High Pressure Oxygen Sensor, 0-100% Linear, 3 Pin Interface

This high pressure oxygen sensor is a shared-voltage electrochemical O2 sensor for accurate oxygen detection in pressurized environments. It offers 0–100% linear measurement, fast T90<10s response, temperature compensation, and a Molex 3-pin interface for stable signal output. Suitable for hyperbaric oxygen chambers, ship inspection, oil tankers, and high-pressure gas monitoring systems.

Feature

• The high-pressure oxygen sensor is designed for use in high-pressure environments. Featuring a Molex 3-pin connector, its structure and composition differ from standard atmospheric oxygen sensors, enabling it to withstand significantly higher pressures than conventional models.
• This oxygen sensor delivers full-range linear output from 0-100%, offering rapid response and exceptional long-term stability.
• The high-pressure oxygen sensor operates without an external power source. Each unit undergoes professional, precise factory calibration and temperature compensation.

Dimension (unit: mm)

Application Circuit Diagram

• Short-circuit the positive and negative terminals (Vsensor+ and Vsensor-) of the high pressure oxygen sensor. The ADC value (MCU−ADC) read at this point is recorded as A₀.
• Place the gas sensor in air. The ADC value read at this point is recorded as A₁.
• Next, place the high pressure oxygen sensor in the target environment. The ADC value read at this point is recorded as A_x.
• The formula for calculating oxygen concentration in the target environment is: Oxygen Concentration = (A_x - A₀) × 20.9÷(A₁ - A₀) × 100%

Pin Definition

Pin	Definition
1	Positive Pin
2	Negative Pin
3	Negative Pin