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Summary of Contents for MEWOI MEWOI-HLY200A
- Page 1 Contact Resistance Tester MEWOI-HLY200A User manual www.mewoi.com...
- Page 3 warning To prevent electric shock、human injuries, please read below information carefully before using this instrument: Only qualified person can operate this instrument Please don’t use the instrument in wet environment To prevent damage to this product or other product connect to this product, or other possible danger, please use this product within specified range.
- Page 4 Note to keep ventilated smooth of instrument vents, please don’t block air vents, and avoid affecting cooling. Please only use the spare fuse which was specified in this manual During test, please don’t turn on or turn off the power frequently, avoid damaging the instrument or reducing the accuracy of test results.
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Page 5: Table Of Contents
CONTENT Ⅰ、Summary ..................4 Ⅱ、Safty precautions ................4 Ⅲ、Performance features ..............5 Ⅳ、Technical specification ..............6 Ⅴ、Operation and function introduction ..........7 Ⅵ、Testing and operation method ............8 Appendix 1：contact (loop) resistance basic knowledge .... 14 Appendix 2：circuit breaker conductive contact(loop) resistance Standard reference value .............. -
Page 6: Ⅰ、Summary
Ⅰ、Summary The good or bad of conductivity of breaker(hereinafter referred to as switch) conductive circuit, play an important role in guarantee the safety operation of switch. The conductivity performance can be reflected by the value of conductive circuit resistance. For this reason IEC standard and manufacturers all required testing the circuit resistance, and also have prescribed index for the circuit resistance of each kind switch. -
Page 7: Ⅲ、Performance Features
instrument. 3、The adjustment and maintenance of the instrument must be done by specialized persons, don’t fix by yourself. 4、The instrument should avoid strenuous vibration, avoid heat and direct sunlight. 5、This instrument was designed to test purely resistive circuits, can not use to test inductive circuits. 6、Can’t dismantle test wire during test. -
Page 8: Ⅳ、Technical Specification
circuit; the instrument is reliable and steady. 6、Easy and simple operation, light weight. 、Technical specification: Ⅳ 1、 Test Current ： Model Test Current HLY100A 50A、100A HLY200A 100A、200A 2、 Testing range： Model Test Current Testing Range HLY100A 100A 1-1999.9μΩ 100A HLY200A 200A 3、Minimum resolution ：0.01μΩ... -
Page 9: Ⅴ、Operation And Function Introduction
model weight HLY100A 5 Kg HLY200A 6 Kg Instrument operation and function introduction Ⅴ、 Contact resistance tester panel as shown in picture 1: 1、Power： Power socket and switch have fuse box and filter inside, it’s the component to control and protect and filtering the power of the instrument. -
Page 10: Ⅵ、Testing And Operation Method
Picture 1 Contact resistance tester panel 、Testing and operation method Ⅵ 1、 Connection method: as shown in picture 2,put the specified wire red to red, black to black, the thick current wire connect to I+、I- terminal and tighten, the thin voltage wire connect to the U+、U- terminal and tighten, the two clamp clamped to both ends of the testing product. - Page 11 Picture 2 testing connection chart Note: the connection surface of the clamp should contact the product reliably. 2、Start-up interface: turn on the power switch, the display will show the interface shown in picture 3,after few seconds will automatic skip into the main interface. Picture 3: start-up interface picture 4: keyboard...
- Page 12 3、Main interface: the main interface shown as picture 5. Press choose function , press key OK enter function menu. Picture 5: main interface 4．Test: after choose START TEST in main interface, go into the interface of current selection as picture 6, press key choose current, please refer to corresponding measuring range, choose the right current.
- Page 13 Picture 6 : interface Picture 7 5． Data query: after choose DATA QUERY in main interface, go into query interface as picture 8. Press key choose function ,press key ESC go back to main interface,press key OK execute the selected function. Previous Next ：...
- Page 14 When the data is full, there is a reminder “storage is full”. Please press key RST go back to main interface. picture 8 6．Clock calibration: after choose CLOCK CALIBRATION in main interface, go into the clock calibration interface. Key use to change the value of selected position . Press key OK, cursor move right, when move to the last position “second”, press key OK again, the modified time will be saved.
- Page 15 position“year”, presses key OK again, the modified time will not be saved. 7．Manufacturer setting: this option is for manufacturer to debugging and setting, customer please doesn’t operate. 8．Reset: after finish testing, press key RST, the instrument output current will cut off, and the displayer will go back to initial state, and can rewiring, execute the next measurement or removal the test wire and power wire and finish testing.
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Page 16: Appendix 1：Contact (Loop) Resistance Basic Knowledge
： Appendix 1 Contact resistance basic knowledge 1、What is contact resistance? Contact resistance is the additional resistance when the static contact touch dynamic contact. 2、Breaker contact resistance was made up of which part? Was made up of contract resistance and surface resistance of dynamic、static contact area. 3、Unqualified reasons of breaker contact resistance? —... -
Page 17: Standard Reference Value
： Appendix 2 Breaker conductive contact resistance reference value loop resistance of loop resistance of model model each phase each phase SN1-10 <95 DW1-60G SN2-10G SW1-110 SN4-10 50—60 SW2-110I SN4-20 50—60 SW3-110 SN4-10G SW4-110 SN4-20G SW6-110 180—220 SN5-10 SW2-220 SN6-10 SW4-220 SN10-35 <75... -
Page 18: Ⅶ、Standard Configuration
、Standard configuration Ⅶ mainframe One piece specified test cable One set power wire One piece fuse Two piece After-sales service 1. Our company gives one year warranty for sold product. If user wants maintenance please contact our after-sales department. 2. During warranty period if happen any following situation, we will charge a cost price for maintenance: 1）... - Page 19 esting pecialist...
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