Related Manuals for UNI-T UT211
Summary of Contents for UNI-T UT211
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Page 1: Table Of Contents
Model UT211: OPERATING MANUAL Table of Contents Title Page Overview Unpacking Inspection Safety Information Rules For Safe Operation International Electrical Symbols The Meter Structure Functional Buttons Display Symbols Measurement Operation A. DC & AC Voltage Measurement B. AC Current Measurement C. - Page 2 Model UT211: OPERATING MANUAL Title Page B. AC Voltage C. AC Current D. Resistance E. Frequency F. Duty Cycle Maintenance A. General Service B. Replacing the Battery...
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Page 3: Overview
To avoid electric shock or personal injury, read the “Safety Information” and “Rules for Safety Operation” carefully before using the Meter. The Model UT211 (hereafter referred to as “the Meter”) are a 3999 counts 3 3/4 digits auto clamp multimeter, they auto sense on AC & DC voltage, AC current and resistance measurement. -
Page 4: Unpacking Inspection
Model UT211: 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 Operating Manual 1 piece 1 pair Test Lead 9V Battery (NEDA 1604, 6F22 or 0006P) -
Page 5: Safety Information
CAT. IV. Under the influence of Radiated, Radio-Frequency Electromagnetic Field phenomenon, the UT211 may malfunction and can self-recover after the test. Use the Meter only as specified in this operating manual, otherwise the protection provided by the Meter may be impaired. - Page 6 Model UT211: OPERATING MANUAL A Note identifies the information that user should pay attention on. International electrical symbols used on the Meter and in this Operating Manual are explained on page 9.
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Page 7: Rules For Safe Operation
Model UT211: 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: Check for the lever is in good condition when measuring AC current. - Page 8 Model UT211: OPERATING MANUAL Disconnect circuit power and discharge all high-voltage capacitors before testing resistance. Replace the battery as soon as the battery indicator appears or no display when turning on the Meter. With a low battery, the Meter might produce false readings that can lead to electric shock and personal injury.
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Page 9: International Electrical Symbols
Model UT211: OPERATING MANUAL 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. International Electrical Symbols Deficiency of Built-In Battery... -
Page 10: The Meter Structure
Model UT211: OPERATING MANUAL The Meter Structure (see figure 1) 1. Transformer Jaws designed to pick up the AC current flowing through the conductor. 2. LCD Display. 3. Function Buttons 4. Input Terminals Functional Buttons Below table indicated for information about the functional (figure 1) button operations. -
Page 11: Display Symbols
Model UT211: OPERATING MANUAL Display Symbols (see figure 2) (figure 2) Number Symbol Meaning Hz / % Frequency and duty cycle measurement Data hold is active. HOLD Indicator for negative reading “ “ Indicator for AC Voltage. Indicator for DC Voltage... - Page 12 Model UT211: OPERATING MANUAL Number Symbol Meaning Indicator for overloading The Meter is in the auto range mode in which the Auto Meter automatically selects the range with the best resolution. 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.
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Page 13: Measurement Operation
Model UT211: OPERATING MANUAL Measurement Operation The LCD displays full icon while turning on the Meter, then the Meter will enter to resistance testing mode, the LCD display “OL”. A. DC and AC Voltage Measurement (See figure 3) Warning To avoid harms to you or damages to the Meter... - Page 14 Model UT211: OPERATING MANUAL To measure DC and AC voltage, connect the Meter as follows: 1. Insert the red test lead into the V terminal and the black test lead into the COM terminal. 2.Connect the test leads across with the object being measured. When the AC voltage is higher than AC1.4V or DC voltage is higher than ±1.4V, the Meter will...
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Page 15: Ac Current Measurement
Model UT211: OPERATING MANUAL B. AC Current Measurement (See figure 4) To measure current, do the following: correct incorrect 1.Check the lever is in good condition. 2. Press the lever to open the transformer jaws. 3. Center the conductor within the transformer jaw like figure 5 4. -
Page 16: Measuring Resistance
Model UT211: OPERATING MANUAL C. Measuring Resistance (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 measuring resistance. black When the Meter working at an effective voltage over 60V in DC or 30V in AC, special care should be taken for there is danger of electric shock. - Page 17 Model UT211: OPERATING MANUAL Note The test leads can add 0.1 to 0.2 of error to resistance measurement. To obtain precision readings in low-resistance measurement, it is necessary to subtract the value measured when the testing leads are short circuited from the reading.
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Page 18: Frequency And Duty Cycle Measurement
Model UT211: OPERATING MANUAL D. Frequency and Duty Cycle Measurement Frequency Measurement Press Hz% one time when measuring AC voltage, the LCD display will switch to f r e q u e n c y m e a s u r e m e n t m o d e f r o m v o l t a g e m e a s u r e m e n t m o d e . - Page 19 Model UT211: OPERATING MANUAL During voltage, frequency and duty cycle measurement Press HOLD when the Meter is under voltage, frequency and duty cycle measurement mode, the measured data will be hold. When the measuring signal is removed, the hold data will be disappeared. The Meter automatically enters resistance measurement mode.
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Page 20: General Specifications
Model UT211: OPERATING MANUAL General Specifications Maximum Voltage between any Terminals and Grounding: Refer to different range input protection voltage. Maximum Current Measurement: 400A. of Transformer Jaw: Auto Function: Auto detect Maximum Display: Digital: 3999, 3 3/4 digits Overload Display:... - Page 21 Model UT211: OPERATING MANUAL Altitude: Operating: 2000 m. Storage: 10000 m. Battery Type: One piece of 9V (NEDA1604 or 6F22 or 006P). Battery Deficiency: Display Dimensions (HxWxL): 210mm x 75.6mm x 30mm Weight: Approximate 300g (battery included). Safety/Compliances: IEC61010 CAT. II 600V / CAT III 300V overvoltage and double insulation standard.
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Page 22: Accuracy Specifications
Model UT211: OPERATING MANUAL Accuracy Specifications Accuracy: (a% reading + b digits) , guarantee for 1 year. Operating temperature: 23 Relative humidity: 75%. A. DC Voltage Range Resolution Accuracy Overload Remarks Protection 10mV (0.8%+1) Input impedance: Around 10M 400V 100mV... -
Page 23: B. Ac Voltage
Model UT211: OPERATING MANUAL B. AC Voltage Range Resolution Accuracy Overload Remarks Protection Input impedance: Around 10M Displays effective value of sine (1.2%+5) 10mV wave (mean value response). 600V Frequency response: 400V 100mV 50Hz~400Hz. 600V (1.5%+5) Testing sensitivity: AC1.4V C. AC Current... -
Page 24: D. Resistance
Model UT211: OPERATING MANUAL D. Resistance Range Resolution Accuracy Overload Protection (1.2%+2) + test lead short circuit resistance value 600Vp (1.0%+2) 400k (1.2%+2) (1.5%+2) -
Page 25: E. Frequency
Model UT211: OPERATING MANUAL E. Frequency Range Resolution Accuracy Overload Protection 1kHz (1%+3) 600Vp F. Duty Cycle Range Resolution Accuracy Overload Protection 99.9% 0.1% For reference only 600Vp... -
Page 26: Maintenance
Model UT211: 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 27: B. Replacing The Battery
Model UT211: OPERATING MANUAL B. Replacing the Battery (See figure 6) Warning serew To avoid false readings, which could lead to possible electric shock or personal injury, replace the battery as soon as the battery indicator “ ” battery appears or no display when turning on the Meter. - Page 28 Model UT211: OPERATING MANUAL To replace the battery: 1. Turn the meter power off and remove all the connections from the terminals. 2. Remove the screw from the battery compartment, and separate the battery compartment from the case bottom. 3. Remove the battery from the battery compartment.
- Page 29 Model UT211: OPERATING MANUAL...
- Page 30 Model UT211: OPERATING MANUAL Copyright 2005 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...