Description
UNI-T UT502A adalah alat uji insulation resistance (tahanan isolasi) yang dirancang untuk memeriksa keamanan instalasi listrik dengan mengukur ketahanan isolasi antar konduktor. Dikenal juga sebagai earth meter, alat ini sangat penting untuk pemeliharaan sistem listrik dan inspeksi proteksi terhadap kebocoran arus.
FITUR UNI-T UT502A
- Layar LCD 2000 hitungan, indikasi kelebihan beban, lampu latar
- Pengukuran tegangan AC, daya mati otomatis
- Pelepasan daya otomatis
- Pengukuran resistansi rendah berkelanjutan
- Mode pengukuran berkelanjutan, lampu peringatan merah dan fungsi buzzer
- Pengukuran PI dan DAR, perhitungan resistivitas otomatis
- Fungsi resistansi rendah kembali ke nol untuk meningkatkan akurasi
SPESIFIKASI UNI-T UT502A
| Specifications | Range | UT501A | UT501B | UT502A | |
| Insulation resistance (Ω) | Test voltages | 100V/250V/500V/1000V | 0%~10% | ||
| 250V/500V/1000V | 0%~10% | ||||
| 500V/1000V/2500V | 0%~10% | ||||
| 100V | 0MΩ~100MΩ | ±(3%+5) | |||
| 250V | 0MΩ~99.9MΩ | ±(3%+5) | ±(3%+5) | ||
| 100MΩ~5GΩ | ±(5%+5) | ±(5%+5) | |||
| 500V | 0MΩ~99.9MΩ | ±(3%+5) | ±(3%+5) | ±(3%+5) | |
| 100MΩ~5GΩ | ±(5%+5) | ±(5%+5) | ±(5%+5) | ||
| 1000V | 0MΩ~99.9MΩ | ±(3%+5) | ±(3%+5) | ±(3%+5) | |
| 100MΩ~5GΩ | ±(5%+5) | ±(5%+5) | ±(5%+5) | ||
| 2500V | 0MΩ~99.9MΩ | ±(3%+5) | |||
| 100MΩ~9.9GΩ | ±(5%+5) | ||||
| 10GΩ~20GΩ | ±(10%+5) | ||||
| Load current | 50V (R=50kΩ) 1mA | 0%~10% | 0%~10% | 0%~10% | |
| 100V (R=100kΩ) 1mA | 0%~10% | 0%~10% | 0%~10% | ||
| 250V (R=250kΩ) 1mA | 0%~10% | 0%~10% | 0%~10% | ||
| 500V (R=500kΩ) 1mA | 0%~10% | 0%~10% | 0%~10% | ||
| 1000V (R=1MΩ) 1mA | 0%~10% | 0%~10% | 0%~10% | ||
| 2500V (R=1MΩ) 1mA | 0%~10% | ||||
| Short-circuit current | <2mA | <2mA | <2mA | ||
| Low resistance (Ω) | 0.01Ω~200Ω (about 5.0V/>200mA） | ±(2%+3) | ±(2%+3) | ||
| AC voltage (V) | 30V~750V | ±(2%+3) | |||
| 30V~600V | ±(2%+3) | ±(2%+3) | |||
| Features | |||||
| Display count | 2000 | 2000 | 2000 | ||
| DAR | 60s/15s and 60s/30s | √ | √ | ||
| PI | √ | √ | |||
| Auto range/Low battery indication | √ | √ | √ | ||
| LCD backlight/Light alarm | √ | √ | √ | ||
| Buzzer alarm/High voltage indication | √ | √ | √ | ||
| Over load indication/Auto discharge | √ | √ | √ | ||
| Test voltage secondary display | √ | √ | √ | ||
| 10MΩ internal resistance test | √ | √ | √ | ||
| Meets IEC 61557 | 61557-1:2007; 61557-2:2007; 61557-4:2007 (UT502A only) | ||||
| General Characteristics | |||||
| Power | 1.5V battery (LR6) x 6 | ||||
| Display | 70.6mm x 34mm | ||||
| Product color | Red and grey | ||||
| Product net weight | 500g | ||||
| Product size | 150mm x 100mm x 71mm | ||||
| Standard accessories | Batteries, test leads, alligator clips, gallus, test probes (UT502A) | ||||
| Standard individual packing | Gift box, carrying bag, English manual | ||||
| Standard quantity per carton | 20pcs | ||||
| Standard carton measurement | 500mm x 380mm x 330mm (0.063 CBM per standard carton) | ||||
| Standard carton gross weight | UT501A: 17.7kg; UT501B: 20.9kg; UT502A: 18.9kg | ||||
