes, the 0-5/10 VDC output version of the PR-264-R1-VDC is designed to operate on a wide unregulated supply voltage of 12-40 VDC or 12-35 VAC.

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.