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P/N: 41451533
UT232
Digital Power Clamp Meter
Operating Manual
Model UT232OPERATING MANUAL
TABLE OF CONTENTSTITLE PAGE
Model UT232: OPERATING MANUAL
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OverviewUnpacking InspectionSafety InformationRules For Safe OperationInternational Electrical SymbolsThe Meter Structure A.The Meter Front Structure B.The Meter Back and Bottom StructureFunctional ButtonsDisplay SymbolsMeasurement 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 MeasurementTrue RMS Measurement and Average Value MeasurementSpecifications
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Model UT232: OPERATING MANUAL
TABLE OF CONTENTSTITLE PAGE
A. General Specifications B. Environmental RequirementsAccuracy 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 EnergyMaintenance A. General Service B. Replacing the Battery
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Model UT232: OPERATING MANUAL
This Operating Manual covers information on safetyand cautions. Please read the relevant informationcarefully and observe all the Warnings and Notesstrictly.
Warning
To avoid electric shock or personal injury, read the“Safety Information” and “Rules for Safe Operation”carefully before using the Meter.
Model UT232 is a three phase intelligent handhelddigital power clamp meter (hereafter referred to as “theMeter”) which has both the features of digital currentmeter and also power measurement meter.
The Meter can measure Voltage, Current, Active Power,Apparent Power, Reactive Power, Power Factor, PhaseAngle, Frequency, Active Energy and etc.
Open the package case and take out the Meter. Checkthe following items carefully to see any missing ordamaged part:
Item12345678910111213
DescriptionEnglish Operating ManualRed Test LeadBlack Test LeadBlue Test LeadYellow Test LeadRed Alligator ClipBlack Alligator ClipBlue Alligator ClipYellow Alligator ClipUSB Interface CableSoftwareTool Box1.5V Battery (LR6)
Qty1 piece1 piece1 piece1 piece1 piece1 piece1 piece1 piece1 piece1 piece1 piece1 piece4 pieces
In the event you find any missing or damage, pleasecontact your dealer immediately.
Overview Unpacking Inspection
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Model UT232: OPERATING MANUAL
Safety InformationThis Meter complies with the standards IEC61010: inpollution degree 2, overvoltage category (CAT. III 600V,CAT IV 300V) and double insulation.
CAT. III: Distribution level, fixed installation, with smallertransient overvoltages than CAT. IVCAT.IV: Primary supply level, overhead lines, cablesystems etc.
Use the Meter only as specified in this operating manual,otherwise the protection provided by the Meter may beimpaired.
In this manual, a Warning identifies conditions andactions that pose hazards to the user, or may damagethe Meter or the equipment under test.
A Note identifies the information that user should payattention to.
International electrical symbols used on the Meter and
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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 theequipment under test, adhere to the following rules:
Before using the Meter inspect the case. Donot use the Meter if it is damaged or the case(or part of the case) is removed. Look for cracksor missing plastic. Pay attention to the insulationaround the connectors.Inspect the test leads for damaged insulationor exposed metal. Replace damaged test leadswith identical model number or electricalspecifications before using the Meter.Do not apply more that the rated voltage, asmarked on the Meter.When measurement has been completed,disconnect the connection between the testleads and the circuit under test, remove the
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Model UT232: OPERATING MANUAL
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testing leads away from the input terminals ofthe Meter and turn the Meter power off.Do not carry out the measurement when theMeter’s back case and / or battery door is openedto avoid electric shock.When the Meter working at an effective voltageover 30V in AC, special care should be taken.Use the proper terminals and function for yourmeasurements.Do not use or store the Meter in an environmentof high temperature, humidity, explosive,inflammable and strong magnetic field. Theperformance of the Meter may deteriorate afterdampened.Do not use the Meter if the surface of it is wetor the user’s hands are wet.When using the test leads, keep your fingersbehind the finger guards.Replace the battery as soon as the batteryindicator appears. With a low battery, theMeter might produce false readings that canlead to electric shock and personal injury.
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When opening the battery door, must make surethe Meter is power off.When servicing the Meter, use only the samemodel number or identical electricalspecifications replacement parts.The internal circuit of the Meter shall not bealtered at will to avoid damage of the Meter andany accident.Soft cloth and mild detergent should be usedto clean the surface of the Meter when servicing.No abrasive and solvent should be used toprevent 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 takeout the battery when not using for a long time.Constantly check the battery as it may leakwhen it has been using for some time, replacethe battery as soon as leaking appears.A leaking battery will damage the Meter.
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Model UT232: OPERATING MANUAL
International Electrical Symbols
AC (Alternating Current)GroundingDouble InsulatedWarning. Refer to the Operating ManualDeficiency of Built-In BatteryDanger of High VoltageConforms to Standards of European Union
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Model UT232: OPERATING MANUAL
Figure 1
1
2
34567
89
10
111213
Transformer Jaw: designed to pick up the ACand DC current flowing through the conductor. It could transfer current to voltage. The testedconductor must vertically go through the Jawcenter.Hand Guards: to protect user’s hand fromtouching the dangerous area.Power buttonMax/ buttonMENU buttonLOAD button (recall data)SELECT button (press to select alternatefunction and sum of Watts measurement)MIN/ buttonV3 Input Terminal (Third phase measurement)V2 Input Terminal(Second phase measurement)V1 Input Terminal (First phase measurement)COM Input TerminalCLEAR button (maximum and minimum)
Black Red Blue Yellow
The Meter Structure
A. The Meter Front Structure (see figure 1)
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Model UT232: OPERATING MANUAL
1 Infrared slot2 USB Interface Cable
Figure 2
14151617181920
button (Sum)SAVE button (data store button)USB buttonLIGHT button (auto display backlight button)HOLD buttonLCD DisplayTesting Leads (Red, Black, Blue and Yellow)
B. The Meter Back and Bottom Structure (see figure 2)
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Model UT232: OPERATING MANUAL
Functional ButtonsBelow table indicated for information about the functionalbutton operations.
ButtonPOWER
HOLD
LIGHT
MENU
Operation PerformedPress and hold POWER for 1 second toturn the Meter on.Press POWER again to turn the Meter off. Press HOLD to enter the Hold mode inany mode, appears and the Meterbeeps. Press HOLD again to exit the Holdmode to return to measurement mode,the Meter beeps and disappears. Press LIGHT to turn the display backlighton. The display backlight will be offautomatically after 30 seconds.Press MENU to display the followingfunctions in sequence: AC Voltage (main display) + Frequency
ButtonMENU
MAX/
Operation Performed (secondary display) AC Current (main display) + AC Voltage (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,
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Model UT232: OPERATING MANUAL
ButtonMAX/
USB
LOAD
Operation Performedthe Meter steps through sum of activepower (main display) + sum of reactivepower (secondary display) and sum ofpower factor (main display) + sum ofapparent 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 Operation Performed first phase of 3 phase measurement result. Then carry out second phase power measurement. Press again to sum up the second phase power measurement result, then carry out third phase power measurement. Press again to sum up the third phase 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
SAVE
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Model UT232: OPERATING MANUAL
Button
At active power (main display) + phaseangle (secondary display) mode, pressSELECT button to step through first phase,second phase, third phase and sum ofwatts.At other mode, press SELECT to stepthrough first phase, second phase and thethird phase.Press to start recording of minimum value,it valid at voltage, current, active powerand apparent power ranges only.Press once at LOAD mode, MR iconshown, the Meter displays the previousstored reading, the left secondary displayshowing the index decrease one.Press once at mode, CAL icon shown,
SELECT
MIN /
Buttonthe Meter steps through sum of activepower (main display) + sum of reactivepower (secondary display) and sum ofpower factor (main display) + sum ofapparent power.
CLEAR
Operation Performedto exit. The maximum number of data storeis 99, when it achieves 99, the Meter showsFUL. Press CLEAR to clear the storedreading in order to store next reading.
Operation Performed
At active energy range, press to resettime the zero, then restart the timing.At all other ranges, press to clear storedreadings.
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Model UT232: OPERATING MANUAL
Display Symbols (see figure 3)
Figure 3
123456789
1011
MeaningData Output is in progressIndicator for DC measurementFirst phase symbolSecond phase symbolThird phase symbolUnit for hourUnit for minuteWatt: Sum of WattThe battery is low.
Warning: To avoid falsereadings, which could lead topossible electric shock orpersonal injury, replace thebattery as soon as the batteryindicator appears.Unit for secondSymbol of Unit.Hz: Hertz.The unit of frequency.PG: The unit of phase angleKVAr. The unit of reactive power
SymbolUSBDC
123
hmm
W
s
Hz,PG,KVAr
Number
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Model UT232: OPERATING MANUAL
Number121314151617
18192021
22
23242526
MeaningMinimum readingAnalogue Bar GraphOverloadingRulerMaximum readingIndicator for clear the storedreadingRuler negative symbolHigh voltage symbolIndicates negative readingIndicator for AC voltage orcurrentIndicator for recall the storedreadingFrequency symbolIndicator for data storeIndicator for data stored is fullData hold is active
SymbolMIN
MAXCLR
AC
MR
FREQMEMFUL
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Model UT232: OPERATING MANUAL
Figure 4
Black
Red
Blue
Yellow
Measurement Operation
Preparation
Press and hold POWER for one second to turn theMeter on. The default range is the last measurementrange when you turned off the Meter.Replace the battery as soon as the battery indicator“ ” appears on the display.
A. AC Voltage (main display) + Frequency (secondary display) Measurement (see figure 4)
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Model UT232: OPERATING MANUAL
The AC Voltage ranges are:15V, 100V, 300V and 600V
The frequency range is:20Hz~500Hz
To measure AC voltage + frequency, connect the Meteras follows:
1.
2.
3.
4.
Insert the red test lead into the V1 terminal, bluetest lead into the V2 terminal, yellow test lead toV3 input terminal and black test lead to the COMinput terminal.Press the MENU to select Voltage (main display)+ Frequency (secondary display) range.Connect the red test leads (V1 input terminal), bluetest leads (V2 input terminal) and yellow test leads(V3 input terminal) to the corresponding threephases loaded live wire. Black test lead (COMinput terminal) to the corresponding three phasesloaded neutral wire.Press SELECT to select phase location, the displayshows the corresponding phase symbol. V1 meansthe first phase 1, V2 means the first phase 2,V3 means the first phase 3.
5.
6.
7.
8.
The display shows the corresponding True RMSvoltage value and frequency value of each phase.Press MAX/ , the LCD displays MAX, it startsrecording the maximum AC voltage True RMS value.Press MAX/ again to show the current AC voltageTrue RMS value.Press MIN/ the LCD displays MAX, it startsrecording the minimum AC voltage True RMS value.Press MAX/ again to show the current AC voltageTrue RMS value.The display shows OL when the input voltage ishigher than 600V rms.
Note
When the measurement has been completed,disconnect the connection between the testing leadsand the circuit under test and remove testing leadsfrom the input terminals.
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Model UT232: OPERATING MANUAL
B. AC Current (main display) + AC Voltage (secondary display) Measurement (see figure 5)
Figure 5
The AC current ranges are: 40A, 100A, 400A and 1000A
The AC Voltage ranges are: 15V, 100V, 300V and 600V
To measure AC current + AC voltage, connect the Meteras follows:
1.
2.3.
4.
5.
Press the MENU to select AC Current (main display)+ AC Voltage (secondary display) range.Press the lever to open the transformer jaw.Center the conductor within the transformer jaw,then release the Meter slowly until the trasnformerjaw is completely closed, Make sure the conductorto be tested is placed at the center of the transformerjaw, otherwise it will casue deviation. The Metercan only measure one conductor at a time, tomeausre more than one condutor at a time willcause deviation.The double display shows the AC current TrueRMS value and AC voltage True RMS value.Press MAX/ , the LCD displays MAX, it startsrecording the maximum AC current True RMS value.Press MAX/ again to show the present AC
6.
7.
True RMS value.Press MIN/ , the LCD displays MAX, it startsrecording the minimum AC current True RMS value.Press MAX/ , again to show the present AC currentTrue RMS value.The display shows OL when the current of thetested conductor is higher than 1000A rms.
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Model UT232: OPERATING MANUAL
Note
When the measurement has been completed,disconnect the connection between the conductorunder test and the jaw, and remove the conductoraway from the transformer jaw of the Meter.
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Model UT232: OPERATING MANUAL
C. Active Power (main display) + Phase Angle (secondary display) Measurement
The active power ranges are:40A, 100A, 400A and 1000A
The phase angle ranges are: 0° ~360°
Warning
To avoid damages to the Meter or harms to you, doyou measure higher than AC voltage 600 v.r.s. andAC current 1000A v.r.s.
To measure active power + phase angle, connect theMeter as follows:
1.
2.
Press the MENU to select Active power (maindisplay) + Phase angle (secondary display) range.Press the lever to open the transformer jaw, andclamp them to the corrresponding phase of testedconductor. If user needs to mesaure any phase ofthe 3 phase, then clamp them to that phase’sconductor.
3. Connecting method (see figure 6, 7, 8):
Figure 6
Model UT232: OPERATING MANUAL
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Black
Red
Blue
Yellow
Insert red test leads to V1 input terminal.Insert blue test leads to V2 input terminalInsert yellow test leads to V3 input terminal andconnecting it to every live wire of the 3 phase.Insert black test leads to COM input terminal andconnect it to the neutrual wire of the 3 phase.
Figure 7
Model UT232: OPERATING MANUAL
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Insert red test leads to V1 input terminal.Insert blue test leads to V2 input terminalInsert black test leads to COM input terminal andconnect it to the neutrual wire of the 3 phase.
Black
Red
Blue
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Model UT232: OPERATING MANUAL
Figure 8
Insert red test lead to V1, V2 or V3 input terminalcorresponding to one of 1, 2 or 3 phaseInsert black test leads to COM input terminal.Connecting the two test leads to live and neutualwires.
Black
Red
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Model UT232: OPERATING MANUAL
Figure 9
Figure 10
Figure 11
Figure 12
4. When measuring 3 phases 4 wires: (see figure 9, 10, 11, 12, 13, 14, 15, 16)
Press SELECT to choose first phase 1, seefigure 9. The double displays show the acitvepower kW value and also the PG value of 1.
If necessary, press to get the sum of watts asfigure 10.
After sum up the current power measurement valueof the first phase, then press SELECT to choose thesecond phase 2, as figure 11
The double display shows the value of acitve powerkW and PG of 2.If ncessary, press to get the sum of watts as figure12.
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Figure 14
Figure 15
Figure 13
After sum up the current power meaursuremnt valueof the second phase, then press SELECT again tochoose the third phase 3, as figure 13.
The double display shows the value of acitve powerKW and PG of 3.If ncessary, press to get the sum of watts as figure14.
After sum up the current power measurement valueof the third phase, finally press SELECT again todisplay the 3 phase sum of acitve power value andreactive power value.Press MAX/ or MIN/ as figure 15 to step throughin sequence three phase sum of active power+threephase sum of reacitve power, and three phase sumof power factor + 3 phase sum of apparent power.
Model UT232: OPERATING MANUAL
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Figure 16
5. When measuring 3 phase 3 wires:
The first and second phase measuring method issame as 3 phase 4 wires.Jump over the third phase measurement.Press SELECT to display the 3 phase sum ofactive power and reactive power.Press MAX/ or MIN/ as figure 16 to stepthrough in sequence three phase sum of activepower+three phase sum of reacitve power, andthree phase sum of power factor + 3 phase sumof apparent power.
active power, OL will be displayed when it is overthan that.Press MAX/ , the display shows MAX, it startsrecording the maximum active power value. Pressagain to display the current active power value.Press MIN/ , the display shows MIN, it startsrecording the minimum active power value. Pressagain to display the current active power value.
7.
8.
When there is no input or single phase, the Meterdisplays OL. button is not valid.It can only sum up the current measurement value.The maximum and minimum value cannot besummed up.Only at this range can carry out sum of wattsmeasurement, other ranges cannot carry out thismeasurement.When testing has been completed, disconnect theconnection between the testing leads and the circuitunder test and remove testing leads from the inputterminals.
Note
The maximum power is 600kW of single phase, OLwill be displayed when it is over than that. Themaximum range is 1800kW of three phase sum of
6.
Figure 17
Figure 18
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Model UT232: OPERATING MANUAL
D. Apparent Power (main display) + Reactive Power (secondary display) Measurement
To avoid damages to the Meter or harms to you, doyou measure higher than AC voltage 600V rms andAC current 1000A rms.
Warning
To test for Apparent power (main display) + Reactivepower (secondary display), connect the Meter as follows:
1.
2.
3.
Press the MENU to select Apparent power (maindisplay) + Reactive power (secondary display)range.Press the lever to open the transformer jaw, andclamp them to the corrresponding phase of testedconductor. If user needs to mesaure any phase ofthe 3 phase, then clamp them to that phase’sconductor.The connecting method of 3 phases 4 wires, 3phases 3 wires or single phase 2 wires, see figure6, 7 a nd 8
4. When measuring 3 phase 4 wires:(see figure 17, 18, 19)
Press SELECT to choose the first phase 1,see figure 17.
The double display shows the first phase valueof apparent power kVA and reactive power Kvar.Then press SELECT again to choose the secondphase 2, see figure 18.
Figure 19
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Model UT232: OPERATING MANUAL
The double display shows the second phase valueof apparent power kVA and reactive power Kvar.Press SELECT again to choose the third phase 3,see figure 19.
The double display shows the third phase value ofapparent power kVA and reactive power Kvar.
When measuring 3 phase 3 wires: The first phase and secodn phase operating method is same as three phase 4 wires. Jump over the third phase measurement.The maximum measuring range is 600kW whenmeasuring single phase apparent power kVA andreactive power Kvar, OL wil be displayed when it isover than that.Press MAX/ , the display shows MAX, it startsrecording the maximum apparent power value.Press again to display the current apparent powervalue.Press MIN/ , the display shows MIN, it startsrecording the minimum apparent power value.Press again to display the current apparent powervalue.
5.
6.
7.
8.
Note
When testing has been completed, disconnect theconnection between the testing leads and the circuitunder test and remove testing leads from the inputterminals.
Figure 20
Figure 21
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E. Power Factor (main display) + Phase Angle (secondary display) Measurement
To avoid damages to the Meter or harms to you, doyou measure higher than AC voltage 600V rms andAC current 1000A rms.
Warning
To test for Power factor (main display) + Phase angle(secondary display), connect the Meter as follows:
Press the MENU to select Power factor (maindisplay) + Phase angle (secondary display) range.Press the lever to open the transformer jaw, andclamp them to the corrresponding phase of testedconductor. If user needs to mesaure any phase ofthe 3 phase, then clamp them to that phase’sconductor.The connecting method of 3 phases 4 wires, 3phases 3 wires or single phase 2 wires, see figure6, 7 and 8When measuring 3 phase 4 wires: (see figure 20,21, 22)
1.
2.
3.
4.
Press SELECT to choose the first phase 1,see figure 20.
The double display shows the first phase value ofpower factor PF and phase angle PG.Then press SELECT again to choose the secondphase 2, see figure 21.
Figure 22
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The double display shows the second phase valueof power factor PF and phase angle PG.Press SELECT again to choose the third phase 3,see figure 22.
The double display shows the third phase value ofpower factor PF and phase angle PG.
5. When measuring 3 phase 3 wires:
The first phase and second phase operatingmethod is same as three phase 4 wires.Jump over the third phase measurement.
6. MAX/ and MIN/ are not valid when measuring power factor.
When testing has been completed, disconnect theconnection between the testing leads and the circuitunder test and remove testing leads from the inputterminals.
Note
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Model UT232: OPERATING MANUAL
Figure 23
F. Active Energy (main display) + Time (secondary display) Measurement
Warning
To avoid damages to the Meter or harms to you, doyou measure higher than AC voltage 600V rms andAC current 1000A rms.
To test for Active Energy (main display) + Time(secondary display), connect the Meter as follows:
1.
2.
3.
4.
Press the MENU to select Power factor (maindisplay) + Phase angle (secondary display) range.Press the lever to open the transformer jaw, andclamp them to the corrresponding phase of testedconductor. If user needs to mesaure any phase ofthe 3 phase, then clamp them to that phase’sconductor.The connecting method of 3 phase 4 wires, 3 phases3 wires or single phase 2 wires, see figure 6, 7 and8Press SELECT to choose one of the three phases( 1, 2, 3), see figure 23.
The double display shows the value of tested object’sactive engergy kWh value and the measuring timeof the corresponding phase.The measuring reading gets increasing along withthe time increases. Press HOLD to read a particulartime kWh value. Then the reading and time arelocked, but still continuous accumulate measuringtime.After read the data, press HOLD again to continousmeasurement. kWh value continous accumulateand the measuring time jumps to the presentmeasuring time.When the measuring time is over 24 hours or theMeter is switched to other measuring ranges, activeenergy measuring will stop.
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Model UT232: OPERATING MANUAL
The maximum readinng of acitve energy is9999kWh. OL will be displayed when the readingis over than that.
5. MAX/ and MIN/ are not valid when measuring active energy.6. Press CLEAR to reset the time.
Note
When there is no input signal, it cannot carry outactive energy measurement.When there is input signal, the maximum waitingtime is around 10s before timing.When testing has been completed, disconnect theconnection between the testing leads and the circuitunder test and remove testing leads from the inputterminals.
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True RMS Measurement and Average ValueMeasurement
The True RMS measurement method can measureaccurately the effective value of non-sine wave inputsignal.
Average value measurement method can measure themean value of one sine wave input signal, and thendisplays it as RMS value
When the input waveform has distortion, measuringtolerance will be included. The total tolerance dependson the total distortion. Below table 1 shows the waveformcoefficient and the relationship and the requestedchanging factor of sine wave, square wave, pulserectangle wave, sawtooth triangle wave, RMS valueand average value.
Input Wave PK-PK 0-PK RMS AVGSine
PK0 PK-PK
sine commute(whole wave)
PK0 PK-PK
sine commute(half wave)
PK0 PK-PK
square wavePK0 PK-PK
commuted square wavePK0 PK-PK
pulse rectangle
X0 PK-PKY
D=X/Y
sawtooth trianglePK0 PK-PK
2.828
1.414
2.828
1.800
1.800
0.9/D
3.600
1.414
1.414
2.828
0.900
1.800
0.9/ D
1.800
1.000
1.000
1.414
0.900
1.272
0.9D/2
1.038
0.900
0.900
0.900
0.900
0.900
0.9/D
0.900
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SpecificationsA. General Specifications
Maximum Voltage between any Terminals andgrounding: Refer to different range input protectionvoltage.Display: Multi LCD displays, Maximum display 9999.Ranges: AutoOverloading: Display OL.Battery Deficiency: Display .Data Holding: Display Data Logging: Maximum 99, Single or ContinuousrecordsData RecallMaximum and Minimum value display: Voltage,Current, Active Power and Apparent Power rangesDisplay Backlight: White colourComputer connection: USBCalibration FeatureSleep Mode: To preserve battery life, the Meterautomatically turns off if you do not turn press anybutton for around 15 minutes., except at active factorrange.
Sampling: 3 times per second.Max. Jaw Size: 55mm diameter.Analogue Bar GraphPower: 4 x 1.5V battery (LR6)Dimensions: 303mm x 112mm x 39mmWeight: Approximate 601g
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Model UT232: OPERATING MANUAL
B. Environmental Requirements
The Meter is suitable for indoor use.Altitude: Operating: 2000m Storage: 10000mTemperature and humidity:
Operating: 0 ~ 30 ( 85%R.H) 30 ~ 40 ( 75%R.H) 40 ~ 50 ( 45%R.H)
Storage: -10 ~ +60 ( 85%R.H)Safety/ Compliances: IEC 61010 CAT.III 600V,CAT.IV 300V overvoltage and double insulationstandard, pollution degree 2.Certification:
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Model UT232: OPERATING MANUAL
Accurate SpecificationsAccuracy: (a% reading + b digits), guarantee for 1 year.Operating temperature: 23 5Operating humidity: 45~75%R.H
A. AC Voltage (True RMS)
Range15V100V300V600V
Resolution
0.1V
Accuracy
(1.2%+5)
Allowable Maximum overload protection voltage
600 RMS
Input Impedance
10M
B. Frequency
Range20Hz~500Hz
Resolution1Hz
Accuracy(0.5%+5)
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D. Active Power ( W=V x A x COS )
Current / Voltage
CurrentRange
40A100A400A1000A
15V0.60kW1.50kW6.00kW15.00kW
100V4.00kW10.00kW40.00kW100.0kW
300V12.00kW30.00kW120.0kW300.0kW
600V24.00kW60.00kW240.0kW600.0kW
Voltages Range
AccuracyResolution
(3%+5)<1000kW: 0.01kW
100kW: 0.1kW
Remarks: Allowable maximum overload protection voltage: 600V RMS Allowable maximum overload protection current: 1000A RMS
C. AC Current (True RMS)Range40A100A400A1000A
Resolution
0.1A
1A
Accuracy
(2%+5)
Allowable Maximum overload protection current
1000A RMS
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E. Apparent Power (VA = V x A)
Current / Voltage
CurrentRange
40A100A400A1000A
15V0.60kVA1.50kVA6.00kVA15.00kVA
100V4.00kVA10.00kVA40.00kVA100.0kVA
300V12.00kVA30.00kVA120.0kVA300.0kVA
600V24.00kVA60.00kVA240.0kVA600.0kVA
Voltages Range
AccuracyResolution
(3%+5)<1000kVA: 0.01kVA
100kVA: 0.1kVA
Remarks: Allowable maximum overload protection voltage: 600V RMS Allowable maximum overload protection current: 1000A RMS
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Model UT232: OPERATING MANUAL
F. Reactive Power (Var = V x A x SIN )
Current / Voltage
CurrentRange
40A100A400A1000A
15V0.60kVar1.50kVar6.00kVar15.00kVar
100V4.00kVar10.00kVar40.00kVar100.0kVar
300V12.00kVar30.00kVar120.0kVar300.0kVar
600V24.00kVar60.00kVar240.0kVar600.0kVar
Voltages Range
AccuracyResolution
15V/1000A Range: (4%+10) Other Ranges: (4%+5)<1000kVar: 0.01kVar
100kVar: 0.1kVar
Remarks: Allowable maximum overload protection voltage: 600V RMS Allowable maximum overload protection current: 1000A RMS
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Model UT232: OPERATING MANUAL
G. Power Factor (PF = W / VA)
Range0.3~1(capacitive or inductive)0.3~1(capacitive or inductive)
Accuracy
0.022
Resolution
0.001
Measuring ConditionThe minimum measuring current 10AThe minimum measuring voltage 45VMeasuring current less than 10A ORMeasuring voltage less than 45V
For reference only
H. Phase Angle (PG=acos (PF))
Range0° ~360°
0° ~360°
Accuracy
1°
Resolution
1°
Measuring ConditionThe minimum measuring current 10AThe minimum measuring voltage 45VMeasuring current less than 10A ORMeasuring voltage less than 45V
For reference only
Remarks: Allowable maximum overload protection voltage: 600V RMS Allowable maximum overload protection current: 1000A RMS
Model UT232: OPERATING MANUAL
39
I. Active Energy (kWh)
Range1~9999kWh
Accuracy(3%+2)
Resolution0.001kWh
Remarks: Allowable maximum overload protection voltage:
600V RMS Allowable maximum overload protection current:
1000A RMS
MAINTENANCEThis section provides basic maintenance informationincluding battery replacement instruction.
Do not attempt to repair or service your Meter unlessyou are qualified to do so and have the relevantcalibration, performance test, and serviceinformation.
To avoid electrical shock or damage to the Meter,do not get water inside the case.
Warning
A. General Service
Periodically wipe the case with a damp cloth and milddetergent. Do not use abrasives or solvents.To clean the terminals with cotton bar with detergent,as dirt or moisture in the terminals can affect readings.Turn the Meter power off when it is not in use.Take out the battery when it is not using for a longtime.Do not use or store the Meter in a place of humidity,
Figure 24
Model UT232: OPERATING MANUAL
40
high temperature, explosive, inflammable and strongmagnetic field.
B. Replacing the Battery (see figure 24)To avoid false readings, which could lead to possibleelectric shock or personal injury, replace the batteryas soon as the battery indicator “ ” appears.
Make sure the transformer jaw and the tests leadsare disconected from the circuit being tested beforeopening the case bottom.
Warning
To replace the battery:.
1.
2.3.
4.
5.
Press POWER to turn the Meter off and remove allthe connections from the input terminalsTurn the Meter’s front case down.Remove the screw from the battery door, andseparate the battery door from the case bottom.Take out the old battery and replace with 4 x 1.5Vbattery (LR6).Rejoin the case bottom and the battery compartment,and reinstall the screw.