CN102707711A - Device for debugging actuator by using digital multimeter - Google Patents
Device for debugging actuator by using digital multimeter Download PDFInfo
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- CN102707711A CN102707711A CN2012101818916A CN201210181891A CN102707711A CN 102707711 A CN102707711 A CN 102707711A CN 2012101818916 A CN2012101818916 A CN 2012101818916A CN 201210181891 A CN201210181891 A CN 201210181891A CN 102707711 A CN102707711 A CN 102707711A
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- digital multimeter
- actuator
- multimeter
- controller
- debugging
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Abstract
The invention discloses a device for debugging an actuator by using a digital multimeter and relates to the technical field of a control system. The device comprises the digital multimeter, a control chamber and the actuator; a controller in the control chamber is connected with the actuator and the digital multimeter; the device is characterized in that a probe of the digital multimeter is disconnected and is in series connection with an adjustable resistor R; the digital multimeter is regulated to a current range, that is, at a position of 200mA; a corresponding output point of a DCS (Distributed Control System) or the controller in the control chamber is output to 100 percent, that is, the constant current of 20 mA is output to the actuator; positive and negative probes of the digital multimeter are correctly connected in parallel on wiring terminals of the actuator, and the current running through the digital multimeter is 0-20 mA by regulating a crude regulation switch K and a fine adjustable resistor R. According to the device for debugging the actuator by using the digital multimeter disclosed by the invention, the digital multimeter is changed slightly, the actuator is tuned conveniently and rapidly for a long time on the premise of not influencing the original functions; a signal generator with the value of near ten thousands RMB is replaced by a multimeter with the value of several hundred RMB, so that the low cost and the convenience and reliability in use are achieved.
Description
Technical field
The present invention relates to the control system technical field, be specifically related to a kind ofly debug actuator apparatus with digital multimeter.
Background technology
Actuator is an important component part in the automatic control system, and its effect is to receive the signal that controller is sent here, changes the flow of controlled medium, thereby controlled variable is maintained in desired numerical value or the certain scope.4～20mA DC signal of control system (DCS etc.) output both can be controlled YE, also can convert the standard pressure signal to through electric pneumatic converter or electricity-gas valve positioner and control pneumatic actuator.Actuator is used comparatively extensive in Chemical Manufacture, because actuator directly contacts with controlled medium and long-term use continuously, can break down unavoidably needs maintenance.After maintenance in order to make it guarantee that control accuracy will adjust zero point, full scale and the linearity of actuator.At this moment need send 4～20mA DC standard signal respectively to actuator.Because inconvenience is generally far got in touch apart from the production scene in the pulpit, routine is sent 4～20mA DC signal with process checking gauge or standard adjustable constant-flow source and is come adjustment.But these instruments cost an arm and a leg, and because the finite capacity of supplying cell just needed charging in general 2～3 hours or changed battery, use extremely inconvenient.
Summary of the invention
It is a kind of simple in structure that technical matters to be solved by this invention is to provide, and safe and reliable debugs actuator apparatus with digital multimeter.
Technical matters to be solved by this invention adopts following technical scheme to realize:
A kind ofly debug actuator apparatus with digital multimeter; Comprise digital multimeter, pulpit and actuator; Controller in the said pulpit is connected with actuator and digital multimeter, it is characterized in that: a test pencil of described digital multimeter is broken off through K switch, and an adjustable resistance R connects in the centre; Transfer current gear to use said digital multimeter; Be the 200mA retaining, the DCS or the controller of said pulpit are transferred corresponding output point to 100%, promptly export the 20mA constant current to actuator; The test pencil of described digital multimeter is divided on the positive and negative connection terminal that is connected in parallel on actuator, can make and flow through the digital multimeter electric current at 0～20mA through regulating coarse adjustment K switch and fine tuning adjustable resistance R.
Described K switch is a single pole multiple throw.
The invention has the beneficial effects as follows: the present invention only needs digital multimeter is changed a little; Can be conveniently under the prerequisite that does not influence its original function long-time adjustment actuator; With the alternative signal generator that is worth about ten thousand yuan of the multimeter of hundreds of unit, cost is low, and is easy to use and reliable.
Description of drawings
Fig. 1 is a systematic schematic diagram of the present invention.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand, below in conjunction with concrete diagram, further set forth the present invention.
As shown in Figure 1, a kind ofly debug actuator apparatus with digital multimeter, comprise digital multimeter, pulpit and actuator; Controller in the said pulpit is connected with actuator and digital multimeter; It is characterized in that: a test pencil of described digital multimeter is broken off through K switch, and the adjustable resistance R that connects in the centre transfers current gear to use said digital multimeter; It is the 200mA retaining; The DCS or the controller of said pulpit are transferred corresponding output point to 100%, promptly export the 20mA constant current to actuator, the test pencil of described digital multimeter is divided on the positive and negative connection terminal that is connected in parallel on actuator; Can make and flow through the digital multimeter electric current through regulating coarse adjustment K switch and fine tuning adjustable resistance R, flow through the electric current I of actuator (actuator is certain resistance coil) at 0～20mA
0With the electric current I that flows through digital multimeter
1Relation is:
I
0＋I
1＝20mA
Can get thus: I
0=20-I
1(mA)
That is: I
0Adjustable between 0～20mA, thus zero point, full scale and the linearity that can debug actuator easily.
Wherein digital multimeter is provided with 1,2,3,4,5 gear altogether, and when K switch was thrown 5 grades and adjustable resistance and is zero, digital multimeter was recovered original function.
The optional single pole multiple throw of K switch, actuator resistance are R
0(generally being 400 Ω) be R then
1, R
2, R
3Be respectively 1 * R
0, 2 * R
0, 3 * R
0, adjustable resistance R selects 0～R, can all elements can be encapsulated in the organic glass capsule, and is safe and reliable.
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the instructions just explains principle of the present invention; Under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various changes and modifications, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (2)
1. debug actuator apparatus with digital multimeter for one kind; Comprise digital multimeter, pulpit and actuator; Controller in the said pulpit is connected with actuator and digital multimeter, it is characterized in that: a test pencil of described digital multimeter is broken off the adjustable resistance (R) of connecting in the centre through K switch; Transfer current gear to use said digital multimeter; Be the 200mA retaining, the controller of said pulpit is transferred corresponding output point to 100%, promptly export the 20mA constant current to actuator; The test pencil of described digital multimeter is divided on the positive and negative connection terminal that is connected in parallel on actuator, can make and flow through the digital multimeter electric current at 0～20mA through regulating coarse adjustment K switch and fine tuning adjustable resistance R.
2. according to claim 1ly a kind ofly debug actuator apparatus with digital multimeter, it is characterized in that: described K switch is a single pole multiple throw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210181891.6A CN102707711B (en) | 2012-06-04 | 2012-06-04 | Device for debugging actuator by using digital multimeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210181891.6A CN102707711B (en) | 2012-06-04 | 2012-06-04 | Device for debugging actuator by using digital multimeter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102707711A true CN102707711A (en) | 2012-10-03 |
| CN102707711B CN102707711B (en) | 2014-06-18 |
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ID=46900602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210181891.6A Active CN102707711B (en) | 2012-06-04 | 2012-06-04 | Device for debugging actuator by using digital multimeter |
Country Status (1)
| Country | Link |
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| CN (1) | CN102707711B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104122011A (en) * | 2014-07-02 | 2014-10-29 | 安徽泉盛化工有限公司 | Correction signal generator of temperature instrument |
| CN107703470A (en) * | 2017-10-25 | 2018-02-16 | 广东天圣高科股份有限公司 | A kind of digital multimeter automatic debugging device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201903783U (en) * | 2010-12-02 | 2011-07-20 | 武汉诺尔曼科技有限公司 | Electrical aging device of electronic speed controller |
| CN201903596U (en) * | 2010-11-19 | 2011-07-20 | 抚顺新钢铁有限责任公司 | Electric actuator checking meter |
| CN202059157U (en) * | 2011-03-23 | 2011-11-30 | 上海梅山钢铁股份有限公司 | Detection protective device for servo control circuit with aviation plug-in |
| CN202600479U (en) * | 2012-06-04 | 2012-12-12 | 安徽泉盛化工有限公司 | Device for debugging actuator by using digital multimeter |
-
2012
- 2012-06-04 CN CN201210181891.6A patent/CN102707711B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201903596U (en) * | 2010-11-19 | 2011-07-20 | 抚顺新钢铁有限责任公司 | Electric actuator checking meter |
| CN201903783U (en) * | 2010-12-02 | 2011-07-20 | 武汉诺尔曼科技有限公司 | Electrical aging device of electronic speed controller |
| CN202059157U (en) * | 2011-03-23 | 2011-11-30 | 上海梅山钢铁股份有限公司 | Detection protective device for servo control circuit with aviation plug-in |
| CN202600479U (en) * | 2012-06-04 | 2012-12-12 | 安徽泉盛化工有限公司 | Device for debugging actuator by using digital multimeter |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104122011A (en) * | 2014-07-02 | 2014-10-29 | 安徽泉盛化工有限公司 | Correction signal generator of temperature instrument |
| CN104122011B (en) * | 2014-07-02 | 2016-12-07 | 杨玮 | Thermometric instrument checking signal generator |
| CN107703470A (en) * | 2017-10-25 | 2018-02-16 | 广东天圣高科股份有限公司 | A kind of digital multimeter automatic debugging device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102707711B (en) | 2014-06-18 |
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Owner name: YANG WEI Free format text: FORMER OWNER: ANHUI QUANSHENG CHEMICAL CO., LTD. Effective date: 20130118 |
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Effective date of registration: 20130118 Address after: 03, room 51, Building 102, Yingbin Road, town, Dingyuan County, Anhui Province, China Applicant after: Yang Wei Address before: 233290 Dingyuan County, Anhui Province town of furnace, Applicant before: Anhui Quansheng Chemical Co.,Ltd. |
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Owner name: YANG WEI Effective date: 20140521 Owner name: ANHUI QUANSHENG CHEMICAL CO., LTD. Free format text: FORMER OWNER: YANG WEI Effective date: 20140521 |
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Effective date of registration: 20140521 Address after: 233290, Dingyuan County, Anhui Province town furnace Applicant after: Anhui Quansheng Chemical Co.,Ltd. Applicant after: Yang Wei Address before: 03, room 51, Building 102, Yingbin Road, town, Dingyuan County, Anhui Province, China Applicant before: Yang Wei |