FAQ03455 of Level Switches FAQ

Yes, measure the interelectrode resistance both while Electrodes are immersed in the liquid and while they are held away from the surface of the liquid, and see if the values are within the ranges given in 61F specifications.

1.Measure the interelectrode resistance while Electrodes are immersed in the liquid, and check it against the interelectrode operate resistance range in the specifications. If the resistance is higher than the range in the specifications, an operating error may occur. In this case, increase 61F sensitivity or shorten the distance between Electrodes to bring the interelectrode operate resistance to a level within the range given in the specifications.

2.Measure the interelectrode resistance while Electrodes are held away from the surface of the liquid, and check it against the interelectrode release resistance range in the specifications. If the resistance is lower than the range in the specifications, a release error may occur. In this case, reduce 61F sensitivity or increase the distance between Electrodes to bring the interelectrode release resistance to a level within the range given in the specifications.

Note:It is important to select the appropriate 61F model. Selecting one with an interelectrode resistance range that is larger than necessary may result in faulty resetting due to condensation forming in Electrode Holders.