UNI-T UT151A, Руководство по эксплуатации

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3 1/2-bit DDM in the brand-new UT151 series is a kind of hand-held 3 1/2-bit digital
universal meter with stable performance and high reliability. The large-scale integrated circuits
and dual integral A/D transducer are the core design of circuits of the overall instrument and
overload protection with full range of functions is also provided. It can be used to measure the
DC voltage and AC voltage, electric current, resistance, capacitance, diode, triode, temperature,
frequency, battery and the circuit break-make. It's your ideal tool.
OVERVIEW
This instrument is designed and manufactured in strict accordance with safety requirements
of electronic measuring instrument in GB4793 as well as safety standards of IEC61010-1
and IEC100-2-O32. It also complies with the safety standards of double insulation, over
voltage CAT I 1000V, CAT II 600V and pollution class 2.F
ollow t he i nstructions o f t his M anual,
or the protection of the instrument will be damaged.
Ensure that it cannot be operated before the back cover is put in the place, otherwise there is
a risk of electric shock.
The range switch shall be installed at the correct position.
Check and ensure the insulation layer of the pen is in good condition without damage and
broken line.
The red and black pens should be inserted in the hole which meet the measurement
requirement; ensure well contact.
The input signal is not allowed to exceed the limit value to avoid electric shock and damage.
Changing range switch shift is strictly prohibited during the measurement of voltage and
current in order to avoid damaging the instrument.
SAFETY RULES AND PRECAUTIONS
If you want to change the bad fuse and you must use the one of the same type.
In order to avoid electric shock, the potential difference between common port
COM a nd
the earth is not exceeded 1000V.
When the voltage to be measured is more than 60 DC or 30 Vrms AC, you must be careful
to avoid electric shock.
When the LCD shows the symbol of , you must change the battery in time to ensure the
measuring accuracy.
Turn off the power after finishing the measurement. If you do not use it for a long time, take
out the battery.
Don't operate this instrument under high temperature or high humidity. Especially, it cannot
be stored in damp environment. If the instrument is affected with damp, its performance will
be damaged.
Don't change the circuits of the instrument at random, otherwise, you will damage the
instrument and be in danger.
Maintenance: Clean the shell of the instrument with wet cloth or mild cleaning agent rather
than abrasive objects or solvent.
Symbols
Lower battery level
Buzzer
Fuse
Grounding
AC
Double insulation
Warning
DC
Diode