CN201926715U - Digital insulation resistance testing instrument - Google Patents
Digital insulation resistance testing instrument Download PDFInfo
- Publication number
- CN201926715U CN201926715U CN2010206156858U CN201020615685U CN201926715U CN 201926715 U CN201926715 U CN 201926715U CN 2010206156858 U CN2010206156858 U CN 2010206156858U CN 201020615685 U CN201020615685 U CN 201020615685U CN 201926715 U CN201926715 U CN 201926715U
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- insulation resistance
- module
- resistance testing
- digital
- utility
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Abstract
The utility model belongs to the field of a resistance testing device, and particularly relates to a digital insulation resistance testing instrument. In the conventional measurement method, the range of an insulation resistance testing voltage is narrower, continuous measurement is not available, and a tested object can not discharge automatically after the measurement is completed. In order to overcome the defects in the prior art, the utility model has the technical scheme that a main CPU (central processing unit) of the digital insulation resistance testing instrument is respectively connected with an A/D (Analog to Digital) conversion module, a power supply module, a leakage current testing module, a storage, a high voltage generator and a high voltage testing module, and the A/D conversion module is connected with a testing port. The utility model has a wide-range insulation resistance test voltage, the tested object can discharge automatically after the measurement is completed, continuous measurement and data storage can be realized, and the operation of the digital insulation resistance testing instrument is simple and clear.
Description
Technical field
The utility model belongs to resistance test device field, relates in particular to a kind of digital Insulation Resistance Tester.
Background technology
In order to test various insulation resistance resistance, and measure ac/dc voltage and frequency, traditional measurement method megger test voltage range is narrower, can't continuous coverage, and measure finish after tested object can't discharge automatically.
The utility model content
In order to overcome defective of the prior art, the purpose of this utility model provides a kind of wide region megger test voltage, measures and finish the digital Insulation Resistance Tester that the tested object in back can discharge automatically and can realize the continuity measurement.
To achieve these goals, the technical scheme taked of the utility model is:
A kind of digital Insulation Resistance Tester, comprise: host CPU, A/D modular converter, power module, leakage current test module, storer, high pressure generator, Hi-pot test module, keyboard, LCD MODULE and test port, its special character is: described host CPU is connected with LCD MODULE with A/D modular converter, power module, leakage current test module, storer, high pressure generator, Hi-pot test module, keyboard respectively, and described A/D modular converter is connected with test port.
The model of above-mentioned single-chip microcomputer is: 68H11.
A kind of test implementation method of utilizing above-mentioned digital Insulation Resistance Tester may further comprise the steps:
1) beginning,
2) start initialization,
3) button detects, if, then launch high-voltage signal, if otherwise returned for the 3rd step,
4) emission high-voltage signal,
5) detect electric current,,
6) data processing,
7) whether data are correct, if, then enter next step, if not, then returned for the 4th step,
8) show measurement result, returned for the 3rd step then.
With respect to prior art, the utility model has the advantages that:
(1) wide region megger test voltage (50 to 1000V direct current).
(2) tested object discharged automatically after measurement was finished.
(3) the automatic test voltage reversal in " continuity ± 200mA " function.
(4) be used for " continuity 7mA " function of inductive measurand.
(5) can store data.
(6) LCD can show the result who is easy to read, and is simple to operate clear.
Description of drawings
Fig. 1 circuit theory wiring diagram,
Fig. 2 program flow diagram,
Fig. 3 is a circuit connection diagram of the present utility model.
Embodiment
Below in conjunction with Figure of description and specific embodiment the utility model is further specified.
Referring to Fig. 1, host CPU, A/D modular converter, power module, leakage current test module, storer, high pressure generator, Hi-pot test module, keyboard, LCD MODULE and test port, it is characterized in that: described host CPU is connected with LCD MODULE with A/D modular converter, power module, leakage current test module, storer, high pressure generator, Hi-pot test module, keyboard respectively, described A/D modular converter is connected with test port, and the model of described host CPU is: 68H11.
Referring to Fig. 2, utilize the test implementation method of described digital Insulation Resistance Tester, may further comprise the steps:
1) beginning,
2) start initialization,
3) button detects, if, then launch high-voltage signal, if otherwise returned for the 3rd step,
4) emission high-voltage signal,
5) detect electric current,,
6) data processing,
7) whether data are correct, if, then enter next step, if not, then returned for the 4th step,
8) show measurement result, returned for the 3rd step then.
Claims (2)
1. digital Insulation Resistance Tester, comprise: host CPU, A/D modular converter, power module, leakage current test module, storer, high pressure generator, Hi-pot test module, keyboard, LCD MODULE and test port, it is characterized in that: described host CPU is connected with LCD MODULE with A/D modular converter, power module, leakage current test module, storer, high pressure generator, Hi-pot test module, keyboard respectively, and described A/D modular converter is connected with test port.
2. according to the described digital Insulation Resistance Tester of claim 1, it is characterized in that: the model of described host CPU is: 68H11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206156858U CN201926715U (en) | 2010-11-20 | 2010-11-20 | Digital insulation resistance testing instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206156858U CN201926715U (en) | 2010-11-20 | 2010-11-20 | Digital insulation resistance testing instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201926715U true CN201926715U (en) | 2011-08-10 |
Family
ID=44430559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206156858U Expired - Fee Related CN201926715U (en) | 2010-11-20 | 2010-11-20 | Digital insulation resistance testing instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201926715U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104793058A (en) * | 2012-08-13 | 2015-07-22 | 伍俊 | High-voltage insulating resistance monitoring alarm device and working method thereof |
-
2010
- 2010-11-20 CN CN2010206156858U patent/CN201926715U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104793058A (en) * | 2012-08-13 | 2015-07-22 | 伍俊 | High-voltage insulating resistance monitoring alarm device and working method thereof |
| CN104793058B (en) * | 2012-08-13 | 2017-06-06 | 伍俊 | High-voltage insulating resistance monitoring alarm instrument and its method of work |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20131120 |