General Specification
| Project | Model Performance parameters | MEWOI 26 | MEWOI 26H | |
| Source | DC millivolt | Range | -10 ～ 110mV | -10 ～ 110mV |
| Accuracy= ±(% of the set value+% of range) | 0.01%+0.01% | 0.01%+0.01% | ||
| Resolution | 1uV | 1uV | ||
| DC voltage | Range | -0.1 ～ 11V | -0.1 ～ 11V | |
| Accuracy= ±(% of the set value+% of range) | 0.01%+0.01% | 0.01%+0.01% | ||
| Resolution | 10uV/0.1mV | 10uV/0.1mV | ||
| DC current | Range | 0 ～ 33mA | 0 ～ 33mA | |
| Accuracy= ±(% of the set value+% of range) | 0.01%+0.01% | 0.01%+0.01% | ||
| Resolution | 1uA | 1uA | ||
| Sink current | Range | 0 ～ 33mA | 0 ～ 33mA | |
| Accuracy= ±(% of the set value+% of range) | 0.01%+0.01% | 0.01%+0.01% | ||
| Resolution | 1uA | 1uA | ||
| External power supply | 5 ～ 28V | 5 ～ 28V | ||
| Resistance | Range | 0 ～4KΩ | 0 ～4KΩ | |
| Accuracy= ±(% of the set value+% of range) | 0.01%+0.01% | 0.01%+0.01% | ||
| Resolution | 0.01Ω/0.1Ω | 0.01Ω/0.1Ω | ||
| Thermocouple | Range | R/S/K/E/J/T/B/N/L/U | R/S/K/E/J/T/B/N/L/U | |
| Accuracy | 0.4℃ | 0.4℃ | ||
| Resolution | 0.1℃/1℃ | 0.1℃/1℃ | ||
| RTD | Range | Pt100/Pt200/Pt500/ Pt1000/Cu10/Cu50 | Pt100/Pt200/Pt500/ Pt1000/Cu10/Cu50 | |
| Accuracy | 0.2℃ | 0.2℃ | ||
| Resolution | 0.1℃ | 0.1℃ | ||
| Frequency （Hz） | Range | 1Hz ～50KHz | 1Hz ～50KHz | |
| Accuracy | ±2words | ±2words | ||
| Resolution | 0.01Hz/1Hz/0.1KHz/2KHz | 0.01Hz/1Hz/0.1KHz/2KHz | ||
| Frequency（CMP） | Range | 60～1200 CPM | 60～1200 CPM | |
| Accuracy | ±2words | ±2words | ||
| Resolution | 1CPM | 1CPM | ||
| Pulse | Frequency | 1Hz ～10KHz | 1Hz ～10KHz | |
| Range | 1 ～100000cyc | 1 ～100000cyc | ||
| Accuracy | ±2words | ±2words | ||
| Resolution | 1cyc | 1cyc | ||
| Switch | Range | 1Hz ～50KHz | 1Hz ～50KHz | |
| Accuracy | ±2个字 | ±2个字 | ||
| Resolution | 0.01Hz/1Hz/0.1KHz/2KHz | 0.01Hz/1Hz/0.1KHz/2KHz | ||
| Pressure | Range | Depends on the pressure module | Depends on the pressure module | |
| Accuracy= ±(% of the set value+% of range) | Depends on the pressure module | Depends on the pressure module | ||
| Resolution | 5 digit display | 5 digit display | ||
| Measurement | DC millivolt | Range | -5 ～ 550mV | -5 ～ 550mV |
| Accuracy= ±( % of Reading+ % of Range) | 0.01%+0.01% | 0.01%+0.01% | ||
| Resolution | 1uV/10uV | 1uV/10uV | ||
| DC voltage | Range | -0.5 ～ 35V | -0.5 ～ 35V | |
| Accuracy= ±( % of Reading+ % of Range) | 0.01%+0.01% | 0.01%+0.01% | ||
| Resolution | 0.1mV/1mV | 0.1mV/1mV | ||
| DC current | Range | -5 ～ 55mA | -5 ～ 55mA | |
| Accuracy ±( % of Reading+ % of Range) | 0.01%+0.01% | 0.01%+0.01% | ||
| Resolution | 1uA | 1uA | ||
| Resistance | Range | 0 ～5.5KΩ | 0 ～5.5KΩ | |
| Accuracy= ±( % of Reading+ % of Range) | 0.01%+0.01% | 0.01%+0.01% | ||
| Resolution | 0.01Ω/0.1Ω | 0.01Ω/0.1Ω | ||
| Thermocouple | Range | R/S/K/E/J/T/B/N/L/U | R/S/K/E/J/T/B/N/L/U | |
| Accuracy | 0.5℃ | 0.5℃ | ||
| Resolution | 0.1℃/1℃ | 0.1℃/1℃ | ||
| RTD | Range | Pt100/Pt200/Pt500/ Pt1000/Cu10/Cu50 | Pt100/Pt200/Pt500/ Pt1000/Cu10/Cu50 | |
| Accuracy | 0.5℃ | 0.5℃ | ||
| Resolution | 0.1℃ | 0.1℃ | ||
| Frequency （Hz） | Range | 3Hz ～50KHz | 3Hz ～50KHz | |
| Accuracy | ±2words | ±2words | ||
| Resolution | 0.01Hz | 0.01Hz | ||
| Frequency（CMP） | Range | 180～3000000 CPM | 180～3000000 CPM | |
| Accuracy | ±2words | ±2words | ||
| Resolution | 1CPM | 1CPM | ||
| Switch | Range | CLOSE/OPEN | CLOSE/OPEN | |
| Threshold | 200 ～300Ω | 200 ～300Ω | ||
| Pressure | Range | Depends on the pressure module | Depends on the pressure module | |
| Accuracy= ±( % of Reading+ % of Range) | Depends on the pressure module | Depends on the pressure module | ||
| Resolution | 5 digit display | 5 digit display | ||
| Pulse | Range | 1 ～100000cyc | 1 ～100000cyc | |
| Accuracy | ±2words | ±2words | ||
| Resolution | 1cyc | 1cyc | ||
| Loop power supply | Range | 24V | 24V | |
| Accuracy | ±10% | ±10% | ||
| The maximum current | 22mA | 22mA | ||
| HART | × | √ | ||
| Other functions | Backlight | √ | √ | |
| Auto Power-off | √ | √ | ||
| Charging function | √ | √ | ||
| Room temperature display | √ | √ | ||
| Battery detection | √ | √ | ||
| The ramp signal | √ | √ | ||
| Communication function | RS232 serial communication, can realize remote control instrument by the device driver software. | RS232 serial communication, can realize remote control instrument by the device driver software. | ||
| Characteristic | ||||
| Safety | EN61010-1：2001 | EN61010-1：2001 | ||
| Withstand voltage | The input and output AC350V/1 minutes | The input and output AC350V/1 minutes | ||
| Insulation | The input and output DC500V /50MΩ. | The input and output DC500V /50MΩ. | ||
| EMC | EN61326-1：2006 | EN61326-1：2006 | ||
| Authentication | CE | CE | ||
| Display | 3.2“ TFT screen | 3.2“ TFT screen | ||
| Power supply | 4×1.5V AA Alkaline battery | 4×1.5V AA Alkaline battery | ||
| Size | 206 × 97 × 60 mm | 206 × 97 × 60 mm | ||
| Weight | about 633g | about 633g | ||
| Standard Quantity Per Carton | 6pcs | 6pcs | ||
| Standard Carton Measurement | 530mm*405mm*310mm | 530mm*405mm*310mm | ||
| Standard Carton Cross Weight | 12.6kg | 12.6kg | ||