Español   ROTOR TACHOMETER 57mm Diameter With LCD The IM-130 instruments have been designed especially to measure the Rotor RPM.   The IM-130 is available in 57 mm diameter. Both, the Pointer an the LCD show the RPM.   The instruments have been designed to work with both 12V and 24V systems. The LCD is readble at sunlight.     Technical data Case Plastic Weight 220g Suitable for Hall Sensor Power Supply 10..35VDC Power Current  0.1 Amp. Max. Scale 0..500 rpm Subdivision scale 10 rpm each Max. Deviation 1% Dimensions See sketch Calibration Calibrated by the manufacturer prior to shipment. Wire Connections Sensor The IM-424 is inductive sensor that is activated when a piece of iron passes near, without touching them. Only works with alloys high in iron. The sensor can work in two ways, with cam (Figure 1) or slot (Figure 2). In both cases the number of cams or slots have to be four. The sensor has a LED on the back, for easy adjustment. The setting is very simple and consists of tightening or loosening the two nuts sensor, towards or away from the cam sensor until the LED comes on when the cam pass and shut itself off when the cam has passed. Dimensions