CN102879122A - Portable inspection device for temperature transmitter - Google Patents
Portable inspection device for temperature transmitter Download PDFInfo
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- CN102879122A CN102879122A CN2012102691819A CN201210269181A CN102879122A CN 102879122 A CN102879122 A CN 102879122A CN 2012102691819 A CN2012102691819 A CN 2012102691819A CN 201210269181 A CN201210269181 A CN 201210269181A CN 102879122 A CN102879122 A CN 102879122A
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- power supply
- temperature
- connection terminal
- switch
- temperature transmitter
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Abstract
The invention relates to a portable inspection device for a temperature transmitter, which includes a casing, a high-accuracy resistor, a selector switch, a temperature meter, a hurl-slices switch, connecting terminals and a power supply plug-in, wherein the high-accuracy resistor is connected with terminals of the selector switch respectively; the terminals of the selector switch are connected with the connecting terminal I; the hurl-slices switch is connected with the connecting terminal II; the connecting terminal II is connected with the temperature meter; and the power supply of the temperature meter is connected with an alternate current power supply through the power supply plug-in. The portable inspection device for the temperature transmitter has the advantages of small size, light weight, firmness and durability, convenience for carrying, simplicity and convenience for operation, high accuracy and the like, provides an efficient temperature transmitting equipment inspection measure for test and operation maintenance of the equipment, and has excellent use value.
Description
Technical field
The present invention relates to a kind of transmitter verifying attachment, relate in particular to a kind of Portable temperature transmitter verifying attachment.
Background technology
At present, power transformer basically all is equipped with temperature transmitter temperature signal is uploaded to background system or offers the running temperature that digital displaying meter shows transformer in the electric system.Yet testing crew or maintainer never carried out field-checking to the accuracy of the working value of the precision of temperature transmitter and warning node for a long time, and this brings certain hidden danger for the security of operation of transformer.
Summary of the invention
For overcoming the deficiencies in the prior art, the purpose of this invention is to provide a kind of Portable temperature transmitter verifying attachment, be convenient for carrying, easy and simple to handle, degree of accuracy is high.
For achieving the above object, the present invention is achieved through the following technical solutions:
A kind of Portable temperature transmitter verifying attachment, comprise housing, precision resister, change-over switch, thermometer, fling-cut switch, connection terminal, power insert, precision resister is connected with each terminal of change-over switch respectively, the terminal of change-over switch is connected with connection terminal one again, fling-cut switch is connected with connection terminal two, connection terminal two is connected with thermometer, and the thermometer power supply is by power insert incoming transport power supply.
Compared with prior art, the invention has the beneficial effects as follows:
Have volume little, lightweight, durable, be convenient for carrying, easy and simple to handle, precision advantages of higher, become the detection means of sending equipment for test, the operation maintenance of equipment provides effective temperature, have good use value.
Description of drawings
Fig. 1 is profile schematic diagram of the present invention.
Fig. 2 is panel layout of the present invention.
Fig. 3 is electrical schematic diagram of the present invention.
Among the figure: 1-change-over switch 2-connection terminal one 3-thermometer 4-fling-cut switch 5-power insert 6-connection terminal two.
Embodiment
Below in conjunction with Figure of description the present invention is described in detail, but should be noted that enforcement of the present invention is not limited to following embodiment.
See Fig. 1, Fig. 2 and Fig. 3, a kind of Portable temperature transmitter verifying attachment, comprise housing, precision resister, change-over switch 1, thermometer 3, fling-cut switch 4, connection terminal, power insert 5, precision resister is connected with change-over switch 1 each terminal respectively, the terminal of change-over switch is connected with connection terminal 1 again, fling-cut switch 4 is connected with connection terminal 26, and connection terminal 26 is connected with thermometer 3, and thermometer 3 power supplys are by power insert 5 incoming transport power supplys.
Device provides an analog temperature source by built-in standard precision resister to transmitter, comes the accuracy of verification temperature transmitter according to minute kilsyth basalt of the PT100 of standard.Device has also been installed a high accuracy number temperature display watch, the more intuitively trueness error of C.T. transmitter.Measuring resistance adopts rotation by-pass cock (change-over switch) stepping to regulate, and segmentation detects the precision of transmitter.This verifying attachment electrical equipment is by precision resister R1-R9, change-over switch SB, temperature display watch WB, fling-cut switch TA, connection terminal J1-2, the sub-C of power plug.Precision resister R1-9 is installed in the device case, and precision resister is connected with change-over switch 4 each terminal respectively, and the terminal of change-over switch 4 is connected with connection terminal 2 again, resistance can be drawn out on the lead-out terminal like this.Lead-out terminal in case with base measuring temperature table fling-cut switch TA series wiring, the power supply of thermometer 3 is introduced the alternating current 220V power supply by power insert.
See Fig. 3, temperature transmitter verifying attachment of the present invention is achieved in that the electrical equipment of this device is comprised of R1-9 precision resister, SB change-over switch 1, J1-2 connection terminal, WB thermometer 3, TA fling-cut switch 4 and c-power supply plug-in unit 5.Electric resistance welding is placed in the case on circuit board.Other elements all are installed in the device panel surface.Resistance is connected with change-over switch 1 terminal, and has the terminal of change-over switch 1 to be drawn out on the connection terminal.Connection terminal is connected with verification thermometer 3 again, and thermometer 3 power supplys are by 5 accesses of c-power supply plug-in unit.Whether the PT100 input end with tested transmitter during test is connected with the connection terminal of device, come the measuring transducer output valve correct by the size that changes resistance, and the verification thermometer can be compared to the value of temperature transmitter more intuitively.
The present invention have volume little, lightweight, durable, be convenient for carrying, easy and simple to handle, precision advantages of higher, become the detection means of sending equipment for test, the operation maintenance of equipment provides effective temperature, have good use value.
Claims (1)
1. Portable temperature transmitter verifying attachment, it is characterized in that, comprise housing, precision resister, change-over switch, thermometer, fling-cut switch, connection terminal, power insert, precision resister is connected with each terminal of change-over switch respectively, the terminal of change-over switch is connected with connection terminal one again, fling-cut switch is connected with connection terminal two, and connection terminal two is connected with thermometer, and the thermometer power supply is by power insert incoming transport power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102691819A CN102879122A (en) | 2012-07-31 | 2012-07-31 | Portable inspection device for temperature transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102691819A CN102879122A (en) | 2012-07-31 | 2012-07-31 | Portable inspection device for temperature transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102879122A true CN102879122A (en) | 2013-01-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102691819A Pending CN102879122A (en) | 2012-07-31 | 2012-07-31 | Portable inspection device for temperature transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102879122A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103984250A (en) * | 2014-04-28 | 2014-08-13 | 广东电网公司中山供电局 | Multi-gear resistance output device and detecting system |
| CN104075022A (en) * | 2014-06-30 | 2014-10-01 | 威顿水泥集团有限责任公司 | Valve opening degree feedback device of tertiary-air duct high-temperature gate valve of rotary cement kiln |
| CN106441429A (en) * | 2016-09-04 | 2017-02-22 | 合肥飞鸟信息技术有限公司 | Temperature and humidity transmitter or recorder detection system |
| CN110806226A (en) * | 2019-09-27 | 2020-02-18 | 中国一冶集团有限公司 | Wireless transmitter and inspection system, verification method and debugging method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2055253U (en) * | 1989-05-08 | 1990-03-28 | 中国建筑科学研究院空气调节研究所 | Precise constant-current source type thermal resistance temp. transducer |
| CN201352162Y (en) * | 2008-10-15 | 2009-11-25 | 嘉兴电力局 | Transformer temperature calibration device |
-
2012
- 2012-07-31 CN CN2012102691819A patent/CN102879122A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2055253U (en) * | 1989-05-08 | 1990-03-28 | 中国建筑科学研究院空气调节研究所 | Precise constant-current source type thermal resistance temp. transducer |
| CN201352162Y (en) * | 2008-10-15 | 2009-11-25 | 嘉兴电力局 | Transformer temperature calibration device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103984250A (en) * | 2014-04-28 | 2014-08-13 | 广东电网公司中山供电局 | Multi-gear resistance output device and detecting system |
| CN103984250B (en) * | 2014-04-28 | 2017-04-12 | 广东电网公司中山供电局 | Multi-gear resistance output device and detecting system |
| CN104075022A (en) * | 2014-06-30 | 2014-10-01 | 威顿水泥集团有限责任公司 | Valve opening degree feedback device of tertiary-air duct high-temperature gate valve of rotary cement kiln |
| CN106441429A (en) * | 2016-09-04 | 2017-02-22 | 合肥飞鸟信息技术有限公司 | Temperature and humidity transmitter or recorder detection system |
| CN110806226A (en) * | 2019-09-27 | 2020-02-18 | 中国一冶集团有限公司 | Wireless transmitter and inspection system, verification method and debugging method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130116 |