| Characteristic | Value | 
        
            | Output AC voltage (symmetrical), OLT-80/OLT-90/OLT-100, kV rms 
 | 80/90/100 
 | 
        
            | Voltage resolution, kV 
 | 0.1 | 
        
            | Measurement uncertainty, % of FS | 3 | 
        
            | Output voltage rise rate, kV/s 
 | 2 ± 0.2 | 
        
            | Switch-off time on breakdown, μs | < 5 | 
        
            | Electrodes | “mushroom” type IEC 60156 | 
        
            | Test vessel | IEC 60156, 400 ml, 1.0 kg | 
        
            | Go/No-Go gauge width, mm | 2.45 / 2.55 | 
        
            | Display 
 | 3 × 7-segment digits 
 | 
        
            | Input voltage, V | 230 ± 10% | 
        
            | Line frequency, Hz | 50 ± 1 | 
        
            | Power consumption OLT-80/ OLT-90/OLT-100, VA 
 | 100/120/140 
 | 
        
            | OLT-80 dimensions (W × H × D), mm 
 | 471 × 280 × 271 
 | 
        
            | OLT-90 dimensions (W × H × D), mm | 500 × 300 × 320 
 | 
        
            | OLT-100 dimensions (W × H × D), mm | 540 × 315 × 320 
 | 
        
            | Net weight OLT-80/ OLT-90/OLT-100, kg 
 | 23/27/32 
 |