Users Manual Part 3

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8.2 Multimeter Operation
A multimeter is an electronic measuring instrument that is used to measure voltage,
resistance, frequency, diode, duty cycle and pulse width and continuity test. The
VCMI (Vehicle Communication and Measurement Interface) working with MaxiSys
Ultra can function as a multimeter to provide precise measurements.
8.2.1 Safety Information
Follow the instructions below to reduce the risk of injury from electric shock and
prevent equipment damage.
 Use the multimeter only as specified in this manual.
 Do not apply more than the rated voltage between terminals or between any
terminal and earth ground.
 Do not input a value beyond the range when measuring. Remember that the limit
value range of this multimeter is ±200V.
 To prevent injury or death, do not use the multimeter if it appears to be damaged
in any way, and stop use immediately if you are concerned with any abnormal
operations.
 To prevent injury or death, never ground yourself when taking electrical
measurements. Isolate yourself from ground by using dry rubber insulating mats
to cover all exposed/grounded metal. Ensure all clothing including gloves are dry.
Stand on rubber mats when using tool.
 Use the test leads or probes supplied with the product, or proper and applicable
terminals. Inspect the test leads or probes for damage before use.
 When using probes, keep fingers behind the finger guards on the probes.
 Use the supplied replacement fuses or specified replacement parts.
 Always consider electrical and electronic equipment to be energized (live). Never
assume any equipment is de-energized.
 When making electrical connections, connect the common test lead before
connecting the live test lead; when disconnecting, disconnect the live test lead
before disconnecting the common test lead.
 When measuring current, turn off circuit power before connecting the multimeter
to the circuit. Remember to place the multimeter in series with the circuit.
 After current measurement is finished, turn off the power to the circuit before
removing the test leads and before reconnecting any disconnected wires or
devices.