UNI-T UT56 Operating Manual

Contents

A. Your Meters Feature
B. Specifications

C. Making Measurements
D. Maintenance
E. Accessories
F. Using Holster
G. Using Strap

Introduction

UT56 is one type of UNI-T brand new UT50 series
Multimeters with 4 1/2 digits, which has steady
function and is a highly reliable hand-held measuring
instrument. The Meter uses large scale of integrated
circuit with double integrated A/D converter as its
core and has full range overload protection. The
Meter can measure DC current, AC current, DC
Voltage, AC Voltage, Resistance, Capacitance,
Diode, Transistor, Frequency and Continuity Beeper,
which is an ideal measuring tool for users.

Model UT56: OPERATING MANUAL

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Safety Rules

l Use the Meter only as specified in this

manual, otherwise the protection provided

by the Meter may be impaired.

l Do not operate the Meter before the cabinet

has been closed and screwed safely as

terminal can carry voltage.

l Make sure before each measurement the

Meter is set to the suitable range.

l Before using the Meter, please inspect

the cabinet and test leads for damaged

insulation or exposed metal.

l Connect the red and black test lead to the

correct measuring input jack properly.

l Do not input values over the maximum range

of each measurement to avoid damages of

the Meter.

l Do not turn the rotary function switch during

V oltage and Current measurement, otherwise

the Meter could be destroyed .

l Make sure to use new fuses with proper

rating in stead of bad fuses.

l To avoid electric shock or damages, do not

apply more than 1000V between the"COM"

terminals and " " earth ground.

l Use caution when working with Voltages

above 60V (DC) or 30Vrms (AC). These

Voltages pose shock hazard.

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Low Battery Earth Ground
Safety Rules

Double Insulated

AC

Diode

Dangerous Voltages

DC

Buzzer

Fuse

l Replace the battery as soon as the battery
indicator" "appears. With a low battery,
the Meter might produce false readings
that can lead to electric shock and personal
injury.
l T urn off the Meter once finished measuring.
Fetch out the battery, when the meter will
not be used for long period.
l Do not operate the Meter under adverse
environmental condition including high
temperature and especially humid area as
the Meter's function may be effected after
moisturizing.
l To avoid damages and dangerous, do not
change the circuit on your own.
l Periodically wipe the cabinet with a damp
cloth and mid detergent. Do not use
abrasives or solvents.

l Dispose the used battery proper.
l International Electrical Symbols.

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A. Your Meters Feature

“ ”

“ ”

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B-3 Direct Current Current (DC Current)

2mA

20mA

200mA

20A

0.1µV
1µV

10µV

1mV

Range Resolution

(0.8% +5)

Accuracy

(2% +10)

(0.5% +5)

Overload protection: Below 200mA with 0.3
A/250V Fused. No fuse protection on 20A.
Max current input: 20A (above 10A for 15 seconds
maximum).
Measuring voltage drop: Full ranges are 200mV.

B-4 Alternate Current Current (AC Current)

2mA

20mA

200mA

20A

0.1µV
1µV

10µV

1mV

Range Resolution

(1.2% +10)

Accuracy

(2.5% +10)

(0.8% +10)

Overload protection: Below 200mA with0.3A/
250V Fused. No fuse protection on 20A.
Max current input:20A (above 10A for 15seconds
maximum).
Measuring voltage drop: Full ranges are 200mV
Display: Average value(RMS of Sine Wave).

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