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0.3 PSI-D-HGRADE-MV

0.3 PSI-D-HGRADE-MV

Amphenol All Sensors Corporation
Pressure Sensor 0.3PSI (2.07kPa) Differential Male - 0.19" (4.83mm) Tube, Dual 0 mV ~ 20 mV (12V) 6-SIP Module
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Overview

The 0.3 PSI-D-HGRADE-MV is a high-grade, temperature-compensated differential pressure sensor designed for extremely low-pressure measurements up to 0.3 PSI (2.07 kPa). It utilizes a Wheatstone bridge micromachined silicon structure to provide a highly linear 20mV full-scale output when excited with 12V.

Why Choose This Part

This H-Grade variant features proprietary technology to reduce output offset and errors over a 0 to 70 degrees Celsius temperature range. Its 0.5 percent accuracy and dual-port SIP configuration simplify the design of differential measurement systems requiring high stability.

Applications

Medical Respiration Monitoring
Ideal for sensitive breath detection and airflow measurement in ventilators and spirometers due to its low-pressure range.
HVAC Filter Monitoring
Detects minute pressure drops across high-efficiency air filters to signal maintenance requirements in cleanrooms.
Environmental Gas Flow
Used in instrumentation to monitor low-velocity gas flows or stack emissions in environmental monitoring stations.
Industrial Leak Detection
High sensitivity allows for the detection of very small pressure changes in sealed systems or industrial pneumatic lines.

Key Specifications

Output 0 mV ~ 20 mV (12V)
Accuracy +/-0.5%
Features Temperature Compensated
Port Size Male - 0.19" (4.83mm) Tube, Dual
Port Style Barbless
Output Type Wheatstone Bridge
Applications Board Mount
Mounting Type Through Hole
Pressure Type Differential
Package / Case 6-SIP Module
Maximum Pressure 5PSI (34.47kPa)
Voltage - Supply 16V
Termination Style PC Pin
Operating Pressure 0.3PSI (2.07kPa)
Operating Temperature -25degC ~ 85degC

Getting Started

To interface this sensor with a microcontroller, use a high-precision instrumentation amplifier (such as an AD8421) to scale the 20mV differential bridge signal to a 0-5V or 0-3.3V range for an ADC. Ensure a stable 12V excitation voltage for the bridge, and use 0.19-inch ID tubing to connect the pressure ports.