Battery Tester UNI-T UT3550
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UNI-T UT355 is an entirely automated and real-time detection handheld battery tester made with a high-performance 32-bit ARM microprocessor. This instrument can test resistance from 0.001mΩ to 30.00Ω and DC voltage from 0.0001V to 100.00V.
It features a built-in USB-Type-C interface, allowing remote control, data collection, and analysis through data collection software. The UT3550 is also compatible with SCPI (Standard Command for Programmable Instrument) for remote control and data collection.
The AC resistance testing principle can be applied to the internal resistance testing of almost all batteries, including lithium batteries, hydrogen fuel batteries, lead-acid batteries, button batteries, and others. The design allows direct online measurement of UPS without sacrificing accuracy and stability. With an IP65 rating for dustproof and waterproof capabilities, it can provide accurate measurements even in dusty or splashing industrial environments.
Features
- High measurement accuracy (resistance in the range of 0.001 mΩ to 30.00 Ω / voltage from 0.0001 V to 100.000 V).
- Sorting function in three comparison modes: direct reading value, percentage, and absolute value for quick battery screening.
- Timing test and save data function, allowing the setting of the interval time to automatically record measurement data.
- Up to 500 sets of data can be saved.
- Exportable CSV format documents to a USB flash disk for convenient data analysis.
- Standard interfaces: Type-C (host computer control), USB (save data/screenshot), charging interface.
- The instrument supports the SCPI protocol for remote control and data acquisition.
- Top secondary display with lanyard/shoulder strap to accommodate various test occasions.
- Supports remote control, allowing PC setup, viewing, and analysis of data.
Technical Specifications
| Function | Range | Resolution | Accuracy | Measuring Current | Description |
|---|---|---|---|---|---|
| Resistance | 3 mΩ | 1 μΩ | ±0.5% rdg ±5 dgt | 150 mA | measuring current frequency： 1 kHz±30 Hz |
| 30 mΩ | 10 μΩ | ||||
| 300 mΩ | 100 μΩ | 15 mA | |||
| 3 Ω | 1 mΩ | 1,.5 mA | |||
| 30 Ω | 10 mΩ | 150 μA | |||
| Voltage | 10 V | 100 μV | ±0.05% rdg ±5 dgt | / | |
| 100 V | 1 mV | ||||
| Display | 3.5-inch LCD +0.96-inch OLED on the top | ||||
| Range Mode | Auto and Manual (resistance and voltage) | ||||
| Calibration | Short circuit full range to zeroed | ||||
| Testing Speed | 1 times/s（manual range） | ||||
| Beep | OFF, OK, NG | ||||
| Sorting Function | It has three output situations: exceed resistance and voltage upper limit/ exceed resistance and voltage low limit and conform Sorting result has two output situations: PASS and FAI |
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| Comparison Mode | Absolute deviation (ABS), relative deviation (PER), direct-reading (SEQ) | ||||
| Other Functions | Lock keypad, U disk storage, keypad tone, Chines/English language, screenshot | ||||
| Test Terminal | Four-terminal test method | ||||
| Trigger | Internal, manual and remote | ||||
| Storage | the maximum storage is 500 groups, support USB to copy data | ||||
| Interfaces | Type-C interface (communication), USB interface (storage), charging interface | ||||
| Upper-computer Software | SCPI | ||||
| Charging Time | <5 hours | ||||
| Operating Time | about 5 hours (at 20% display brightness) | ||||
| Power | 5 VA max. | ||||
| Power Supply | 7.4 V, 2000 mAh rechargeable lithium battery or 9 V DC, 2 A power adapter | ||||
| Preheating Time | At least 15 minutes | ||||
| Temperature/Humidity Index | 18 °C ~ 28 °C, <65% RH | ||||
| Operating Temperature/Humidity | 0 °C~40 °C, 10~80% RH | ||||
| Storage Temperature/Humidity | -20 °C~60 °C, 10~90% RH | ||||
| Temperature Index | Over 28 °C，less 18 °C，each degree plus 0.1* the specified precision | ||||
| Accuracy Guarantee Time | 12 months | ||||
| Operating Altitude | ≤2000 m | ||||
User Manual
Download UNI-T UT355 user manual.
Package Contents
- Battery Tester UNI-T UT3550 — 1 pc.
- Power Adapter — 1 pc.
- Soft Carrying Case — 1 pc.
- Shoulder Strap — 1 pc.
- USB Communication Cable Type C — 1 pc.
- Magnetic Strap — 1 pc.
- Kelvin Test Clip — 1 set
