CN212844149U - Pressure transmitter field detection device - Google Patents
Pressure transmitter field detection device Download PDFInfo
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- CN212844149U CN212844149U CN202021510027.2U CN202021510027U CN212844149U CN 212844149 U CN212844149 U CN 212844149U CN 202021510027 U CN202021510027 U CN 202021510027U CN 212844149 U CN212844149 U CN 212844149U
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- pressure transmitter
- dc24v
- power supply
- indicating instrument
- detection
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- 238000001514 detection method Methods 0.000 title claims abstract description 35
- 238000005259 measurement Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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Abstract
本实用新型涉及一种压力变送器现场检测装置，包括电流指示仪表，DC24V电源模块，所述的DC24V电源模块电源输入端连接AC220V输入电源线，DC24V电源模块的DC24V输出端的一根电源线连接电流指示仪表，再连接到检测头一；DC24V输出端的另一根电源线连接检测头二，检测头一、检测头二连接被检测的压力变送器使压力变送器与电流指示仪表串联。该装置适用于现场压力变送器的检测，采用直连式检测方法，可以测量压力变送器输出电流，可方便快速的实现检测压力变送器的工作状态。避免在实验室中进行检测，省去拆卸复杂、操作繁琐、需要工具较多的麻烦，同时也不会造成回装接线错误、测值不准确、传感器损坏等问题。
The utility model relates to an on-site detection device for a pressure transmitter, comprising a current indicating instrument and a DC24V power supply module. The power supply input end of the DC24V power supply module is connected to an AC220V input power supply line, and a power supply line of the DC24V output end of the DC24V power supply module is connected to The current indicating instrument is connected to the detection head 1; the other power line of the DC24V output end is connected to the detection head 2, and the detection head 1 and the detection head 2 are connected to the detected pressure transmitter, so that the pressure transmitter and the current indicating instrument are connected in series. The device is suitable for the detection of on-site pressure transmitters, adopts a direct-connected detection method, can measure the output current of the pressure transmitter, and can conveniently and quickly detect the working state of the pressure transmitter. Avoid testing in the laboratory, save the trouble of complex disassembly, cumbersome operation, and need more tools, and also will not cause problems such as wrong wiring, inaccurate measured values, and sensor damage.
Description
Technical Field
The utility model relates to a detection device specifically is a pressure transmitter witnessed inspections device.
Background
The two-wire passive output sensor is an important detection device, can convert detected information into an electric signal or output information in other required forms according to a certain rule, and can realize various basic sensing functions by various types such as a thermosensitive element, a force sensitive element, a magnetic sensitive element, a humidity sensitive element, a sound sensitive element and the like.
Detection of such sensors is necessary due to the complex environmental conditions in which they are located. However, such sensors do not have a power supply, and therefore, the sensors need to be detected in a laboratory, which not only has complex disassembly, complex operation and more tools, but also easily causes the problems of wrong return connection wires, inaccurate measured values, sensor damage and the like.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a pressure transmitter witnessed inspections device avoids detecting in the laboratory, saves and dismantles complicacy, complex operation, needs the more trouble of instrument, also can not cause return assembly wiring mistake, survey value inaccurate, sensor damage scheduling problem simultaneously.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a pressure transmitter on-site detection device comprises a current indicating instrument and a DC24V power supply module, wherein the power supply input end of the DC24V power supply module is connected with an AC220V input power line, one power line at the DC24V output end of the DC24V power supply module is connected with the current indicating instrument and then is connected to a first detection head; the other power line at the output end of the DC24V is connected with a second detection head, and the first detection head and the second detection head are connected with a pressure transmitter to be detected so that the pressure transmitter is connected with the current indicating instrument in series.
After the current value of the pressure transmitter is measured, the measured current value is quickly converted into required analog quantity by utilizing a TREND function, so that the analog measurement value of the sensor to be measured is obtained.
Adopt above-mentioned technical scheme the utility model discloses, compare with prior art, beneficial effect is:
the direct-connection type pressure transmitter detection device is suitable for detection of a field pressure transmitter, can measure the output current of the pressure transmitter by adopting a direct-connection type detection method, and can conveniently and quickly realize detection of the working state of the pressure transmitter.
The further preferred scheme is as follows: the detection device is provided with a shell, a current indicating instrument and a DC24V power module, wherein the shell is provided with a transparent window for observing the current indicating instrument.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a circuit diagram of an embodiment of the present invention;
description of reference numerals: 1-DC 24V power module; 2-current indicating instrument; 3-a pressure transmitter; 4-first detection; and 5, detecting a second head.
Detailed Description
The present invention will be further described with reference to the following examples.
Referring to fig. 1 and 2, the field detection device of the pressure transmitter consists of a current indicating instrument 2 and a DC24V power module 1; the power input end of the DC24V power module 1 is connected with an AC220V input power line, one power line at the DC24V output end of the DC24V power module 1 is connected with a current indicating instrument and then is connected with a first detection head 4; the other power line at the output end of the DC24V is connected with a second detection head 5, the first detection head 4 and the second detection head 5 are connected with a pressure transmitter to be detected, and the pressure transmitter is connected with a current indicator in series.
The detection device is provided with a shell, the current indicating instrument 2 and the DC24V power module 1 are arranged in the shell, and the shell is provided with a transparent window for observing the current indicating instrument 2.
As shown in FIG. 2, the indication number of the indicating instrument (4-20 mA) is the current output by the pressure transmitter; and (3) obtaining the analog measurement value of the sensor to be measured by EXCEL calculation and conversion, wherein the analog measurement cell C4= TREND (B3: B4, A3: A4, C3,).
The above description is only a preferred and practical embodiment of the present invention, and not intended to limit the scope of the present invention, and all structural equivalents made by using the contents of the specification and drawings are included in the scope of the present invention.
Claims (2)
1. A pressure transmitter field test device comprising a current indicating instrument, a DC24V power module, wherein: the power supply input end of the DC24V power supply module is connected with an AC220V input power line, one power line at the DC24V output end of the DC24V power supply module is connected with a current indicating instrument and then is connected with a first detection head; the other power line at the output end of the DC24V is connected with a second detection head, and the first detection head and the second detection head are connected with a pressure transmitter to be detected so that the pressure transmitter is connected with the current indicating instrument in series.
2. The pressure transmitter witness detection device of claim 1, wherein: the detection device is provided with a shell, a current indicating instrument and a DC24V power module, wherein the shell is provided with a transparent window for observing the current indicating instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021510027.2U CN212844149U (en) | 2020-07-28 | 2020-07-28 | Pressure transmitter field detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021510027.2U CN212844149U (en) | 2020-07-28 | 2020-07-28 | Pressure transmitter field detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212844149U true CN212844149U (en) | 2021-03-30 |
Family
ID=75121562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021510027.2U Active CN212844149U (en) | 2020-07-28 | 2020-07-28 | Pressure transmitter field detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212844149U (en) |
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2020
- 2020-07-28 CN CN202021510027.2U patent/CN212844149U/en active Active
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