Amprobe AM-120 TRMS User Manual page 2

This manual is applicable to all meter protection versions or otherwise specified
1) SAFETY
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.
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 meters (all versions) are protected by double insulation per EN61010-1 and
IEC61010-1 2nd Edition (2001) to CAT III 1000V & CAT IV 600V. The meter (all
versions) also meets CSA C22.2 No. 1010-1-92* to CAT III 1000V.
Standard-version AM-120 & AM-130 Terminals (to COM) ratings:
V : Category III 1000 Volts AC & DC, and Category IV* 600 Volts AC & DC.
A / mA μ A : Category III and Category IV* 500 Volts AC and 300 Volts DC.
CF-version AM-150 (Highest-Protection) Terminals (to COM) ratings:
V / A / mA μ A: Category III 1000 Volts AC & DC, and Category IV* 600 Volts AC & DC.
*Category IV safety standard (for DMMs) was first released in IEC61010-1 2nd Edition
in year 2001.
Per IEC61010-1 2nd Ed. (2001) Measurement Category
Measurement Category IV (CAT IV) is for measurements performed at the source of
the low-voltage installation. Examples are electricity meters and measurements on
primary overcurrent protection devices and ripple control units.
Measurement Category III (CAT III) is for measurements performed in the building
installation. Examples are measurements on distribution boards, circuit- breakers,
wiring, including cables, bus-bars, junction boxes, switches, socket-outlets in the fixed
installation, and equipment for industrial use and some other equipment, for example,
stationary motors with permanent connection to the fixed installation.
Measurement Category II (CAT II) is for measurements performed on circuits directly
connected to the low voltage installation. Examples are measurements on household
appliances, portable tools and similar equipment.
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