CN202141795U - Loop prover - Google Patents
Loop prover Download PDFInfo
- Publication number
- CN202141795U CN202141795U CN201020605298U CN201020605298U CN202141795U CN 202141795 U CN202141795 U CN 202141795U CN 201020605298 U CN201020605298 U CN 201020605298U CN 201020605298 U CN201020605298 U CN 201020605298U CN 202141795 U CN202141795 U CN 202141795U
- Authority
- CN
- China
- Prior art keywords
- prover
- loop
- button
- battery cover
- charging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to a loop prover, characterized by comprising a display screen, an output signal size adjusting turn cap, and several function buttons which are arranged upon the housing, wherein the function buttons comprise a power supply button, a backlight switch button, a model switching button, a stepping button, an automatic slope current output button, and a measuring range spacing inspection button. The loop prover further comprises a charging device in charge of the loop prover charging. As the loop prover is provided with a charging device, the loop prover can be conveniently charged when the battery electric quantity is run out.
Description
Technical field
The utility model relates to a kind of loop prover.
Background technology
Loop prover (Loop Calibrator) is a kind of hand-held, makes battery-powered process checking gauge table, can be used for measuring and exporting multiple signal, is mainly used in the measurement and the calibration of industry spot and laboratory signal.In the industry spot; The information that the sensor impression is to be detected; By the rule conversion and export various electric signal; For example DC current, voltage, frequency etc., transmitter can be converted into unified standard signal afterwards: 0/4-20mA DC, 0-24VDC, these standard signals are shown as readable digital parameters through secondary instrument again.Therefore; The process prover need have output DC stream voltage signal function; Detecting or calibrate secondary instrument with analog transmitter, is high precision, high resolving power, high reliability that integrates digital display type DC voltage, current signal source and digimer and the handheld digital calibrated meter with dropproof performance.Prover can be exported 0-24 milliampere or simulation two-wire system transducer output 0-24 milliampere electric current, the loop current of test 0-20 milliampere or 4-20 milliampere, measuring DC voltage 0-28 volt in the source.
The loop prover can be replaced the power supply in the current return temporarily.Through the prover Control current time, can between 4mA and 20mA, accurately set electric current, so just can control loop and the equipment that is attached thereto.
Summary of the invention
The purpose of the utility model provides a kind of loop prover with charge function.
For solving the problems of the technologies described above, the utility model is taked following technical scheme: a kind of loop prover is characterized in that: comprise the display screen, output signal magnitude adjusting turncap and the function button that are arranged on the housing; Said function button comprises power button, backlight switch key, mode switch button, step button, self-acting slope electric current output button and span review button; Said loop prover also comprises the charging device to the charging of said loop prover.
Further, said loop prover also has battery cover, and said battery cover is fixed to the rear portion of said shell through screw.
Further, said battery cover is provided with a pivotable support, and a side of said support is provided with recess.
Because said loop prover has charging device, therefore, can when battery electric quantity exhausts, can charge easily.
Description of drawings
Fig. 1 is the front view of the loop prover in the utility model.
Fig. 2 is the rear view of the loop prover in the utility model.
Embodiment
Be elaborated below in conjunction with the technical scheme of accompanying drawing to the utility model.
Fig. 1-2 shows the structural representation of the loop prover described in the utility model.Shown in Fig. 1-2, said loop prover comprises housing 1, display screen 2, resolution adjustment button 9 and function button.
Said function button comprises power button 3, backlight switch key 8, mode switch button 5, step button 4, self-acting slope electric current output button 6 and span review button 7.
When said mode switch button 5 is pressed in circulation successively, carry out the switching of operator scheme, these mode of operations comprise: (1) source output milliampere shows " SOURCE mA "; (2) simulation output milliampere shows " SIMULATE mA "; (3) measure the direct current milliampere with ring current, show " Loop Power MEASURE mA "; (4) measure the direct current milliampere, show " MEASURE mA "; (5) measuring DC voltage shows " MEASURE V ".
Can increase electric current when pressing said step button 4, whenever by 25% (0-20mA/4-20mA) of stepping full scale next time; When arriving full scale, again by then reduce electric current next time, when whenever pressing next time, 25% (0-20mA/4-20mA) of stepping full scale.
Press said span review button 7 and can select the span audit function, display shows " SpanCheck ".
Said resolution adjustment button 9 is turncaps, and when pressing turncap, electric current output can be adjusted (default value is 1 μ A) according to the resolution of 1 μ A, 10 μ A, 100 μ A.Rotate turncap, electric current output increases or reduces 1 μ A/10 μ A/100 μ A.Under the situation of oblique wave form and 25% stepping automatically, change turncap, can change the size of current change direction.
Loop prover in the utility model also has charge function.Cross when low when display shows cell voltage, need charge to prover.Generally speaking, should shut down earlier during charging, use the power supply adaptor of being joined at random batteries charging.
Said loop prover has battery cover 10 and battery 11; Said battery cover 10 is fixed to the rear portion of shell 1 through screw 12; Also be provided with a support that can pivot 13 on the said battery cover 10, a side of said support 13 is provided with recess 14, so that said support 13 is pulled upwardly.
Claims (3)
1. a loop prover is characterized in that: comprise the display screen, output signal magnitude adjusting turncap and the function button that are arranged on the housing; Said function button comprises power button, backlight switch key, mode switch button, step button, self-acting slope electric current output button and span review button; Said loop prover also comprises the charging device to the charging of said loop prover.
2. loop as claimed in claim 1 prover is characterized in that: said loop prover also has battery cover, and said battery cover is fixed to the rear portion of said shell through screw.
3. loop as claimed in claim 2 prover is characterized in that: said battery cover is provided with a pivotable support, and a side of said support is provided with recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020605298U CN202141795U (en) | 2010-11-12 | 2010-11-12 | Loop prover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020605298U CN202141795U (en) | 2010-11-12 | 2010-11-12 | Loop prover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202141795U true CN202141795U (en) | 2012-02-08 |
Family
ID=45552850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020605298U Expired - Fee Related CN202141795U (en) | 2010-11-12 | 2010-11-12 | Loop prover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202141795U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109946607A (en) * | 2019-04-03 | 2019-06-28 | 广东省计量科学研究院（华南国家计量测试中心） | A kind of calibration system and method for DC charging motor calibrating installation |
| CN110133337A (en) * | 2019-05-16 | 2019-08-16 | 中国一冶集团有限公司 | A kind of signal imitation device and adjustment method for instrument debugging |
-
2010
- 2010-11-12 CN CN201020605298U patent/CN202141795U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109946607A (en) * | 2019-04-03 | 2019-06-28 | 广东省计量科学研究院（华南国家计量测试中心） | A kind of calibration system and method for DC charging motor calibrating installation |
| CN109946607B (en) * | 2019-04-03 | 2021-07-27 | 广东省计量科学研究院（华南国家计量测试中心） | Calibration system and method for direct current charger calibration device |
| CN110133337A (en) * | 2019-05-16 | 2019-08-16 | 中国一冶集团有限公司 | A kind of signal imitation device and adjustment method for instrument debugging |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120208 Termination date: 20141112 |
|
| EXPY | Termination of patent right or utility model |