• Available ranges:
• Continuous measurement
• No reagents
• Easy installation and calibration Simple maintenance
By taking a highly chlorinated solution of water that would normally be out of range for the analyzer and diluting it with a controlled amount of chlorine free water a measurable and repeatable chlorine residual reading can be achieved. This measurement can then be taken and an accurate process residual calculated from it.
Hydro Instruments’ sample water dilution panel utilizes two peristaltic pumps and two liquid flow meters, all specially sized to provide proper dilution, one set for the highly chlorinated solution and the other set for chlorine free dilution water.
The peristaltic pumps are self-priming2, chemically resistant and spring loaded so that as the pump tube wears the compression will increase and provide the same chemical feed rate for the life of the pump tube. The self-priming feature will eliminate the need for a pump controller as the feed rate will always be constant.
Tubing is teed together after the remote meters, mixing the chlorinated solution and dilution water together prior to entering the RPH-250 residual chlorine analyzer.
See Bulletin RPH-250 for additional details.