APPLIED SENSING TECHNOLOGIES PPM Oxygen Sensor Model: SRX-MTL-2C AST Model SRX-MTL-2C Trace PPM O2 sensor is a drop-in replacement to Teledyne Model C6689-L-2C oxygen sensor. This sensor has a larger electrolyte reservoir and hence offer a much longer sensor life compared to the standard PPM O2 sensor. This sensor is ideal for very dry gas streams and gas streams at temperature above 30 degree Celsius. Sensor is designed, developed and manufactured in the USA. Model SRX-MTL-2C Replaces: Teledyne L-2C Part # C06689-L2C Specifications* Sensor Technology Optimum Measuring Range Signal Output¹ Response Time T90 Accuracy² Drift2 Linearity Repeatability Temperature Coefficient Operating Temperature Storage Temperature Recommended Flow Rate Humidity Non-Condensing Expected Life³ Recommended Storage Warranty4 PCB Connections Size Galvanic Type Micro Fuel Cell 0 to 10 PPM 460 - 625 uA 7 seconds +/- 1% of signal < 2% +/- 1% +/- 0.5% -2.2% / °C 5 to 45°C 0 to 45°C 0.5 - 5 SCFH 0 - 99% RH 24 months 6 months 12 months Center Negative, Outer Positive 1.25x1.25 Note: AST Model SRX-MTL-2C is packaged in a metalized bag filled with nitrogen. Use immediately after removing from sealed bag. This sensor is recommended for inert and gaseous hydrocarbons gas streams. For gas streams containing CO2, use AST Model SZX-MTL-2C 1. Signal Output measured in air at 25°C and at atmospheric pressure. 2. At constant temperature and pressure. 3. At operating temperature less than 30°C, at atmospheric pressure, and oxygen content under 10,000 PPM 4. AST warrants the sensor for 12 months to be free from defects in materials and workmanship. AST will not be held liable for sensor damaged due to customer neglect or misuse. * Specifications are validated during design and are subject to change without notice.