Model UT70A: OPERATING MANUAL TABLE OF CONTENTS TITLE HIGHLIGHTS NOTES FOR SAFE USAGE FIGURATION AND ACCESSORIES ELECTRIC SYMBOL GENERAL INFORMATION SPECIFICATIONS 1.DC Voltage (DCV) 2.AC Voltage (ACV) 3.DC Current (DCA) 4.AC Current (ACA) 5.Resistance 6.Capacitance 7. Inductance 8.Auto range frequency test 9.Transistor hFE measurement 10.Diode 11.Continuity Buzzer 12.TTL LOGIC Test 13.Temperature Test OPERATION INSTRUCTION 1. Introduction of functional buttons 2. DC Voltage Measurement (DCV) 3.
Model UT70A: OPERATING MANUAL TABLE OF CONTENTS TITLE 11. Transistor Parameter Measurement (hFE) 12. Diode (or PN node of transistor) Measurement( ) 13. Continuity Buzzer Test 14.
Model UT70A: OPERATING MANUAL Operating Manual of UT70A Multimeter HIGHLIGHTS UT70A Multimeter is a hand-held digital multimeter with advanced design, multiple functions, novel figuration, large display screen and reliable performance. This meter is fully capable to measure voltage and current both AC and DC, resistance, capacitance, inductance, temperature, frequency, forward voltage drop of diode, transistor hFE and continuity test, TTL LOGIC level measurement.
Model UT70A: OPERATING MANUAL 5) Set the Range Selector to a proper position. 6) The measured value shall not exceed the maximum range of each measurement to protect the meter from damage and electric shock to user. 7) Range Selector shall not be switched during measurement to avoid damage to the meter. 8) Cautions shall be taken to prevent electric shock when the measured voltage is higher than 60V in DC or 42Vrms in AC. 9) Identical fuse shall be used when replacing the fuse: 5x20(mm) – F 0.
Model UT70A: OPERATING MANUAL FIGURATION AND ACCESSORIES 1) The Meter Structure(see figure1) 1. 2. 3. 4. 5.
Model UT70A: OPERATING MANUAL 2) Input Terminal of UT70A Input Terminal Description 10A Input terminal for current 0.2A-10A. For short "A" Terminal "mA"Terminal COM Input terminal for voltage, "V/ " resistance, frequency, Terminal diode, continuity, TTL LOGIC. Common terminal for current, "COM"Terminal voltage, resistance, frequency, diode, continuity, TTL LOGIC measurement.
Model UT70A: OPERATING MANUAL ELECTRIC SYMBOL AC (Alternating Current) DC (Direct Current) AC or DC Grounding Double Insulated Deficiency of Built-In Battery Continuity buzzer Diode Fuse Warning.
Model UT70A: OPERATING MANUAL GENERAL INFORMATION l l l l l l l l l l l l l l l Maximum voltage between any terminal and the ground: 1000V 3 1/2 digits large screen displaying size: 53 mm x 62 mm, Max reading 1999. Simultaneous display function and unit icon. Automatic power off after 15 non-operated minutes Automatic polarity, over range "OL" and low battery icon display. Power: one piece of 9V battery (6F22 or equivalent) Sampling rate: approx. 2.5/sec. Backlight: approx. 10 sec./time.
Model UT70A: OPERATING MANUAL SPECIFICATIONS(2) 3.DC Current (DCA) Range Resolution Accuracy Input protection (0.8%+1) F. 0.5A/250V (1.5%+1) (2%+5) F. 10A/250V Remarks: 4. AC Current (ACA) Range Resolution Accuracy (1%+3) Input protection F. 0.5A/250V (1.8%+3) (3%+7) F. 10A/250V . 5. Resistance Range Resolution Accuracy (0.8%+3) (0.
Model UT70A: OPERATING MANUAL SPECIFICATIONS(5) In Fahrenheit (0F) Range -40 0F 1832 0F Resolution Accuracy -40 0F - 32 0F 32 0F - 752 0F (3%+4) (1%+4) 2.
Model UT70A: OPERATING MANUAL OPERATION INSTRUCTION(1) , 14
Model UT70A: OPERATING MANUAL OPERATION INSTRUCTION(2) 1. Introduction of functional buttons 1. 2.
Model UT70A: OPERATING MANUAL OPERATION INSTRUCTION(3) WARNING: Not to measure a Voltage higher than 1000V. A reading might be available but it may result in damage to the internal circuit.
Model UT70A: OPERATING MANUAL OPERATION INSTRUCTION(4) 3.AC Voltage Measurement (ACV)(see figure3) WARNING: Not to measure a Voltage higher than 750V. A reading might be available but it may result in damage to the internal circuit.
Model UT70A: OPERATING MANUAL OPERATION INSTRUCTION(5) 4. Current Measurement (DCA)(see figure4) WARNING: Turn off the circuit power to be tested before linking the meter with the circuit. Measurement of Voltage in this mode is forbidden.
Model UT70A: OPERATING MANUAL OPERATION INSTRUCTION(6) 5.AC Current Measurement (ACA)(see figure5) WARNING: Turn off the circuit power to be tested before linking the meter with the circuit. Measurement of Voltage in this mode is forbidden.
Model UT70A: OPERATING MANUAL OPERATION INSTRUCTION(7) 6.
Model UT70A: OPERATING MANUAL OPERATION INSTRUCTION(8) WARNING: It is not allowed to make a measurement in a live return circuit. Return circuit power shall be cut off and capacitor/s in return circuit shall be discharged (large capacitance value in particular) before measuring. It is forbidden to introduce a voltage signal when a measurement is made. 7.
Model UT70A: OPERATING MANUAL OPERATION INSTRUCTION(9) WARNING: Inductance test shall be stay away from any strong magnetic field to ensure an accurate measurement. 8.
Model UT70A: OPERATING MANUAL OPERATION INSTRUCTION(10) WARNING: It is not allowed to make measurement of capacitance on live circuit. The capacitor to be tested shall be discharged by short-circuiting before test. 9.
Model UT70A: OPERATING MANUAL OPERATION INSTRUCTION(11) 10.Temperature Measurement (0C or 0F)(see figure10) 11.
Model UT70A: OPERATING MANUAL OPERATION INSTRUCTION(12) 12. Diode (or PN node of transistor) Measurement( ) WARNING: No voltage signal shall be introduced into measurement. 13. Continuity Buzzer Test WARNING: Continuity buzzer test cannot be made in live return circuit. Power in live return circuit shall be cut off and capacitor (large capacitance value in particular) shall be discharged before test.
Model UT70A: OPERATING MANUAL OPERATION INSTRUCTION(13) 14.
Model UT70A: OPERATING MANUAL MAINTENANCE WARNING! This digital multimeter is a precise electronic instrument and no alternation shall be made to its circuit. Furthermore, the following points shall be attended: 1) not connect it to any DC voltage higher than 1000 V or AC voltage higher than 750 V. 2) Do not connect the meter directly to any power outlet unless the Function/Range Selector is set on Voltage position. 3) Do not use this meter before battery is properly loaded and the back case is closed.
Model UT70A: OPERATING MANUAL FUSE AND BATTERY replacement 1) Turn OFF the Power, and remove the test leads from terminals 2) Remove all rubber foot and screws from the back case. 3) Separate the back case from the front case. 4) Replace the battery or fuse specified in this manual 5) Rejoin the back case and front case, reinstall all screws and rubber feet.
Model UT70A: OPERATING MANUAL 29
Model UT70A: 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.
