Medidor de resistividad terrestre
Description
El medidor de resistividad de tierra también se conoce como microohmímetro, ohmímetro, probador de resistencia de conexión a tierra de CC, que utiliza la mayor tecnología de microprocesador, prueba de cuatro cables, seguro y confiable.Es un instrumento especial para detectar la calidad de la unión equipotencial entre componentes metálicos de objetos como carcasas, cinturones de protección contra rayos, vigas de tierra, estructuras, armarios, barras de acero, tuberías, ventanas, barandillas, radiadores y líneas de montaje.También puede medir la resistencia de los conductores de conexión entre varios equipos eléctricos y tierra, la resistencia DC de transformadores, y también puede medir la resistencia de contacto de interruptores y contactos de enchufe, bobinas, alambres de metal, puntos de soldadura y otras resistencias de bajo valor.Ampliamente utilizado en telecomunicaciones, energía eléctrica, meteorología, sala de computadoras, campo petrolífero, líneas de distribución de energía, hierro Líneas de transmisión de torres, estaciones de servicio, rejillas de puesta a tierra de fábricas, pararrayos, etc. También tiene la función de medir voltaje CC y voltaje CA envejecer.
| Function | Equipotential bonding resistance test between metal components, low-value resistance test, resistance test of connecting conductors between ground and ground electrodes, contact resistance test, etc. |
| DC resistance range | 0.0001Ω~30.00KΩ Accuracy±1%rdg±5dgt |
| Resistance resolution | 0.0001Ω |
| Test method | Four-wire test |
| Test current | ≥1A |
| Open circuit voltage | ≤7V |
| Capacity factor | Measuring capacity factor≤15W |
| DC voltage range | 0.0V~1000V DC Accuracy±1.5%rdg±5dgt |
| DC voltage resolution | 0.1V |
| AC voltage range | 0.0V~750V AC Accuracy±1.5%rdg±3dgt |
| AC voltage resolution | 0.1V |
| Power | DC 6V 4.5Ah Large-capacity battery Continuous standby for more than 100 hours |
| Backlight | Controllable gray screen backlight, suitable for use in dim places |
| Display mode | 4-bit large LCD display, gray screen backlight |
| Measurement instructions | LED flashing indicator during measurement, LCD countdown display |
| LCD size | 108mm×65mm |
| Instrument size | L/W/H:277.2mm×227.5mm×153mm |
| Test line length | Red 5m,black 5m each 2PCS |
| Measure time | Resistance test:about 3second/time;Voltage test:about 2times/sec |
| USB interface | With USB interface, software monitoring, storage data can be uploaded to the computer, save and print |
| Communication Line | USB Communication Line 1PC |
| Data storage | 500 groups,”MEM” stores indicates, the “FULL” symbol indicates that the storage is full |
| Data review | Data review function: “MR” symbol display |
| Overflow display | Over-range overflow function: “OL” symbol display |
| Alarm function | Alarm when the measured value exceeds the alarm setting value |
| Battery voltage | Real-time display of battery power, reminding timely charging when battery voltage is low |
| Automatic shut-down | “APO” indicates automatic shutdown after 15 minutes |
| Power consumption | Standby: 30mA Max(backlight off) |
| Turn on backlight: 43mA Max | |
| Measure:2A Max(backlight off) | |
| Weight | Instrument: 2397g(including battery) |
| Test line:850g(including simple test line) | |
| Instrument box:1200g | |
| Working temperature and humidity | -10℃~40℃;below 80%rh |
| Storage temperature and humidity | -20℃~60℃;below 70%rh |
| Overload protection | C1-C2 P1-P2 AC 280V/3 seconds between ports |
| Insulation resistance | Above 10MΩ(500V between circuit and housing) |
| Pressure resistance | AC 3700V/rms( between circuit and housing) |
| Electromagnetic properties | IEC61010-4-3,Wireless frequency electromagnetic field≤1V/m |
| Suitable for Safety Regulations | IEC61010-1, CAT III 600V, pollution degree 2, JJG724-1991 “DC digital ohmmeter verification procedure”, JJG166-1993 “DC resistance verification procedure”, “DL/T967-2005 loop resistance tester and DC resistance fast Tester verification procedure |
