Description

NABTESCO
REVOLUTION COUNTER
S121

The Nabtesco S121 is a revolution counter used within the marine control system, where it keeps a count of revolutions for the machinery it is assigned to. Counters of this kind sit within the control and monitoring arrangement serving propulsion and auxiliary machinery, and they give the control side a revolution figure to work with. The S121 type marking identifies this exact counter model within the maker’s control range. It is supplied in used condition for vessels operating control equipment of this make.

Key Features

✓ Revolution counter

✓ Type designation S121

✓ Keeps a revolution count for the assigned machinery

✓ Serves the vessel’s control and monitoring arrangement

✓ Part of the maker’s control equipment range

Marine Applications

✓ Propulsion control stations in the engine control room

✓ Main engine revolution monitoring within the control system

✓ Shaft revolution counting for machinery records

Technical Support

Prota Marine provides technical support, repair and onboard installation for the revolution counter and the wider marine control system. Fault diagnosis on the counter and its connections is available, along with commissioning support after installation.