Symbols; Maintenance - Mastech MS8211D Instruction Manual

1.2.5 Do not measure voltage if the voltage on the
terminals exceeds 600V above earth ground.
1.2.6 Always be careful when working voltages above
60V DC or 30V AC rms, keep fingers behind the
probe barrier while measuring.
1.2.7 Never connect the meter leads across a voltage
source while the transform switch is in the
resistance, diode or continuity mode. Doing so can
damage the meter.
1.2.8 Never perform resistance, diode and continuity
measurements on live circuits.
1.2.9 Before rotating the transform switch to change the
function, disconnect the tip of meter and the probe
of the test lead (or test clip) from the circuit under
test.
1.2.10 Never use the meter under the condition of the
explosive air, steam or dirt.
1.2.11 If any faults or abnormalities are observed, the
meter can not be used any more and it has to be
checked out.
1.2.12 Never use the meter unless the rear case is in
place and fastened fully.
1.2.13 Please do not store or use meter in areas exposed
to direct sunlight, high temperature, humidity or
condensation.

1.3 Symbols

Important safety information, refer to the operating
manual.
Double insulation (Protection class II).
CAT II Overvoltage (Installation) category II,
Pollution Degree 2 per IEC1010-1 refers to the level
of Impulse Withstand Voltage protection provided.
03
Conforms to european union directive
Earth ground
AC Alternating current
DC Direct current
AC or DC (alternating current or direct current)
Diode
Continuity buzzer
M.H The maximum value is being held.
D-H This indicates that the display data is being held.
AUTO Auto range
The battery is not sufficient for proper operation.

1.4 Maintenance

1.4.1 Please do not attempt to adjust or repair the meter
by removing the rear case while voltage is being
applied. A technician who fully understands danger
involved should only carry out such actions.
1.4.2 Before opening the battery cover or case of the
meter, always disconnect the tip of meter and the
probe of the test lead (or test clip) from all tested
circuits.
1.4.3 To avoid the wrong reading causing electricity
attack, when the meter displays"
change the battery.
1.4.4 Do not use abrasives or solvents on the meter, use
a damp cloth and mild detergent only.
1.4.5 Always set the transform switch to the OFF position
when the meter is not in use.
1.4.6 If the meter is to be stored for a long period of time,
the batteries should be removed to prevent damage
to the unit.
" , you must
04