Safety Symbols; Preparing The Meter For Operation - Sonel CMM-30 Manual De Uso

2.2 Safety symbols

This symbol located near another symbol or terminal,
indicates that the user should read the further information
contained in the manual.
This symbol located near the terminal, indicates that in
normal use there is a possibility of dangerous voltages.
Protection class II – double insulation
Terminals with this marking cannot be connected to a
circuit where the voltage to ground exceeds the maximum
safe voltage of the device.

3 Preparing the meter for operation

After purchasing the meter, check whether the content of the
package is complete.
Before performing the measurement:
 make sure that the battery level is sufficient for measurements,
 make sure that the device has fuse installed and efficient,
 check whether the meter casing and insulation of the test leads
are not damaged,
 to ensure consistent measurement results it is recommended to
connect black lead to COM terminal and red lead to other termi-
nals,
 when the meter is not in use, set the function switch in OFF posi-
tion.
The device has the AUTO-OFF function triggered after approx.
15 minutes of user inactivity. To turn the meter on again, set the
function switch to OFF position and then set it at the desired func-
tion.
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CMM-30 – USER MANUAL