INTRODUCTION
Click to download: MEWOI9300G Color Page
Click to download: MEWOI9300G.MEWOI9000GB Flexible Current/Leakage Monitoring Recorder User Manual
Click to download: Selection Map
MEWOI9300G Three Channel Flexible Coil Current Monitoring Recorder esigned and manufactured for on-site simultaneous monitoring and recording 1-3 channel AC current or leakage current, it is composed of recorder host, flexible current clamps, charger, monitoring software and communication cable, etc. Widely used in electric power, communications, meteorology, railway, oil field, construction, measurement, scientific research and teaching units, industrial and mining enterprises and other fields. It is especially suitable for the current test in the industrial environment where the signal is seriously distorted, such as the flat cable dense place, large special-shaped wires, relay protection, thyristor rectifier, frequency conversion speed regulation, semiconductor switch, power electronic conversion equipment, arc welding and so on.Host adopts LCD display, three channels with the same screen display, clear at a glance, there are Chinese and English operation interface two choices, suitable for different countries of engineering and technical personnel. The recorder equipped large capacity rechargeable lithium battery, display power energy with a three-grid mode, which can continues recording up to 7 days. With the function of system clock and super storage space, it can set the monitoring and recording time on site, can store 200,000 sets of data, and has the function of setting the interval time of automatic storage, setting from 1 to 99 minutes. Monitoring software has online real-time monitoring and historical query functions, historical data reading, consulting, saving, reporting and other functions. Flexible current clamp, Rogowski Coil, adopts advanced Rogowski Coil technology, which is a loop coil uniformly wound on non-ferromagnetic materials, with no hysteresis effect, almost zero phase error, no magnetic saturation, high linearity and strong anti-interference ability.The output signal is the differential of the current with respect to time. By integrating the output voltage signal, the input current can be truly restored. The measured current ranges from milliamperes up to ten thousands of amperes.Flexible coil without any exposed metal conductor, non-contact measurement, safe and reliable. Small size, light weight, soft and flexible, suitable for narrow environment and flat cable dense places. High measurement accuracy, strong reliability, wide response frequency band, the user can customize the coil length according to demand. |
TECHNICAL SPECIFICATION
Function | Online monitoring and recording 1 ~ 3 channel ac current, recorder, High current measurement |
Power Supply | 3.7V rechargeable lithium battery(full charge about 4.2V) |
Flexible Current Clamp Quantity | 1-3PCS(selection) |
Test Method | Flexible CT: The output signal is the differential of current with respect to time. By integrating the output voltage signal, the input current can be truly restored. |
Range | AC 0.00A～20.00kA |
Resolution | AC 10mA |
Accuracy | ±2%±5dgt (the conductor is at the center of the flexible coil, 23℃±2℃) |
The Tested Current frequency | 50Hz~60Hz |
Display Mode | LCD: 128dots×64dots |
Host Dimension | 78mm×165mm×42mm |
Host Weight | 330g |
LCD Size | Display area: 44mm x27mm |
Flexible Current Clamp Caliber | customized according to customer requirements |
Flexible Coil Diameter | φ7.5mm (suitable for narrow environment and flat cable dense places) |
Current Clamp Lead Cable Length | 2M |
Electric Field Interference | No hysteresis effect, strong anti-interference ability |
Position Error | The tested conductor wire should try to be in the center of the flexible coil |
Sampling Rate | 2 times / sec |
Data Storage | 200，000 groups (Power down or replace battery will not lose the data) |
Record Period | Set the record interval time within 1 second ~ 99 minutes, 0 seconds is not automatically stored. |
Recording Time | Interval time 1 seconds, can continues recording 48 hours |
Interval time 10 seconds, can continues recording 120 hours | |
Interval time 1 minute, can continues recording 168 hours | |
Download Speed | 60KB/Min |
Overflow Display | Exceed measure range overflow function: "OL" symbol display |
Battery Voltage | Battery power real-time display, low battery voltage will remind to replace the battery. |
Communication interface | USB |
Rated Current | In power save mode about 6mA, Max about 35mA |
Working Temperature | -10℃～40℃；below 80%rh |
Storage temperature | 10℃～60℃；below 70%rh |
Line Voltage | Below AC600V circuit measurement |
Insulator strength | AC 2KV/rms |
Suitable Safety Standard | IEC1010-1, IEC1010-2-032, Pollution Class 2, CATⅢ(600V),IEC61326(EMC standard) |
SELECTION GUIDE 2
High Accuracy leakage current Clamp Meter/Tester
Click "Blue" marked MODEL NO.to view the spec
Model | Range | Resolution | Clamp size | Data Storge | RS232 |
φ7mm | 99sets | √ | |||
AC/DC 0.0A~1000A | 0.1A | 30mm×35mm | 99sets | √ | |
AC/DC 0mA~60A | 1mA | 25mm×30mm | 99sets | √ | |
AC 0.000mA~60.00A | 1uA | 25mm×30mm | 99sets | √ | |
DC 0.0mA~6.00A | 0.1mA | 25mm×30mm | 99sets | √ | |
AC 0.00mA~300.0A | 0.01mA | 35mm×40mm | 99sets | √ | |
AC 0mA~600A | 1mA | 35mm×40mm | 99sets | √ | |
AC 0.00mA~1200A | 0.01mA | φ68mm | 99sets | √ | |
AC 0.0A~1500A ,DC 0.0A~2000A | 0.1A | φ68mm | 99sets | √ |
TECHNICAL SPECIFICATION
| Functions | Field-line testing, monitoring, recording AC leakage current and Large current |
| Power source | DC6V, alkaline battery LR06 1.5V×4 |
| Testing Method | By integrating the output voltage signal , you can restore the real input current |
| Inner diameter | (φ300mm(Optional,Can be customized) |
| Range | 0.00A-20.000KA |
| Resolution | 10mA |
| Accuracy | ±2%±3dgt(cable in the center of the coil，23℃±2℃) |
| Coil Length | 1000mm((Can be customized)) |
| Current Frequency | 50Hz~60Hz(The measured current frequency，Automatic Identification) |
| LCD Display | LCD：128dots×64dots |
| LCD Size | 44mm×27mm |
| Host Dimension | W*L*H75mm×170mm×30mm |
| Diameter | φ7.5mm(Suitable for narrow cable-intensive sites) |
| Weight | Host(240g),Flexible Coil(150g) |
| Electric field interference | no magnetic saturation, high linearity, strong anti-interference ability |
| Position error | cable in the center of the coil,don't put the cable at the split area,error doubles or more at the split area |
| Sampling Rate | 2 samples/s |
| Data storage | 4200 sets (data loss does not occur after power failure or replacing the battery) |
| Time Setting | Recording internal adjustable from 1 to 60 min, If set to 0 min, the auto-store function is turned off |
| Recording Time | Continuously operate for about 100hours at the power-saving mode |
| Line Voltage | Line with a voltage up to AC600V |
| Overflow Display | The “OL” symbol is displayed when a measured value is beyond the measurement range |
| Battery. Voltage | A Low-Battery symbol is displayed and the user should replace the battery with a new one when the battery voltage drops to 4.6V to 4.8V. In this case, the measured values are still accurate. |
| Rated Power | about 5mA at the power-saving mode, maximum current consumption: 20mA |
| Lead Length | 2m |
| Temperature and Humidity | Working: -10℃～40℃；below 80%rh |
| Storage: -10℃～60℃；below 70%rh | |
| Insulation Resistance | Higher than 100MΩ, 1000V |
| Safety Codes | IEC1010-1, IEC1010-2-032, Pollution Class 2, CAT Ⅲ(600V), IEC61326(EMC standard) |
| Accessories | Host: 1 PCS, Flexible Coil: 1 PCS, Instrument bag: 1 PCS, RS232 Com-cable:1 PCS; Software Disk: 1 PCS,Batteries:LR06：4pcs |
Host: 1 PCS, Flexible Coil: 1 PCS, Instrument bag: 1 PCS, RS232 Com-cable:1 PCS; Software Disk: 1 PCS,Batteries:LR06：4pcs