PR-274-R2-VDC-MAMA

Overview

The MAMAC Systems PR-274-R2-VDC-MAMA is a low pressure transducer from the PR-274 series. It utilizes a micro-machined glass-on-silicon capacitance sensor for high stability. The unit features field-selectable ranges, including 0-1 in WC, 0-0.5 in WC, 0-0.25 in WC, -0.5 to 0.5 in WC, and -0.25 to 0.25 in WC. Operating voltage is 12 to 40 VDC with a current output of 12 to 35 VAC. Accuracy is as low as ± 0.05 in W.C.

Feature Summary

• Incorporates a 100% solid state micro-machined glass-on-silicon ultra-stable capacitance sensor
• Provides up to six field selectable measurement ranges within a single unit
• Includes range select switch and zero and span potentiometer adjustments

Applications

• HVAC system monitoring
• Low pressure differential measurement
• Industrial process control

Procurement Notes

Verify the specific part number suffix against official MAMAC Systems documentation to confirm electrical specifications and enclosure type. Ensure the selected range configuration matches the application requirements before procurement. Cross-reference datasheets for environmental ratings and mounting dimensions to guarantee compatibility with existing installation infrastructure.

Selection Notes

Select this model for applications requiring high stability in very low pressure measurements. The glass-on-silicon technology offers superior performance compared to traditional sensors. Consider the field-selectable range feature for flexibility in multi-range installations. Verify power supply compatibility with the specified 12 to 40 VDC input requirement.

Part Context

This component belongs to the MAMAC Systems PR-274/275 series of low pressure sensors. The series is characterized by its use of advanced micro-machined glass-on-silicon capacitance technology. This design revolutionizes very low pressure measurement capabilities. The PR-274 series is widely recognized for its reliability and precision in demanding industrial environments.

Replacement Considerations

Consult official MAMAC Systems substitution guides for verified equivalents. Generic replacements may not match the glass-on-silicon sensor characteristics or field-selectable range functionality. Ensure interface and accuracy specifications align with original requirements.