The Model 17-53-3B/C and 18-53-4B/C Tachometer Testers are engineered and designed
to provide maximum efficiency and versatility for testing electrical and mechanical
tachometer generators and indicators.
The Ideal Aerosmith 17-53-3B/C (bench model) and the 18-53-4B/C (floor model) are
both self-contained and self-calibrating. The outside drives are provided with pad
mounting flanges. An adapter changes the flanges to screw mounts. The front drives
are normally used for driving the generators of the electrical tachometers. A flex
shaft can be left on the inside drive for use with centrifugal or magnetic tachometers.
Quick disconnect mounting clamps are provided for four tachometer indicators.
Operating speed at the rates and/or setting can be closely maintained even with
a change in load. Speed can be preset if desired, and the drive will quickly accelerate
to that speed when the start button is pressed. A control station on the panel includes
start and stop push buttons, a reversing switch, and a ten-turn speed control potentiometer
with vernier for fine adjustment of speed. The 18-53-4B/C tachometer tester is also
provided with a rollout work tray.