Product Description
The standard speedometer of the SIMSON is driven by a speedometer cable. The reading fluctuates and the cable is a wear part. If the cable breaks, the speed reading and the odometer stop together. An RPM display was reserved for the higher trim levels and is also mechanically driven. A gear indicator and a trip meter never existed.
The CUMPAN takes over both drives electronically and adds what the standard fitment lacks: RPM, speed, gear, total and trip distance, plus service intervals and ride data in the menu.
Benefits
-
RPM without any work on the engine The device picks up the signal inductively at the ignition lead. An integrated filter smooths the signal.
-
Speed and distance without a speedometer cable A reed sensor at the front wheel replaces the mechanical drive. The reading stays steady and the odometer runs regardless of the condition of a cable.
-
Trip meter as a fuel gauge: The trip meter is reset when refuelling and then shows the distance since the last fill-up. This makes it possible to estimate when to refuel before switching to reserve.
-
Gear indicator from RPM and speed The device does not count gear changes, it measures the ratio between the two values.
-
Power supply via a relay Power comes directly from the battery and is switched by the ignition. The electronics are protected against voltage peaks in the electrical system.
-
Operated via the screen The resistive touchscreen responds to pressure and works in the rain. Display fields can be switched over easily while riding.
-
Three service intervals Distance, engine hours and engine revolutions are counted separately. The service point follows the actual load.
-
Sixteen display colours and your own start-up text Colours and a start-up screen of up to ten characters are set on the device.
-
Two-stroke oil calculator Enter the amount of fuel when refuelling and see straight away how much oil to add and what the average consumption has been since the last fill-up.
Technical Concept
The device picks up the RPM signal inductively at the ignition lead and filters it before evaluation. Speed comes from a reed sensor at the front wheel; its pulses, together with the entered wheel circumference, are also used to calculate total and trip distance.
From RPM and speed the device forms a ratio and compares it with the values stored for each gear during the calibration run.
Compatibility
- SIMSON S50, S51, S53, S70, SR50 and SR80 with 12 V electrical system
- SIMSON KR51 Schwalbe, Star, Habicht, Sperber and Spatz with 12 V electrical system
- Gearboxes with three to six gears, regardless of displacement and cylinder
- RPM pick-up at the ignition lead
