The overspeed and overload protection system is a critical safety function that prevents engines from running beyond their design limits. If this protection fails to trigger the automatic shutdown in an emergency, the engine can suffer severe mechanical damage, loss of propulsion and increased fire risk.
Regular testing with a dedicated simulator ensures that the safety devices, sensors and shutdown logic actually operate when required. It provides crews and technical management confidence in the protection system, supports compliance with class and regulatory requirements, and helps prevent costly incidents and unplanned off‑hire.
Safely verify engine overspeed protection and automatic shutdown
Classification societies prescribe overspeed protection devices for combustion engines with a power output > 220 kW.
- A variety of safety-related operating parameters, such as falling lubricant pressure, can be easily simulated, and the switching points can be checked.
- A variety of safety-related operating parameters, such as falling lubricant pressure, can be easily simulated and checked at the switching points
- A review of the overspeed protection device, as required in the annual machine inspection, is difficult to implement.
- With a fixed propeller drive, a start-up of overspeed, the switching point, and function control are usually impossible or dangerous.
- The knowledge of this problem means that in practice the over-speed tests are not or only very limited
Here we can help you with the overspeed tester / simulator.
otm completet
Simple operation
Sccope of supply
The OTM overspeed tester and simulator allow a check of overspeed safely, incl. Speed pickup test.
By connecting the OTM in series with the existing overspeed protection system, both the generated signals from the pickups are measured, displayed and checked for plausibility, and a freely adjustable speed value is sent to the overspeed protection device. The engine can be at a standstill or at any other speed, and it undergoes a real overspeed test.
- Test of the input signals (pickup test)
- Overspeed test possible at any speed
- Overspeed test also possible during machine downtime
- Plausibility test of signals during overspeed test
- 30 machine types in the device Memory and Programmable
- The device is supplied with a machine-specific plug-in set
- Machine-specific programming included
- Adapter for the different engine types
1 pc. OTM Tester / Simulator handheld unit ( remote control )
1 pc. OTM cable cpl. with socket and plug length 1,7 mtr
1 pc. OTM distribution box acc. to customer requirement
1 pc. OTM printed manual ( standard English version )
1 pc. OTM heavy duty service case