CN202600479U - Device for debugging actuator by using digital multimeter - Google Patents
Device for debugging actuator by using digital multimeter Download PDFInfo
- Publication number
- CN202600479U CN202600479U CN 201220258946 CN201220258946U CN202600479U CN 202600479 U CN202600479 U CN 202600479U CN 201220258946 CN201220258946 CN 201220258946 CN 201220258946 U CN201220258946 U CN 201220258946U CN 202600479 U CN202600479 U CN 202600479U
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- digital multimeter
- actuator
- switch
- multimeter
- digital
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Abstract
The utility model provides a device for debugging an actuator by using a digital multimeter, relating to the technical field of control systems. The device comprises the digital multimeter, a control room and the actuator, wherein a controller in the control room is connected with the actuator and the digital multimeter. The device is characterized in that one meter probe of the digital multimeter is switched off through a switch K, an adjustable resistor R is connected between the meter probe and the switch K in series, a current adjusting tap, i.e. a 200 mA tap, of the digital multimeter is used, corresponding output points of a DCS (Digital Cellular System) or the controller of the control room are adjusted to 100%, thereby outputting a constant current of 20 mA to the actuator, meter probes of the digital multimeter are parallelly connected to wiring terminals of the actuator in a positive-negative manner, and the current flowing through the digital multimeter can be of 0-20 mA through coarsely tuning the switch K and finely tuning the adjustable resistor R. The device for debugging the actuator by using the digital multimeter has the advantages that the device can conveniently and fast debug the actuator for a long time by only slightly changing the digital multimeter under the premise that the original functions of the digital multimeter are not affected, a signal generator of about 10,000 yuan is replaced with the multimeter of several hundred yuan, the cost is low, and the use is convenient and reliable.
Description
Technical field
The utility model relates to the control system technical field, is 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.
The utility model content
The utility model technical matters to be solved is to provide a kind of simple in structure, and safe and reliable debugs actuator apparatus with digital multimeter.
The utility model technical matters to be solved 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 the electric current retaining 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 beneficial effect of the utility model is: the utility model 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; Substitute the signal generator of about ten thousand yuan of value with the multimeter of hundreds of unit; Cost is low, and is easy to use and reliable.
Description of drawings
Fig. 1 is the utility model systematic schematic diagram.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.
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 the electric current retaining 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 retainings 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 utility model and the advantage of principal character and the utility model.The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the instructions that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model 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 through K switch, and an adjustable resistance R connects in the centre; Transfer the electric current retaining 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 |
|---|---|---|---|
| CN 201220258946 CN202600479U (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 |
|---|---|---|---|
| CN 201220258946 CN202600479U (en) | 2012-06-04 | 2012-06-04 | Device for debugging actuator by using digital multimeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202600479U true CN202600479U (en) | 2012-12-12 |
Family
ID=47318007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220258946 Withdrawn - After Issue CN202600479U (en) | 2012-06-04 | 2012-06-04 | Device for debugging actuator by using digital multimeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202600479U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102707711A (en) * | 2012-06-04 | 2012-10-03 | 安徽泉盛化工有限公司 | Device for debugging actuator by using digital multimeter |
| CN103624369A (en) * | 2013-11-13 | 2014-03-12 | 无锡汉神电气有限公司 | Regulating circuit of welding currents of CO2 electric arc welder |
| 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 |
-
2012
- 2012-06-04 CN CN 201220258946 patent/CN202600479U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102707711A (en) * | 2012-06-04 | 2012-10-03 | 安徽泉盛化工有限公司 | Device for debugging actuator by using digital multimeter |
| CN102707711B (en) * | 2012-06-04 | 2014-06-18 | 安徽泉盛化工有限公司 | Device for debugging actuator by using digital multimeter |
| CN103624369A (en) * | 2013-11-13 | 2014-03-12 | 无锡汉神电气有限公司 | Regulating circuit of welding currents of CO2 electric arc welder |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121212 Effective date of abandoning: 20140618 |
|
| RGAV | Abandon patent right to avoid regrant |