Battery Tester UNI-T UT677A
Overview
Description
UNI-T UT677A is a battery internal resistance tester used to measure the internal resistance, voltage, and temperature of rechargeable batteries such as lead-acid batteries and lithium batteries to judge the health status of the battery.
It can also be used as an instrument to measure the ESR parameters of electrolytic capacitors. UT677A uses the AC 4-terminal test method to measure the internal resistance of the battery, which can measure the correct measurement value without being affected by the contact resistance between the test lead, the terminal, and the battery electrode.
The whole machine is high-grade and beautiful, with a wide range, high resolution, convenient operation, convenient carrying, accurate, reliable, stable performance, and strong anti-interference ability. It is an indispensable instrument for battery production, battery installation, equipment production, equipment maintenance, and other scenarios.
Features
- Internal resistance test: 0.000 mΩ~3.100 Ω.
- Voltage test: 0.000 V~±71.00 V.
- Temperature test: -10.0°C~60.0°C.
- PC software supported.
- Fast response: ≤200 ms.
- Measurement result judgment function.
- 5000 pieces of data storage & rechargeable lithium battery.
- Bluetooth APP (Android) supported.
Technical Specifications
| Measuring Functions | Range/Accuracy | Resolution |
|---|---|---|
| Battery Internal Resistance | 0.000 mΩ~3 mΩ / ±1% fs. ±20 dgt | 1 µΩ |
| 3.000 mΩ~30 mΩ / ±0.5% fs. ±15 dgt. | 10 µΩ | |
| 3.000 mΩ~300 mΩ / ±0.5% fs. ±15 dgt. | 100 µΩ | |
| 300 mΩ~3 Ω /±0.5% fs. ±15 dgt. | 100 mΩ | |
| Battery Voltage | 0.000 V~±7 V/±0.2% fs. ±10 dgt. | 1 mV |
| 7 V~±71.00 V/±0.2% fs. ±10 dgt. | ||
| Temperature | -10.0°C~60.0°C (single range)/ ±1.0°C | 0.1°C |
| Temperature / Humidity | 23°C ± 5°C, <75% RH | |
| General Specifications | ||
| Measuring Method | 1. Internal resistance measurement: 1 kHz AC 4-terminal test method, open-circuit terminal voltage 3 V max 2. Measuring current: 2.0 mA~200 mA (different measuring currents in different ranges) 3. Temperature measurement: NTC temperature sensor (10 kΩ at 26°C) 4. A/D conversion method: successive approximation type 5. Display update frequency: 5 times/second |
|
| Display | 3.5-inch, 16-bit, true color, 320×240 | |
| Response Time | 200 ms | |
| Measuring Time | around 2 sec | |
| USB Interface | read real-time measurement values, read historical measurement records | |
| Bluetooth App | yes | |
| Data Hold and Storage | manual / automatic hold and storage; up to 5000 set measurement data storage | |
| Measurement Estimating Function | PASS, WARNING, FAIL judgment thresholds can be pres | |
| Power | DC 3.7V lithium battery, 5-bar display of power, reminding to charge in time | |
| Power Consumption | 300 mA min/500 mA max | |
| Automatic Shut-down | around 15 minutes | |
| Weight | 480 g (including battery) | |
| Dimensions | 190 mm × 121 mm × 51 mm | |
| Working Temperature and Humidity | -10°C～40°C; below 80% RH | |
| Storage Temperature and Humidity | -20°C～60°C; below 70% RH | |
| Insulation Resistance | above 20 MΩ (500 V between circuit and case) | |
| Puncture Test | AC 3700 V/rms (between circuit and case) | |
| External Magnetic Field | <40 A/m | |
| External Electric Field | <1 V/m | |
| Suitable for Safety Regulations | IEC 61010 | |
User Manual
Download UNI-T UT677A user manual.
Package Contents
- Battery Tester UNI-T UT677A — 1 pc.
- Test Leads — 1 set
- USB Cable — 1 pc.
- Power Adapter — 1 pc.
- User Manual — 1 pc.
