P/N:110401109614X UT 61+ Series 1000V True RMS Digital Multimeter User Manual
Preface Thank you for purchasing this brand new product. In order to use this product safely and correctly, please read this manual thoroughly, especially the safety notes. After reading this manual, it is recommended to keep the manual at an easily accessible place, preferably close to the device, for future reference. Limited Warranty and Liability Uni-Trend guarantees that the product is free from any defect in material and workmanship within one year from the purchase date.
I. Overview Table of Contents I. Overview -------------------------------------------------------------4 II. Accessories ----------------------------------------------------------4 The UT61B+/UT61D+/UT61E+ is a handheld true RMS digital multimeter with high reliability and security (UT61B+/UT61D+: 6000 counts; UT61E+: 22000 counts).
III. Safety Instructions The meter is designed and manufactured according to IEC61010-1 safety standard, and conforms to CAT III 1000V, CAT IV 600V, and pollution degree 2. If the meter is used in a manner not specified by the manufacturer, the protection provided by the meter may be impaired. 1. Before use, please check if there is any item which is damaged or behaving abnormally. If any abnormal item (such as bare test lead, damaged meter casing, broken LCD, etc.) is found, please do not use the meter. 2.
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 VI.
VII. Function Dial and Function Buttons 1.
VIII. Operating Instructions Please check the internal batteries first. If “ ” is displayed, replace the batteries in time. Please also pay attention to the warning sign “ ” beside the input terminals, which indicates that the measured voltage or current must not exceed the values marked on the meter. Before each use, verify meter operation by measuring a known voltage. The input impedance of the meter is about 10MΩ. This load effect may cause measurement errors in high-impedance circuits.
3. AC/DC Millivolt Voltage Measurement (Picture 6) The input impedance of the DC mV range is infinite (about 1GΩ), and it does not attenuate when measuring weak signals, so the measurement accuracy is high. When the test leads are open, there may be a value on the screen, but this is normal and will not affect the measuring result. Frequency measurement at 60mV range (AC voltage) is for reference only (UT61B+/UT61D+). 4.
5. Resistance Measurement (Picture 8) 6. Continuity Test (Picture 9) Picture 8 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) Touch the probes to the test points in the circuit. 4) Read the resistance value on the display. Caution: Use caution when working with voltages above AC 30Vrms, 42Vpeak or DC 60V. Such voltages pose a shock hazard.
7. Diode Test (Picture 10) Picture 10 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 SELECT button to switch to diode test if required. 4) Connect the red probe with the diode anode, and black probe with the diode cathode. 5) Read the forward bias value on the display. 6) Measured value <0.12V: The diode may be damaged; the red indicator light is on. Measured value within 0.
9. Transistor Magnification (hFE) Measu rement (UT61E+, Picture 12) 10. Frequency/Duty Ratio Measurement (Picture 13) N PN Picture 12 1) Turn the function dial to the hFE position. 2) Insert the adapter socket into the input terminals. 3) Insert the three pins of the transistor under test into the corresponding holes of the adapter socket. 4) Read the magnification of the measured transistor. Picture 13 1) Insert the red test lead into the or terminal, and black test lead into the COM terminal.
11. Temperature Measurement (UT61D+, Picture 14) 12. AC/DC Current Measurement (Picture 15) AC/DC RL RL Digital Multimeter-HVAC USB A FUSED 250V max MAX 10sec EACH 15min Picture 14 1) Turn the function dial to the °C°F position. 2) Insert the K-type thermocouple into the and COM terminals, observing correct polarity. 3) Bring the temperature sensing end of the thermocouple close to the object surface under test. 4) Read the Celsius temperature value on the display after it gets steady.
. Non-Contact Voltage (NCV) Detection (Picture 16) 14. USB Data Transmission (Picture 17a, Picture 17b) Picture 17b Picture 17a FUSED 250V max MAX 10sec EACH 15min Picture 16 1) Turn the function dial to the NCV position. 2) Bring the NCV detector (top left corner of the meter) close to the wire (AC) under test. 3) If the voltage of the wire is ≥50Vrms (frequency: 50Hz/60Hz), the red indicator light will be on and the buzzer will beep. If no voltage is detected, the LCD will display “EF”.
IX. Specifications 1. General Specifications 1) Max voltage between the input terminal and COM terminal: Please refer to the description of input protection voltage for each range. 2) mA/μA input terminal protection: 1A 240V fast-acting fuse, Φ6x25mm 3) A input terminal protection: 10A 240V fast-acting fuse, Φ6x25mm 4) Max display: 6000 (UT61B+/UT61D+), 22000 (UT61E+) Analog bar: 31 segments (UT61B+/UT61D+), 46 segments (UT61E+) (conversion rate: 30 times/s).
2) AC Voltage Range Resolution UT61E+ Frequency response 40Hz~1kHz 1kHz~10kHz 40Hz~1kHz 1kHz~10kHz 40Hz~100Hz (LPF) 220.00mV 0.01mV 2.2000V 0.1mV 22.000V 1mV 40Hz~1kHz 1kHz~10kHz 40Hz~100Hz (LPF) 220.00V 10mV 40Hz~1kHz 1kHz~10kHz 40Hz~100Hz (LPF) 1000.0V 0.1V 40Hz~1kHz 1kHz~10kHz 40Hz~100Hz (LPF) Range 60.00mV 600.0mV 6.000V 60.00V 600.0V 1000V LoZ ACV 600.0V (UT61D+) LoZ ACV 1000V (UT61D+) UT61B+/UT61D+ Resolution 0.01mV 0.1mV 0.001V 0.01V 0.1V 1V 0.1V 1V Accuracy ± (1.0%+10) ± (1.
5) Continuity and Diode 4) Resistance UT61B+/UT61D+/UT61E+ UT61E+ Range Resolution Accuracy 220.00Ω 0.01Ω 2.2000kΩ 0.1Ω 22.000kΩ 1Ω 220.00kΩ 10Ω 2.2000MΩ 100Ω ± (0.8+10) 22.000MΩ 1kΩ ± (1.5%+10) 220.00MΩ 10kΩ ± (3.0%+50) ± (0.5+10) Resolution Accuracy 600.0Ω 0.1Ω ± (1.2%+2) 6.000kΩ 1Ω 60.00kΩ 10Ω For normal diodes, the buzzer will beep once. For short circuit, the buzzer will beep for a long time. Overload protection: 1000V When the forward voltage drop is within 0.
9) DC Current UT61B+/UT61D+ Range Resolution 60.00nF 10pF 600.0nF 100pF 6.000μF 1nF 60.00μF 10nF 600.0μF 100nF 6.000mF 1μF 60.00mF 10μF Accuracy ± (3%+5) 8) Temperature ± (1.0%+3°C) 0~300°C 0.1°C~1°C 572~1832°F 220.00μA 0.01μA 2200.0μA 0.1μA 22.000mA 1μA 220.00mA 10μA 20.000A 1mA Accuracy ± (0.5%+10) ± (1.2%+50) UT61B+/UT61D+ Range Resolution 600.0μA 0.1μA 6000μA 1μA 60.00mA 10μA 600.0mA 0.1mA 6.000A 10.00A (UT61B+) 10mA 20.00A (UT61D+) 10mA Accuracy ± (1.
10) AC Current UT61E+ Range Resolution 220μA 2200μA 22mA 220mA 20A 0.01μA 0.1μA 1μA 10μA 1mA Frequency response Accuracy 40Hz~1kHz ± (0.8%+10) 1kHz~10kHz ± (3%+50) 40Hz~1kHz ± (0.8%+10) 1kHz~10kHz ± (3%+50) 40Hz~1kHz ± (1.2%+10) 1kHz~10kHz ± (3%+50) 40Hz~1kHz ± (1.2%+10) 1kHz~10kHz ± (3%+50) 40Hz~1kHz ± (1.2%+10) 1kHz~10kHz ± (3%+50) 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 The AC crest factor can be ≤2.
12) Indicator Light Function NCV Continuity Diode AC/DC voltage Current Internal temperature during AC/DC current measurement Description Status Off <36V On, red 50V~1000V (the red indicator light flashes from slow to fast) Off OL On, red No continuity (≥70Ω) On, green Continuity (<50Ω) Off >2V On, red Breakdown (<0.12V) On, green Conduction (0.
