OVERVIEW
The RDB-ⅡHX Portable Transformer Turn Ratio Tester is a compact, handheld instrument designed for easy operation and convenient portability. It is primarily used for transformer turn ratio and vector group measurements, as well as PT and CT ratio and polarity testing, delivering fast testing speed and high measurement accuracy.
PRODUCT FEATURES
1. The power supply method is flexible. Supports lithium battery power supply and adaptive 220V AC power supply. After one charge, it can continuously complete hundreds of transformer turn ratio and grouptests, with simple and convenient operation.
2. The instrument has automatic measurement function, which can accurately complete transformation turn ratio and group testing without knowing the HV and LV connection method.
3. Widely applied in various fields. On the basis of testing conventional transformers, Z-type transformers, and PT samples, it can also be used for CT turn ratio and polarity testing.
4. Wide range and high accuracy, with a variable ratio measurement range of up to 10000. The testing accuracy can still guarantee 0.3% even when the turn ratio is 10000.
5. The protection function is complete, with reverse connection protection, output short circuit protection, etc.
6. Equipped with a 5.6-inch industrial grade high brightness color LCD screen, it can display clearly even in strong sunlight, making it convenient for outdoor operation and viewing.
7. External printer (optional), convenient for on-site printing of data. Simultaneously equipped with local storage and USB storage functions.
8. Intelligent power management, automatically dimming the LCD backlight to save power when not in use for a long time, with low battery charging prompt and over discharge protection function, and the instrument can be used normally during the charging process.
TECHNICAL PARAMETERS
| Item | Description |
| Measurement range | 0.9 ~ 10000 |
| Accuracy | ±(0.1%rdg+2dgt) @0.9 ~ 500 ±(0.2%rdg+2dgt) @500.01 ~ 3000 ±(0.3%rdg+2dgt) @3000.1 ~ 10000 |
| Resolution | 0.0001 @0.9 ~ 0.9999 0.001 @10 ~ 99.999 0.01 @100 ~ 999.99
0.1 @1000 ~ 9999.9 1 @≥10000 |
| Display | 5.6-inch industrial grade high brightness color LCD screen |
| Port | RS232, charging, USB |
| Protection functions | Reverse connection protection, output short circuit protection, etc. |
| Power supply | Rechargeable lithium batteries; Charger input 100-240VAC, 50Hz/60Hz.
The charging time is about 2 hours, and the usage time is more than 8 hours. |
| Operating conditions | Temperature -10 ~ 50℃; Relative humidity<90%, no condensation. |









