The End Panel Holder can be used with the WACO Enamel Rater to test for metal exposure on can ends. The unit requires the use of the 10788-17 cable adapter/footswitch. The test is performed in the same manner as on a can. Electrolyte is added to the plastic cup, the can end is fitted onto the beveled end of the cup, and a vacuum is applied to hold the end securely on the cup. When the cup is inverted, the electrode and can end become immersed in the electrolyte, and the reading is taken from the enamel rater display.
The End Panel Holder consists of a Lucite cup precisely sized for a specific end diameter. The cup is beveled to make a tight seal on the can end . An electrode and vacuum connection are mounted within the cup. On the Bakelite base are mounted a vacuum stopcock and a moveable contact arm which completes the electrical circuit when the assembly is inverted. Vacuum pump required, but not supplied, see 73026 series.