Ⅰ. INTRODUCTION
| MEWOI7800E Clamp Meter is specially designed for measurement online of AC/DC leakage current with voltage below 600V; by adopting up-to-date CT technology and digital integration technology, There is not metallic conductor outside the clamps, non-contact test to ensure save. It is a product with relatively small size, large clamp, high accuracy and perfect function, widely applied in those fields as electricity, communications, meteorology, railroad, oilfield, construction, measurement, scientific & research teaching institutes, industrial and mining. It is essential tool for electrician safety testing.  This High Accuracy Clamp Leaker have the function of peaking holding, data holding data storage; obtains one USB interface. With the help of the software that we provide, many functions are available. For example, the meter can realize on-line monitoring, historical data inquiry, active curve drawing, indication of max, min and average value and indication, alarm value setting, indication of alarm value, historical data inquiry, export, and print.  | 
Ⅱ.APPLICATION
TECHNICAL SPECIFICATION
Function  | Measure AC/DC current, peak hold, online monitor  | 
Size of clamp  | Φ68mm  | 
Range  | DC:0.0A~2000A AC:0.0A~1500A  | 
Accuracy  | ±2%rdg±3dgt  | 
Resolution  | 0.1A  | 
Dimension  | 224mm×115mm×43mm  | 
Data interface  | USB  | 
Weight  | 515g(with battery)  | 
Power Supply  | Zn-Mn dry battery 6F22 9V, lasting for100hours  | 
Test Mode  | Clip-on CT, noncontact mode  | 
Display Mode  | Four digits LCD display  | 
LCD Dimension  | 35mm×21.5mm; display domain: 32mm×15mm  | 
Frequency  | AC 45Hz~400Hz  | 
Sampling Rate  | 2 times/s  | 
Polarity Indication  | DC current auto identified and display“—”  | 
Test Position  | Tested wire in the jaw center; Error will increase to 1.5%rdg max if deviate the center  | 
Range Shift  | Automatically  | 
Line Voltage  | AC600V  | 
Software  | with the software the data can upload to computer  | 
Data Memory  | 99units, FULL blinks when the memory is full  | 
Peak Hold  | Push HOLD without release, the meter will show the peak value during the pushing period  | 
Reading Hold  | DH indicating the reading is hold  | 
Out of Range  | OL indicating the current is out of range  | 
Auto Power-off  | 5 Minutes after power on, it will power off automatically to lower the power consumption  | 
Battery Voltage  | Indicating the battery voltage is lower than 7.2V.Then the battery have to be changed  | 
Consumption  | 10mW  | 
Temperature and Humidity  | -10℃~50℃; Below 80%rh  | 
Max error refer to environment  | -10℃~0℃,40℃~50℃,Error will increase max to 1%rdg  | 
Temperature and Humidity for storage  | -10℃~60℃,below 70%rh  | 
Insulating Strength  | AC2kV/rms. (between the alloy of the clamp and the housing)  | 
Applicable safety rules  | IEC1010-1, IEC1010-2-032, Pollution level 2, CAT Ⅲ(600V)  | 
Accessories  | Meter: 1pc; USB communication line: 1pc; software: 1pc; battery (6F22 9V):1pc.  | 
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