UNI-T UT209 Operating Manual

Digital clamp multimeter

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Model UT209
OPERATING MANUAL

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Summary of Contents for UNI-T UT209

  • Page 1 Model UT209 OPERATING MANUAL...
  • Page 2: Table Of Contents

    Model UT209: OPERATING MANUAL 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.
  • Page 3 Model UT209: OPERATING MANUAL Title Page G. AC Current 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. DC Current H.
  • Page 4: Overview

    To avoid electric shock or personal injury, read the “Safety Information” and “Rules for Safe Operation” carefully before using the Meter. Digital Clamp Multimeter Model UT209 (hereafter referred to as “the Meter”) are 3 3/4 digits with steady operations, fashionable structure and highly reliable measuring instrument.
  • Page 5: Unpacking Inspection

    Model UT209: OPERATING MANUAL Unpacking Inspection Open the package case and take out the Meter. Check the following items carefully to see any missing or damaged part: Item Description English Operating Manual 1 piece Test Lead 1 pair Tool Box...
  • Page 6: Safety Information

    Model UT209: OPERATING MANUAL Safety Information This Meter complies with the standards IEC61010: in pollution degree 2, overvoltage category (CAT. II 600V, CAT. III 300V) and double insulation. CAT. II: Local level, appliance, PORTABLE EQUIPMENT etc., with smaller transient overvoltages than CAT. III.
  • Page 7: Rules For Safe Operation

    Model UT209: OPERATING MANUAL 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.
  • Page 8 Model UT209: OPERATING MANUAL changeover of range shall be made during measurement is conducted to prevent damage of the Meter. Do not carry out the measurement when the Meter’s back case and battery compartment are not closed to avoid electric shock.
  • Page 9 Model UT209: OPERATING MANUAL 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.
  • Page 10: International Electrical Symbols

    Model UT209: OPERATING MANUAL International Electrical Symbols AC (Alternating Current) 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...
  • Page 11: The Meter Structure

    Model UT209: OPERATING MANUAL The Meter Structure (see figure 1) Hand Guards: to protect user’s hand from touching the dangerous area. Trigger: press the lever to open the transformer jaws. When the pressure on the lever is released, the jaws will close.
  • Page 12: Functional Buttons

    Model UT209: OPERATING MANUAL Functional Buttons Below table indicated for information about the functional button operations. Button Operation Performed Press SELECT button to select the alternate functions including SELECT , and PMAX/PMIN Press and hold for 2 seconds to enter that function internal calibration.
  • Page 13 Model UT209: OPERATING MANUAL Button Operation Performed HOLD Turn the rotary switch or press SELECT button can also exit Hold mode. Press HOLD button for 2 seconds when turning on the Meter to display full icon. , press the button to...
  • Page 14: The Effectiveness Of Functional Buttons

    Model UT209: OPERATING MANUAL The Effectiveness of Functional Buttons 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 Functional Buttons Rotary Switch Positions...
  • Page 15: Display Symbols

    Model UT209: OPERATING MANUAL Display Symbols (see figure 2) Figure 2...
  • Page 16 Model UT209: OPERATING MANUAL Number Symbol Meaning Hz: Hertz. The unit of frequency. KHz: Kilohertz. 1 x 10 or 1000 hertz. kHz, MHz: Meghertz. 1 x 10 or1,000,000 hertz. : Ohm. The unit of resistance. k :Kilohm. 1×10 or 1000 ohms M :Megohm.
  • Page 17 Model UT209: OPERATING MANUAL Number Symbol Meaning 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. Sleep mode is on...
  • Page 18: Measurement Operation

    Model UT209: OPERATING MANUAL Measurement Operation DC/AC Voltage Measurement (see figure 3) Warning To avoid 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.
  • Page 19 Model UT209: OPERATING MANUAL To measure DC/AC voltages, 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 V . DC mesaurement mode and auto ranging is a default.
  • Page 20: Measuring Resistance

    Model UT209: OPERATING MANUAL B.Measuring Resistance (see figure 4) Warning To avoid damages to the Meter or to the devices under test, disconnect circuit power and discharge all the high-voltage capacitors before measuring resistance. The resistance ranges are: 400 , 4k , 40k , 400k...
  • Page 21 Model UT209: OPERATING MANUAL 3. Connect the test leads across with the object being measured. The measured value shows on the display. Note To obtain a more precise reading, you could remove the objects being tested from the circuit when measuring.
  • Page 22: Testing Diodes

    Model UT209: OPERATING MANUAL C. Testing Diodes (see figure 5) Warning To avoid damages to the Meter or to the devices under test, disconnect circuit power and discharge all the high-voltage capacitors before testing diodes. Use the diode test to check diodes, transistors, and other semiconductor devices.
  • Page 23 Model UT209: OPERATING MANUAL To test the diode out of a circuit, 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...
  • Page 24: Testing For Continuity

    Model UT209: OPERATING MANUAL D. Testing for Continuity (see figure 6) Warning To avoid damages to the Meter or to the devices under test, disconnect circuit power and discharge all the high-voltage capacitors before measuring continuity. To test for continuity, connect the Meter as follows: Insert the red test lead into the V Hz terminal and the black test lead into the COM terminal.
  • Page 25 Model UT209: OPERATING MANUAL a circuit under test is higher 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.
  • Page 26: Frequency Measurement

    Model UT209: OPERATING MANUAL E. Frequency Measurement (see figure 7) Warning To avoid 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. The frequency ranges are: 4kHz, 40kHz, 400kHz, 4MHz and 40MHz.
  • Page 27 Model UT209: OPERATING MANUAL Note The maximum amplitude must not exceed 30Vrms. When frequency 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.
  • Page 28: Dc Current Measurement

    Model UT209: OPERATING MANUAL F. DC Current Measurement (see figure 8) Warning The operating temperature must be 0 when measuring current. The measurement ranges of current are: 40A 1000A To measure current, do the following: Set the rotary switch to 40A...
  • Page 29 Model UT209: OPERATING MANUAL not display zero. When the testing current is greater than 400A , it is not necessary to zero. Hold the Meter tight, don’t release. The Hall components are very senstive 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.
  • Page 30 Model UT209: OPERATING MANUAL 5. Power on the tested conductor current, read out the reading after the Meter is stable. 6. This DC currrent measurment result is more accurate. Note The Meter adopts relative value zeroing. Press ZERO to display the present value as stored value and display zero.
  • Page 31: Ac Current Measurement

    Model UT209: OPERATING MANUAL G. AC Current Measurement (see figure 9) Warning The operating temperature must be 0 when measuring current. The measurement ranges of current are: 40A 1000A Set the rotary switch to 40A or 1000A Hold the Meter tight, don’t release. The Hall...
  • Page 32 Model UT209: OPERATING MANUAL the transformer jaw, otherwise it will casue deviation. The Meter can only measure one conductor at a time, to meausre more than one condutor at a time will cause deviation. When the measuring current >1A, press Hz button to toggle between AC current and frequency measurement mode.
  • Page 33: Sleep Mode

    Model UT209: OPERATING MANUAL Sleep Mode To preserve battery life, the Meter automatically turns off if you do not turn the rotary switch or press any button for around 30 minutes. The Meter beeps 3 times in one minute before entering Sleep Mode and one long beep just before entering Sleep Mode.
  • Page 34: Specifications

    Model UT209: OPERATING MANUAL Specifications A.General Specifications: l Maximum Voltage between any Terminals and grounding: Refer to different range input protection voltage. l Display: 3 3/4 digits LCD display, Maximum display 4000. l Polarity: Auto l Overloading: Display OL or –OL.
  • Page 35: Environmental Requirements

    Model UT209: OPERATING MANUAL l Battery Life: typically 150 hours (alkaline battery) l Dimensions: 285.3mm x 105mm x 44.5mm l Weight: Approximate 533g (battery included) B. Environmental Requirements l The Meter is suitable for indoor use. l Altitude: Operating: 2000m Storage: 10000m l Safety/ Compliances: IEC 61010 CAT.II 600V, CAT.III 300V...
  • Page 36: Accuracy Specifications

    Model UT209: OPERATING MANUAL Accurate Specifications Accuracy: (a% reading + b digits), guarantee for 1 year. Operating temperature: 23 Relative humidity: 85%R.H Temperature coefficient: 0.1×(specified accuracy)/1 A. DC Voltage Range Resolution Accuracy Overload protection 400mV 0.1mV (0.8%+3) 0.001V 0.01V (0.8%+1)
  • Page 37: Ac Voltage

    Model UT209: OPERATING MANUAL B. AC Voltage Range Resolution Accuracy Overload protection 400mV 0.1mV (1.2%+20) 0.001V 0.01V (1.2%+5) 600V DC/AC 400V 0.1V 600V (1.5%+5) Remarks: Input Impedance: 10M Frequency Response: 400mV range: 50~100Hz Other ranges: 40Hz~400Hz Change to AC: Couple AC and True RMS response method. Input sine wave to adjust. Non...
  • Page 38: Resistance

    Model UT209: OPERATING MANUAL 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. C. Resistance Range Resolution Accuracy Overload protection (1.2%+2) (1%+2)
  • Page 39: Diode Test

    Model UT209: OPERATING MANUAL D. Diode Test Range Resolution Accuracy Overload protection 0.5V~0.8V (Open circuit voltage 250VAC approx. 3.0V) E. Continuity Test Range Resolution Accuracy Overload protection l The buzzer sounds if the resistance of a circuit under test is less than 30 .
  • Page 40: Frequency

    Model UT209: OPERATING MANUAL F. Frequency Range Resolution Accuracy Overload protection 4kHz 0.001kHz 40kHz 0.01kHz 400kHz 0.1kHz (0.1%+3) 250VAC 4MHz 0.001MHz 40MHz 0.01MHz Remarks: l Input Sensitivity as follows: When 100kHz: 300mV rms When>100kHz: 600mV rms l Input amplitude a: 300mV...
  • Page 41: Dc Current

    Model UT209: OPERATING MANUAL G. DC Current Range Resolution Accuracy Overload protection 0.01A (2%+40) 250VAC 1000A (2%+8) H. AC Current Range Resolution Accuracy Overload protection 0.01A (2%+40) 250VAC 1000A (2%+8)
  • Page 42: Maintenance

    Model UT209: OPERATING MANUAL MAINTENANCE This section provides basic maintenance information including battery replacement instruction. Warning Do not attempt to repair or service your Meter unless you are qualified to do so and have the relevant calibration, performance test, and service information.
  • Page 43: Replacing The Battery

    Model UT209: OPERATING MANUAL inflammable and strong magnetic field. B. Replacing the Battery (see figure 10) Warning To avoid false readings, which could lead to possible electric shock or personal injury, replace the battery as soon as the battery indicator “...
  • Page 44 Model UT209: OPERATING MANUAL To replace the battery:. 1. Turn the Meter off and remove all the connections from the input terminals 2. Turn the Meter’s front case down. 3. Remove the screw from the battery compartment, and separate the battery compartment from the case bottom.
  • Page 45 Model UT209: OPERATING MANUAL * END * This operating manual is subject to change without notice.
  • Page 46 Model UT209: OPERATING MANUAL Copyright 2007 Uni-Trend Group Limited. All rights reserved. Manufacturer: Uni-Trend Technology (Dongguan) Limited Dong Fang Da Dao Bei Shan Dong Fang Industrial Development District Hu Men Town, Dongguan City Guang Dong Province China Postal Code: 523 925...

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