UNI-T UT804 Bench Multimeter
The UNI-T UT804 is a high-performance bench type digital multimeter designed for steady operations and precise measurements. Featuring a 40000-count, 4-3/4 digit display with auto-ranging capabilities, this instrument is built for professional laboratory, industrial, and educational environments. It offers comprehensive measurement functions including AC and DC voltage, AC and DC current, resistance, capacitance, frequency, duty cycle, temperature, and diode or continuity testing.
Equipped with True RMS and AC+DC measurement capabilities, the UT804 ensures accurate readings even on complex waveforms. The intuitive interface includes a tri-display setup with a primary 40000-count screen, dual secondary displays, and a 40-segment analog bar graph for quick trend indications. Advanced features such as data storage for up to 9999 readings, data recall, USB and RS-232 connectivity, and peak hold make it an indispensable tool for detailed electronic analysis. The meter supports both AC power and battery operation, featuring automatic power-off and low battery indication to conserve energy during portable use.
Features
- 40000 counts primary display with dual 4000-count secondary displays
- True RMS for accurate AC and AC+DC voltage and current measurements
- Auto-ranging and manual ranging capabilities
- Data storage up to 9999 readings with recall and PC interface (USB/RS-232)
- 40-segment analog bar graph with fast 10 times/second update rate
- MAX/MIN and Peak Hold recording for capturing transient signals
- Relative mode (REL) for zeroing out test lead resistance or stray capacitance
- 4-20mA loop current percentage readout
- Built-in setup menu for customizing limits, auto power-off, and backlight
- Overload protection and input alarm for safe operation
- Operates via AC power cord or 6 x 1.5V R14 batteries
Specifications
| Feature | Specification |
|---|---|
| DC Voltage | 400mV / 4V / 40V / 400V / 1000V (±0.025% + 5) |
| AC Voltage | 4V / 40V / 400V / 1000V (±0.4% + 30) |
| DC Current | 400µA / 4000µA / 40mA / 400mA / 10A (±0.1% + 15) |
| AC Current | 400µA / 4000µA / 40mA / 400mA / 10A (±0.7% + 15) |
| Resistance | 400Ω / 4kΩ / 40kΩ / 400kΩ / 4MΩ / 40MΩ (±0.3% + 40) |
| Capacitance | 40nF / 400nF / 4µF / 40µF / 400µF / 4mF / 40mF (±1% + 20) |
| Frequency | 40Hz to 400MHz (±0.01% + 8) |
| Duty Cycle | 0% to 100% (±1.0% + 40) |
| Temperature (°C) | -40°C to 1000°C (±1% + 30) |
| Temperature (°F) | -40°F to 1832°F (±1.5% + 50) |
| 4-20mA Loop | 0 to 100% (±1% + 50) |
| Display Count | 40000 (Primary), 4000 (Secondary) |
| Bandwidth | 100kHz |
| Input Impedance (DCV) | Around 4GΩ (400mV Range), Around 10MΩ (Other Ranges) |
| Data Storage | Up to 9999 readings |
| Interfaces | RS-232 / USB |
| Power Supply | AC 220V/50Hz (or 110V/60Hz) or 6 x 1.5V Batteries (R14) |
| Dimensions | 310 x 105 x 240 mm |
| Weight | 2.2kg (Net) / 3kg (with batteries) |
Applications
- Professional electronics laboratory testing and diagnostics
- Industrial 4-20mA process control loop calibration
- Telecommunication and signal level equipment maintenance
- Appliance and portable equipment electrical troubleshooting
- Semiconductor, transistor, and diode junction testing
- AC and DC circuit analysis with True RMS measurements
Package Content
- 1 x UNI-T UT804 Bench Multimeter
- 1 x English Operating Manual
- 1 x AC Power Cord
- 1 x CD-ROM (Software and Installation Guide)
- 6 x 1.5V Batteries (R14)
- 1 x USB Interface Cable
- 1 x RS232C Interface Cable
- 1 x K-Type Point Contact Temperature Probe
- 1 x Alligator Clip
- 4 x Test Clips
- 1 x Pair of Test Leads
