CN201772890U - Field display device connected on transmitter loop in series - Google Patents
Field display device connected on transmitter loop in series Download PDFInfo
- Publication number
- CN201772890U CN201772890U CN2010202998734U CN201020299873U CN201772890U CN 201772890 U CN201772890 U CN 201772890U CN 2010202998734 U CN2010202998734 U CN 2010202998734U CN 201020299873 U CN201020299873 U CN 201020299873U CN 201772890 U CN201772890 U CN 201772890U
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- transmitter
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- display
- display device
- transmitter loop
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Abstract
The utility model discloses a field display device connected on a transmitter loop in series, which comprises a display, and is characterized in that input signals of the display are 4mA-20mA, a '+' end and a '-' end of the input signals are respectively connected with signal wires, and the other ends of the signal wires are connected with a series end of the transmitter loop. The series end of the transmitter loop can be connected into the transmitter loop in series in needing, thereby being capable of displaying the measurement parameters of a transmitter, being capable of being effectively suitable for the situation that a site transmitter is not provided with a digital display meter head in the production process, but the technology requires to know the measuring situation of the transmitter on site, furthermore, the signal wires can select length according to practical needs, thereby being capable of being effectively suitable for the situation that the technology requires to know the measuring value of the transmitter on places which are far away from the installment position of the transmitter.
Description
Technical field
The utility model relates to a kind of electric device, especially a kind of on-the-spot display device that is serially connected with transducer circuit.
Background technology
Along with science and technology development, various transmitters are used in the various Industry Control widely, for control center provides the in-site measurement parameter.Existing transmitter comprises pressure unit, fluid level transmitter, temperature transmitter, flow transmitter etc., and in the electrical control field, most transmitter adopts the standard output signals of 4mA～20mA.Along with development of auto-control technology, existing control system adopts centralized control usually, the mode of centralized displaying, in the pulpit, pass through display, modes such as configuration software show the on-site parameters that needs reference, because system all is design in advance, some are at the data-signal that need not as direct references object, one user can't learn usually, and these measurement parameters can read from the scene for the transmitter that the scene has Presentation Function, and for the transmitter that does not have Presentation Function, then need by the programming software of special use by with control module (as PLC) be connected to come online reading, very inconvenience and technical requirement are higher.
In production run, in-situ transducer is not with the digital display gauge outfit, and technology requires the scene to know the measured value of transmitter; Perhaps in-situ transducer has the digital display gauge outfit, but the personnel that the local both of these case that install away from transmitter in the place that technological requirement is known the transmitter measured value tends to make execute-in-place are because of can not understanding process parameter value at any time, and causes the error of certain operations.Cause the fluctuation of production sometimes, the generation of situations such as the instability of product quality.
Summary of the invention
The purpose of this utility model is a kind of on-the-spot display device that is serially connected with transducer circuit that can conveniently read the in-situ transducer measurement parameter that provides for the deficiency that solves above-mentioned technology.
In order to achieve the above object, the on-the-spot display device that is serially connected with transducer circuit that the utility model is designed, comprise display, it is characterized in that described display is that input signal is the display of 4mA～20mA, its input signal "+" end and input signal "-" end are connected with signal wire respectively, and the other end of signal wire is the series side of transducer circuit.
The on-the-spot display device that is serially connected with transducer circuit that the utility model obtains, whenever necessary, the series side of transducer circuit can be connected in series into transducer circuit, the measurement parameter that just can show this transmitter, anyly at the scene want that the place of understanding technological parameter loads onto this device, just can know the variation of technological parameter intuitively, and the opertaing device at scene is operated according to the shown value of display, can successfully manage in the production run in-situ transducer and not be with the digital display gauge outfit, and technology requires the scene to know the situation of the measured value of transmitter, signal wire can successfully manage technological requirement and know the situation of the place of transmitter measured value away from the transmitter installation place according to realizing needs selection length in addition.
Description of drawings
Fig. 1 is the structural representation of embodiment 1.
Among the figure: the series side 3 of display 1, signal wire 2, transducer circuit.
Embodiment
The utility model will be further described in conjunction with the accompanying drawings below by embodiment.
Embodiment 1
As shown in Figure 1, the described on-the-spot display device that is serially connected with transducer circuit of present embodiment, comprise display, it is characterized in that described display is that input signal is the display of 4mA～20mA, its input signal "+" end and input signal "-" end are connected with signal wire respectively, and the other end of signal wire is the series side of transducer circuit.
With the pressure signal before this enterprise three phases melt directly spinning filament line supercharge pump is example; the melt of enterprise's three phases melt directly spinning filament production line is taken over the road by three phases polyester workshops and is sent into three phase directly spinning filament workshops; the melt in three phase polyester workshops is except sending into three phase directly spinning filament workshops, and remaining melt send pelleter to carry out pelletizing.If long filament production has fluctuation; perhaps open, when stopping; for the stability (guaranteeing the stable of 18 melt supercharge pump top hole pressures) that guarantees production of polyester, will operate the electronic distribution valve of the melt that advances pelleter, driving valve and closing the valve operation of this motorized valve carried out at the scene.At this moment, the technological operation personnel just require the situation of the pressure of understanding directly spinning filament line supercharge pump very urgently, if pressure raises, will increase the motorized valve aperture of removing pelleter, otherwise, just the aperture of motorized valve is correspondingly reduced.And the pressure unit before the on-the-spot installation site of motorized valve and the directly spinning filament line supercharge pump is in two different workshops, and there's a great difference between the two.In the past the technological operation personnel to the operation of motorized valve often with sensation, after adopting this device, the series side of the transducer circuit of signal wire is serially connected in the loop of the pressure unit before the supercharge pump of long filament workshop, and display is arranged on the next door of motorized valve, just can reflect the variation of pressure very in real time, and come motorized valve is controlled with this, guaranteed the stability of producing.
The utlity model has following advantage:
1, can understand at a distance the measured value of technological parameter, be convenient to the site operation personnel to the operation of field apparatus.
2, when switching fondant filter, guarantee to switch the synchronism with data, and then guarantee the stability of producing to reduce the hidden danger that product quality is brought.
3. in the time of can making device discharge, drainage, the Field Force obtains first hand data, improves the stability of operation.
Claims (1)
1. on-the-spot display device that is serially connected with transducer circuit, comprise display, it is characterized in that described display is that input signal is the display of 4mA～20mA, its input signal "+" end and input signal "-" end are connected with signal wire respectively, and the other end of signal wire is the series side of transducer circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202998734U CN201772890U (en) | 2010-08-20 | 2010-08-20 | Field display device connected on transmitter loop in series |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202998734U CN201772890U (en) | 2010-08-20 | 2010-08-20 | Field display device connected on transmitter loop in series |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201772890U true CN201772890U (en) | 2011-03-23 |
Family
ID=43752738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202998734U Expired - Fee Related CN201772890U (en) | 2010-08-20 | 2010-08-20 | Field display device connected on transmitter loop in series |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201772890U (en) |
-
2010
- 2010-08-20 CN CN2010202998734U patent/CN201772890U/en not_active Expired - Fee Related
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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: 20110323 Termination date: 20130820 |