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INTRODUCTION
MEWOI-YHZ1010(10A)DC Resistance Tester is controlled by the microcontroller, with a high degree of automation, automatic discharge functions. It is a test instrument of high precision, simple, direct way to achieve fast transformer measurement. The DC resistance is necessary test project of transformer's semi-finished product, finished product test, installation, commissioning test, and electric part prevention, the transformer coil can effectively find the device welding, connecting parts loose, missing unit, disconnection,other manufacturing default and other hidden danger occurred after operation. MEWOI-YHZ1010(10A)DC Resistance Tester is a new powerful technology product which is insmall size, light weight, high output current and lots of other characteristics. |
MAIN FEATURES
| 1,Whole instrument controlled by high speed SCM, high automatic degree and simple operation. |
| 2,This transformer tester uses advanced power technology, has multiple current positions, and has a wide test range, which is suitable for testing the DC resistance of large and medium-sized transformers. |
| 3,Has a complete circuit protection, reliable. |
| 4,Discharge alarm, discharge indicator clear, reduces misuse. |
| 5,The transformer tester has a fast response speed and can be directly converted in o a load tap changer under the measurement state, and the instrument automatically refreshes the data. |
| 6,Intelligent power management technology, instrument is always working at minimum power state, effective energy saving, reduce heat. |
| 7,320 x240 matrix of ultra small pixel 65Ktrue color LCD. |
| 8,With calendar clock and power storage, can store 1000 groups data, can be check at any time. |
| 9,9.With RS232 and USB interface, computer communications and U disk storage. |
SPECIFICATION
| Output current | <20mA、40mA、200mA、 1A、 5A、 10A |
| Resolution | 0.1uΩ |
| Accuracy | 1. +(0.2%+2 Readings) |
| Operating temperature | 1.0~40°C |
| Ambient humidity | ≤90%RH，(non condensed) |
| size | 1.360*290*170 mm. |
| Instrument weight | 1.12kg |
| Range | 0.5mΩ~ 0.82Ω(10A) |
| 1mΩ-2Ω(5A) | |
| 5mΩ-10Ω(1A) | |
| 100mΩ-50Ω(200mA) | |
| 1Ω-250Ω(40mA) | |
| 100Ω-20KΩ(<20mA) |
SELECTION GUIDE
| Model No. | Measure Current | Constant current source | Resolution/Accuracy | Working Voltage | Power consumption | Others |
| 1A | 1A（1μΩ～20mΩ、20mΩ～200mΩ、0.2Ω～2Ω）；100mA(2Ω～20Ω)；5mA（20Ω～200Ω）；500uA（200Ω～2kΩ）；50uA（2kΩ～20kΩ）。 | 1uΩ, ±(0.2%+2d) | DC：12V～16.8V；or AC：220V | ≤15W | - |
| 2A | 2A(1μΩ～20mΩ、20mΩ～200mΩ、0.2Ω～2Ω)； 200mA(2Ω～20Ω)； 10mA(20Ω～200Ω)； 1mA(200Ω～2kΩ)；100uA(2kΩ～20kΩ)。 | 1uΩ, ±(0.2%+2d) | DC：12V～16.8V；or AC：220V | ≤15W | - |
| 3A | 3A（1μΩ～20mΩ、20mΩ～200mΩ、0.2Ω～2Ω）； 300mA(2Ω～20Ω)； 15mA（20Ω～200Ω）； 1.5mA(200Ω～2kΩ)；200Ω～2kΩ。 | 1uΩ, ±(0.2%+2d) | DC：12V～16.8V；or AC：220V | ≤15W | - |
| 5A | 5A(20mΩ～2Ω), 0.5A(20Ω)； 0.05A(200Ω)； 0.005A(2000Ω) | 0.1uΩ, ±(0.5%+2d) | Rechargeable battery or AC220V 50HZ (±10%) | ≤100W | Printer |
| 10A | 0.5mΩ~ 0.82Ω(10A) 1mΩ-2Ω(5A) 5mΩ-10Ω(1A) 100mΩ-50Ω(200mA) 1Ω-250Ω(40mA) 100Ω-20KΩ(<20mA) | 0.1uΩ, ±(0.2%+2d) | Rechargeable battery or AC220V 50HZ (±10%) | Printer/RS232/USB | |
| 20A | 1A (10mΩ~20Ω) 5A (1mΩ~4Ω)) 10A (1mΩ~2Ω) 20A (1mΩ~1Ω) | 0.1uΩ, ±(0.2%+2d) | AC 220V±22V,50Hz±2Hz Remark:Fuse 5A | ≤300W, Remark: Test current 10A | Data:255sets, Printer |
| 40A | 2.5A（10mΩ～20Ω), 5A（1mΩ～4Ω）； 10A（1mΩ～2Ω）； 20A（1mΩ～1Ω）； 40A（1mΩ～500mΩ） | 0.1uΩ, ±(0.2%+2d) | AC 220V±22V,50Hz±2Hz Remark:Fuse 10A | ≤1200W, Remark: Test current 10A | Data:255sets, Printer |
| 50A | 2.5A（10mΩ～8Ω) 5A（1mΩ～4Ω） 10A（1mΩ～2Ω） 20A（1mΩ～1Ω） 50A（1mΩ～500mΩ） | 0.1uΩ, ±(0.2%+2d) | AC 220V±22V,50Hz±2Hz Remark:Fuse 10A | ≤1500W, Remark: Test current 10A | Data:255sets, Printer |
| 100A | 10A（500μΩ～2Ω）, 20A（200μΩ～1Ω）； 40A（100μΩ～500mΩ）； 100A（10μΩ～100mΩ） | 0.1uΩ, ±(0.2%+2d) | AC 220V±22V,50Hz±2Hz Remark:Fuse 10A | Printer |
