Model 187 & 189
Users Manual
Table 1-1. Safety Information
WWarning
To avoid possible electric shock or personal injury, follow these guidelines:
•Do not use the meter if it is damaged. Before you use the meter, inspect the case. Look for cracks or missing plastic. Pay particular attention to the insulation surrounding the connectors.
•Inspect the test leads for damaged insulation or exposed metal. Check the test leads for continuity. Replace damaged test leads before you use the meter.
•If this product is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired.
•Do not use the meter if it operates abnormally. Protection may be impaired. When in doubt, have the meter serviced.
•Do not operate the meter around explosive gas, vapor, or dust.
•Do not apply more than the rated voltage, as marked on the meter, between terminals or between any terminal and earth ground.
•Before use, verify the meter’s operation by measuring a known voltage.
•When measuring current, turn off circuit power before connecting the meter in the circuit. Remember to place the meter in series with the circuit.
•When servicing the meter, use only specified replacement parts.
•Use caution when working above 30 V ac rms, 42 V peak, or 60 V dc. Such voltages pose a shock hazard.
•Avoid working alone.