Fluke 27-II User Manual page 13

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.
Do not apply more than the rated
voltage, as marked on the Meter,
between the terminals or between any
terminal and earth ground.
Never operate the Meter with the cover
removed or the case open.
Use caution when working with voltages
above 30 V ac rms, 42 V ac peak, or 60 V
dc. These voltages pose a shock hazard.
Use only the replacement fuses specified
by the manual.
Use the proper terminals, function, and
range for measurements.
Avoid working alone.
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 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.
Do not use the Meter if it operates
abnormally. Protection may be impaired.
When in doubt, have the Meter serviced.
Do not use the Meter around explosive
gas, vapor or in damp or wet
environments.
Use only three 1.5-V AA batteries,
properly installed in the Meter case, to
power the Meter.
Digital Multimeters
Safety Information
3