User Manual

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UT108/109 OPERATING MANUAL
UT108/109 OPERATING MANUAL
52
Warning:
Do not start the engine of the automobile in testing, or the meter will be damaged.
4. Read the reading of the tested current directly from the display with the normal current
being about 100mA. For the special supply of currents (when the engine is off), please
refer to the automotive servicing manual. If there emerges any additional current, do
necessary servicing.
Warning:
A frequency-modulated radio or clock needs a current supply of 100 mA.
F. Trigger Voltage Battery Load Testing
Upon the start of the engine, test the battery to see if it can offer an adequate voltage.
1. Set the rotary switch to DCV.
2. Insert the red test lead into the V terminal and the black one into the COM terminal.
3. Interrupt the ignition system to disable the start of the automobile.
Cut off the main ignition coil, shunt coil, cam and starting sensor so as to interrupt the
ignition system. Operate according to the automotive manual.
4. Connect the black test lead probe to the negative pole of the battery and the red one to