Model UT602/603: 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. Measuring Resistance B. Diode and Continuity Test C. Capacitance Measurement D. Inductance Measurement E. Transistor hFE Measurement General Specifications Accuracy Specifications A. Resistance Test B. Continuity & Diodes C. Capacitance Test D.
Model UT602/603: OPERATING MANUAL 2
Model UT602/603: 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 Safety Operation” carefully before using the Meter.
Model UT602/603: 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 Description English Operating Manual Qty 1 piece 2 Test Clip 3 9V Alkaline Battery (NEDA1604, 6F22 1 piece 1 pair or 006P) (installed) In the event you find any missing or damage, please contact your dealer immediately. Safety Information This Meter complies with the standards EMC EN61326.
Model UT602/603: 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: l 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. Pay attention to the insulation around the connectors. l Inspect the test clips for damaged insulation or exposed metal.
Model UT602/603: OPERATING MANUAL l Remove test clips from the Meter and turn the Meter power off before opening the Meter case. l When servicing the Meter, use only the same model number or identical electrical specifications replacement parts. l The internal circuit of the Meter shall not be altered at will to avoid damage of the Meter and any accident. l Soft cloth and mild detergent should be used to clean the surface of the Meter when servicing.
Model UT602/603: OPERATING MANUAL International Electrical Symbols Grounding Double Insulated Deficiency of Built-In Battery. Continuity Test. Diode. Capacitance Test Lx Inductance Test Fuse. Warning. Refer to the Operating Manual. Conforms to Standards of European Union.
Model UT602/603: OPERATING MANUAL The Meter Structure (see figure 1) (figure 1) 1. LCD Display 2. Data Hold (UT602) or L-C switch (UT603) 3. Transistor Jack 4. Resistance, Diode and Continuity Input Terminal 5. Capacitance Input Terminal (UT602) or Capacitance and Inductance Input Terminal (UT603) 6. Rotary Switch 7. Power.
Model UT602/603: OPERATING MANUAL Functional Buttons Below table indicated for information about the functional button operations. Button Description Power Press the Power down to turn the Meter on. Press the Power again to turn the Meter power off. Hold Press HOLD once to enter the hold feature, the LCD (UT602 display . only) Press HOLD again to exit hold feature, the disappear. L-C Press L-C down to enter the Capacitance (UT603 measurement mode.
Model UT602/603: OPERATING MANUAL Display Symbols (see figure 2) (figure 2) No. Symbol Meaning 1 Data hold is active. 2 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. 3 β Transistor Test 4 Test of diode. 5 The continuity buzzer is on. Farad. The unit of capacitance 6 pF pF: Picofarad. 1 x 10-12 or 0.000000000001 nF nF: Nanofarad. 1 x 10-9 or 0.
Model UT602/603: OPERATING MANUAL Measurement Operation is not on, l Make sure the Low Battery Display otherwise false readings may be provided. symbol, before carrying l Pay extra attention to the measurement, which is located besides the input terminals of the Meter. A. Measuring Resistance (see figure 3) (figure 3) 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.
Model UT602/603: OPERATING MANUAL Note l When measuring at 20 and 200 range, the test clips can add 0.1 to 0.3 error to resistance. To obtain precise readings in these low-resistance measurement, that is the range 20 and 200 , short circuit the input terminals beforehand and record the reading obtained (called this reading as X). (X) is the additional resistance from the test clips. Then use the equation: measured resistance value (Y) – (X) = precision readings of resistance.
Model UT602/603: OPERATING MANUAL (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 diodes and continuity. Do not input more than DC 60V or AC 30V voltages to avoid electric shock and damage to the Meter. Testing Diodes Use the diode test to check diodes, transistors, and other semiconductor devices.
Model UT602/603: OPERATING MANUAL Note l In a circuit, a good diode should still produce a forward voltage drop reading of 500mV to 800mV; however, the reverse voltage drop reading can vary depending on the resistance of other pathways between the probe tips. l Connect the test clips to the proper terminals as said above to avoid error display. The LCD will display “1” indicating open-circuit for wrong connection. The unit of diode is Volt (V), displaying the positive-connection voltage-drop value.
Model UT602/603: OPERATING MANUAL C. Capacitance Measurement (UT603 only, see figure 5) (figure 5) 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. Use the DC Voltage function to confirm that the capacitor is discharged. The Meter’s capacitance ranges are: 2nF, 20nF, 200nF, 2µF, 20µF, 200µF and 600µF. To measure capacitance, connect the Meter as follows: 1.
Model UT602/603: OPERATING MANUAL Note l To minimize the effect of capacitance stored in the test clips, the test clips should be as short as possible and use the small value jack when measuring small value of capacitance. l The Meter cannot check the quality of the capacitor. l For large capacitor, please make sure the contact is stable and reliable. l When the tested capacitor is leaking or damaged and the tested value is not stable, the capacitor may have problems.
Model UT602/603: OPERATING MANUAL D. Inductance Measurement (see figure 6) (figure 6) To test the inductance, please follow the following procedure: 1. Set the rotary switch to Lx measurement mode. 2. If the tested inductance value is unknown, use the maximum measurement position and decrease the range step by step until a satisfactory reading is obtained. 3. Insert the test clips into the corresponding Lx input terminals. 4. Use the test clips to clip the inductance to carry out the testing. 5.
Model UT602/603: OPERATING MANUAL E. Transistor hFE Measurement (see figure 7) (figure 7) To measure transistor, set up the Meter as follows: 1. Set the rotary switch to hFE measurement mode. 2. Check that the transistor is PNP or NPN type. 3. Insert the Insert the transistor to be measured to the corresponding Transistor Jack 4.
Model UT602/603: OPERATING MANUAL General Specifications l Fused Protection for Inductance Input Terminal (UT602): 0.315A, 250V, fast type fuse, 5x20 mm. Fuse Protection for Inductance and capacitance Input Terminal (UT603): 0.315A, 250V, fast type fuse, 5x20 mm. l Maximum Display: Display: 1999. l Measurement Speed: Updates 2-3 times /second. l Polarity: Auto. (Display “-“ when negative) l Overloading: Display “1” l Range: Manual Ranging l Temperature: o o o o Operating: 0 C~40 C (32 F ~104 F).
Model UT602/603: OPERATING MANUAL Accuracy Specifications Accuracy: (a% reading + b digits),guarantee for 1 year. o o Operating temperature: 23 C 5 C. Relative humidity: < 75%. o Temperature coefficient: 0.1 x (specified accuracy) / 1 C A. Resistance Test Accuracy Range Resolution UT602 20 0.01 200 0.1 2k 1 20k 10 200k 100 2M 1k 20M 10k 2000M 1M UT603 (1%+5) (0.8%+3) (0.8%+1) [2%(rdg-12)+5] Reference only Remarks: l Overload protection: 250V DC or AC rms at all ranges.
Model UT602/603: OPERATING MANUAL B. Continuity & Diodes Function Range Diode Resolution 1mV Continuity 1 Overload Protection 250V rms Remarks: l Diode: Open Circuit Voltage around 5.8V, forward current around 1mA. l Continuity 10 , beeper comes on continuously. > 10 , beeper may or may not comes on. C. Capacitance Test (UT603 only) Range Resolution 2.000nF 0.001nF 20.00nF 0.01nF 200.0nF 0.1nF 2.000µF 0.001µF 20.00µF 0.01µF 200.0µF 0.1µF 600µF 0.
Model UT602/603: OPERATING MANUAL D. Inductance Test Range Resolution 2mH 0.001mH 20mH 0.01mH 200mH 0.1mH Accuracy UT602 UT603 Tested Frequency / Current (2%+8) 1kHz/150µA 2H 0.001H (5%+5) 20H 0.01H (5%+15) 200H 0.1H 100Hz/15µA Reference only Remarks: l Measure of Inductance: 1H=103mH = 106µΗ. l Overload Protection: 0.315A, 250V, fast type fuse, 5x20 mm E.
Model UT602/603: OPERATING MANUAL Maintenance This section provides basic maintenance information including battery and fuse 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 not get water inside the case. A. General Service l Periodically wipe the case with a damp cloth and mild detergent.
Model UT602/603: OPERATING MANUAL B. Replacing the Battery (see figure 8) (figure 8) 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. To replace the battery: 1. Turn the Meter power off and remove all 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. 4.
Model UT602/603: OPERATING MANUAL C. Replacing the Fuse (see figure 9) SC RE W (figure 9) Warning To avoid electrical shock or arc blast, or personal injury or damage to the Meter, use specified fuses ONLY in accordance with the following procedure. To replace the Meter’s fuse: 1. Turn the Meter power off and remove all connections from the terminals. 2. Remove the screw from the battery compartment, and separate the battery compartment from the case bottom. 3.
Model UT602/603: 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 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.
