MD 9020 Electrical & Electronic DMM Safety
4
1 Safety
This manual contains information and warnings that must be followed for operating the
instrument safely and maintaining the instrument in a safe operating condition. If the
instrument is used in a manner not specified by the manufacturer, the protection
provided by the instrument may be impaired. The meter is intended only for indoor use.
The meter (all versions) is protected, against the users, by double insulation per
UL3111-1(1994), CSA C22.2 No. 1010-1-92, EN61010-1(1995) and IEC61010-1(1995)
to CAT II 1000V & CAT III 600V.
Standard CE version series Terminals (to COM) ratings:
V :Category II 1000 Volts AC & DC, and Category III 600 Volts AC & DC.
A / mA
A : Category II 250 Volts ac and 150 Volts dc.
Protection-reinforced CE + UL version series Terminals (to COM) ratings:
V :Category II 1000 Volts AC & DC, and Category III 600 Volts AC & DC.
A / mA
A : Category III 500 Volts AC and 300 Volts DC.
*Look for UL listed logo printed on meter
PER IEC61010 OVERVOLTAGE INSTALLATION CATEGORY
OVERVOLTAGE CATEGORY II
Equipment of
OVERVOLTAGE CATEGORY II
is energy-consuming equipment to be
supplied from the fixed installation.
Note – Examples include household, office, and laboratory appliances.
OVERVOLTAGE CATEGORY III
Equipment of
OVERVOLTAGE CATEGORY III
is equipment in fixed installations.
Note – Examples include switches in the fixed installation and some equipment for
industrial use with permanent connection to the fixed installation.
Terms in this manual:
WARNING
identifies conditions and actions that could result in serious injury or even
death to the user.
CAUTION
identifies conditions and actions that could cause damage or malfunction
in the instrument.
WARNING
To reduce the risk of fire or electric shock, do not expose this product to rain or
moisture. To avoid electrical shock hazard, observe the proper safety precautions when
working with voltages above 60 VDC or 30 VAC rms. These voltage levels pose a
potential shock hazard to the user. Do not touch test lead tips or the circuit being tested
while power is applied to the circuit being measured. Keep your fingers behind the
finger guards of the test leads during measurement. Inspect test leads, connectors, and
probes for damaged insulation or exposed metal before using the instrument. If any
defects are found, replace them immediately. Do not measure any current that exceeds
the current rating of the protection fuse. Do not attempt a current measurement to any
circuit where the open circuit voltage is above the protection fuse voltage rating.
Suspected open circuit voltage should be checked with voltage functions. Never attempt
