General Specification
| Project | MEWOI79 | MEWOI79A | ||
| Measurement | DC voltage | Range | ±400V | ±1000V |
| The highest resolution | 0.01mV | 0.01mV | ||
| Basic accuracy | 0.2% | 0.1% | ||
| AC voltage | Range | 400V | 750V | |
| The highest resolution | 0.1mV | 0.1mV | ||
| Basic accuracy | 0.5% | 0.5% | ||
| Resistance | Range | 40MΩ | 50MΩ | |
| The highest resolution | 0.1Ω | 0.1Ω | ||
| Basic accuracy | 0.2% | 0.1% | ||
| DC current | Range | ±400mA | ±500mA | |
| The highest resolution | 10uA | 1uA | ||
| Basic accuracy | 0.2% | 0.1% | ||
| AC current | Range | 400mA | 500mA | |
| The highest resolution | 10uA | 1uA | ||
| Basic accuracy | 0.5% | 0.5% | ||
| Thermocouple | Range | R、S、B、E、K、J、T、N | R、S、B、E、K、J、T、N | |
| The highest resolution | 1°C | 1°C | ||
| Basic accuracy | 0.5% | 0.5% | ||
| RTD | Range | Cu50、Pt100 | Cu50、Pt100 | |
| The highest resolution | 1°C | 1°C | ||
| Basic accuracy | 0.5% | 0.5% | ||
| CAP | Range | N/A | 100mF | |
| The highest resolution | 0.01nF | |||
| Basic accuracy | 5% | |||
| Frequency | 10Hz～100kHz | 10Hz～100kHz | ||
| Diode test | √ | √ | ||
| Continuity beeper | √ | √ | ||
| Data hold | √ | √ | ||
| Relative value measurement | √ | √ | ||
| Source | DC voltage | Range | -10.00mV～110.00mV -0.5000V～5.5000V | -10.00mV～110.00mV -100.0mV～1100.0mV -1.000V～11.00V |
| Resolution | 0.01mV、0.1mV | 0.001mV、0.01mV、0.1mV | ||
| Basic accuracy | 0.2% | 0.2% | ||
| Resistance | Range | 0～400.0Ω | 0～400.0Ω | |
| Resolution | 0.1Ω | 0.1Ω | ||
| Basic accuracy | 0.2% | 0.2% | ||
| DC current | Range | 22mA | 33mA | |
| Resolution | 0.001mA | 0.001mA | ||
| Basic accuracy | 0.2% | 0.2% | ||
| Simulating transmitter | √ | √ | ||
| 25％、100％Step output | √ | √ | ||
| Automatic ramp | √ | √ | ||
| Automatic step | √ | √ | ||
| Display current and % of span | √ | √ | ||
| Loop power | 15V | 24V | ||
| Frequency | 1.0Hz～11.0kHz | 1.0Hz～11.0kHz | ||
| Thermocouple | R、S、B、E、K、J、T、N | R、S、B、E、K、J、T、N | ||
| RTD | Cu50、Pt100 | Cu50、Pt100 | ||
| Loop detection | The 24V loop power supply and measuring the current | N/A | √ | |
| Built in 250 Ω HART loop resistance | N/A | √ | ||
| Power Supply | 4×1.5V AAA Alkaline battery | 4×1.5V AA Alkaline battery | ||
| Auto Power-off | √ | √ | ||
| Backlight | √ | √ | ||
| Safety | CAT Ⅲ 600V、 Pollution degree 2 | CAT Ⅲ 600V、 Pollution degree 2 | ||
| Size | 205×95×42 | 206×97×60 | ||
| Weight | About 500g | About 500g | ||
| Accessories | Test line、 manual、fuse | Test line、 manual、fuse | ||
| Standard Quantity Per Carton | 10pcs | 10pcs | ||
| Standard Carton Measurement | 395mm*385mm*260mm | 395mm*385mm*260mm | ||
| Standard Carton Cross Weight | 10.2Kg | 12Kg | ||