Product Introduction
The UHV-2671A Digital Megohmmeter, manufactured by Wuhan UHV, is designed using medium- and large-scale integrated circuits. This meter features high output power, a high short-circuit current value, and multiple output voltage levels.
The operating principle is as follows: the DC high voltage generated by DC/DC conversion from the internal battery serves as the power source. This voltage is applied from the E terminal to the L terminal through the device under test, generating a current flow from E to L. After I/V conversion and division, the measured insulation resistance value is directly displayed on the LCD screen.
Product Characteristics
1. Auto Discharge Function: Ensures safer operation by automatically discharging residual voltage.
2. LCD Backlight: Provides clear visibility in low-light conditions.
3. Live Wire Warning: Features audible indication to alert users when a live wire is detected.
4. Auto Power-Off: Automatically powers off after 10 minutes of inactivity to conserve battery life.
5. Low Battery Indication: Alerts the user when the battery level is low, ensuring timely replacement or recharging.
Parameter teknik
| Tegangan pengenal | 100V | 250V | 500V | 1000V | 2500V |
| Rentang pengukuran | 0.0-10MΩ 10-100MΩ 100-200MΩ | 0.0-10MΩ 10-100MΩ 100-500MΩ | 0.0-99.9MΩ 100-999MΩ | 0.0-99.9MΩ 100-999MΩ 1.00-19.9GΩ | 0.0-99.9MΩ 100-999MΩ 1.00-9.99GΩ 10.0-49.9GΩ |
Sirkuit terbuka tegangan | DC 100V+10% | DC 250V+10% | DC 500V +20% | DC 1000V+20% | DC 2500V+20% |
Pengukuran standar saat ini | 0.5MΩ When the load 0,2mA-0,25mA | 0.5MΩ When the load 0,5mA-0,55mA | 0.5MΩ When the load 1mA-1.1mA | 1.0MΩ When the load 1mA-1.1mA | 2.5MΩ When the load 1mA-1.1mA |
| Hubungan pendek | sekitar 1,3mA | ||||
| presisi | ±5%rdg±5dgt | ||||
Pengukuran Tegangan
| AC Berbalik | |
| Jangkauan | 30-600V (50/60Hz) |
| Resolusi | 1V |
| Ketepatan | ±2%rdg±3dgt |
Spesifikasi teknis
| Parameter | Indeks |
| layar LCD | Maks 999 hitungan |
| Indikasi jarak jauh | OL：appears on insulation resistance LO：appears on voltage |
| Rentang otomatis | Pergeseran rentang ke rentang atas: 1000 hitungan Pergeseran rentang ke rentang yang lebih rendah: 95 hitungan (hanya pada isolasi) |
| Tingkat pengambilan sampel | 0,5-10 kali/detik |
| Operasi | ≤2000m(indoor use) |
| Lingkungan operasi | The temperature：0°C-40°C humidity：≤85% |
| Lingkungan penyimpanan | The temperature：-20°C-60°C humidity：≤90% |
| Perlindungan kelebihan beban | Insulation resistance range: AC 1200V/10 seconds Voltage range: AC 720V/10 seconds |
| Tahan tegangan | AC 8320V（50/60Hz）/5 seconds (between circuit and periphery) |
| Impedansi isolasi | >1000MQ/DC 1000V (Antara sirkuit dan pinggiran) |
| Sumber Daya listrik | DC9V(baterai AA 6*l.5V) |
| Baterai | kira-kira. 800mA (maks) |
| Daya tahan baterai | kira-kira. 15 jam |
| Dimensi | 125,4x174,6x69mm |
| Berat | 547.44g (tanpa baterai dan kabel uji) |
Maintenance
