Overvoltage Category - Extech Instruments 382400 User Manual

CAUTIONS
•
Improper use of this meter can cause damage, shock, injury or death. Read and
understand this user manual before operating the meter.
•
Always remove the test leads and clamp jaw from circuits or devices under test before
replacing the battery or fuses.
•
Use great care when making measurements if the voltages are greater than 25VAC
rms. These voltages are considered a shock hazard.
•
Voltage checks on electrical outlets can be difficult and misleading because of the
uncertainty of connection to the recessed electrical contacts. Other means should be
used to ensure that the terminals are not "live".
•
If the equipment is used in a manner not specified by the manufacturer, the protection
provided by the equipment may be impaired.
MAXIMUM INPUTS
Function
Current (Amperes)
Voltage (Volts)
PER IEC1010 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
Maximum Input
3000A AC
600V AC
3 382400 V1.1 06/07