JT2003
Professional Multimeter
User Manual
8
In conditions that cannot guarantee the safety of operator and those around, stop using
this instrument. For example:
The case is smashed
Test leads are damaged
Battery leakage
Storage in improper place for a long time
4. Range of Applications
This instrument complies with standard of CAT Ill measuring category and rated voltage of
1000V.
CAT Ill measuring category is used in three phase distribution circuit, such as indoor
commercial lighting circuit, industrial equipment switchboard, multiphase motor and
multiphase electrical systems.
This instrument complies with standard of CAT IV measuring category and rated voltage
of 600V.
CAT IV is used in outdoor three-phase utility power supply equipment that is initially
connected, such as power distribution system of power station, over-current protection
device before the power instruments, instruments of equipment connected with outdoor
building.
The rated voltage for probe assembly used in main line measurement should comply
with measurement category Ill and IV of IEC 61010-31 , and the rated voltage should be
maximum voltage of the circuit to be measured.
This instrument should be used in the application field limited in this manual. Any
deviation from this application should be considered to be improper and not inspected,
and may result in accident or damage to the instrument.
Any improper use may completely void the claim to the supplier and the right of warranty.
The manufacturer will not be liable for property damage and personal injury caused by
the following reasons:
18)
