Long-life Free Chlorine Sensor

Feb. 2, 2011
Using amperometric technology for real-time free chlorine measurement, the FCL Series Free Chlorine Sensor is designed to offer low maintenance and long life.

The FCL’s precise amperometric sensor measures free chlorine in real time and is available in three different measurement ranges: 0-2ppm, 0-5ppm and 0-10ppm. The sensor’s long-life design reduces maintenance cycles, which lowers lifecycle costs with less frequent sensor membrane cap/solution replacement and reduced technician installation time. After hypochlorous acid (HOCl) diffuses through the FCL sensor’s membrane, it is electrochemically reduced, releasing electrons and creating a current flow proportional to the free chlorine concentration in the medium outside the sensor. The low current output is then conditioned to a 4-20mA direct output. The FCL’s sensor operates in a range of 4-11 pH, a temperature range of 0-45°C (32-113°F) and at a maximum pressure of 14.7 psig (1 Bar).


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