Uni-T UT620C+ Digital Micro-Ohmmeter

Uni-T UT620C+ Digital Micro-Ohmmeter

The Uni-T UT620C+ Digital Micro-Ohmmeter is a precision instrument designed to measure very low resistances—from 0.001 mΩ up to 300 kΩ—making it ideal for testing both small components and more complex systems. High resolution down to 1 μΩ and accuracy of ±0.1% FS allow for the detection of even slight changes in resistance, which is crucial for technical diagnostics. The use of the four-wire method minimizes the impact of test leads on the result, and a test current of up to 1 A enables stable measurements under various conditions. Additionally, the device offers storage for up to 500 results, a clear backlit LCD display, and a compact, portable design with battery power.

Wide Measurement Range and Accuracy

The UT620C+ allows operation across a very wide resistance range, which translates to its versatility. The ability to measure from microohms to hundreds of kiloohms means that a single device is sufficient for many applications. High accuracy and resolution enable precise assessment of the condition of wires, connectors, windings, or metal components, reducing the risk of misdiagnosis.

Stable measurements thanks to the four-wire method

The use of the four-wire method directly impacts the quality of results. It eliminates the influence of test lead resistance, which is particularly important at very low values. As a result, measurements are more repeatable and less susceptible to interference, facilitating work in demanding conditions.

Performance and functionality in practice

The device operates with a test current of up to 1 A, ensuring stable and reliable results. A measurement rate of approximately two readings per second ensures smooth operation. The built-in memory for 500 data sets allows results to be saved and analyzed later, which is useful for documenting measurements or service work.

Key Technical Specifications

The UT620C+ is equipped with input protection up to 36 V AC/DC, which enhances safety during measurements. The IP54-rated housing protects the device from dust and splashes, making it better suited for workshop and field conditions.

Clear display and user-friendly operation

The large backlit LCD display ensures good visibility of results regardless of lighting conditions. Simple operation means the device is ready to use without complicated setup, and the automatic shut-off feature after 15 minutes of inactivity helps conserve energy.

Interface and additional information

The device is equipped with a USB Type-C port, which enables communication with a computer and potentially battery charging; however, the exact scope of its functions depends on the standard used and should be confirmed in the manufacturer’s documentation. Additionally, the low battery indicator allows for better control of operating time and helps avoid sudden interruptions in measurements.

 

ManufacturerUni-TModelUT620C+Resistance measurement range0.001 mΩ – 300.0 kΩResolutionup to 1 μΩOpen-circuit voltage≤ 4.2 VMeasurement rateapprox. 2 measurements/sMemoryup to 500 data setsDisplaybacklit segment LCDInterfaceUSB Type-CInput protectionup to 36 V AC/DCProtection ratingIP54Power supply3.7 V / 3200 mAh Li-ion batteryPower consumption≤ 8 WDimensions161 × 117 × 68 mmWeight480 g (with battery)