UNI-T UT151A Operating Manual Download Page 2 | Manualshive

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I. Characteristics---------------------------------------------------------------------------------------- --------------3

II. Technical data------------------------------------------------------------------------------------------------------ 3

III. Operating method ------------------------------------------------------------------------------------------------9

IV. Maintenance of instrument ---------------------------------------------------------------------- ------------15

V. Accessories -------------------------------------------------------------------------------------------------------17

TABLE OF CONTENTS

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Summary of Contents for UT151A

Page 1: ...P N 110401102629 ...

Page 2: ...Item Page I Characteristics 3 II Technical data 3 III Operating method 9 IV Maintenance of instrument 15 V Accessories 17 TABLE OF CONTENTS ...

Page 3: ... broken line The red and black pens should be inserted in the hole which meet the measurement requirement ensure well contact The input signal is not allowed to exceed the limit value to avoid electric shock and damage Changing range switch shift is strictly prohibited during the measurement of voltage and current in order to avoid damaging the instrument SAFETY RULES AND PRECAUTIONS If you want t...

Page 4: ...eve bracket battery excluding pens I CHARACTERISTICS Accuracy a reading digit the guarantee period is 1 year Ambient temperature 23 5 Relative humidity 75 II TECHNICAL DATA 2 1 DC voltage nput impedance 10MÙ for all ranges Overloading protection For 200mV range 250V DC orAC effective value For other ranges 750Vrms or 1000Vp p peak value 2 2 AC voltage Range Resolution Accuracy UT151A UT151B UT151C...

Page 5: ... mm A input end 10A 250V Ö 6 25 mm Maximum input current 10A For current over 5A measuring time shall not exceed 15 seconds Measured voltage drop 200mV for full range Display Mean value sine wave effective value 2 5 Resistance Range Resolution Accuracy UT151A UT151B UT151C UT151D UT151E 1 2 2 1 0 2 1 2 2 200 Ù 2 kÙ 20 kÙ 200 kÙ 2 MÙ 20 MÙ 200 MÙ 0 1 Ù 1 Ù 10 Ù 100 Ù 1 kÙ 10 kÙ 100 kÙ 5 0 reading 1...

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Page 7: ...before operation 1 Press the POWER switch to check 9v battery In case of lower battery voltage level will be shown on the display In this case you need to replace the battery 2 symbol beside the pen hole means that input voltage or current shall not exceed the indicated value so that the internal circuits can be protected from damage 3 Prior to the testing the functional switch shall be placed at ...

Page 8: ...gher voltage but it has a risk of damaging the internal circuits 1 Insert the black pen into the COM hole When the current for which the maximum value is below 200 mA is measured insert the red into mA hole When the current for which the maximum value is 10 A is measured insert the red pen into 10 A hole 2 Place the functional switch at range and connect test pen to the circuit of load to be teste...

Page 9: ...Although protection to the capacitance shift is set by the instrument testing shall still be carried out after capacitor discharge to avoid damage to the instrument or causing measuring error 2 In measuring capacitance insert the capacitor into the capacitance testing seat 3 In measuring large capacitance it will take a certain time period to get stable reading 4 Unit 1pF 10 µF 1nF 10 µF 6 3 3 7 F...

Page 10: ...e than 1000V or AC effective voltage higher than 750V 2 Do not connect to the voltage source when the function switch is at Current Shift Ù and 3 Do not use this instrument when the battery is not well connected or its back cover is not tightly installed 4 You can only change the battery or fuse when the test pens are removed and power is cut off Battery installation or replacement This product ad...

Page 11: ...1 Operating Guide One book 2 Pen One pair 3 Cross point type thin line K thermocouple sensor One suit only for UT151C and UT151E V ACCESSORIES Content of this manual is subject to changes without notice ...

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