Multi-channel temperature and pressure switch verification system

Abstract

The utility model is suitable for the technical field of verification equipment, and provides a multichannel temperature and pressure switch verification system comprising a controller; the standard thermometer and the standard pressure gauge are in communication connection with the controller; a plurality of temperature switches and / or calibrated pressure switches in communication connection with the controller, wherein the calibrated temperature switches and the calibrated pressure switches are respectively arranged on the temperature generator and the pressure generator; and the upper computer is in communication connection with the controller. According to the invention, the controller can be connected to at least 16 verification switch channels at the same time, and the controller is in communication connection with the upper computer, so that at least 16 temperature switches or pressure switches can be monitored and recorded, a verifier only needs to monitor and record parameters in a monitoring computer, manual recording is not needed, and the verification efficiency is improved. The labor amount of a checker is effectively reduced, the instrument checking speed is improved, and errors caused by data recording of workers are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of calibration equipment, and particularly relates to a multi-channel temperature and pressure switch calibration system. Background Technique

[0002] At present, when calibrating temperature and pressure switches in a thermal control instrument laboratory, the temperature switch is generally heated through an oil bath or a water bath. When the heating temperature reaches the action value of the temperature switch, a multimeter or other switch quantity monitoring device is used to monitor the action of the temperature switch, and its action value is recorded. The pressure switch generally adjusts the pressure up and down through a pressure calibration bench. When the pressure reaches the action value of the pressure switch, a multimeter or other switch quantity monitoring device is used to monitor the action of the pressure switch, and its action value is recorded by the calibration personnel.

[0003] However, usually when calibrating the system table in a thermal control laboratory, there are few calibration personnel and it is impossible to calibrate and monitor multiple temperature switches and pressure switches simultaneously. If the number of thermal control instruments to be calibrated is large, it will require a lot of manpower, and at the same time, it will affect the calibration progress of the thermal control instruments, resulting in low calibration efficiency. Content of the Utility Model

[0004] The utility model provides a multi-channel temperature and pressure switch calibration system, aiming to solve at least one of the problems existing in the above-mentioned prior art.

[0005] The utility model is realized as follows. A multi-channel temperature and pressure switch calibration system includes:

[0006] A controller;

[0007] A standard thermometer and a standard pressure gauge communicatively connected to the controller;

[0008] Multiple temperature switches and / or pressure switches to be calibrated communicatively connected to the controller, and the temperature switches to be calibrated and the pressure switches to be calibrated are respectively installed on a temperature generator and a pressure generator;

[0009] A host computer communicatively connected to the controller.

[0010] In one embodiment, the calibration system includes:

[0011] A communication module communicatively connected to the controller, and the controller establishes a communication connection with the host computer through the communication module.

[0012] In one embodiment, the calibration system includes:

[0013] An alarm device communicatively connected to the controller, which is used to give an alarm when the temperature switches to be calibrated and the pressure switches to be calibrated are abnormal.

[0014] In one embodiment, the calibration system further includes:

[0015] A reset button respectively communicatively connected to the controller and the alarm device, configured to perform a reset process on the alarm device.

[0016] In one embodiment, the alarm device is an audible and visual alarm.

[0017] In one embodiment, the controller includes:

[0018] A recording module, configured to record the temperature values and pressure values when the temperature switch to be calibrated and the pressure switch to be calibrated act and when they are reset.

[0019] In one embodiment, the calibration system includes:

[0020] A control switch communicatively connected to the controller, configured to control the startup and shutdown of the calibration system.

[0021] In one embodiment, the calibration system includes:

[0022] A power supply module communicatively connected to the controller, configured to supply power to the calibration system.

[0023] In one embodiment, the calibration system includes

[0024] A printer communicatively connected to the host computer, configured to print a calibration report.

[0025] In one embodiment, the controller is a PLC controller.

[0026] In an embodiment of the present application, a multi-channel temperature and pressure switch calibration system is provided, including: a controller; a standard thermometer and a standard pressure gauge communicatively connected to the controller; a plurality of temperature switches and / or pressure switches to be calibrated communicatively connected to the controller, the temperature switch to be calibrated and the pressure switch to be calibrated are respectively installed on a temperature generator and a pressure generator; a host computer communicatively connected to the controller. This controller can simultaneously access at least 16 calibration switch channels, and by communicatively connecting the controller to the host computer for data exchange, it can monitor and record at least 16 temperature switches or pressure switches. At the same time, the controller records the standard temperature values and standard pressure values of the standard thermometer and the standard pressure gauge and sends them to the host computer for comparison by the host computer to achieve calibration. The calibrator only needs to monitor and record the parameters on the monitoring computer without manual recording, effectively reducing the labor amount of the calibrator, improving the speed of instrument calibration, and reducing the error of data recording by staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic structural diagram of a multi-channel temperature and pressure switch calibration system provided by an embodiment of the present application;

[0028] Among them, 1 is a controller; 2 is a standard thermometer; 3 is a standard pressure gauge; 4 is a temperature switch to be calibrated; 5 is a pressure switch to be calibrated; 6 is a host computer; 7 is a communication module; 8 is an alarm device; 9 is a reset button; 10 is a control switch; 11 is a printer. Specific embodiments

[0029] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0030] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "radial", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more.

[0031] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0032] See Figure 1, in an embodiment of the present application, a multi-channel temperature and pressure switch calibration system is provided, including: a controller 1; a standard thermometer 2 and a standard pressure gauge 3 communicatively connected to the controller 1; a plurality of temperature switches 4 and / or pressure switches 5 to be calibrated communicatively connected to the controller 1, and the temperature switch 4 to be calibrated and the pressure switch 5 to be calibrated are respectively installed on a temperature generator and a pressure generator; a host computer 6 communicatively connected to the controller 1, and the host computer 6 can perform data interaction with the controller 1 to obtain the temperature value and pressure value recorded by the controller 1, so as to monitor the temperature switch 4 to be calibrated and the pressure switch 5 to be calibrated. The controller can access at least 16 calibration switch channels at the same time, and by communicatively connecting the controller with the host computer for data exchange, it can realize the monitoring and recording of at least 16 temperature switches or pressure switches. At the same time, the controller 1 records the standard temperature value and standard pressure value of the standard thermometer and the standard pressure gauge and sends them to the host computer for the host computer to compare and realize calibration. The calibrator only needs to monitor and record the parameters in the monitoring computer without manual recording, effectively reducing the workload of the calibrator, improving the speed of instrument calibration, and reducing the error of data recorded by the staff.

[0033] Among them, the standard thermometer 2 can be a standard resistance thermometer.

[0034] See Figure 1 , in an embodiment of the present application, the calibration system includes: a communication module 7 communicatively connected to the controller 1, and the controller 2 establishes a communication connection with the host computer 6 through the communication module 7. The communication module can be a TCP / IP communication module, which can communicate with the host computer 6 through a cable, and send the temperature value and pressure value when the temperature switch 4 to be calibrated and the pressure switch 5 to be calibrated recorded by the controller 1 act and reset to the host computer 6 through the communication module 7 for display and monitoring, so that the calibrator can view.

[0035] In an embodiment of the present application, the controller 1 can be a PLC controller, which can include a recording module for recording the standard temperature value and standard pressure value of the standard thermometer 2 and the standard pressure gauge 3, and recording the temperature value and pressure value when the temperature switch 4 to be calibrated and the pressure switch 5 to be calibrated act and reset.

[0036] See Figure 1 , in an embodiment of the present application, the calibration system includes: an alarm device 8 communicatively connected to the controller 1, which is used to alarm when the temperature switch 4 to be calibrated and the pressure switch 5 to be calibrated are abnormal, and can be used to remind the inspection personnel.

[0037] Among them, the alarm device 8 can be an audible and visual alarm, which is used to output sound and light simultaneously to prompt the inspector that the currently calibrated temperature switch 4 and / or the calibrated pressure switch 5 is abnormal. Further, an alarm scheme can be configured for each calibrated temperature switch 4 and / or calibrated pressure switch 5. For example, the alarm colors and sounds of different calibrated switches can be different, so that the inspector can directly determine the calibrated switch with an abnormality.

[0038] See Figure 1 , in an embodiment of the present application, the calibration system further includes: a reset button 9 respectively communicatively connected to the controller 1 and the alarm device 8, which is used to perform a reset process on the alarm device 8. The controller 1, the alarm device 8 and the reset button 9 can be arranged on a PCB circuit board and connected through a control circuit. After the alarm device 8 is started, the inspector can reset the alarm device 8 through the reset button 9 for the next alarm operation.

[0039] See Figure 1 , in an embodiment of the present application, the calibration system includes: a control switch 10 communicatively connected to the controller 1, which is used to control the start and stop of the calibration system.

[0040] In an embodiment of the present application, the calibration system includes: a power supply module (not shown in the figure) communicatively connected to the controller 1, which is used to supply power to the calibration system. The calibration system is also provided with a power interface, which is electrically connected to the power supply module. An external power supply can be connected to the power interface through a connecting wire to supply power to the power supply module.

[0041] Among them, the power supply module can be a lithium battery.

[0042] In an embodiment of the present application, the calibration system includes a printer 11 communicatively connected to the host computer 6, which is used to print a calibration report. Specifically, the host computer 6 can obtain the numbers when the calibrated temperature switch 4 and the calibrated pressure switch 5 act and the values when reset recorded by the controller 1. The inspector can calibrate and monitor each number through the host computer 6 and send a print instruction to the printer 11 to control the printer to print the calibration report.

[0043] In the embodiment of the present application, the controller 1 can be connected to at least 16 temperature switches 4 to be calibrated and / or pressure switches 5 to be calibrated. The temperature switches 4 to be calibrated and the pressure switches 5 to be calibrated are respectively installed on a temperature and pressure generator. The temperature and pressure generator raises the temperature and pressure. After the temperature switches 4 to be calibrated and the pressure switches 5 to be calibrated act, the controller 1 records the switch node action signal. At the same time when the switch node acts, the controller 1 records the temperature number of the standard thermometer 2 and the pressure value of the standard pressure gauge 3, and alarms through the alarm device 8 to remind the inspection personnel. The inspection personnel record the action values of the temperature switches 4 to be calibrated and the pressure switches 5 to be calibrated through the upper computer 6, and can reset the alarm through the reset button 9. Similarly, the temperature and pressure generator reduces the temperature and pressure, and records the return values of the temperature switches 4 to be calibrated and the pressure switches 5 to be calibrated. After the calibration is completed, the inspection personnel can control the printer 12 to print the inspection report through the upper computer 6. The controller can access at least 16 calibration switch channels at the same time, and realizes data exchange by communicating the controller with the upper computer, so as to monitor and record at least 16 temperature switches or pressure switches. At the same time, the controller 1 records the standard temperature value and the standard pressure value of the standard thermometer and the standard pressure gauge and sends them to the upper computer for the upper computer to compare and realize the calibration. The inspector only needs to monitor and record the parameters in the monitoring computer without manual recording, effectively reducing the labor intensity of the inspector, improving the speed of instrument calibration, and reducing the error of data recorded by the staff.

[0044] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-channel temperature and pressure switch calibration system, characterized in that, The calibration system includes: A controller; A standard thermometer and a standard pressure gauge communicatively connected to the controller; A plurality of temperature switches and / or pressure switches to be calibrated communicatively connected to the controller, where the temperature switch to be calibrated and the pressure switch to be calibrated are respectively installed on a temperature generator and a pressure generator; and A host computer communicatively connected to the controller, where the controller is used to simultaneously access at least 16 calibration switch channels, and data exchange is realized by communicatively connecting the controller and the host computer, so as to monitor and record at least 16 temperature switches or pressure switches; The calibration system includes: An alarm device communicatively connected to the controller, which is used to give an alarm when the temperature switch to be calibrated and the pressure switch to be calibrated are abnormal; A reset button communicatively connected to the controller and the alarm device respectively, which is used to reset the alarm device; The controller includes: A recording module, which is used to record the temperature values and pressure values when the temperature switch to be calibrated and the pressure switch to be calibrated act and when they are reset.

2. The multi-channel temperature and pressure switch calibration system according to claim 1, characterized in that, The calibration system includes: A communication module communicatively connected to the controller, and the controller establishes a communication connection with the host computer through the communication module.

3. The multi-channel temperature and pressure switch calibration system according to claim 1, characterized in that, The alarm device is an audible and visual alarm.

4. The multi-channel temperature and pressure switch calibration system according to claim 1, wherein The calibration system includes: A control switch communicatively connected to the controller, which is used to control the startup and shutdown of the calibration system.

5. The multi-channel temperature and pressure switch calibration system according to claim 1, characterized in that, The calibration system includes: A power supply module communicatively connected to the controller, which is used to supply power to the calibration system.

6. The multi-channel temperature and pressure switch calibration system according to claim 1, characterized in that, The calibration system includes A printer communicatively connected to the host computer, which is used to print a calibration report.

7. The multi-channel temperature and pressure switch calibration system according to any one of claims 1-6, characterized in that The controller is a PLC controller.

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