Emerson Rosemount 499ACL-01 499ACL Chlorine Sensor

499ACL-01: Measures free chlorine without sample pretreatment and with automatic pH correction to at least 9.5.

Emerson 499ACL-01 is a residual chlorine sensor for measuring free chlorine in water. Here is a detailed introduction:

Application scenarios: Suitable for various municipal and industrial water treatment plants to measure residual chlorine applications.

Working principle: It belongs to the amperometric sensor family and uses ion-selective electrode technology to detect free chlorine in water through a liquid-ion exchange membrane. It can automatically correct the pH value to at least 9.5 to accurately measure the free chlorine content.

Technical parameters: The measurement range is usually 0 to 10 ppm (mg/L) in Cl₂; the response time is 22 seconds; the pH range is 6 to 9.5; the operating temperature range is 32 to 131°F (0.0 to 55°C); the working pressure is 0 to 65 psig (101 to 549 kPa).

Appearance and installation: It is generally installed on the bypass pipeline through a flow cell, and can be equipped with an integrated cable or a VP6.0 waterproof cable connector with a split cable. The maximum sensor diameter/width is 1 inch (25.4 mm) and the maximum length is 7.75 inches (197 mm).

Product Features: No cumbersome and expensive reagents required; Diaphragms are easily replaced without special tools; Automatic compensation for temperature-related membrane permeability changes; Vario Pol connector option allows sensor replacement without replacing new cables.

Maintenance: Regular maintenance and cleaning are required to ensure optimal performance, typically replacement of the diaphragm and fill solution every 1 to 3 months. If the sensor is used in water with a conductivity of less than about 100 µs/cm, more frequent changes of the fill solution may be required, but no diaphragm replacement is required.