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Help CenterEquipotential Bonding Resistance Tester DYDW-630
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Product introduction
DYDW-630 digital equipotential tester adopts the microprocessor technology and four wire method for testing, which is safe, precise and reliable. It is a special instrument to detect the equipotential bonding quality between metal components of equipment shells, lightning strips, ground beams, structures, cabinets, steel bars, water pipes, windows, guardrails, radiators, assembly lines and other objects. It can also measure the resistance of connecting conductors between various electrical equipment and ground grid poles, the DC resistance of transformers, as well as the contact resistance of switches, socket contacts, coils, metal conductors, welding points and other low value resistances. It is widely used in telecommunications, electricity, meteorology, machine rooms, oil fields, power distribution lines, tower transmission lines, gas stations, factory grounding grids, lightning rods, etc. It also has the function of measuring DC voltage and AC voltage.
DYDW-630 digital equipotential tester consists of host, monitoring software, test line, communication line, etc. The large LCD display of the host is clear at a glance. It can store 500 groups of data, resistance measurement range: 0.0001 Ω~30K Ω, DC voltage range: 0.0~1000V, AC voltage range: 0.0~750V. The monitoring software has online real-time monitoring and historical query functions, dynamic display, alarm value setting and alarm indication functions, historical data reading, viewing, saving, reporting, printing and other functions.
technical parameter
| Function | Equipotential bonding resistance test between metal components, low value resistance test, resistance test of connecting conductor between ground grid and ground electrode, 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 |
| Power | Measuring power≤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 Supply | DC 6V 4.5Ah Large capacity battery can stand by for more than 100 hours continuously |
| Backlight | Controllable gray white screen backlight, suitable for use in dim field |
| display mode | 4-bit large LCD display, gray white screen backlight |
| Measurement indication | LED flashes during measurement, LCD counts down |
| LCD size | 108mm*65mm |
| Instrument size | 277.2mm*227.5mm*153mm |
| Test line length | 2 for each 5m red and 5m black |
| Measuring time | Resistance test: about 3s/time; Voltage test: about 2 times/s |
| USB interface | USB interface, software monitoring, data storage can be uploaded to the computer, saved and printed |
| Communication line | 1 USB communication cable |
| data storage | 500 groups, "MEM" storage indication, displaying "FULL" symbol indicates that the storage is full |
| Data query | Data query function: "MR" symbol display |
| Overflow display | Overrange overflow function: "OL" symbol display |
| Alarm function | Alarm prompt will be given when the measured value exceeds the alarm set value |
| Battery voltage | The battery power is displayed in real time. When the battery voltage is low, it will remind you to charge in time |
| Automatic shutdown | "APO" indication, automatic shutdown 15 minutes after startup |
| power waste | Standby: 30mA Max (backlight off) |
| Turn on the backlight when starting up: 43mA Max | |
| Measurement: 2A Max (backlight off) | |
| Quality | Instrument: 2397g (including battery) |
| Test line: 850g (including simple test line) | |
| Instrument box: 1200g | |
| Operating temperature and humidity | -10ºC~40ºC;Below 80% rh |
| Storage temperature and humidity | -20ºC~60ºC;Below 70% rh |
| overload protection | C1-C2 P1-P2 AC 280V/3sec between ports |
| insulation resistance | Above 10M Ω (500V between circuit and shell) |
| Withstand voltage | AC 3700V/rms(Between circuit and housing) |
| Electromagnetic characteristics | IEC61010-4-3,Radio frequency electromagnetic field ≤ 1V/m |
| Suitable for safety regulations | IEC61010-1, CAT 600V, pollution level 2, JJG724-1991 Verification Regulation of DC Digital Ohmmeter, JJG166-1993 Verification Regulation of DC Resistor, DL/T967-2005 Verification Regulation of Loop Resistance Tester and DC Resistance Fast Tester |
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