Item Type: Engine Interface Module_x000D_ Model: EIM PLUS 859767_x000D_ Material: ABS_x000D_ Product Voltage: 12V_x000D_ Product Features: The engine interface module is a sealed module installed on the engine, which provides switching relays for the starting motor solenoid valve, glowing plug and fuel solenoid valve. Each of these circuits is protected by a separate fuse installed in the module. When each circuit is energized, a single LED illuminates._x000D_ EIM Plus: The ElIM Plus is used with a control panel that is not equipped with an overspeed shutdown. _x000D_ Overspeed Signal: The ElM Plus monitors the speed signal from the magnetic sensor. If the engine speed rises above a preset value, the module sends a 0 volt signal to the generator set control panel to activate the overspeed fault circuit. Overspeed setpoints are in default set to 55 Hz for 50 Hz units and 66 Hz for 60 Hz units. This can be adjusted using the adjustment screw that is accessed through the hole next to the overspeed setting LED. When the engine is running at rated speed, 1500 rpm at 50 Hz and 1800 rpm at 60 Hz, adjust the adjusting screw until the overspeed setting LED just goes out. This sets the overspeed value to 10% above the generator set operating speed. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin