Emerson Rosemount 499acl-01-54-vp 499ACL Chlorine Sensor

499acl-01-54-vp

499ACL-01-54-VP is a residual chlorine sensor from Rosemount. The following are its related parameters:

Measurement range: 0 - 10ppm, used to continuously detect the content of residual chlorine (hypochlorous acid and hypochlorite ion) in aqueous solution.

Applicable pH range: 6.0 - 9.5. If the pH value of the solution is relatively constant, a fixed value can be entered into the analyzer; if the pH value changes, a pH sensor is required for real-time correction. In some special cases, samples with a pH value as high as 10.0 can even be analyzed, but the manufacturer needs to be consulted.

Temperature-related parameters: The operating temperature range is 32 - 131°F (0.0 - 55°C). The sensor has a built-in Pt100 RTD temperature probe, which can automatically compensate for the impact of temperature changes on the permeability of the sensor diaphragm, and the analyzer can automatically correct the temperature.

Pressure characteristics: The sensor is equipped with a flexible airbag, which can automatically adjust the pressure changes inside the cavity, maintain the pressure balance on both sides of the film, and prevent the film from deforming.

Measurement principle: It is a diaphragm-covered current sensor, consisting of a (platinum) cathode, a (silver) anode and an electrolyte. The cathode is covered with a porous diaphragm that allows gas permeation. The residual chlorine in the measured solution diffuses to the cathode through the diaphragm. Under the action of the cathode polarization voltage, the residual chlorine is reduced to chloride ions, thereby generating a current between the cathode and anode electrodes, which is proportional to the residual chlorine concentration.

Response time: 22 seconds.

Appearance size: Maximum length 7.75 inches (197mm), maximum diameter/width 1 inch (25.4mm).

Installation options: It is usually recommended to use a low-flow flow cell installation method, and it can also be equipped with a VP waterproof cable connector and a cable, that is, a split structure. With VP connector, the sensor can be replaced without changing the cable, and it is compatible with a variety of analyzers such as 1054 series, 1055, 1056, 1066 - DO, etc.

Sample type: Aqueous, which is suitable for aqueous solutions.