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Help CenterTrue RMS Digital Multimeters UNI-T UT139B AC DC Voltage and Current Auto Range Handheld Multimeter
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True RMS Digital Multimeters UNI-T UT139B AC DC Voltage and Current Auto Range Handheld multimeter
Introduction
Key Features
UT139 Series digital multimeters are newly designed to offer users better performance and higher safety rating. Totally over-load protection and unique structural design make it new type of multimeter with high performance/ price ratio and a best choice for electricians used in electrical maintenance and repairing.
1. True RMS for the whole series;
2. Measure signals with varied frequency (VFC);
3. Measure large capacitance up to 100mF;
4. Optional AC/DC 60A current clamps in different models to measure current up to 60A(1mv=1A);
5. NCV designed for the whole series, a necessity for electricians;
6. AA1.5V*2(5#) battery, easy for users to purchase and replace;
7. Soft rubber holster is easy to stand 2m drop;
8. Optional magnetic hanging strap offered to facilitate tests in special location;
9. Fast to replace fuse, just by opening battery cover;
10. Reliable with use of internal 2PCS fuses with high-breaking capacity;
11. Protection against 600V input/1 minute from misconnection;
12. Safety Rating: CAT III 600V.
Applications
An ideal tool for equipment testing, maintenance and repair widely needed in electronics, electric power, schools, metallurgy, communications, manufacturing, petroleum, national defense, chemical industry, etc.
Specification
| Specifications | Range | Best Accuracy | ||
| Model | UT139A | UT139B | UT139C | |
| DC Voltage (V) | 20mV/200mV/2V/20V/200V/600V | ±(0.5%+2) | ||
| 40mV/400mV/4V/40V/400V/600V | ±(0.5%+2) | |||
| 60mV/600mV/6V/60V/600V | ±(0.5%+2) | |||
| AC Voltage (V) | 20mV/200mV/2V/20V/200V/600V | ±(1%+3) | ||
| 40mV/400mV/4V/40V/400V/600V | ±(0.8%+3) | |||
| 60mV/600mV/6V/60V/600V | ±(0.8%+3) | |||
| DC Current (A) | 200μA/2000μA/20mA/200mA/2A/10A | ± (0.7%+2) | ||
| 400μA/4000μA/40mA/400mA/4A/10A | ± (0.7%+2) | |||
| 600μA/6000μA/60mA/600mA/6A/10A | ± (0.7%+2) | |||
| AC Current (A) | 200μA/2000μA/20mA/200mA/2A/10A | ±(1%+3) | ||
| 400μA/4000μA/40mA/400mA/4A/10A | ±(1%+3) | |||
| 600μA/6000μA/60mA/600mA/6A/10A | ±(1%+3) | |||
| Resistance (Ω) | 200Ω/2kΩ/20kΩ/200kΩ/2MΩ/20MΩ | ±(1.0%+2) | ||
| 400Ω/4kΩ/40kΩ/400kΩ/4MΩ/40MΩ | ±(0.8%+2) | |||
| 600Ω/6kΩ/60kΩ/600kΩ/6MΩ/60MΩ | ±(0.8%+2) | |||
| Capacitance (F) | 9.999nF/99.99nF/999.9nF/9.999μF/99.99μF/ 999.9μF/9.999mF/99.99mF |
±(4.0%+5) | ±(4.0%+5) | |
| Frequency (Hz) | 10Hz-10MHz | ±(0.1%+4) | ±(0.1%+4) | |
| Temperature (°C) | -40 °C~1000°C | ±(1.0%+3) | ||
| Temperature (°F) | -40°F~1832°F | ±(1.5%+5) | ||
| Features | ||||
| Display Count | 2000 | 4000 | 6000 | |
| Auto Range | √ | √ | √ | |
| Manual Range | √ | √ | √ | |
| True RMS | √ | √ | √ | |
| Bandwidth (Hz) | 45Hz - 400Hz | 45Hz - 1kHz | 45Hz - 1kHz | |
| V.F.C | √ | √ | √ | |
| Duty Cycle | 0.1% -99.9% | √ | √ | |
| Diode | Around 2V | Around 3V | Around 3V | |
| NCV | √ | √ | √ | |
| Battery Test | 1.5V / 9V | √ | ||
| Auto Power Off | Around 15 Minutes | √ | √ | √ |
| Continuity Buzzer | √ | √ | √ | |
| Low Battery Indication | ≤2.5V | √ | √ | √ |
| Data Hold | √ | √ | √ | |
| Relative Mode | √ | √ | √ | |
| MAX/MIN | √ | √ | √ | |
| LCD Backlight | √ | √ | √ | |
| Input Protection | 600Vrms | √ | √ | √ |
| Input Impedance for DCV | 1GΩ Max | √ | √ | √ |
| General Characteristics | ||||
| Power | AA1.5*2 (not included) | |||
| LCD Size | 58mm × 36 mm | |||
| Product Colour | Red and Grey | |||
| Product Net Weight | 370g | |||
| Product Size | 175mm x 81mm x 48.5 mm | |||
| Standard Accessories | UT139A/B-Battery, Test Leads;UT139C-Battery, Test Leads, Temperature Probe | |||
| Standard Individual Packing | Gift Box, English Manual | |||
| Standard Quantity Per Carton | 40 PCs | |||
| Standard Carton Measurement | 645mm×450mm×340mm (0.098CBM Per Standar Carton) | |||
| Standard Carton Cross Weight | 25.5 Kg | |||
| Optional Accessories* | ||||
| UT139C-Current Sensor AC/DC40A | ||||
Accessory
1. Battery,(not included)
2. Test Leads
(Julie Zhou)
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