Model UT58E: 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 and AC Voltage Measurement B. DC and AC Current Measurement C. Measuring Resistance D. Measuring Diodes and Continuity E. Frequency Measurement F. Temperature Measurement G. Capacitance Measurement H.
Model UT58E: OPERATING MANUAL Title Maintenance A. General Services B. Replacing the Fuses C.
Model UT58E: OPERATING MANUAL Overview Warning To avoid electric shock or personal injury, read the “Safety Information” and “Rules for Safety Operation” carefully before using the Meter. Digital Multimeters Model UT58E (hereafter referred to as “the Meter”) is 4 1/2 digits with ex-large LCD, steady operations, fashionable structure and highly reliable hand-held measuring instrument.
Model UT58E: 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 Qty Description English Operating Manual 1 piece Test Lead 1 pair Multi-Purpose Socket 1 piece 1 piece Test Clip 1 piece Point Contact Temperature Probe Holster 1 piece 9V Battery (NEDA 1604, 6F22 or 009P)1 piece In the event you find any missing or damage, please contact your dealer immediately.
Model UT58E: OPERATING MANUAL Safety Information This Meter complies with the standards IEC61010: in pollution degree 2, overvoltage category (CAT. II 1000V, CAT. III 600V) and double insulation. CAT. II: Local level, appliance, PORTABLE EQUIPMENT etc., with smaller transient voltage overvoltages than CAT. III CAT. III: Distribution level, fixed installation, with smaller transient overvoltages than CAT.
Model UT58E: 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: 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 leads for damaged insulation or exposed metal.
Model UT58E: OPERATING MANUAL Rules For Safe Operation (2) l l l l l l l l l l l When using the test leads, keep your fingers behind the finger guards. Disconnect circuit power and discharge all high -voltage capacitors before testing resistance, continuity, diodes, capacitance or current. Before measuring current, check the Meter’s fuses and turn off power to the circuit before connecting the Meter to the circuit. Replace the battery as soon as the battery indicator appears.
Model UT58E: OPERATING MANUAL International Electrical Symbols AC (Alternating Current). DC (Direct Current). Grounding. Double Insulated. Deficiency of Built-In Battery. Warning. Refer to the Operating Manual. Diode. Fuse. Continuity Test. Conforms to Standards of European Union.
Model UT58E: OPERATING MANUAL The Meter Structure (see figure 1) ( figure 1) 1 2 3 4 5 6 7 8 LCD Display HOLD Button. Rotary Switch COM Input Terminal POWER Other Input Terminal.
Model UT58E: OPERATING MANUAL Rotary Switch Below table indicated for information about the rotary switch positions. DC voltage measurement. AC voltage measurement. Transistor Test AC Current Measurement DC Current Measurement Fcx o Capacitance Test C Temperature Measurement Hz Frequency Measurement Diode test Continuity test Resistance measurement.
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Model UT58E: OPERATING MANUAL Display Symbols(1) (see figure 2) ( figure 2) No. Symbol Meaning The battery is low. Warning: To avoid false readings, replace the battery as soon as the battery indicator appears. 1 2 3 AC Warning Symbol. Indicator for AC voltage or current. The displayed value is the mean value. Indicates negative reading. 4 5 6 7 8 Test of diode. The continuity buzzer is on. Date hold is active. Connect Terminal Indicator of connecting test leads into different input terminals.
Model UT58E: OPERATING MANUAL Display Symbols(2) (see figure 2) No. Symbol 9 hFE Meaning The Unit of Transistor Test V: Volts. The unit of voltage. mV: Millivolt. 1 x 10-3 or 0.001 volts. 10 A: Amperes (amps). The unit of current. -3 A ,mA, A mA: Milliamp. 1 x 10 or 0.001 amperes. A: Microamp. 1x 10-6 or 0.000001 amperes. o o C: Centigrade temperature F: Fahrenheit temperature o C, F o kHz nF, F Hertz. The unit of frequency in cycles/second. Kilohertz. 1 x 103 or 1,000 hertz. F: Farad.
Model UT58E: OPERATING MANUAL Measurement Operation(1) To avoid harms to you or damages to the Meter from electric shock, never attempt to measure voltages higher than 1000 or 1000V rms although readings may be obtained.
Model UT58E: OPERATING MANUAL Measurement Operation(2) “ ” B.
Model UT58E: OPERATING MANUAL Measurement Operation(3) Warning Never attempt an in-circuit current measurement where the open circuit voltage between terminals and ground is greater than 60V DC or 30V rms in AC. If the fuse burns out during measurement, the Meter may be damaged or the operator himself may be hurt. Use proper terminals, function, and range for the measurement. When the testing leads are connected to the current terminals, do not parallel them across any circuit.
Model UT58E: OPERATING MANUAL Measurement Operation(4) Note l If the value of current to be measured is unknown, use the maximum measurement position, and reduce the range step by step until a satisfactory reading is obtained.
Model UT58E: OPERATING MANUAL Measurement Operation(5) To measure resistance, connect the Meter as follows: “1” D.
Model UT58E: OPERATING MANUAL Measurement Operation(6) Warning To avoid damage to the Meter or to the equipment under test, disconnect circuit power and discharge all high-voltage capacitors before measuring diodes. To avoid harms to you, never attempt to input voltages higher than 60V DC or 30V rms in AC Measuring Diodes Use the diode test to check diodes, transistors, and other semiconductor devices.
Model UT58E: OPERATING MANUAL Measurement Operation(7) l l The open-circuit voltage is around 3V. 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 terminal of the Meter. Testing for Continuity To test for continuity, connect the Meter as below: 1. Insert the red test lead intoV terminal and the black test lead into the COM terminal. 2. Set the rotary switch to . 3.
Model UT58E: OPERATING MANUAL Measurement Operation(8) Note l When Hz 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. F.
Model UT58E: OPERATING MANUAL Measurement Operation(9) Warning To avoid harm to you or damages to the Meter, never attempt to measure voltages higher than 60V in DC or 30V rms in AC although readings may be obtained. During testing, the operating temperature must be o within 18-23 C, otherwise the obtained reading may not be correct especially measuring low temperature. o o The temperature measurement range is from -40 C~1000 C. To measure temperature, connect the Meter as follows: 1.
Model UT58E: OPERATING MANUAL Measurement Operation(10) G. Capacitance Measurement (see figure 9) ( figure 9) 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. To avoid harms to you, never attempt to input voltages higher than 60V DC or 30V rms AC. To measure capacitance, connect the Meter as follows: 1.
Model UT58E: OPERATING MANUAL Measurement Operation(11) Note l If the value of capacitance to be measured is unknown, use the maximum measurement position, and reduce the range step by step until a satisfactory reading is obtained. l When the tested capacitor is shorted or the capacitor value is overloaded, the LCD display “1”. l To minimize the measurement error caused by the distributed capacitor, the testing lead should be as short as possible.
Model UT58E: OPERATING MANUAL Measurement Operation(12) H. Measuring Transistor (see figure 9) Warning To avoid harms to you, please do not attempt to input voltages higher than 60V DC or 30V rms AC. To measure transistor, connect the Meter as follows: 1. Insert the multi-purpose socket into the V and mA terminal. 2. Set the rotary switch to hFE range. 3.
Model UT58E: 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 15 minutes. When the Meter is under sleep mode, it consumes 10 A current. To activate the Meter, press POWER for two times 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.
Model UT58E: OPERATING MANUAL General Specifications 0.5A, 250V fast type, φ5x20mm. V C input jack’s fuse:0.63A,250V fast type, 5x20mm, to be used on capacitance,temperature and transistor testing input protection. o l l l l l l l l l l l l l l 20A Input Terminal Maximum Display : Unfused. : 19999,updates 2~3 times/second. Range : Manual ranging. Polarity display : Automatically Overloading : Display “1”. Battery Deficiency : Display “ ”.
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Model UT58E: OPERATING MANUAL Accuracy Specifications(3) - 30
Model UT58E: OPERATING MANUAL Accuracy Specifications(4) H.Temperature ±(3%+40) ±(1%+30) ±(2%+50) I. Capacitance J.
Model UT58E: OPERATING MANUAL Maintenance(1) 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 damp cloth and mild detergent.
Model UT58E: OPERATING MANUAL Maintenance(2) 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 off and remove all connections from the terminals. 2. Remove the holster from the Meter. 3. Remove the 3 screws from the case bottom, and separate the case top from the case bottom. 4.
Model UT58E: OPERATING MANUAL Maintenance(3) 3. Remove the 3 screws from the case bottom, and separate the case top from the case bottom. 4. Remove the battery from the battery connector. 5. Replace with a new 9V battery (NEDA1604, 6F22 or 006P). 6. Rejoin the case bottom and case top, and reinstall the 3 screws and the holster. ** END ** This operating manual is subject to change without notice.
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Model UT58E: OPERATING MANUAL Copyright 2001 Uni-Trend International Limited. All rights reserved. Manufacturer: UNI-TREND TECHNOLOGY(DONG GUAN)LIMITED Address: Dong Fang Da Dao, Bei Shan Dong Fang Industrial Development District, Hu Men Town, Dong Guan City, Guang Dong Province, China Headquarters: Uni-Trend International Limited Address: 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.
