Intuitive Parameters Setting, Digital Display  JLT Series, with 4- or 6- position Floc Tester, offers continuously variable stirring speed (if required), up to 300 rpm and settable through the relative digital display located on the front panel. 

In addition, the user can program the operating time for unattended operation, through a second digital display. When time expires, stirring will be stopped automatically. An illuminated back panel simplifies the observation of the samples, whilst height adjustment option for the stirring blades during operation increases its capabilities. 

What is JAR TESTING?  Jar testing is a pilot-scale test of the treatment chemicals used in a particular water plant. In few words, it simulates the coagulation/flocculation process in a water treatment plant, helping the operator in the determination of the right amount of treatment chemicals, and, thus, in improving the plant’s performance. 

Jar testing entails adjusting the amount of chemicals and their sequence in which they are added. The sample requires to be stirred so that the formation, development, and settlement of floc can be watched just as it would be in the fullscale treatment plant.  The operator then performs a series of tests to compare the effects of different amounts of flocculation agents at different pH values to determine the right size floc. 

Few operations are required for a correct test: 

• For each water sample, usually raw water, a number of beakers (jars) are filled with the same amounts of water sample * Each beaker is treated with different doses of chemical; other parameters may be altered besides dosage, including chemical types, mixing rate, aeration level/time, filtration type, etc. * Then, by comparing the final water quality in each beaker, the effect of the different treatment parameters can be determined and the best formula can be reproduced on large scale