Uni-t UTM 1232 User Manual [ru]

Model UT232

OPERATING MANUAL

Model UT232: OPERATING MANUAL

TABLE OF CONTENTS TITLE PAGE

Overview Unpacking Inspection Safety Information Rules For Safe Operation International Electrical Symbols The Meter Structure A.The Meter Front Structure B.The Meter Back and Bottom Structure Functional Buttons Display Symbols Measurement Operation A. AC Voltage + Frequency Measurement B. AC Current + AC Voltage Measurement C. Active Power + Phase Angle Measurement D. Apparent Power + Reactive Power Measurement E. Power Factor + Phase Angle Measurement F. Active Energy + Time Measurement True RMS Measurement and Average Value Measurement Specifications

3 3 4 4 6 7 7 8 9 12 14 14 16 18 25 27 29 31 32

Model UT232: OPERATING MANUAL

TABLE OF CONTENTS TITLE PAGE

A. General Specifications B. Environmental Requirements Accuracy Specifications A. AC Voltage B. Frequency C. AC Current D. Active Power E. Apparent Power F. Reactive Power G. Power Factor H. Phase Angle I. Active Energy Maintenance A. General Service B. Replacing the Battery

32 33 34 34 34 35 35 36 37 38 38 39 39 39 40

Model UT232: OPERATING MANUAL

Overview Unpacking Inspection

This Operating Manual covers information on safety and cautions. Please read the relevant information carefully and observe all the Warnings and Notes strictly.

Warning

To avoid electric shock or personal injury, read the ìSafety Informationî and ìRules for Safe Operationî carefully before using the Meter.

Model UT232 is a three phase intelligent handheld

digital power clamp meter (hereafter referred to as ìthe Meterî) which has both the features of digital current meter and also power measurement meter.

The Meter can measure Voltage, Current, Active Power, Apparent Power, Reactive Power , Power Factor, Phase Angle, Frequency, Active Energy and etc.

Open the package case and take out the Meter. Check the following items carefully to see any missing or damaged part:

Item

1 2 3 4 5 6 7 8 9 10 11 12 13

Description

English Operating Manual Red Test Lead Black Test Lead Blue Test Lead Yellow Test Lead Red Alligator Clip Black Alligator Clip Blue Alligator Clip Yellow Alligator Clip USB Interface Cable Software Tool Box

1.5V Battery (LR6)

Qty

1 piece 1 piece 1 piece 1 piece 1 piece 1 piece 1 piece 1 piece 1 piece 1 piece 1 piece 1 piece 4 pieces

In the event you find any missing or damage, please contact your dealer immediately.

Model UT232: OPERATING MANUAL

Safety Information

This Meter complies with the standards IEC61010: in pollution degree 2, overvoltage category (CAT. III 600V, CAT IV 300V) and double insulation.

CAT. III: Distribution level, fixed installation, with smaller transient overvoltages than CAT. IV CAT.IV: Primary supply level, overhead lines, cable systems etc.

Use the Meter only as specified in this operating manual, otherwise the protection provided by the Meter may be impaired.

In this manual, a Warning identifies conditions and actions that pose hazards to the user, or may damage the Meter or the equipment under test.

A Note identifies the information that user should pay attention to.

International electrical symbols used on the Meter and

in this Operating Manual are explained on page 6.

Rules For Safe Operation

Warning

To avoid possible electric shock or personal injury, and to avoid possible damage to the Meter or to the equipment under test, adhere to the following rules:

Before using the Meter inspect the case. Do not use the Meter if it is damaged or the case (or part of the case) is removed. Look for cracks or missing plastic. Pay attention to the insulation around the connectors.

Inspect the test leads for damaged insulation or exposed metal. Replace damaged test leads with identical model number or electrical specifications before using the Meter.

Do not apply more that the rated voltage, as marked on the Meter.

When measurement has been completed, disconnect the connection between the test leads and the circuit under test, remove the

Model UT232: OPERATING MANUAL

testing leads away from the input terminals of the Meter and turn the Meter power off.

Do not carry out the measurement when the Meterís back case and / or battery door is opened to avoid electric shock.

When the Meter working at an effective voltage over 30V in AC, special care should be taken.

Use the proper terminals and function for your measurements.

Do not use or store the Meter in an environment of high temperature, humidity, explosive, inflammable and strong magnetic field. The performance of the Meter may deteriorate after dampened.

Do not use the Meter if the surface of it is wet or the userís hands are wet.

When using the test leads, keep your fingers behind the finger guards.

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.

When opening the battery door, must make sure the Meter is power off.

When servicing the Meter, use only the same model number or identical electrical specifications replacement parts.

The internal circuit of the Meter shall not be altered at will to avoid damage of the Meter and any accident.

Soft cloth and mild detergent should be used to clean the surface of the Meter when servicing. No abrasive and solvent should be used to prevent the surface of the Meter from corrosion, damage and accident.

The Meter is suitable for indoor use.

Turn the Meter off when it is not in use and take out the battery when not using for a long time.

Constantly check the battery as it may leak when it has been using for some time, replace the battery as soon as leaking appears. A leaking battery will damage the Meter.

International Electrical Symbols

AC (Alternating Current) Grounding Double Insulated Warning. Refer to the Operating Manual Deficiency of Built-In Battery Danger of High Voltage Conforms to Standards of European Union

Model UT232: OPERATING MANUAL

The Meter Structure

A. The Meter Front Structure (see figure 1)

Black Red Blue Yellow

Figure 1

Transformer Jaw: designed to pick up the AC and DC current flowing through the conductor. It could transfer current to voltage. The tested conductor must vertically go through the Jaw center.

Hand Guards: to protect userís hand from touching the dangerous area.

Power button

Max/ button

MENU button

LOAD button (recall data)

SELECT button (press to select alternate function and sum of Watts measurement)

MIN/ button

V3 Input Terminal (Third phase measurement)

V2 Input Terminal (Second phase measurement)

V1 Input Terminal (First phase measurement)

COM Input Terminal

CLEAR button (maximum and minimum)

Model UT232: OPERATING MANUAL

14 15 16 17 18 19 20

button (Sum) SAVE button (data store button) USB button LIGHT button (auto display backlight button) HOLD button LCD Display Testing Leads (Red, Black, Blue and Yellow)

B. The Meter Back and Bottom Structure

(see figure 2)

Figure 2

1 Infrared slot 2 USB Interface Cable

Model UT232: OPERATING MANUAL

Functional Buttons

Below table indicated for information about the functional button operations.

Button POWER

HOLD

LIGHT

Operation Performed

Press and hold POWER for 1 second to turn the Meter on. Press POWER again to turn the Meter off. Press HOLD to enter the Hold mode in any mode, beeps. Press HOLD again to exit the Hold mode to return to measurement mode, the Meter beeps and Press LIGHT to turn the display backlight on. The display backlight will be off automatically after 30 seconds. Press MENU to display the following functions in sequence: AC Voltage (main display) + Frequency

appears and

disappears.

the Meter

Button MENU

MAX/

Operation Performed

(secondary display) AC Current (main display) + AC V oltage (secondary display) Active power (main display) + Phase angle (secondary display) Apparent power (main display) + Reactive power (secondary display) Power factor (main display) + Phase angle (secondary display) Active Energy (main display) + Time (secondary display) Press to start recording of maximum value, it valid at voltage, current, active power and apparent power ranges only. Press once at LOAD mode, MR icon shown, the Meter displays the next stored reading, the left secondary display showing the index increase one. Press once at mode, CAL icon shown,

Model UT232: OPERATING MANUAL

Button MAX/

USB

LOAD

Operation Performed

the Meter steps through sum of active power (main display) + sum of reactive power (secondary display) and sum of power factor (main display) + sum of apparent power. Press USB once to turn the USB interface on, USB appears and the Meter beeps. Press USB again to turn the USB interface off, USB disappears and the Meter beeps. It is invalid at active energy mode Press once to enter LOAD mode, MR appears and the Meter beeps. Press again to exit LOAD mode, MR disappears and the Meter beeps. Press and hold LOAD for 1 second to display the stored data quickly. At Active power (main display) + Phase angle (secondary display) mode, press

once button to sum up the current

Button

SAVE

Operation Performed

first phase of 3 phase measurement result. Then carry out second phase power measurement. Press phase power measurement result, then carry out third phase power measurement. Press power measurement result, then press SELECT to enter the measurement of sum of the watts mode, the display shows the 3 phase sum of the watts value. Press once to store single reading, MEM appears and the Meter beeps. Press and hold for over 1 second to continuous store reading, MEM blinks and the Meter beeps. The index number shown on the left secondary display keep on increasing. Press SAVE again

again to sum up the second

again to sum up the third phase

Model UT232: OPERATING MANUAL

Button

SELECT

MIN /

Operation Performed

to exit. The maximum number of data store is 99, when it achieves 99, the Meter shows FUL. Press CLEAR to clear the stored reading in order to store next reading.

At active power (main display) + phase angle (secondary display) mode, press SELECT button to step through first phase, second phase, third phase and sum of watts. At other mode, press SELECT to step through first phase, second phase and the third phase. Press to start recording of minimum value, it valid at voltage, current, active power and apparent power ranges only. Press once at LOAD mode, MR icon shown, the Meter displays the previous stored reading, the left secondary display showing the index decrease one. Press once at mode, CAL icon shown,

Button

CLEAR

Operation Performed

the Meter steps through sum of active power (main display) + sum of reactive power (secondary display) and sum of power factor (main display) + sum of apparent power.

At active energy range, press to reset time the zero, then restart the timing. At all other ranges, press to clear stored readings.

Model UT232: OPERATING MANUAL

Display Symbols (see figure 3)

Figure 3

Number

1 2 3 4 5 6 7 8 9

Symbol USB DC

1 2 3

h mm

Hz, PG, KVAr

Meaning

Data Output is in progress Indicator for DC measurement First phase symbol Second phase symbol Third phase symbol Unit for hour Unit for minute Watt: Sum of Watt The battery is low.

Warning: To avoid false readings, which could lead to possible electric shock or personal injury, replace the battery as soon as the battery indicator appears.

Unit for second Symbol of Unit. Hz: Hertz.The unit of frequency. PG: The unit of phase angle KVAr. The unit of reactive power

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