Service Manual UTS1000/3000 Series
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Direct current
Instrument direct current, please confirm the regional voltage range.
Grounding
Frame, chassis ground terminal.
Grounding
Protective earth terminal.
Grounding
Measure the ground terminal.
OFF
The main power is off.
ON
The main power is turned on.
Power supply
Standby power, when the power switch is turned off, the instrument is not
completely disconnected from the AC power source.
CAT I
A secondary electrical circuit connected to a wall socket through a
transformer or similar device, such as electronic equipment. Electronic
equipment with protective measures, any high-voltage and low-voltage
circuits, such as copiers inside the office, etc.
CAT II
CATII: The primary electrical circuit of electrical equipment connected to
the indoor socket through the power cord, such as mobile tools, home
appliances, etc. Household appliances, portable tools (electric drills, etc.),
household sockets, and sockets that are more than 10 meters away from
Category III lines or 20 meters away from Category IV lines.
CAT III
Primary circuits of large equipment directly connected to the distribution
panel and circuit connections between the distribution panel and socket
outlets (three-phase distribution circuits including individual commercial
lighting circuits). Equipment with fixed positions, such as multi-phase
motors, multi-phase gate boxes; lighting equipment and lines inside large
buildings; machine tools and power distribution panels at industrial sites
(workshops), etc.
CAT IV
Three-phase public power supply equipment and outdoor power supply
line equipment. Equipment designed for "primary connection", such as the
power distribution system of the power station; power meters, front-end
over-set protection, and any outdoor transmission lines.
CE Certified
The CE mark is a registered trademark of the European Union.
UKCA certified
The UKCA logo is a registered trade mark in the United Kingdom.
UL certified
Meets UL STD 61010-1, 61010-2-030, Meets CSA STD C22.2 No. 61010-1 and
61010-2-030.
Abandoned
Do not place the device and its accessories in the trash. Items must be
disposed of properly in accordance with local regulations.
