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The UNI-T UT61B+ is a modern, high-performance digital multimeter representing the next generation of the popular UT61 series . Designed for professional electricians, electronics engineers, and serious enthusiasts, this meter combines a high-resolution display, True RMS accuracy, and a robust set of features in a sleek, ergonomic, and highly durable package .
Engineered for the toughest job sites, the UT61B+ boasts a 2-meter drop-proof rating, ensuring it can withstand accidental falls that would destroy lesser meters . Its large, backlit LCD screen with a 6000-count display and high-resolution analog bar graph provides clear, detailed readings in any lighting condition . With a CAT II 1000V / CAT IV 600V safety rating, it offers professional-grade protection for work on a wide range of electrical systems, from low-voltage electronics to primary power supplies .
High-Resolution 6000-Count Display: Large LCD screen with a 6000-count backlit display and a high-resolution analog bar graph for clear, detailed measurements and trend observation .
True RMS Accuracy: Delivers accurate readings on non-linear or distorted AC waveforms, essential for modern electronics and variable frequency drives .
Exceptional Durability: 2-meter drop-proof design ensures reliable operation in demanding work environments .
Wide Measurement Range: Measures DC/AC voltage up to 1000V, DC/AC current up to 10A, resistance up to 60MΩ, and capacitance up to 60mF .
Temperature Measurement: Built-in support for K-type thermocouples (probe required, check accessories) for temperature measurement, expanding its diagnostic capabilities .
Frequency & Duty Cycle: Measures frequency up to 10MHz and duty cycle from 0.1% to 99.9% for advanced signal analysis .
Non-Contact Voltage (NCV) Detection: Safely and conveniently identify live AC circuits with audio and visual alarms .
Comprehensive Testing: Includes diode test, continuity test with acoustic indication, and transistor hFE test .
User-Friendly Interface: Features auto and manual ranging, data hold, relative (REL) mode, and MAX/MIN recording .
Robust Safety: Certified to CAT II 1000V / CAT IV 600V safety standards with full-range overload protection and high-energy fuse protection on current ranges .
Convenient Power: Powered by a standard 9V battery (6F22) for long-lasting, easily replaceable power .
The UNI-T UT61B+ delivers professional-grade accuracy across a wide range of electrical and environmental parameters .
| Item | Quantity |
|---|---|
| UNI-T UT61B+ Digital Multimeter | 1x |
| Test Leads | 1 pair |
| K-Type Temperature Probe | 1x (check with vendor) |
| 9V Battery (6F22) | 1x |
| User Manual | 1x |
| Protective Holster / Carrying Case | 1x |
Use the SEL button to switch between DC and AC measurement .
Connect test leads in parallel to the circuit under test. The input impedance is approximately 10MΩ, minimizing circuit loading .
Set the rotary switch to the appropriate μA, mA, or A position .
Connect the test leads in series with the circuit under test .
High-energy fuses (1A and 10A, 240V) protect the current ranges .
For resistance, connect the test leads across the component. The meter autoranges through 600.0Ω to 60.00MΩ ranges .
For continuity, press SEL to select the continuity test. The buzzer sounds when resistance is less than 50Ω, confirming a complete circuit .
Connect the K-type thermocouple to the meter, observing correct polarity .
Place the probe on the object to measure temperature, with a range of -20°C to 1000°C .
The meter provides audio and visual alarms to indicate the presence of an AC electric field, enhancing safety .
Capacitance: Rotate to the +|| - position and connect leads to a discharged capacitor .
Frequency/Duty Cycle: Rotate to the Hz/% position and connect to the signal source .
hFE: Rotate to the hFE position and insert the transistor into the dedicated socket .
MAX/MIN: Record and display the highest and lowest readings during a measurement period .
REL Mode: Zero out test lead resistance or set a reference value for comparative measurements .
Auto Power Off: Conserves battery life by shutting down after 15 minutes of inactivity. This feature can be disabled .
The UNI-T UT61B+ is an ideal all-in-one tool for:
HVAC/R Technicians: Measuring temperature, testing capacitors, and troubleshooting control boards with frequency analysis.
Industrial & Commercial Electricians: Safe high-voltage measurements up to CAT IV 600V, verifying wiring, and diagnosing motor drives.
Electronics Engineers & Technicians: Precision component testing, frequency analysis for signal generators, transistor matching, and detailed circuit diagnostics.
Automotive Diagnostics: Testing battery voltage, alternator output, sensor frequency, and parasitic drain.
Educational & R&D Labs: A robust and accurate meter for teaching and conducting experiments in electronics and electrical engineering .
The UT61B+ stands out as a modern, rugged, and versatile meter that offers exceptional value.
The UNI-T UT61B+ is a worthy successor to the original UT61B, addressing its limitations with a modern, feature-rich, and highly durable design . Its combination of True RMS accuracy, 6000-count display, robust safety ratings, and 2-meter drop-proof construction makes it an outstanding choice for any professional or serious hobbyist. The inclusion of advanced functions like temperature, capacitance, frequency, and hFE testing ensures it can handle virtually any measurement task with precision and confidence. For a reliable, safe, and versatile meter that can withstand the rigors of daily use, the UT61B+ is an excellent investment
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