Mewoi Company

MEWOI3100B+ Clamp Earth Resistance Tester is widely applied in ground resistance measurement, loop resistance measurement in fields such as electric power, telecommunications, meteorology, oil field, architecture and industrial electrical equipment, etc. When measuring ground system with loop, there is no need to disconnect the ground wire without auxiliary electrode, which means safer and faster. MEWOI3100B+ Clamp Earth Resistance Tester can measure the ground fault which can not be measured by traditional method, can apply in the occasion where traditional methods are unworkable; MEWOI3100B+ Clamp Earth Resistance Tester measures the integrated value of ground resistance and resistance lead.
Main Features 1Measuring Range0.01-200Ω2Stored Data99 sets3Clamp Size32mm4Power Consumption:Maximum 50mA
Model No.: MEWOI3100B+
Name: MEWOI3100B+-0.01Ω-200Ω Earth Resistance Clamp meter/tester

Main Features 1.Measuring Range0.01-1200
2.Stored Data99 sets
3.Clamp Size64mm*32mm
4.Power Consumption:Maximum 50mA
5.Current range:0.00mA-20.0A
Model No.: MEWOI3000D+
Name: MEWOI3000D+-0.01-1200/0.00mA-20.0A Clamp on Earth Resistance Tester/Meter,earth ground tester,GEO Tester
Low Battery Indication: Low battery symbol displays when battery is lower then 5.3VPower Consumption
Power consumption:Max 50mA either in booting up or normally working, Continuously working for 30 hours

Main Features: 1,Equipotential bonding resistance Test,2,low value resistance test, 3,DC
resistance test
Model No:MEWOI4700
Name: MEWOI4700 Equipotential&DC low resistance testerMain
Function:Test of equipotential bonding resistance between functional metal components,
low value resistance test, DC resistance test, resistance test of connecting
conductor in ground network ground pole, contact resistance, riveting
resistance test, wire length test, etc.
Test Wires:2 red and 2 black wires, each 5m

Main FeatureS: small DC leakage current measurement
Model No.: MEWOI-DRSL(DC)2000mA
Name: MEWOI-DRSL(DC)-2000mA Leakage current sensor
Diameter: Ï?33mm
Rated input Current (IPN)50 100 500 1000 2000 mA(DC)
Primary Current Measure range(IP) :0100 0150 0600 01200 02200mA
Rated output voltage of secondary side DC ±5V 4-20mA 0-20m
Power Supply Voltage �VCC� DC ±12V15V
Current consumption

Min Fetures: DC lekge current mesurement
Model No.::MEWOI-DRST-200m(DC)
Nme: MEWOI-DRST-200m(DC) Split Core Lekge current sensor
Dimeter:Ï?19mm
Rted input Current (IPN)102050100200m(DC)
Primry Current Mesure rnge(IP)0-±200-±500-±1000-±2000-±300m
Rted output voltge of secondry sideDC ±5V, 4-20m, 0-20m (±1%)V
Power Supply Voltge (VCC)DC ±12V-±15V (±5%)V
Current consumption

Main Features: 1. Measuring scope:AC 0.00Aï½?20KA(50/60Hz)
2. Accuracy:AC 0.01A
3.Clamp mouth: Φ300mm4. LCD display, Data Storage
4.200sets
5.Data upload: RS232 interface
6.Working Time:100hours
Model No.: MEWOI9000G
Name: MEWOI9000G Flexible Coil Leakage Current Monitoring
Recorder/Logger
Rated Power: about 5mA at the power-saving mode, maximum current consumption:
20mA
Functions: Field-line testing, monitoring, recording AC leakage current and Large current
Lead Length:2m

Main Features: 1. Measuring scope:AC 0.00A-6000A(50/60Hz)
2.Accuracy:AC 0.01A
3. Clamp mouth: 200mm
4. LCD display:44mm*27mm, Data Storage:4200sets
5.Data upload: RS232 interface6.Working Time:100hours
Model No.:MEWOI9000GB
Name: MEWOI9000GB Flexible Coil Leakage Current Monitoring Recorder/Logger
Host Dimension :W*L*H75mm*170mm*30mm
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

MEWOI9000GB flexible high current clamp / logger is specially designed for field-line testing, monitoring, recording AC leakage current and Large current, It consists of host, flexible current clamps, monitoring software, communication lines and other components. Widely used in electric power, telecommunications, meteorology, railroad, oilfield, construction, measurement, research and teaching departments, industrial and mining enterprises and other fields. Particularly suitable for cable-intensive places, the wall transformer core grounding current test, thick wire cable test, relay protection , frequency conversion, semiconductor switches, electronic power conversion equipment, arc welding and other serious signal distortion current testing industrial environments.

Main Features 1.Small size, low cost 2.High secondary turns 3.Secure locking hinge
Model No: MEWOI-CT10,16,24,36,50
Name: MEWOI-CT10,16,24,36,50 Split Core Current Sensor/Transformer

Rated Current:5A to 600A loads
Rated output:0.333Vac
Current Ratio:3000:1
Insulation Voltage:600Vac
Maximum Primary Voltage:5000Vac(Insulated Conductor)
Operating Temperature:-15 to 60
Frequency Range:50-400Hz
Leads:4Foot (105cm), UL 1015, Twisted Pair,0.34mm2(22AWG)
Output and leads:can be customized
Application 1.Sub-Metering Accurate Measurement
2.Data Loggers to analyze Building & Machinery Performance
3.Digital Fault Recorders
4.Smart Grid Application Features Load Center
5.Three Phase Balance Control
6.In-Factory Display In-Home Display
7.Inverters for Solar & Wind Turbine Systems
8.Power Measurement Device For PLC

Main FeaturesAC/DC Current Sensor
Model No.: MEWOI-DRK1D
Name: MEWOI-DRK1D-50-500A AC/DC Ï?20mm Open-loop Hall current
Sensor
Jaw Size21mm

Rated input Current IPN50 100 200 300 400 500 A

Primary Current Measure range(IP)0~±100 0~±200 0~±400 0~±600 0~±800
0~±800 A
Rated output voltage of secondary side2.5±1.25 ±1% V
Power Supply Voltage VCCDC +5V ±5% V
Current consumptionVCC=+5V 10 mA

Galvanic isolation (Vd) 2.5KV /50Hz/1min