Certificate No. 956661 UT205/206 Operating Manual Digital Clamp Multimeter P/N : 4141030 Registered Design No.: 0011438.
Model UT205/UT206: OPERATING MANUAL Table of Contents Title Overview Unpacking Inspection Safety Information Rules For Safe Operation International Electrical Symbols The Meter Structure Rotary Switch Functional Buttons Display Symbols Measurement Operation A. DC Voltage Measurement B. AC Voltage Measurement C. Measuring Resistance D. Testing for Continuity E. Testing Diodes F. Capacitance Measurement G. Frequency Measurement H. Measuring Duty Cycle I. Temperature Measurement (Model UT206) J.
Model UT205/UT206: OPERATING MANUAL Overview 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 “Safety Information” and “Rules for Safe Operation” carefully before using the Meter.
Model UT205/UT206: 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 1 2 3 4 5 6 7 Description Operating Manual Test Lead Test Clip Model UT206: Point Contact Temperature Probe 9V Battery (NEDA 1604, 6F22 or 006P) (installed) 1.
Model UT205/UT206: OPERATING MANUAL Safety Information This Meter complies with the standards IEC61010: in pollution degree 2, overvoltage category (CAT. III 600V) and double insulation. CAT. III: Distribution level, fixed installation, 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.
Model UT205/UT206: OPERATING MANUAL Rules For Safe Operation (1) 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: • Never measure current while the test leads are inserted into the input terminals. • 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.
Model UT205/UT206: OPERATING MANUAL Rules For Safe Operation (2) • Remove test leads, temperature probe and test clip from the Meter and turn the Meter power off before opening the Meter case. • 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.
Model UT205/UT206: OPERATING MANUAL The Meter Structure (See figure 1) Transformer Jaws designed to pick up the AC current flowing through the conductor. The Jaw Opening Light. HOLD button. LCD Display. Function Button. V Input Terminal: Input for voltage measurement. COM Input Terminal: Return terminal for all measurements. HzΩ: Model UT205: Input for capacitance, continuity, diode, frequency/duty cycle and resistance measurements.
Model UT205/UT206: OPERATING MANUAL Rotary Switch Below table indicated for information about the rotary switch positions. Rotary Switch Position Function OFF Turn on or off the Meter. V AC voltage measurement range from 4.000V to 600.0V or DC voltage measurement range from 400.0mV to 600.0V V Model UT206: DC voltage measurement range from 400.0mV to 600.0V V Model UT206: AC voltage measurement range from 4.000V to 600.0V Ω Continuity test Ω Resistance measurement range from 400.0Ω to 40.
Model UT205/UT206: OPERATING MANUAL Functional Buttons (1) Below table indicated for information about the functional button operations. Measuring Operation Performed Function Any rotary Turn the display backlight on and off. switch (Yellow) position Hz Hz 1. Press to start the frequency counter; the Meter beeps. 2. Press again to enter duty cycle mode; the Meter beeps. 3. Press again to return to the frequency counter mode; the Meter beeps. V , 1.
Model UT205/UT206: OPERATING MANUAL Functional Buttons (2) Measuring Operation Performed Function V Switches between DC and AC voltage; the Meter beeps. DC voltage is (Blue) default. Model UT205: Switches between diode and continuity measurements; the Meter beeps. Diode is default. Ω Model UT206: Switches between resistance and diode and continuity and capacitance measurements; the Meter beeps. Resistance is default.
Model UT205/UT206: OPERATING MANUAL Display Symbols (1) (See figure 2) ∆ Symbol Meaning AC Indicator for AC voltage or current. The displayed value is the mean value. DC Indicator for DC voltage. The displayed value is the mean value. AUTO The Meter is in the auto range mode in which the Meter automatically selects the range with the best resolution. % Percent: Used for duty cycle measurements. Data hold is active.
Model UT205/UT206: OPERATING MANUAL Display Symbols (2) (See figure 2) Number 12 Symbol Meaning Ω, kΩ, Ω: Ohm. The unit of resistance. MΩ kΩ: kilohm. 1 x 103 or 1000 ohms. MΩ: Megaohm. 1 x 106 or 1,000,000 ohms. F, µF, F: Farad. The unit of capacitance. nF µF: Microfarad. 1 x 10-6 or 0.000001 farads. nF: Nanofarad. 1 x 10-9 or 0.000000001 farads. Hz, kHz, Hz: Hertz. The unit of frequency. Mhz kHz: Kilohertz. 1 x 103 or 1000 hertz. MHz:Megahertz. 1 x 106 or 1,000,000 hertz. V, mV V: Volts.
Model UT205/UT206: OPERATING MANUAL Measurement Operation (1) A. DC Voltage Measurement (See figure 3) red black red black Warning To avoid harms to you or damages to the Meter from electric shock, please do not attempt to measure voltages higher than 600V / 600V rms although readings may be obtained. The DC Voltage ranges are: 400.0mV, 4.000V, 40.00V, 400.0V and 600.0V. To measure DC voltage, connect the Meter as follows: 1.
Model UT205/UT206: OPERATING MANUAL Measurement Operation (2) B. AC Voltage Measurement (See figure 4) red black black red Warning To avoid harms to you or damages to the Meter from electric shock, please do not attempt to measure voltages higher than 600V / 600V rms although readings may be obtained. The AC voltage ranges are: 4.000V, 40.00V, 400.0V and 600.0V. To measure AC Voltage, connect the Meter as follows: 1.
Model UT205/UT206: OPERATING MANUAL Measurement Operation (3) C. Measuring Resistance (See figure 5) black red black red 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: 400.0Ω , 4.000kΩ , 40.00kΩ , 400.0kΩ , 4.000MΩ and 40.00MΩ . To measure resistance, connect the Meter as follows: 1.
Model UT205/UT206: OPERATING MANUAL Measurement Operation (4) • When resistance 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. D. Testing for Continuity (See figure 6) black red 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 for continuity.
Model UT205/UT206: OPERATING MANUAL Measurement Operation (5) E. Testing Diodes (See figure 7) black red Warning To avoid possible damage to the Meter and to the device under test, disconnect circuit power and discharge all high-voltage capacitors before testing diodes. Use the diode test to check diodes, transistors, and other semiconductor devices. The diode test sends a current through the semiconductor junction, and then measures the voltage drop across the junction.
Model UT205/UT206: OPERATING MANUAL Measurement Operation (6) • When diode testing 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. F. Capacitance Measurement (See figure 8) black red black red Warning To avoid damage to the Meter or to the equipment under test, disconnect circuit power and discharge all high-voltage capacitors before measuring capacitance.
Model UT205/UT206: OPERATING MANUAL Measurement Operation (7) • The LCD displays indicating the tested capacitor is shorted or it exceeds the maximum range. • When capacitance 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. G. Frequency Measurement (See figure 9) black red The measurement range is from 10Hz, 100Hz, 1kHz, 10kHz, 100kHz, 1MHz and 10MHz.
Model UT205/UT206: OPERATING MANUAL Measurement Operation (8) H. Measuring Duty Cycle (See figure 10) black red The duty cycle measurement range is: 0.1%~99.9%. To measure duty cycle, do the following: 1. Set up the Meter to measure frequency. 2. To select duty cycle, press Hz until the % symbol is shown on the display. 3. Connect the test leads across with the object being measured. The measured value shows on the display. Note • The LCD displays 000.0% indicating the input signal is high or low level.
Model UT205/UT206: OPERATING MANUAL Measurement Operation (9) I. Model UT206: Temperature Measurement (See figure 11) The temperature measurement range is -40˚C~1000˚C. To measure temperature, connect the Meter as follows: HzΩ terminal 1. Insert the red temperature probe into the and the black temperature probe into the COM terminal. 2. Set the rotary switch to ˚C. 3. Place the temperature probe to the object being measured. The measured value shows on the display.
Model UT205/UT206: OPERATING MANUAL Measurement Operation (10) J. AC Current Measurement (See figure 12) Warning To avoid electric shock, never measure current while the test leads are inserted into the input terminals and disconnect test leads and tested circuit connection. Never attempt an in-circuit current measurement where the opencircuit voltage between the circuit and ground is greater than 600V. Use proper function, and range for the measurement. The measurement ranges of current are: 400.
Model UT205/UT206: OPERATING MANUAL Operation of Hold Mode Warning To avoid possibility of electric shock, do not use Hold mode to determine if circuits are without power. The Hold mode will not capture unstable or noisy readings. The Hold mode is applicable to all measurement functions. • Press HOLD to enter Hold mode; the Meter beeps. • Press HOLD again or turn the rotary switch to exit Hold mode; the Meter beeps. • In Hold mode, is displayed.
Model UT205/UT206: OPERATING MANUAL The BLUE button It uses for selecting the required measurement function when there is more than one function at one position of the rotary switch. Turning on the Display Backlight Warning In order to avoid the hazard arising from mistaken readings in insufficient light or poor vision, please use Display Backlight function. • Press and hold YELLOW button for over 2 seconds to turn the Display Backlight on.
Model UT205/UT206: OPERATING MANUAL General Specifications Max. Voltage 600V rms. between any Terminals and Grounding: Max. Current 1000A AC rms continuous. Measurement of Transformer Jaw: Max. Jaw Size: 40mm. Max. Display: Digital: 3999 Measurement Speed: Updates 3 times/second. Temperature: Operating: 5˚C to +35˚C (41˚F to +95˚F). Storage: -10˚C to +50˚C (14˚F to +122˚F). Relative Humidity: ≤75% @ 0 - 30˚C ; ≤50% @ 31˚C - 40˚C. Altitude: Operating: 2000 m. Storage: 10000 m.
Model UT205/UT206: OPERATING MANUAL Accuracy Specifications (1) Accuracy: ± (a% reading + b digits), guarantee for 1 year. Operating temperature 23˚C±5˚C. Relative humidity <75%. Temperature coefficient: 0.1 x (specified accuracy)/ 1˚C. A. DC Voltage Range Resolution Accuracy Overload Protection 400mV 100µV ±(0.8%+3) 4V 1mV 600V DC 40V 10mV ±(0.8%+1) 600V AC rms 400V 100mV continuous. 600V 1V ±(1%+3) Remarks: Input impedance ≥10MΩ. B.
Model UT205/UT206: OPERATING MANUAL Accuracy Specifications (2) D. Continuity Test Range Resolution 400.0Ω 0.1Ω Accuracy Overload Protection 600Vp Approximate <70Ω Remarks: • Buzzer beeps continuous. • Open circuit voltage approximate 0.45V. E. Diode Test Range Resolution Overload Protection Diode 1mV 600Vp Remarks: • Open circuit voltage approximate 1.48V. • Displays approximate forward voltage drop: 0.5V~0.8V. F.
Model UT205/UT206: OPERATING MANUAL Accuracy Specifications (3) G. Frequency & Duty Cycle Range Resolution Accuracy Overload Protection 10Hz 0.001Hz 100Hz 0.01Hz 1kHz 0.1Hz 10kHz 1Hz ±(0.1%+3) 600Vp 100kHz 10Hz 1MHz 100Hz 10MHz 1kHz 0.1% 0.01% ~99.9% Remarks: • 10Hz~10MHz Range: Input sensitivity as follows: ≤1MHz: ≤300mV rms; >1MHz: ≤600mV rms. • 0.1% ~ 99.9%: Reading is only for reference purpose. H.
Model UT205/UT206: 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. To avoid electrical shock or damage to the Meter, do you get water inside the case. A. General Service • Periodically wipe the case with a damp cloth and mild detergent.
Model UT205/UT206: OPERATING MANUAL ~ END ~ This operating manual is subject to change without notice. © Copyright 2001 Uni-Trend International Limited. All rights reserved.
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Model UT205/UT206: OPERATING MANUAL Manufacturer: Uni-Trend International 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.
