The UNI-T UT890D+ is part of the new UT890 series of 6000-count, manual-range True RMS digital multimeters, designed to offer users a more comprehensive range of functions and thoughtful alert services. It features a new automatic fuse blow alarm and overvoltage/overcurrent warnings, specifically designed to notify users of measurement overload and fuse status. This function also helps verify if a fuse has been correctly installed. The UT890D+ includes both low-voltage frequency measurement (below 30V, 10Hz~10MHz) and high-voltage frequency measurement (5V~750V, 10Hz~10kHz) to better handle power frequency voltage measurements. Its exclusive LIVE single-lead live wire detection function allows users to quickly distinguish between live and neutral wires with just one test lead. (Note: High-precision temperature measurement is available on UT890C, and this model, UT890D+, focuses on live wire detection.)
Key Features of UT890 Series Products
- Fuse blow alarm indication
- True RMS voltage and current measurement (up to 1000V AC/DC, 20A AC/DC)
- NCV (Non-Contact Voltage) detection, continuity buzzer, and light alarm
- Fast charging measurement for large capacitors up to 100mF
- AC/DC current mode memory function
- Single-lead live wire detection (UT890D+)
- Low-voltage and high-voltage frequency measurement for power frequency voltage
Overview of UT890D+ Digital Multimeter
The UT890D+ is a professional-grade digital multimeter that stands out with its robust feature set and safety-focused design. Its True RMS capability ensures accurate readings for non-sinusoidal waveforms, a common occurrence in modern electrical systems. The added fuse blow alarm and overvoltage/overcurrent warnings provide an extra layer of safety and convenience, guiding users to prevent damage to the device and ensure correct operation.
Enhanced Frequency Measurement Capabilities
Unlike many standard multimeters, the UT890D+ offers specialized frequency measurement ranges. It can measure low-voltage frequencies from 10Hz to 10MHz (for voltages below 30V) and high-voltage frequencies from 10Hz to 10kHz (for voltages between 5V and 750V). This dual capability makes it particularly effective for analyzing power frequency voltages, which is crucial for troubleshooting industrial and domestic power systems.
LIVE Single-Lead Live Wire Detection
A unique and highly practical feature of the UT890D+ is its LIVE single-lead live wire detection. This function allows users to quickly and safely identify live wires without needing a second test lead or contact. This significantly speeds up troubleshooting and improves safety when working with electrical installations.
Robust Safety and User-Friendly Design
The UT890D+ is built with user safety and convenience in mind. It includes audible and visual alarms for NCV and continuity tests, a clear 63x37mm LCD with backlight for easy reading in various lighting conditions, and auto power-off to conserve battery life. Its safety rating of CAT II 1000V / CAT III 600V ensures it can handle a wide range of electrical applications safely.
Technical Specifications
| Model | UT890D+ | |
| Basic Functions | Parameters | Accuracy |
| DC Voltage | 600mV/6V/60V/600V/1000V | ±(0.5%+2) |
| AC Voltage | 6V/60V/600V/750V | ±(0.8%+3) |
| DC Current | 60uA/600uA/6mA/60mA/600mA/20A | ±(0.8%+8) |
| AC Current | 60uA/600uA/6mA/60mA/600mA/20A | ±(1%+12) |
| Resistance | 600Ω/6kΩ/60kΩ/600kΩ/6MΩ/60MΩ | ±(0.8%+3) |
| Capacitance | 9.999nF/99.99nF/999.9nF/9.999μF/99.99μF/999.9μF/9.999mF/99.99mF | ±(3%+10) |
| Frequency | 9.999Hz～9.999MHz | ±(1.0%+5) |
| Temperature | NA | NA |
| Special Functions | ||
| Display Count | 6000 | |
| True RMS | Yes | |
| Continuity Test | Yes | |
| Diode Test | Yes | |
| Transistor Test | Yes | |
| Audible/Visual Alarm | Yes | |
| NCV | Yes | |
| Live Wire Test | Yes | |
| LCD Size | 63x37mm | |
| Fuse Blow Alarm | Yes | |
| Backlight Display | Yes | |
| Gear Memory | Yes | |
| Max/Min Measurement | Yes | |
| Relative Value Measurement | Yes | |
| Low Voltage Display | Yes | |
| Auto Power Off | Yes | |
| Power Supply | AAA 1.5V x 2 | |
| Safety Rating | CAT II 1000V / CAT III 600V | |