Model UT60A: OPERATING MANUAL Table of Contents Title Page Overview 3 Unpacking Inspection 4 Safety Information 5 Rules For Safe Operation 6 International Electrical Symbols 8 The Meter Structure 9 Rotary Switch 10 Functional Buttons 11 Display Symbols 14 Measurement Ranges 17 A. Selecting a Measurement Range 17 B. Manual Ranging and Autoranging 17 Measurement Operation 19 A. AC & DC Voltage Measurement 19 B. Measuring Continuity, Diodes & Resistance 21 C. Capacitance Measurement 24 D.
Model UT60A: OPERATING MANUAL Title Maintenance A. General Service B. Testing the Fuses C. Replacing the Battery D. Replacing the Fuses RS232C Serial Port A. RS232C Port Cable B. Setting of RS232C Serial Ports C.
Model UT60A: 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. Digital Multimeter Model UT60A (hereafter referred to as "the Meter") has autorange and manual range options with maximum reading 3999.
Model UT60A: 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: Description Qty Operating Manual 1 piece Test Lead 1 pair 9V Battery (NEDA1604, 6F22 or 006P) 1 piece (installed) 4 RS232C Interface Cable 1 piece 5 CD-ROM (Installation Guide & Computer 1 piece Interface Software) In the event you find any missing or damage, please contact your dealer immediately.
Model UT60A: OPERATING MANUAL Safety Information This Meter complies with the standards IEC61010: in pollution degree 2, overvoltage category (CAT. III 1000V, CAT. IV 600V) and double insulation. CAT. III: Distribution level, fixed installation, with smaller transient overvoltages than CAT. IV CAT IV:Primary supply level, overhead lines, cable systems etc. Use the Meter only as specified in this operating manual, otherwise the protection provided by the Meter may be impaired.
Model UT60A: 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 l l l l l l l 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.
Model UT60A: OPERATING MANUAL Rules For Safe Operation (2) l l l l l l l l l l 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. With a low battery, the Meter might produce false readings that can lead to electric shock and personal injury. Remove test leads and RS232C interface cable from the Meter and turn the Meter power off before opening the Meter case.
Model UT60A: OPERATING MANUAL International Electrical Symbols AC (Alternating Current). DC (Direct Current). AC or DC. Grounding. Double Insulated. Deficiency of Built-In Battery. Continuity Test. Diode. Capacitance Test. Fuse. Warning. Refer to the Operating Manual. Conforms to Standards of European Union.
Model UT60A: OPERATING MANUAL The Meter Structure 9
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Model UT60A: OPERATING MANUAL Display Symbols (1) 2 3 4 5 6 7 8 15 9 1 kM nFHz VA AC 16 14 10 ~ 14
Model UT60A: OPERATING MANUAL Display Symbols (2) 15
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Model UT60A: OPERATING MANUAL Measurement Ranges (1) A measurement range determines the highest value the Meter can measure. Most Meter functions have more than one range. See "Accuracy Specifications." A. Selecting a Measurement Range Being in the right measurement range is important: l l If the range is too low for the input, the Meter displays to indicate an overload. If the range is too high, the Meter will not display the most accurate measurement. B.
Model UT60A: OPERATING MANUAL Measurement Ranges (2) To enter and exit the manual range mode: 1. 2. Press RANGE. The Meter enters the manual range mode and turns off. Each presses of RANGE increments the range. When the highest range is reached, the Meter wraps to the lowest range. To exit the manual range mode, press and hold RANGE for over 2 seconds. The Meter returns to the autorange mode and is displayed.
Model UT60A: OPERATING MANUAL Measurement Operation (1) A. AC & DC Voltage Measurement Warning To avoid harms to you or damages to the Meter from electric shock, please do not attempt to measure voltages higher than 1000V / 750V rms although readings may be obtained. AC Voltage Measurement (see figure 3) Red Black (figure 3) The AC voltage ranges are: 4.000V, 40.00V, 400.0V and 750.0V. To measure AC Voltage, connect the Meter as follows: 1. 2. 3.
Model UT60A: OPERATING MANUAL Measurement Operation (2) Note l In each range, the Meter has an input impedance of 10M . This loading effect can cause measurement errors in high impedance circuits. If the circuit impedance is less than or equal to 10k , the error is negligible (0.1% or less). l When AC voltage measurement has been completed, disconnect the connection between the testing leads and the circuit under test.
Model UT60A: OPERATING MANUAL Measurement Operation (3) Note l In each range, the Meter has an input impedance of 10M . This loading effect can cause measurement errors in high impedance circuits. If the circuit impedance is less than or equal to 10k , the error is negligible (0.1% or less). l When DC voltage measurement has been completed, disconnect the connection between the testing leads and the circuit under test. B.
Model UT60A: OPERATING MANUAL Measurement Operation (4) Note l The LCD displays indicating the circuit being tested is open. l When continuity testing has been completed, disconnect the connection between the testing leads and the circuit under test. Testing Diodes (see figure 6) Select red black (figure 6) Use the diode test to check diodes, transistors, and other semiconductor devices.
Model UT60A: OPERATING MANUAL Measurement Operation (5) Note l In a circuit, a good diode should still produce a forward voltage drop reading of 0.5V to 0.8V; however, the reverse voltage drop reading can vary depending on the resistance of other pathways between the probe tips. l Connect the test leads to the proper terminals as said above to avoid error display. l The LCD will display indicating open-circuit for wrong connection.
Model UT60A: OPERATING MANUAL Measurement Operation (6) 3. Connect the test leads across with the object being measured. The measured value shows on the display. Note l The test leads can add 0.1 to 0.2 of error to resistance measurement. To obtain precision readings in low-resistance measurement, that is the range of 400.
Model UT60A: OPERATING MANUAL Measurement Operation (7) 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. Never attempt to input over 60V in DC or 30V rms in AC to avoid personal dangerous. The Meter's capacitance ranges are: 40.00nF, 400.0nF, 4.000µF, 40.00µF, and 100.0µF.
Model UT60A: OPERATING MANUAL Measurement Operation (8) D. Frequency & Duty Cycle Measurement (see figure 9) Select Hz Test Red Black (figure 9) Frequency Measurement The measurement ranges are from 10Hz to 40MHz. To measure frequency, connect the Meter as follows: 1. 2. 3. Insert the red test lead into the HzVΩ terminal and the black test lead into the COM terminal. Set the rotary switch to Hz%; frequency measurement (Hz) is default or press Hz% button to select Hz measurement mode.
Model UT60A: OPERATING MANUAL Measurement Operation (9) Range l Signal Frequency Requirement Range 200mV µA 200µA 10Hz~1kHz mA 20mA A 2A When Hz measurement has been completed, disconnect the connection between the testing leads and the circuit under test. Duty Cycle Measurement The duty cycle measurement range is 0.1% ~ 99.9%. To measure duty cycle: 1. Set up the Meter to measure frequency. 2. To select duty cycle, press Hz again (or until the % symbol is shown on the display). 3.
Model UT60A: OPERATING MANUAL Measurement Operation (10) E. DC or AC Current Measurement (see figure 10) Select DC or AC µA Hz, mA Hz or Hz A. Black Red (figure 10) Warning Never attempt an in-circuit current measurement where the open-circuit voltage between the circuit and ground is greater than 250V. 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.
Model UT60A: OPERATING MANUAL Measurement Operation (11) 4. 5. 6. The Meter defaults to DC current measurement mode. To toggle between DC and AC current measurement function, press BLUE button. AC current is displayed as an mean value (calibrated against sine wave effective value). Break the current path to be tested. Connect the red test lead to the more positive side of the break and the black test lead to the more negative side of the break. Turn on power to the circuit.
Model UT60A: OPERATING MANUAL The POWER button This is a self-lock switch use to turn on or off the power of the Meter. 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. The Use of Relative Value Mode The REL mode applies to all measurement functions except in frequency/duty cycle measurement, it subtracts a stored value from the present value and displays the relative value (∆) as the result.
Model UT60A: 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. l Press HOLD H to enter Hold mode; the Meter beeps. l Press HOLD H again or turn the rotary switch to exit Hold mode; the Meter beeps. l In Hold mode, is displayed.
Model UT60A: OPERATING MANUAL General Specifications l Maximum Voltage between any Terminals: 1000V rms. and Grounding l Fused Protection :0.5A, 250V fast type Glass fuse, 5x20 mm. for AmA Input Terminal l Fused Protection :10A, 250V fast type Glass for 10A Input Terminal fuse, 5x20 mm. l l l : Display:3999. Maximum Display Measurement Speed : Updates 3 times /second. o o o o Temperature: Operating: 0 C~40 C (32 F ~104 F). o o o o Storage : -10 C~50 C(14 F~122 F).
Model UT60A: OPERATING MANUAL Accuracy Specifications (1) 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. AC Voltage Range Resolution 4V 1mV 40V 10mV 400V 100mV 750V 1V Overload Protection Accuracy (1%+5) 1000V DC 750V AC rms continuous. (1.2%+5) Remarks: l Input impedance 10M . l Displays effective value of sine wave (mean value response).
Model UT60A: OPERATING MANUAL Accuracy Specifications (2) C. Continuity, Diodes & Resistance Test Range Continuity Test (400.0 ) Diode 400 4k 40k 400k 4M 40M Resolution Accuracy 0.1 1mV 0.1 1 10 100 1k 10k Approximate 100 N/A (1.2%+2) Overload Protection 600Vp (1%+2) (1.2%+2) (1.5%+2) Remarks: l Continuity Test (400.0 ) Range: Buzzer beeps continuously. Open circuit voltage approximate 0.45V. l Diode Range: Open circuit voltage approximate 1.48V. Displays approximate forward voltage drop reading 0.
Model UT60A: OPERATING MANUAL Accuracy Specifications (3) D. Capacitance Range Resolution 40nF 400nF 4 F 40 F 100 F Accuracy 10pF 100pF 1nF 10nF 100nF Overload Protection (3%+5) 600Vp (4%+5) E. Frequency & Duty Cycle Range 10Hz~ 10MHz 0.1%~ 99.9% (Duty cycle) Resolution N/A Accuracy Overload Protection (0.1%+3) 600Vp 0.01% N/A Remarks: l 10Hz~10MHz Range: Input sensitivity as follows: 1MHz: 300mV rms; >1MHz: 600mV rms. Maximum input amplitude: 30V rms. l 0.1%~99.
Model UT60A: OPERATING MANUAL Accuracy Specifications (4) F. DC Current Overload Protection Range Resolution Accuracy 400 A 4000 A 40mA 400mA 0.1 A 1 A 0.01mA 0.1mA 4A 0.001A 10A 0.01A (1%+2) (1.2%+3) 0.5A, 250V, fast type Glass fuse, 5x20mm 10A, 250V, (1.5%+5) fast type Glass fuse, 5x20mm Remark: l 4A & 10A Range: For continuous measurement 10 seconds and interval time between 2 measurements greater than 15 minutes. G. AC Current Range Resolutio 400 A 4000 A 40mA 400mA 0.1 A 1 A 0.01mA 0.
Model UT60A: 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 l l l Periodically wipe the case with a damp cloth and mild detergent.
Model UT60A: OPERATING MANUAL Maintenance (2) To test the fuse: 1. Set the rotary switch to and select by pressing BLUE button. 2. Plug a test lead into the terminal HzV and touch the probe tip to the 10A or AmA terminal. l If the Meter beeps, the fuse is good. l If the display shows , replace the fuse and test again. l If the display shows any other value, have the Meter serviced and contact your dealer immediately. If the Meter does not work while the fuse is all right, send it to your dealer for repair.
Model UT60A: OPERATING MANUAL Maintenance (3) 2. 3. 4. 5. Remove the screw from the battery compartment, and separate the battery compartment from the case bottom. Remove the battery from the battery compartment. Replace the battery with a new 9V battery (NEDA1604, 6F22 or 006P). Rejoin the case bottom and battery compartment, and reinstall the screw. D.
Model UT60A: OPERATING MANUAL Maintenance (4) 5. 6. 7. Install ONLY replacement fuses with the identical type and specification as follows and make sure the fuse is fixed firmly in the bracket. Fuse 1:0.5A, 250V, fast type Glass fuse, 5x20mm. Fuse 2: 10A, 250V, fast type Glass fuse, 5x20 mm. Rejoin the battery compartment and the case top, and reinstall the screw. Rejoin the case bottom and case top, and reinstall the 2 screws and 2 rubber feet. Replacement of the fuses is seldom required.
Model UT60A: OPERATING MANUAL RS232C Serial Port (1) A. RS232C Port Cable The Meter D-sub 9 Pin Male 2 Computer D-sub D-sub 9 Pin 25 Pin Female Female 2 3 Pin Name Remark RX Receiving Data Transmitting Data Data Terminal Ready 3 3 2 TD 4 4 20 DTR 5 6 5 6 7 6 GND DSR 7 7 4 RTS 8 8 5 CTS Grounding Data Set Ready Request To Send Clear To Send B.
Model UT60A: OPERATING MANUAL RS232C Serial Port (2) C. System Requirements for Installing the UT60A Interface Program To use UT60A Interface Program, you need the following hardware and software: l An IBM PC or equivalent computer with 80486 or higher processor and 640 x 480 pixel or better monitor. l Microsoft Windows 95 or above. l At least 8MB of RAM. l At least 8MB free space in hard drive. l Can access to a local or a network CD-ROM. l A free serial port.
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Model UT60A: 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.
