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Ⅰ.INTRODUCTION
MEWOI7500 High Accuracy Clamp Leaker is specially designed for AC leakage current measurement. It obtains the latest CT and digital integration technology, with characteristics of small volume, high accuracy and perfect function. It is widely used in electric power, telecommunications, meteorology, railways, oil construction, measurement, scientific research and teaching unit, industrial and mining enterprises, etc. Special alloy is used as its sensor core, which applied magnetic shielding technology, results in a almost free interference of external magnetic field. RS232 interface is available on the meter. The meter can achieve online real-time monitoring and historical queries; in dynamic display, with maximum, minimum and mean value indications; also alarm value setting and alarm indication function, historical data reading, saving and print functions, etc. The meter can be used for on-line AC current measurement below AC600V, with the functions of peak maintaining, reading holding and data memory. In all, it is high accurate and easy and safe to use. |
Ⅱ.APPLICATION
Technical Specification
Function | AC leakage measurement, AC current measurement, On-line AC current measurement |
Power Supply | 6F22 9V |
Process Type | Clamp CT, Integral Approach |
Display Type | 4 Digits LCD |
Clamp Size | 35mm×40mm |
Meter Dimension | LWH: 175mm×70mm×38mm |
LCD Dimension | 35mm×21.5mm; Display Dimension: 32mm×15mm |
Sampling Rate | 2 Times/Second |
Frequency | 50Hz, 60Hz Automatic identification |
Shifting | Automatic Shift |
Range | 0.00mA~300.0A |
Resolution | 10uA |
Accuracy (23℃±3℃, below 70%RH) | 0mA~60A: ±1.5%±5dgt |
60A~200A: ±2%±5dgt | |
200A~300A: ±3%±5dgt | |
Line voltage | Below AC 600V |
RS232 Interface | With RS232 interface, Data stored in the memory can be uploaded to the computer, with software monitoring |
Data Memory | 99 sets, “FULL” Blinking when memory is full |
Peak Maintaining | Peak value capture hold function, press HOLD without Release to display peak value |
Reading Hold | Reading hold function: “DH” symbol display |
Overflow display | Range overflow function: “OL” symbol display |
Automatic Shutdown | 5 minutes after the boot |
Battery Detection | When battery voltage is lower than 7.2V, low battery symbol will shown to remind battery replacement. |
Meter Weight | 140g (With battery) |
Rated Power | 5mW |
Working Temperature and Humidity | 0℃~40℃; below 80%rh |
Storage Temperature and Humidity | -10℃~60℃; below 70%rh |
Insulation Strength | AC2kV/rms (between core and box) |
Safety Provisions | IEC1010-1, IEC1010-2-032, Pollution level 2, CAT Ⅲ(600V) |
Accessories | Meter: 1 piece, RS232 Com-cable:1 piece; Software Disk: 1 piece; Battery (6F22 9V): 1 piece |
