Sofamel BTL-600 Manual De Instrucciones página 28

Wear personal protective articles (approved rubber gloves,
masks, flame retardant clothing, etc.) to prevent injury from
electric shock and arcing where dangerous live conductors are
exposed.
The input measurement voltage must not exceed the specified
rated value of the meter.
Measure a known voltage to determine if the meter is working
properly.
Do not use the meter around explosive gases or vapors or in
a humid environment.
Check whether the insulation of the meter probe is damaged,
and whether there is exposed metal or signs of wear. Check
the break-make of the meter pen.
When measuring, please connect the null wire or ground wire
first, then the live wire; when disconnecting, disconnect the live
wire first, then the null wire and ground wire.
When measuring, hold your fingers behind the finger protection
device.
Before opening the back cover of the meter, disconnect the
meter probe from the object to be measured.
When measuring, do not exceed the measurement category
(CAT) rated value of the individual component with the lowest
rated value in the meter, probe, or accessories.
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