Amprobe AM91RS Digital-Multimeter - Manual (Page 2)

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1) SAFETY
This manual contains information and warnings that must be followed for operating the
meter safely and maintaining the meter in a safe operating condition. If the meter is used
in a manner not specified by the manufacturer, the protection provided by the meter may
be impaired. The meter is intended only for indoor use.
The meter meets the requirements for double insulation to IEC61010-1(1995), EN61010-
1(1995), UL3111-1(6.1994), CSA C22.2 NO. 1010-1-92 to terminals:
V/R : Category IV 600V ac and dc, and Category III 1000V dc and 750V ac.
mA/ µ A : Category III 500V ac, and Category II 300V dc.
A : Category III 600V ac, and Category II 300V dc.
PER IEC61010 OVERVOLTAGE INSTALLATION CATEGORY
OVERVOLTAGE CATEGORY I
Equipment of OVERVOLTAGE CATEGORY I is equipment for connection to circuits in
which measures are taken to limit the transient overvoltages to an appropriate low level.
Note – Examples include protected electronic circuits.
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.
OVERVOLTAGE CATEGORY IV
Equipment of OVERVOLTAGE CATEGORY IV is for use at the origin of the installation.
Note – Examples include electricity meters and primary over-current protection
equipment.