HVTest HTZZ-2A Скачать руководство пользователя

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V. Panel Layout

Picture 1 panel layout

1. resistance range select

2. resistance

3. Tem/current

4 .Tem sensor

5.Tem/current select

6. test line jack

7 .working status

8 .start/stop

9 .power switch

10 .power indicator

11. 220V plug

12. ground

VI. Working Principle

There is a constant current source in the instrument that can

supply DC current. When measuring resistance, constant current

be fed into the tested object from terminals I +, I-, then which will

yield voltage in the tested object, the value of that voltage retake to

Содержание HTZZ-2A

Страница 1: ...anual You can find the changes in the appendix Sorry for the inconvenience If you have further questions welcome to contact with our service department The input output terminals and the test column m...

Страница 2: ...r relevant subassembly to damage In order to avoid possible danger this product can only be used within the prescribed scope Only qualified technician can carry out maintenance or repair work To avoid...

Страница 3: ...uire information about the ratings Do Not Operate without Covers Do not operate this product when covers or panels removed Use Proper Fuse Only use the fuse with type and rating specified for the prod...

Страница 4: ...Security Terms Warning indicates that death or severe personal injury may result if proper precautions are not taken Caution indicates that property damage may result if proper precautions are not tak...

Страница 5: ...Contents I Overview 6 II Application 7 III Performance characteristics 7 IV Specifications 8 V Panel Layout 10 VI Working Principle 10 VII Operation Methods 11 VIII Problems and Solutions 14 IX Notes...

Страница 6: ...In order to change the above situation our company has developed this product This instrument is a high precision regeneration product used to replace DC single double bridge Equipped with advanced sw...

Страница 7: ...d cable resistance welded joint resistance of power transformers large motors and instrument transformers III Performance characteristics 1 Fast test The maximum output charge current of the instrumen...

Страница 8: ...ccuracy but also makes the instrument have good repeatability 3 Wide measurement range resistance measurement range 1 20K wide range 4 AC and DC power supply Attached rechargeable battery the instrume...

Страница 9: ...Resolution 1 5 Constant current source 2A 1 20m 20 m 200m 0 2 2 200mA 2 20 10mA 20 200 1mA 200 2k 100uA 2k 20k 6 Working Voltage DC 12V 16 8V AC 220V 7 Power Dissipation 15W 8 Dimension 365 330 180mm...

Страница 10: ...tatus 8 start stop 9 power switch 10 power indicator 11 220V plug 12 ground VI Working Principle There is a constant current source in the instrument that can supply DC current When measuring resistan...

Страница 11: ...pply test Closed power switch power indicator will light Press start stop buttons then select appropriate resistance gear switch to do the test Finished testing press start stop button discharge indic...

Страница 12: ...tery is charging If rechargeable battery s power is sufficient full indicator will light When using AC power to test the instrument also can charge up the battery Instrument equipped with charging pro...

Страница 13: ...n in LCD is the measured resistance value When reading resistance value please pay attention to the unit of selected range m k Measuring large inductance such as power transformer you d better keep th...

Страница 14: ...d not press Start Stop key IX Notes 1 After testing please charge the battery in time 2 During DC test if the undervoltage indicator light became bright please use AC power instead of DC power for tes...