7889 Preset Counter

The rugged two-stage preset quantity control for high speed volume deliveries. Counts down from a preset quantity. First stage knockoff slows delivery before the second stage shuts off the delivery system at zero. The first stage (or slowdown) knockoff can be field adjusted to calculate 3 to 9, or from 10 to 90 in increments of 10.

Preset number can be easily set with one hand. Stop button provides immediate positive control of shutoff, for emergency shutdown. Interlocks block system until pump valve is opened. Mechanical knockoff is standard, electrical knockoff optional. Available in 4 or 5 figures. The 7887 register counter is required for operation.