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INTRODUCTION
MEWOI4480A Insulation Resistance Tester for insulation resistance test。This instrument is a high-performance digital instrument，with large LCD display、with screen and backlight、storage function、automatic shutdown and other functions。Insulation resistance value , test time and output voltage are display on the same screen。Capable of measuring AC / DC voltage。The meter has a max output voltage of 2500V, a max test resistance of 200GΩ, and a max short-circuit current of 2mA. MEWOI4480A insulation resistance meter is beautiful, wide range, high accuracy, high resolution, convenient operation, easy to carry, accurate and reliable, stable performance, strong anti-interference ability. It also has a shockproof, dustproof, and moisture-proof structure. It is a commonly used and indispensable instrument for telecommunications, electric power, meteorology, machine rooms, oil fields, mechanical and electrical installation and maintenance, and industrial enterprises that use electricity as industrial power or energy。Suitable for measuring the insulation resistance of electirc motor , cable ,switch, motor ,cable,swith, electrical appliance and other electrical equipment and insulation materials. |
MAIN FEATURES
1. Suitable for measuring the insulation resistance of electric motor, cable, switch, electrical appliance and other electrical equipment and insulation materials. Insulation resistance value, test time and output voltage are displayed on the same screen. |
2.Insulation Resistance Range: 0.1MΩ~200GΩ |
3. Voltage Range: AC/DC 0~750V |
4. Rated Voltage: 2500V |
5. Shout Circuit Current: ≥2mA MAX |
SPECIFICATION
| Function | Description |
| Function | insulation resistance test,AC/DC voltage test |
| Power Supply | DC 1.5V LR14X6PCS |
| Rated Voltage | 50V / 250V / 500V / 1000V / 2500V |
| Insulation Resistance Range | 0.1MΩ～200GΩ |
| Voltage Range | AC/DC 0V～750V |
| Shout Circuit Current | ≥2mA MAX |
| Max Capacitive Load | 1uF |
| DielectricAbsorptionRatioTest (DAR) | Yes |
| Polarization Index Test（PI) | Yes |
| Shift | Turn the shift rotary knob to select the appropriate gear |
| Backlight | Controllable off-white backlight, suitable for dark places |
| Display Mode | 4 digital LCD display |
| Measurement indication | LED flicker and buzzer ring in measurement |
| LCD Size | 108mm×65mm |
| Meter Dimension | 212mm×175mm×76mm |
| Test Wires | High voltage bar test wire： Red 1PCS； Probe test wire： Black 1PCS；Alligator clip test wire：1PCS；Alligator clip：1PCS |
| Test Time | The single test time is 1 min. During the test, the user can stop automatically or automatically stop after 1 min, and the screen display measurement data |
| Battery Voltage | Battery voltage symbol display, when battery voltage is low will remind to replace the battery in time |
| Automatic Discharge | Automatic release the voltage of the measured object, During discharging,symbol flash.Discharge completion symbol extinguish |
| Auto Shutdown | 15 minutes after boot up, the meter shuts down automatically without any operation |
| Power Consumption | Standby: about 40mA(backlight off)；Start up with backlight：about 50mA；Measurement：about 100mA(backlight off) |
| Weight | 1230g |
| Working Temperature and Humidity | -10℃～40℃；below 80%rh |
| Storage Temperature and Humidity | -20℃～60℃；below 70%rh |
| Suitable Safety Standard | IEC61010-1(CAT Ⅲ 300V、CAT IV 150V、Pollution 2) |
Measure Range and Accuracy
Function | Output Voltage | Range（Ω） | Accuracy | Resolution |
Insulation Resistance | 50V(±2%) | 100K～5M | ±3%rdg±5dgt | 0.01M |
5M～100M | ±5%rdg±5dgt | 0.1M | ||
100M～1G | ±5%rdg±5dgt | 1M | ||
1G～4G | ±10%rdg±5dgt | 10M | ||
250V(±2%) | 500K～25M | ±3%rdg±5dgt | 0.01M | |
25M～500M | ±5%rdg±5dgt | 0.1 | ||
500M～5G | ±5%rdg±5dgt | 1M | ||
5G～20G | ±10%rdg±5dgt | 10M | ||
500V(±2%) | 1M～50M | ±3%rdg±5dgt | 0.1M | |
50M～1G | ±5%rdg±5dgt | 1M | ||
1G～10G | ±5%rdg±5dgt | 10M | ||
10G～40G | ±10%rdg±5dgt | 0.1G | ||
1000V(±2%) | 2M～100M | ±3%rdg±5dgt | 0.1M | |
100M～2G | ±5%rdg±5dgt | 1M | ||
2G～20G | ±5%rdg±5dgt | 10M | ||
20G～80G | ±10%rdg±5dgt | 0.1G | ||
2500V(±2%) | 10M~250M | ±3%rdg±5dgt | 0.1M | |
250M～5G | ±5%rdg±5dgt | 1M | ||
5G～50G | ±5%rdg±5dgt | 10M | ||
50G～200G | ±10%rdg±10dgt | 1G | ||
| 5000V(±2%) | 50M~500M | ±3%rdg±5dgt | 1M | |
| 500M～10G | ±5%rdg±5dgt | 10M | ||
| 10G～100G | ±5%rdg±5dgt | 0.1G | ||
| 100G~400G | ±10%rdg±10dgt | 1G | ||
Voltage | AC/DC： 0.0V～750V | ±5%rdg±5dgt | 0.1V | |
SELECTION GUIDE
| Model No./Link | Voltage Range | Resistance Range | Resolution | Accuracy | Short circuit current | Polarization Index Absorption Ratio | Power Supply | Others |
| 250V / 500V / 1000V / 2500V//5KV/10KV | 20TΩ | 7mA | √ | Rechargeable lithium battery pack 6.2Ah | DAR/PI | ||
| 250v~15Kv(7gears) | 30TΩ | 7mA | √ | Rechargeable lithium battery pack 6.2Ah | DAR/PI | ||
| 250V / 500V / 1000V / 2500V//5KV | 10TΩ | ±5%rdg±3dgt | 7mA | √ | Rechargeable lithium battery pack 6.2Ah | DAR/PI | |
| 250V / 500V / 1000V / 2500V//5KV/10KV | 5TΩ | ±5%rdg±3dgt | 5mA | √ | Rechargeable lithium battery pack 5.2Ah | DAR/PI | |
| 250V / 500V / 1000V / 2500V//5000V | 2TΩ | ±5%rdg±3dgt | 5mA | √ | Rechargeable lithium battery pack 5.2Ah | DAR/PI | |
| 50V / 250V / 500V / 1000V / 2500V//5000V | 0.1MΩ~400GΩ | 0.01M | ±3%rdg±5dgt | 2mA | √ | DC 1.5V LR14X6PCS | DAR/PI |
| 50V / 250V / 500V / 1000V / 2500V | 0.1MΩ~200GΩ | 0.01M | ±3%rdg±5dgt | 2mA | √ | DC 1.5V LR14X6PCS | DAR/PI |
| 50V / 250V / 500V / 1000V / 2500V//5000V | 0.1MΩ~400GΩ | 0.01M | ±3%rdg±5dgt | 2mA | - | DC 1.5V LR14X6PCS | - |
| 50V / 250V / 500V / 1000V / 2500V | 0.1MΩ~200GΩ | 0.01M | ±3%rdg±5dgt | 2mA | - | DC 1.5V LR14X6PCS | - |
| 1000V | 1MΩ～20GΩ | 20MΩ: 10kΩ, 200MΩ: 100kΩ, 2000MΩ: 1MΩ, 20GΩ: 10MΩ, 200GΩ: 100MΩ | 1MΩ～200MΩ: ± ( 3.0%+5 ), 200MΩ～10GΩ: ± ( 5.0%+5 ), 10GΩ～200GΩ: ± ( 10.0%+5 ) | - | - | - | - |
| 2500V | 1MΩ～20GΩ | - | - | - | - | ||
| 5000V | 1MΩ～200GΩ | - | - | - | - | ||
| 1000V | 0～19990MΩ | 0.01MΩ 0.1MΩ， 1.0MΩ， 10.0MΩ | 0～2000MΩ≤±5%±2d, 2000MΩ～19990MΩ≤10%±2d | ＞1.6mA | - | 8×1.5V(AA，R6)battery | - |
| 2500V | 0～19990MΩ | 0.01MΩ 0.1MΩ， 1.0MΩ， 10.0MΩ | 0～2000MΩ≤±5%±2d, 2000MΩ～19990MΩ≤10%±2d | ＞1.6mA | - | 8×1.5V(AA，R6)battery | - |
| 5KV | 500GΩ @ 5kV. | 1 MΩ | ± (10%+5Dgt) | 5mA | √ | Internal rechargeable battery | Printer+Touch Screen |
| 10KV | 1000GΩ @ 10kV. | 1 MΩ | ± (10%+5Dgt) | 5mA | √ | Internal rechargeable battery | Printer+Touch Screen |
| 10KV | 10TΩ @ 10kV. | 1 MΩ | ± (10%+5Dgt) | 5mA | √ | Rechargeable battery or AC Power Supply | Printer+Capacitance +Leakage Current |
| 15KV | 20TΩ @ 15kV. | 1 MΩ | ± (10%+5Dgt) | 5mA | √ | Rechargeable battery or AC Power Supply | Capacitance +Leakage Current |
| 20KV | 20TΩ @ 15kV. | 1 MΩ | ± (10%+5Dgt) | 5mA | √ | Rechargeable battery or AC Power Supply | Capacitance +Leakage Current |
