
Model SA2-CH4-MEMS (METHANE)
Smart Sensor Modules
Model SA2-CH4-MEMS smart sensor modules are designed to detect and monitor methane in ambient air. The modules consist of a microelectromechanical systems (MEMS) gas detection sensor and a micro-processor-based signal conditioning circuit. Both are housed in a metallic enclosure fitted with gold plated connecting pins. When used with any Safeguard Analytics gas detection transmitter, no calibration is necessary, making the SA2-CH4-MEMS ready for operation when installed in any Safeguard Analytics transmitter.
Gas Type
Range of Sensitivity
Serial Number
Calibration Details
- last zero cal date
- last span cal date

Calibration Level Configuration
Alarm Point Configuration
Environmental Data / Compensation
"The Smart Sensor Module" is factory programmed for a specific range of sensitivity. On power up, gas type, measurement range, and previous zero and span calibration data points are read by the transmitter, facilitating a fully automated startup. When used with any Safeguard Analytics gas detection transmitter, calibration may be performed on site or remotely, and the module transported to the point of installation pre-calibrated and ready for operation.
Specifications1
1 Specifications subject to change without notice.
2 For most accurate bump test results, use a gas mixture consisting of 1% methane with real air (1% methane, 20% oxygen, 0.9% argon, 0.04% CO2, balance nitrogen 78.06%).
