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Table of Contents

Title

Page

Overview
Unpacking Inspection
Safety Information
Rules For Safe Operation
International Electrical Symbols
The Meter Structure
Functional Buttons
The Effectiveness of Functional Buttons
Display Symbols
Measurement Operation
A. DC/AC Voltage Measurement
B. Measuring Resistance
C. Testing Diodes
D. Testing for Continuity
E. Frequency Measurement
F. Duty Cycle Measurement

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Model UT207/208: OPERATING MANUAL

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Содержание UT207

Страница 1: ...Model UT207 208 OPERATING MANUAL ...

Страница 2: ...The Meter Structure Functional Buttons The Effectiveness of Functional Buttons Display Symbols Measurement Operation A DC AC Voltage Measurement B Measuring Resistance C Testing Diodes D Testing for Continuity E Frequency Measurement F Duty Cycle Measurement 4 5 6 7 10 11 12 14 15 18 18 20 22 24 26 28 Model UT207 208 OPERATING MANUAL 1 ...

Страница 3: ...t Measurement I UT208 only Temperature Measurement Sleep Mode Specifications A General Specifications B Environmental Requirements Accuracy Specifications A DC Voltage B AC Voltage C Resistance D Diode Test E Continuity Test F Frequency G Duty Cycle H DC Current Model UT207 208 OPERATING MANUAL 2 ...

Страница 4: ...Title Page 47 48 49 49 50 I AC Current J Temperature UT208 only Maintenance A General Service B Replacing the Battery Model UT207 208 OPERATING MANUAL 3 ...

Страница 5: ...igital Clamp Multimeter Model UT207 UT208 hereafter referred to as the Meter are 3 5 6 digits with steady operations fashionable structure and highly reliable 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 AC DC Voltage AC DC Current Frequency Duty Cycle Resistance D...

Страница 6: ...ent is higher than that the rod type temperature probe must be used Tool box 9V Battery NEDA1604A or 6LF22 1 piece 1 pair 1 pair 1 piece 1 piece Unpacking Inspection Open the package case and take out the Meter Check the following items carefully to see any missing or damaged part In the event you find any missing or damage please contact your dealer immediately Model UT207 208 OPERATING MANUAL 5 ...

Страница 7: ...on with smaller transient overvoltages than CAT IV 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 electr...

Страница 8: ...maged insulation or exposed metal Check the test leads for continuity 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 between the terminals or between any terminal and grounding If the value to be measured is unknown use the maximum measurement position and reduce the range st...

Страница 9: ...e voltage over 70V in DC or 33V rms in AC special care should be taken for there is danger of electric shock Use the proper terminals function and range 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 When using the test leads keep your fing...

Страница 10: ...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 ...

Страница 11: ...urrent DC Direct Current AC or DC Grounding Double Insulated Warning Refer to the Operating Manual Deficiency of Built In Battery Continuity Test Diode Danger of High Voltage Conforms to Standards of European Union Model UT207 208 OPERATING MANUAL 10 ...

Страница 12: ...s When the pressure on the lever is released the jaws will close Functional Buttons Input Terminals LCD Display Rotary Switch 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 1 2 3 4 5 6 7 Model UT207 208 OPERATING MANUAL 11 ...

Страница 13: ...turn the display backlight off otherwise it will automatically off after 1 minute Functional Buttons Below table indicated for information about the functional button operations Button Operation Performed SELECT MAX MIN Press HOLD to enter the Hold mode in any mode the Meter beeps Press HOLD again to exit the Hold mode to return to measurement mode the Meter beeps Turn the rotary switch or press S...

Страница 14: ...n the Meter to display full icon Button Operation Performed HOLD When the Meter is at Hz V and A press Hz to measure frequency and duty cycle Hz ZERO Press ZERO to zeroing the display before measuring DC current Model UT207 208 OPERATING MANUAL 13 ...

Страница 15: ...A N A Rotary Switch Positions V Functional Buttons The Effectiveness of Functional Buttons o C o F Not every functional buttons can be used on every rotary switch positions Below table describe which functional buttons can be used on which rotary switch positions Model UT207 208 OPERATING MANUAL 14 ...

Страница 16: ...Figure 2 Display Symbols see figure 2 Model UT207 208 OPERATING MANUAL 15 ...

Страница 17: ...ge mode in which the Meter automatically selects the range with the best resolution True RMS indicator Indicator for AC voltage or current Indicates negative reading Indicator for DC voltage 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 H AUTO RMS AC DC Model UT207 208 O...

Страница 18: ...1 000 000 ohms Hz Hertz The unit of frequency KHz Kilohertz 1x103 or 1000 hertz MHz Meghertz 1x106 or1 000 000 hertz Volts The unit of voltage mV Millivolt 1x10 3 or 0 001 volts Amperes amps The unit of current The unit of temperature Centigrade temperature The unit of temperature Fahrenheit temperature Duty cycle measurement K M Hz kHz MHz mV V A Model UT207 208 OPERATING MANUAL 17 ...

Страница 19: ...void harms to you or damages to the Meter from eletric shock do not attempt to measure voltages higher than 600V AC DC although readings may be obtained Red Black Red Black Measurement Operation Figure 3 Warning Model UT207 208 OPERATING MANUAL 18 ...

Страница 20: ...ress SELECT to switch to AC measurement mode Press Hz button to measure frequency or duty cycle but the frequency or duty cycle readings obtained from this range is only for reference Connect the test leads across with the object being measured The measured value shows on the display 1 2 3 4 Note When DC AC voltage measurement has been completed disconnect the connection between the testing leads ...

Страница 21: ... resistance The resistance ranges are 660 6 6k 66k 660k 6 6M and 66M To measure resistance connect the Meter as follows Insert the red test lead into the V Hz terminal and black test lead into the COM terminal Set the rotary switch to Resistance measurement is a default or press SELECT to switch to measurement mode 1 2 Red Black Figure 4 Warning Model UT207 208 OPERATING MANUAL 20 ...

Страница 22: ...btain a more precise reading you could remove the objects being tested from the circuit when measuring When resistance measurement has been completed disconnect the connection between the testing leads and the circuit under test and remove testing leads from the input terminals Model UT207 208 OPERATING MANUAL 21 ...

Страница 23: ...iodes Use the diode test to check diodes transistors and other semiconductor devices The diode test sends a current through the semicondutor junction then measure the voltage drop across the junction A good silicon junction drops between 0 5V and 0 8V To test the diode out of a circuit connect the Meter as follows Figure 5 Warning Red Black Model UT207 208 OPERATING MANUAL 22 ...

Страница 24: ...lace the red test lead on the component s anode and place the black test lead on the component s cathode 1 2 3 Note To obtain a more precise reading you could remove the objects being tested from the circuit when measuring When diode testing has been completed disconnect the connection between the testing leads and the circuit under test and remove testing leads from the input terminals Model UT20...

Страница 25: ...t the red test lead into the V Hz terminal and the black test lead into the COM terminal Set the rotary switch to and press SELECT button to select measurement mode The buzzer sounds if the resistance of a circuit under test is less than 30 The buzzer may or may not sound if the resistance of a circuit under test is between 30 to 100 The buzzer does not sound if the resistance of 1 2 3 4 5 Red Bla...

Страница 26: ...igher than 100 Note When continuity testing has been completed disconnect the connection between the testing leads and the circuit under test and remove testing leads from the input terminals Model UT207 208 OPERATING MANUAL 25 ...

Страница 27: ... 660Hz 6 6kHz 66kHz 660kHz 6 6MHz and 66MHz To measure frequency connect the Meter as follows Insert the red test lead into the V Hz terminal and the black test lead into the COM terminal Set the rotary switch to Hz Frequency measurement mode is a default or press SELECT to switch to Hz measurement mode Connect the test leads across with the object 1 2 3 Red Black Figure 7 Warning Model UT207 208 ...

Страница 28: ...leted disconnect the connection between the testing leads and the circuit under test and remove the testing leads away from the input terminals of the Meter being measured The measured value shows on the display Model UT207 208 OPERATING MANUAL 27 ...

Страница 29: ...cle range is 0 1 99 9 To measure duty cycle connect the Meter as follows Insert the red test lead into the V Hz terminal and the black test lead into the COM terminal Set the rotary switch to Hz Press SELECT to switch to measurement mode Connect the test leads across with the object being measured The measured value shows on the display 1 2 3 Red Black Warning Figure 8 Model UT207 208 OPERATING MA...

Страница 30: ...le measurement has been completed disconnect the connection between the testing leads and the circuit under test and remove the testing leads away from the input terminals of the Meter Model UT207 208 OPERATING MANUAL 29 ...

Страница 31: ... to heat and machines reaction force Any shock will cause the changing in reading in the short time Press the lever to open the transformer jaw Center the conductor within the transformer jaw then release the Meter slowly until the trasnformer jaw is completely closed Make sure the conductor to be tested is placed at the center of the transformer jaw otherwise it will casue deviation The Meter can...

Страница 32: ... it displays 0 and it is not allowed to press ZERO to zeroing When current measurement has been completed disconnect the connection between the conductor under test and the jaw and remove the conductor away from the transformer jaw of the Meter conductor at a time to meausre more than one condutor at a time will cause deviation Model UT207 208 OPERATING MANUAL 31 ...

Страница 33: ...enstive not only to the magnet but also to heat and machines reaction force Any shock will cause the changing in reading in the short time Press the lever to open the transformer jaw Center the conductor within the transformer jaw then release the Meter slowly until the trasnformer jaw is completely closed Make sure the conductor to be tested is placed at the center of the 1 2 3 4 Figure 10 Warnin...

Страница 34: ... SELECT to carry out surge current measurement 5 6 To measure surge current Measurement do the following Set the rotary switch to 1000A Press SELECT when the Meter displays the minimum readings The Meter then displays means it is ready to carry out surge current measurement Turn on the electrical equipments at that time to measure the moment start up current Press and hold SELECT for one second to...

Страница 35: ...t measurement has been completed disconnect the connection between the conductor under test and the jaw and remove the conductor away from the transformer jaw of the Meter Note Model UT207 208 OPERATING MANUAL 34 ...

Страница 36: ... Meter as follows Insert the red temperature probe into the V Hz terminal and the black temperature probe into the COM terminal Set the rotary switch to Press SELECT to switch between and measurement mode Place the temperature probe to the object being measured The measured value shows on the display 1 2 3 Figure 11 Model UT207 208 OPERATING MANUAL 35 ...

Страница 37: ...ncluded point contact temperature probe can only be used up to 230 For any measurement is higher than that the rod type temperature probe must be used When the temperature measurement has been completed disconnect the connection between the temperature probe and the object under test and remove the temperature probe away from the input terminals of the Meter Note Model UT207 208 OPERATING MANUAL 3...

Страница 38: ...ong beep one time just before entering Sleep Mode The Meter can be activated by turning the rotary switch or pressing the button based on The Effectiveness of Functional Buttons on page 14 If the Meter is activated by pressing button the Meter will keep the measurement value before entering Sleep Mode Press MAX MIN LIGHT or Hz to turn on the Meter can disable the Sleep Mode feature Model UT207 208...

Страница 39: ...er second Measurement Deviation The conductor being meaured is not placed in the center of the jaw during AC DC current measurement it will cause extra 1 deviation based on the stated accuracy Drop Test 1 meter drop test passed Max Jaw Size 55mm diameter Projected Max Current conductor size 45mm diameter Electro Magnetic When carrying out measurement near the electro magnetic it may cause unstable...

Страница 40: ...irements The Meter is suitable for indoor use Altitude Operating 2000m Storage 10000m Safety Compliances IEC61010 1 IEC61010 2 032 CAT II 600V CAT III 300V over voltage and double insulation standard pollution degree 2 Temperature and humidity Operating 0 30 80 R H 30 40 75 R H 40 50 45 R H Storage 20 60 80 R H Model UT207 208 OPERATING MANUAL 39 ...

Страница 41: ...perating temperature 23 5 Relative humidity 80 R H Temperature coefficient 0 1x specified accuracy 1 A DC Voltage Range 6 600V 66 00V 600 0V Resolution 1mV 10mV 100mV Accuracy 0 8 1 Overload protection 600V DC AC Remark Input Impedance 10MΩ Model UT207 208 OPERATING MANUAL 40 ...

Страница 42: ...quency Response 40Hz 400Hz Change to AC Combine AC and True RMS response method Input sine wave to adjust Non sine wave must follow the below data to adjust Peak factor 1 4 2 0 add 1 0 on the stated accuracy Peak factor 2 0 2 5 add 2 5 on the stated accuracy Peak factor 2 5 3 0 add 4 0 on the stated accuracy Model UT207 208 OPERATING MANUAL 41 ...

Страница 43: ...0MΩ 66 00MΩ Resolution 0 1Ω 1Ω 10Ω 100Ω 1kΩ 10kΩ Accuracy 1 2 2 1 2 1 2 2 1 5 2 Overload protection 250VAC D Diode Test Range Resolution 1mV Accuracy 0 5V 0 8V Open circuit voltage approx 3 0V Overload protection 250VAC Model UT207 208 OPERATING MANUAL 42 ...

Страница 44: ... Open circuit voltage approx 1 2V Overload protection 250VAC Remark The buzzer may or may not beeps when the resistance of a circuit under test is between 30Ω 100Ω The buzzer does not beep when the resistance of a circuit under test is 100Ω Model UT207 208 OPERATING MANUAL 43 ...

Страница 45: ...Hz Resolution 0 1Hz 0 001kHz 0 01kHz 0 1kHz 0 001MHz 0 01MHz Accuracy 0 1 3 Overload protection 250VAC Remarks Input Sensitivity a as follows When a 10Hz the Meter does not response When 10Hz a 100kHz 300mV rms When a 100kHz 600mV rms Model UT207 208 OPERATING MANUAL 44 ...

Страница 46: ...cy For reference only Overload protection 250VAC H DC Current Range 66 00A 1000A Resolution 0 01A 1A Accuracy 2 40 2 8 Overload protection 250VAC The operating temperature must be 0 40 when measuring current Warning Model UT207 208 OPERATING MANUAL 45 ...

Страница 47: ... be more precise 1 Turn off the current of tested conductor 2 Hold the Meter tight and press the lever to open the transformer jaw Center the conductor within the transformer jaws then release the Meter slowly until the transformer jaw is completely closed Make sure the conductor to be tested is placed at the center of the transformer jaw otherwise it will cause 1 0 deviation based on the stated a...

Страница 48: ...have unstable or wrong sensed readings it will not affect measurement result Hold the Meter tight do now release The Hall components are very sensitive not only to the magnet but also to heat and machines reaction force Any shock will cause the changing in reading in the short time Change to AC Combine AC and True RMS response method Input sine wave to adjust Warning Model UT207 208 OPERATING MANU...

Страница 49: ...Peak factor 2 0 2 5 add 2 5 on the stated accuracy Peak factor 2 5 3 0 add 4 0 on the stated accuracy J Temperature UT208 only Range 40 1000 40 1832 Resolution 1 1 Overload protection 250VAC Accuracy 40 0 3 4 0 400 1 3 400 1000 2 10 40 32 3 8 32 752 1 6 752 1832 2 18 Model UT207 208 OPERATING MANUAL 48 ...

Страница 50: ...nside the case A General Service Periodically wipe the case with a damp cloth and mild detergent 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 long time Do not use or store the Meter in a place of humidity h...

Страница 51: ...d lead to possible electric shock or personal injury replace the battery as soon as the battery indicator appears Make sure the transformer jaw and the tets leads are disconected from the circuit being tested before opening the case bottom Warning Model UT207 208 OPERATING MANUAL 50 ...

Страница 52: ...eter s front case down 3 Remove the screw from the battery compartment and separate the battery compartment from the case bottom 4 Take out the old battery and replace with a new 9V battery 6LF22 1604A 5 Rejoin the case bottom and the battery compartment and reinstall the screw Model UT207 208 OPERATING MANUAL 51 ...

Страница 53: ... END This operating manual is subject to change without notice Model UT207 208 OPERATING MANUAL 52 ...

Страница 54: ...Dong Fang Industrial Development District Hu Men Town Dongguan City Guang Dong Province China Postal Code 523 925 Headquarters Uni Trend Group Limited Rm901 9 F Nanyang Plaza 57 Hung To Road Kwun Tong Kowloon Hong Kong Tel 852 2950 9168 Fax 852 2950 9303 Email info uni trend com http www uni trend com Model UT207 208 OPERATING MANUAL 53 ...

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