| METRISO PRIME | METRISO INTRO | METRISO BASE | |
|---|---|---|---|
| Item number | M550U | M550N | M550O |
| Product details page | Details | Details | Details |
| Indication | Analogue | Digital | Digital |
| Analogue bar graph display | x | x | x |
| Current supply | Hand driven generator | Battery | Battery |
| Background lighting LC-indication | x | x | |
| External voltage detection at OFF-state | x | x | |
| Intelligent filter system - measurement-dependent and precise activation for measurements with high value resistances | x | x | x |
| Compensation of 16 2/3 Hz Schwebungen and 50 Hz interferences | x | x | |
| Attenuation of capacitive influences (supply lines) | x | x | |
| Suppression of electric field influences | x | x | x |
| Isolation resistance measuring range | 0.01 - 0.199 | 0.01 - 0.199 | 0.01 - 0.199 |
| Nominal test voltage 100 V | x | x | |
| Nominal test voltage 250 V | x | x | x |
| Nominal test voltage 500 V | x | x | x |
| Nominal test voltage 1000 V | x | x | |
| Nominal test voltage 2500 V | x | ||
| Nominal test voltage 5000 V | x | ||
| Nominal test voltage adjustable | x | ||
| Low resistance measurement | x | x | |
| Voltage measurement | x | x | x |
| Over voltage protector testing | |||
| Measured value memory | |||
| Data hold | |||
| Interface | |||
| Nominal test voltage adjustable with ramp function | |||
| Device self-test with built-in test resistor | x | ||
| Overvoltage protection - electronic fuse | x | x |