GW Instek GCM-407, Руководство пользователя

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8. When the LCD display shows the icon, “ ”, it
indicates that the battery should be replaced to
ensure the measurement accuracy. Take out the
battery from the clamp meter when the meter
has not been used for a long time.
9. Refrain from altering the internal wiring of the
clamp meter to prevent damage to the meter or
harm to the operator.
10.Refrain from storing or using the clamp meter in
the environments with explosive elements,
flammables, high temperatures, high humidity or
strong electromagnetic fields.
11.Clean the clamp meter case with a soft cloth and
neutral detergents. Do not use abrasive
materials or solvents to prevent corroding the
case, damage to the instrument and to prevent
danger to the operator.
GCM-407 User Manual GCM-407 User Manual
IV. Electrical Symbols
This symbol signifies the product complies with
both USA and Canadian requirements
Complies with EU standards
Danger! High voltage!
AC or DC (Alternating current or direct current)
Diode
Buzzer on-off
DC (Direct current)
AC (Alternating current)
Warning prompt
Ground
Dual insulation
Capacitance
Do not use the clamp meter if the test lead
insulation is damaged, if the case insulation is
damaged, if the LCD is not functioning or if the
clamp meter is not functioning properly.
2. Do not use the clamp meter if the rear cover or
battery cover is not in place. Failure to do so
may cause electric shock.
3. Keep fingers behind the finger guard. Do not
touch any bare wires, conductors, unused input
terminals, or circuits that are being measured
when the clamp meter is in operation.
4. Make sure the function switch is in the correct
position prior to measurement. Do not change
ranges when using the clamp meter to prevent
damaging the meter.
5. Refrain from applying more than DC1000V/
AC750V to the clamp meter to prevent electric
shock to the user and damage to the clamp
meter.
6. Be careful when measuring RMS voltages
greater than 30DCV or 30ACV as electric shock
can occur.
7. Do not measure voltages or current higher than
the allowable input values. Set the function
range switch to the highest range possible if the
magnitude of the measured value is not known.
Before measuring resistors, diodes or continuity
in a circuit, the circuit should be powered down
and all capacitors in the circuit should be
completely discharged or the measurement
results could be inaccurate.
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