UNI-T UT 61+ Series User Manual Download

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V. External Structure (Picture 1)

1. NCV detector
2. Indicator light
3. LCD display
4. Function buttons
5. Function dial
6. Input terminals
7. USB (Bluetooth) access port
8. Test lead slots
9. Nut for external holder
10.Battery compartment fixing screw
11.Tilt stand

Picture 1

VI. LCD Display (Picture 2, Picture 3)

Description

Measured voltage is >30V (AC or DC)

Data hold

Negative reading

AC/DC measurement

Low battery indication

Auto range

Diode test

Continuity test

Relative value measurement

Resistance units: ohm, kilohm, megaohm

Voltage units: millivolt, volt

Current units: microampere, milliampere, ampere

Capacitance units: nanofarad, microfarad, millifarad

Frequency, duty ratio

Data transmission

Transistor magnification (UT61E+)

Non-contact voltage detection

Peak measurement (UT61D+/UT61E+)

Maximum/Minimum measurement

Celsius/Fahrenheit (UT61D+)

Low impedance measurement (UT61D+)

Transistor magnification measurement (UT61E+)

Auto power off

True RMS

Symbol

AC/DC

, kΩ, MΩ

mV, V

μA, mA, A

nF, μF, mF

Hz, %

NCV

P-MAX/P-MIN

MAX/MIN

°C/°F

LoZ

hFE

TRMS

Picture 2 UT61B+/UT61D+ Picture 3 UT61E+

FUSED

250V max

MAX 10sec

EACH 15min

Summary of Contents for UT 61+ Series

Page 1: ...P N 110401109614X 1000V True RMS Digital Multimeter User Manual UT61 Series ...

Page 2: ...ni Trend guarantees that the product is free from any defect in material and workmanship within one year from the purchase date This warranty does not apply to damage caused by accident negligence misuse modification contamination or mishandling The dealer shall not be entitled to give any other warranty on behalf of Uni Trend If you need warranty service within the warranty period please contact ...

Page 3: ...al temperature alarm low battery indication backlight auto power off and NCV functions the meter is an ideal measuring tool for many application fields Open the package box and take out the meter Please double check whether the following items are missing or damaged If any of the above is missing or damaged please contact your supplier immediately I Overview II Accessories I Overview 4 II Accessor...

Page 4: ...rent marked on the meter between the terminals or between any terminal and earth ground 8 Place the function dial in the correct position before measurement 9 Before measuring resistance diode continuity or capacitance switch off the power supply of the circuit and fully discharge all capacitors 10 Before measuring current make sure the fuses are intact 11 Do not use or store the meter in high tem...

Page 5: ...nuity test Relative value measurement Resistance units ohm kilohm megaohm Voltage units millivolt volt Current units microampere milliampere ampere Capacitance units nanofarad microfarad millifarad Frequency duty ratio Data transmission Transistor magnification UT61E Non contact voltage detection Peak measurement UT61D UT61E Maximum Minimum measurement Celsius Fahrenheit UT61D Low impedance measur...

Page 6: ...ment Frequency and duty ratio measurement Non contact voltage detection Short press Press a button for less than 2s Long press Press a button for more than 2s 1 Button Short press to switch between functions in each compound function position 2 Button Short press to enter the manual range mode and change the range Long press to exit the manual range mode 3 Button Short press to switch between freq...

Page 7: ...er test 2 DC Voltage Measurement Picture 5 DC Voltage Measurement 1 Insert the red test lead into the or terminal and black test lead into the COM terminal 2 Turn the function dial to the or position 3 Short press the button to switch to DC voltage measurement if SELECT required 4 Connect the test leads with the measured load or power supply in parallel 5 Read the voltage value on the display if t...

Page 8: ...e ignored 0 1 4 LoZ low impedance ACV Measurement UT61D Picture 7 1 COM terminal Insert the red test lead into the terminal and black test lead into the 2 Turn the function dial to the position 3 Connect the test leads with the measured load or power supply in parallel 4 Read the voltage value on the display 5 Short press the button to display the frequency duty ratio of the measured voltage Cauti...

Page 9: ...t and use the relative value measurement REL mode leads If the resistance is not less than 0 5Ω when the test leads are short circuited please check if the test leads are loose or abnormal When measuring high resistance it is normal to take a few seconds to stabilize the reading 6 Continuity Test Picture 9 1 Insert the red test lead into the or terminal and black test lead into the COM terminal 2 ...

Page 10: ...the power supply of the circuit and fully discharge all capacitors 8 Capacitance Measurement Picture 11 1 Insert the red test lead into the or terminal and black test lead into the COM terminal 2 Turn the function dial to the or position 3 Short press the button to switch to capacitance measurement SELECT 4 Touch the probes to the capacitor pins 5 Read the capacitance value on the display after it...

Page 11: ...ion of the measured transistor 10 Frequency Duty Ratio Measurement Picture 13 1 Insert the red test lead into the or terminal and black test lead into the COM terminal 2 Turn the function dial to the position 3 Short press the button to switch to frequency duty ratio measurement required if 4 Read the frequency duty ratio value on the display Caution Use caution when working with voltages above AC...

Page 12: ... meter with the circuit in series before measuring the current If the range of the measured current is unknown select the maximum range and then accordingly reduce There are fuses inside mA μA and A input terminals Do not connect the test leads with any circuit in parallel When the measured current is 5A each measurement time should be 10s and the rest interval should be 15 minutes When the temper...

Page 13: ...17a 2 Insert the USB communication module into the USB access port of the meter and the LCD will display Picture 17b 3 If USB data transmission is not needed during measurement long press the button or pull out the USB module to disable data transmission and will disappear 4 To recover this function long press the button or insert the USB module 5 The USB communication software can be downloaded f...

Page 14: ...1 CAT III 1000V CAT IV 600V 19 Pollution degree 2 20 Information of usage Indoor and outdoor 2 Electrical Specifications Accuracy a of reading b digits 1 year warranty Ambient temperature 23 C 5 C 73 4 F 9 F Relative humidity 75 Caution To ensure measurement accuracy the operating temperature should be within 18 C 28 C and the fluctuation range should be within 1 C When the temperature is 18 C or ...

Page 15: ...0 counts and can only be 1 at 22000 counts The additional error should be added according to the crest factor of a non sinusoidal wave as follows UT61E a Add 4 when crest factor is 1 2 b Add 5 when crest factor is 2 2 5 c Add 7 when crest factor is 2 5 3 Frequency measurement range 40Hz 500Hz UT61B 40Hz 1kHz UT61D 40Hz 10kHz UT61E input amplitude 10 of voltage range Duty ratio is for reference onl...

Page 16: ...l connected circuit Resistance 50Ω audio visual alarm Open circuit voltage About 3V For normal diodes the buzzer will beep once For short circuit the buzzer will beep for a long time Resolution 0 1Ω 0 001V Range Overload protection 1000V When the forward voltage drop is within 0 12V 2V the buzzer will beep once When the forward voltage drop is 0 12V the buzzer will beep for a long time 6 Transisto...

Page 17: ...ut 20s 8 Temperature Range 40 0 C 0 300 C 300 1000 C 40 32 F 32 572 F 572 1832 F 40 1000 C 40 1832 F Accuracy 1 0 3 C 1 0 2 C 1 0 3 C 1 0 6 F 1 0 4 F 1 0 6 F Resolution 0 1 C 1 C 0 2 F 2 F The measured temperature should be less than 230 C 446 F 9 DC Current UT61E Accuracy Range 220 00μA 2200 0μA 22 000mA 220 00mA 20 000A Resolution 0 01μA 0 1μA 1μA 10μA 1mA 0 5 10 1 2 50 UT61B UT61D Accuracy Rang...

Page 18: ... Add 4 when crest factor is 1 2 b Add 5 when crest factor is 2 2 5 c Add 7 when crest factor is 2 5 3 The AC crest factor can be 2 0 at 10000 counts and can only be 1 at 22000 counts The additional error should be added according to the crest factor of a non sinusoidal wave as follows UT61E a Add 4 when crest factor is 1 2 b Add 5 when crest factor is 2 2 5 c Add 7 when crest factor is 2 5 3 Frequ...

Page 19: ...inal When is displayed please replace the batteries in time to ensure measurement accuracy Replacement steps 1 Turn the function dial to the OFF position and remove the test leads 2 Unscrew and remove the battery cover to replace the batteries and fuses Warning Before opening the rear cover or battery cover of the meter switch off the power supply and remove the test leads 1 Clean the meter casing...

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