Technical reference page: 96 RDS /Frazier ICM program card 1 PTO speed - Pulses per revolotion = 1   Max PTO speed alarm = 575 2 Engine speed - Pulses per revolution Ford engine = 12.5 LandRover engine (100A alternator) = 19 3 Fuel guage calibration FU1 = 103 FU2 = 55 4 Temp guage calibration TP1 = check with Frazier or 67.5 with new sensor TP2 = check with Frazier or 237 with new sensor TP3 = 101 5 Service hours initialisation - Enter same as recorded engine hours. 6 Engine hours - Enter previously recorded engine hours 7 4ws alarm speed = 19 8 Low fuel warning level = 15% 9 Maximum road speed alarm = 51 10 Max engine speed alarm Ford engine = 4250 Landrover = 3600 Aircon cut in speed / LIght load fuel advance cut-in Ford N/A & turbo engine = 1200 Ford turbo/intercooled engine = 1500 Landrover = 1000