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Ammonia Sensor for SCR NOX Reduction - Energy

4 Sensing principle Non-equilibrium electrochemical sensing principle – Proprietary NH3 sensing electrode materials – Both sensing and reference electrodes exposed to the engine exhaust – Solid oxide electrolyte used as the sensor body 2 ( ) 4 ( ) 3e NH3 O2 H2O Ln P e kT Ln P e kT Ln P kT EMF ≈ − − •(Heater circuit not shown) O2- O 2 + 4e ­ Æ2O2- ...

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Ammonia (NH3) sensor

Compact, rugged in design and fully serviceable with simple 1-button operation. Available sensors: O2, CO, H2S, SO2, CO-H, PH3, Cl2, NH3 and NO2. Alarms include (3) highly visible, chasing yellow and red alarm LEDs plus vibration. Max, STEL and TWA readings are accessible by pressing the MODE button. Continuous real-time gas readings. Includes datalogging, black-box recorder and event logger ...

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