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Measuring Voltage
3.7 Measuring Voltage
The instrument measures the voltage of an external circuit, e.g., commercial power
supply. It automatically determines AC voltage or DC voltage.
DANGER
Do not allow the tip of test leads to short-circuit two wires
across which a voltage is applied.
Doing so will cause a short-circuit fault, resulting in serious bodily injury.
WARNING
When measuring power line voltage, use test leads that
satisfy the following conditions:
• IEC 61010 or EN 61010 safety standard-compliant
• Rated for measurement category III or IV
• Rated voltage higher than voltage being measured
Failure to do so could cause the user to experience an electric shock.
The test leads included with the instrument comply with the EN 61010
safety standard. Observe the measurement category and rated voltage
indicated on the test leads during use.
CAUTION
Do not input voltage from an external source when the rotary
switch is set to OFF.
Do not input voltage from an external source to GUARD terminal.
Doing so could damage the instrument.
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