Fluke 287 Fluke 287 and 289 Multimeter Users Manual - Page 13

Hazardous Voltage - multimeter

Page 13 highlights

• Use proper protective equipment, as required by local or national authorities when working in hazardous areas. • Comply with local and national safety requirements when working in hazardous locations. WCaution To avoid possible damage to the Meter or to the equipment under test, follow these guidelines: • Disconnect circuit power and discharge all high-voltage capacitors before testing resistance, continuity, diodes, or capacitance. • Use the proper terminals, function, and range for all measurements. True-rms Digital Multimeters Hazardous Voltage • Do not remove batteries while the Meter is turned on or a signal is applied to the Meter's input jacks. • Before measuring current, check the Meter's fuses. (See "Testing the Fuses" in the Users Manual on the accompanying CD.) • Do not use the LoZ mode to measure voltages in circuits that could be damaged by this mode's low impedance (≈3 kΩ). (Model 289 only) Hazardous Voltage To alert you to the presence of a potentially hazardous voltage, when the Meter detects a voltage ≥30 V or a voltage overload (OL), the Ysymbol is displayed. 3

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True-rms Digital Multimeters
Hazardous Voltage
3
Use proper protective equipment, as required
by local or national authorities when working
in hazardous areas.
Comply with local and national safety
requirements when working in hazardous
locations.
W
Caution
To avoid possible damage to the Meter or to the
equipment under test, follow these guidelines:
Disconnect circuit power and discharge all
high-voltage capacitors before testing
resistance, continuity, diodes, or capacitance.
Use the proper terminals, function, and range
for all measurements.
Do not remove batteries while the Meter is
turned on or a signal is applied to the Meter’s
input jacks.
Before measuring current, check the Meter's
fuses. (See "Testing the Fuses" in the Users
Manual on the accompanying CD.)
Do not use the LoZ mode to measure voltages
in circuits that could be damaged by this
mode’s low impedance (
3 k
Ω
). (Model 289
only)
Hazardous Voltage
To alert you to the presence of a potentially hazardous voltage,
when the Meter detects a voltage
30 V or a voltage overload
(
OL
), the
Y
symbol is displayed.