7. Instruction manualPress “POWER” key, if low battery, the LCD display will show “ - + “ symbol on the left side, then replace the battery. Choose the measurement function and range.1) Closed angle gauge measurementa. According to the number of engine cyclinder, set function/range switch in “DWELL” range.b. Insert the black probe into COM jack, and the red probe into V jack.c. Connect the black probe on the battery negative connect red probe to the low voltage connector or the nagetive pole of ignition coil “-“.d. Start the generator, the Close Angle gauge value will shown on the display.2) Rotational speed measurement- According to the number of engine cyclinder, set function/range switch in “TACH” range.- Insert the black probe into COM jack, and the red probe into V jack.- Connect the black probe on the battery negative connect red probe to the low voltage connector or the nagetive pole of ignition coil “-“.- Start the generator, the result of Frequency speed will shown on the display. ( Rotational speed = reading value x 10 cycle/minute ).
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