TWI546521B - Testing method for buoy liquid-level transmitter - Google Patents

Description

Float level transmitter detection method

The invention relates to a pontoon corrector, in particular to a detecting method for detecting a flu level correction record.

It is known that current pharmaceutical, semiconductor or chemical and petrochemical plants, etc., are provided with a plurality of storage tank devices for loading chemical or other liquids. The tanks are equipped with a float liquid level conveyor on the tank after the rack installation. The float level conveyor can measure the liquid level in the tank and the liquid interface of two different specific gravity, and transmit the corresponding 4~ A 20 mA signal is used to check if the liquid level in the installed tank is in compliance.

When the tank is detected, a single specific gravity liquid is poured into the tank, and when the liquid flows into the float level conveyor, the float level transmitter displays the measured data of each level of liquid level. . The detector will judge whether the float level transmitter is qualified according to the measured data displayed by the float level transmitter.

Usually, there are many problems in the way of human judgment. When the data of the groove measured by the float level transmitter and the data of the original cylinder pass are in error, the tester will judge that the error range data is not much worse, usually It will be considered that the float level transmitter conforms to the regulations, and the method of detecting the recorded data is completed. However, this detection method is easy to cause the detector to behave in a fraudulent manner, and is also an irresponsible detection behavior.

Therefore, the main object of the present invention is to solve the conventional defect and avoid the existence of the missing. The present invention uses the detecting device to perform the calibration detection. In the detection, the basic material of the detected object is first input into the detecting device, and the standard value is calculated by the detecting device. According to the data collected by the float level transmitter, the data of the detected object is transmitted to the detecting device, and compared with the standard value data calculated by the previously input basic data, and if it is within the allowable error range, the analysis is qualified. If it is not within the allowable error range, the analysis will be unqualified, and the calibration curve and the printed report will be made to accurately provide the test results to avoid the tester cheating others.

In order to achieve the above object, the present invention provides a method for detecting a float level transmitter, comprising: providing a detecting device, wherein the detecting device displays a basic data screen, and inputs basic data according to each field displayed in the basic data screen, and detects The device performs calculation based on the input basic data, and the calculated data forming standard value is displayed on the detecting device. Then, the detecting device obtains the measured display value from the float level transmitter, further analyzes the displayed value and the standard value, and records the data, and displays whether the instrument is qualified or unqualified according to the analyzed tolerance range. And displayed on the detection device. Finally, the calibration curve measured by the detecting device is drawn based on the recorded data result and displayed on the detecting device.

In an embodiment of the present invention, the basic data includes at least: an engineering name field, a determination result field, an instrument number field, an instrument type field, an instrument label, and an allowable error percentage column. Bit, input (% of measurement) field, output (measured current range mA) field, first liquid specific gravity (liquid specific gravity S1) field, second liquid specific gravity (liquid specific gravity S2) field, instrument length column Bit, set zero percentage (0%) field, set 100% (100%) field and environmental information.

In one embodiment of the invention, the measurement data transmitted by the float level transmitter is data generated by a liquid having a single specific gravity poured into the measuring instrument.

In an embodiment of the invention, the float level transmitter has a liquid level altimeter of 0 to 100%, and the liquid level altimeter is 0%, 25%, 50%, 75%, and 100%.

In one embodiment of the invention, the level gauge 0% is 4 mA, 25% is 8 mA, the 50% is 12 mA, the 75% is 16 mA, and 100% is 20 mA.

In an embodiment of the invention, the recorded data is correction data, and the calibration resource The material is input percentage (%), standard value (mA), display value (mA), and error value (%).

In one embodiment of the invention, the instrument is a canister.

In an embodiment of the invention, the recording data and the calibration curve are printed to be a report data output.

In an embodiment of the invention, the detecting device comprises: an arithmetic unit, an operation interface, a storage unit, a display screen and an output interface. The arithmetic unit is electrically connected to the float liquid level transmitter for calculating the input basic data to form a standard value, analyzing the standard value and the display value, and recording the data and drawing a calibration curve. The operation interface is composed of a plurality of keys, and is electrically connected to the operation unit, and the basic information of the instrument is input by the plurality of keys, and is transmitted to the operation unit. The storage unit is electrically coupled to the arithmetic unit to store an input percentage (%), a standard value (mA), a display value (mA), and an error value (%) calculated by the arithmetic unit. The display screen is electrically connected to the computing unit for displaying a basic data screen, a calibration data table, and a calibration graph. The output interface is electrically connected to the computing unit, and the data recorded by the computing unit and the calibration graph are outputted, and the recording data and the calibration graph are printed out to be a buoy level transmitter calibration record report.

In an embodiment of the invention, the float level transmitter corrects the record report, including: engineering name, determination result, basic data, correction data, float level transmitter symbol, calibration curve, and detector.

100~112‧‧‧Steps

1‧‧‧Detection device

11‧‧‧ arithmetic unit

12‧‧‧Operation interface

13‧‧‧ storage unit

14‧‧‧ display screen

15‧‧‧ Output interface

2‧‧‧Cylinder

21‧‧‧Float level transmitter

3‧‧‧Basic information screen

31‧‧‧Project Name Field

32‧‧‧Results field

33‧‧‧Instrument number field

34‧‧‧ Instrument Type Field

35‧‧‧ Instrument label field

36‧‧‧% error tolerance field

37‧‧‧Input measurement percentage field

38‧‧‧Output current range field

39‧‧‧First liquid specific gravity field

310‧‧‧Second liquid specific gravity field

311‧‧‧ Instrument length field

312‧‧‧Set zero percent field

313‧‧‧Set a hundred percent ratio field

314‧‧‧Environmental Information Field

4‧‧‧Float level transmitter calibration record report

41‧‧‧Project Name

42‧‧‧Results

43‧‧‧Basic information

44‧‧‧corrected data

45‧‧‧Float level transmitter symbol

46‧‧‧ calibration curve

47‧‧‧Detector

Fig. 1 is a flow chart showing the method of detecting the float level transmitter of the present invention.

Fig. 2 is a schematic view showing the electrical connection instrument of the detecting device of the present invention.

Figure 3 is a schematic diagram of the basic data of the present invention.

Fig. 4 is a schematic view showing a calibration curve of the analysis result of the present invention.

Figure 5 is a schematic diagram of the correction record report of the float level transmitter of the present invention.

The technical content and detailed description of the present invention are now described in conjunction with the drawings. Next: Please refer to FIG. 1 , which is a schematic flow chart of the method for detecting the float level transmitter of the present invention. As shown in the figure: the detection method of the float level transmitter of the present invention is made in the detection of whether the measured value measured by the float level conveyor is qualified or unqualified, and the printed data and the calibration curve can be printed. report.

First, in step 100, a detecting device is provided for analyzing the error value measured by the established data and the float level transmitter.

In step 102, the data is created. When the data is created, the basic information screen is displayed on the display screen of the detecting device (not shown), and the fields on the basic data screen at least include: a project name field, A determination result, an instrument number field, an instrument type field, an instrument label field, a permissible error percentage (percentage %) field, an input (measurement percentage %) field, an output (measurement Current range mA) field, a first liquid specific gravity (liquid specific gravity S1) field, a second liquid specific gravity (liquid specific gravity S2) field, an instrument length (such as a buoy) field, a set zero percentage (0%) The field, a 100% (100%) field and an environmental information field are used to input basic data by the operation interface of the detecting device. In the figure, the instrument is a slot; the operation interface is a plurality of buttons.

Step 104: Calculate the basic data. After the basic data is input, the operation unit of the detecting device starts the calculation (length×specific gravity) according to the input basic data to obtain a standard value. In the figure, the arithmetic unit is a microprocessor.

Step 106: Store the calculated standard value, and after the operation unit is finished, store the data of the standard value of the operation result in the storage unit. In this figure, the storage unit is a memory.

Step 108: Analyze the data. After the basic data calculation is completed, the detecting device obtains the measured value of the measurement of the instrument by an external float liquid level transmitter (not shown), and the display value of the instrument is calculated by the detecting device. The data of the standard value further analyzes (judges) the allowable error range between the displayed value and the standard value, records the analyzed data, and analyzes whether the measured value of the instrument is qualified or unqualified according to the allowable error range, and displays it in the detection. On the display screen of the device. In this figure, The recorded analysis data is the input percentage (%), the standard value (mA), the display value (mA), and the error value (%).

In step 110, the instrument measurement curve is drawn, and the curve measured by the instrument is drawn according to the analysis result in step 106, and displayed on the display screen.

In step 112, a report is prepared, and the analysis data and the graph are transmitted to the printer, and the analysis data and the graph are printed by the printer.

Please refer to FIG. 2 , which is a schematic diagram of an electrical connection instrument of the detection device of the present invention. As shown in the figure: the detecting device 1 is connected to the float level transmitter 21 of the tank 2, and the float level transmitter 21 has 0%, 25%, 50%, 75% and 100% liquid level indication data. The detecting device 1 includes an arithmetic unit 11, an operation interface 12, a storage unit 13, a display screen 14, and an output interface 15.

The arithmetic unit 11 is electrically connected to the buoy level transmitter 21 for calculating the input basic data to become a standard value. The liquid data entered in the instrument is transferred to the arithmetic unit 11, and the data is recorded and a calibration curve is drawn. In the figure, the arithmetic unit is a microprocessor.

The operation interface 12 is composed of a plurality of keys, and is electrically connected to the operation unit 11, and the basic information of the instrument is input by the plurality of keys, and is transmitted to the operation unit 11.

The storage unit 13 is electrically coupled to the computing unit 11 to store an input percentage (%), a standard value (mA), a display value (mA), and an error value (%) calculated by the arithmetic unit. In the figure, the storage unit 13 is a memory.

The display screen 14 is electrically connected to the computing unit 11 for displaying a basic data screen, a calibration data table, and a calibration graph.

The output interface 15 is electrically connected to the computing unit 11. The output interface 15 is electrically connected to an external printer (not shown), and the computing unit 11 can analyze the qualified or unqualified data. And the graph is transmitted to the printer to print the analysis data and the graph to make a report. In this figure, the output interface is a connector (USB) or a wireless transmission module.

After the data of the detection device 1 is established, the operation unit 11 calculates and forms the detection. The standard value (mA), the detecting device 1 further analyzes the standard value and the display value (mA) measured by the float level transmitter to determine whether it is qualified or unqualified, and records the data and draws a calibration curve. The output interface 15 is connected to the printer (not shown) to reprint the analyzed record data and the calibration curve to make a float level transmitter calibration record report.

Please refer to FIG. 2 to FIG. 4 , which are schematic diagrams of calibration curves of the electrical connection instrument, the basic data screen and the analysis result of the detection device of the present invention. As shown in the figure, the basic data, analysis data and graphs exemplified herein are for facilitating understanding of the technical contents of the present invention. When the float level conveyor 21 is mounted on the tub 2, the buoy level conveyor 21 is electrically coupled to the detecting device 1, and a liquid of a single specific gravity is poured inside the tub 2. When the detecting device 1 starts detecting, the display screen 14 of the detecting device 1 will display the basic data screen 3 including at least the engineering name field 31, the determination result field 32, the instrument number field 33, the instrument type field 34, and the instrument. Manufacturer field 35, allowable error percentage field 36, input (measurement percentage) field 37, output (current range) field 38, first liquid specific gravity field 39, second liquid specific gravity field 310, instrument length The field 311, the set zero percentage field 312, the 100% ratio field 313 and the environment information field 314 are input, and the basic information is input by the operation interface 11 of the detecting device 1 as follows: "LT-1491 is input in the instrument number field 33". "In the instrument type field 34, enter "float type"; in the instrument label field 35, enter "ABB"; in the allowable error percentage field 36, enter "0.50%"; input (measurement percentage) field 37 input) "0~100%"; input "4~20" (mA) in the output (current range) field 38; "0.85" in the first liquid specific gravity (liquid specific gravity S1) field 39; the second liquid specific gravity (liquid Enter "0" in field S2) field 310; input in instrument length field 311 100cm "; environmental information field 314 enter" 30 ℃, 50% RH. "

After the above basic data is input, the operation of the arithmetic unit 11 is obtained. This standard value (mA) is stored in the storage unit 13 to a standard value (mA) as in the calibration data table below. At this time, the float liquid level conveyor 21 of the cylindrical tank 2 is electrically connected to the arithmetic unit 11 of the detecting device 1, and the liquid in the single-specific gravity is poured into the cylindrical tank 2, and different specific gravity is converted by calculation. For you to obtain a single specific gravity liquid, when the liquid will flow into the float level transmitter 21 (the level gauge 0% is 4mA, 25% is 8mA, the 50% is 12mA, the 75% is 16mA and 100% is 20 mA), the float level transmitter 21 takes the measured data as the current range of the display value (mA) in the correction data table, and transmits the display value to the operation unit 11, after the operation The arithmetic analysis of the unit 11 obtains the error percentage (%) in the correction data table, and judges whether or not the float level transmitter 21 is qualified.

In the detection of the formation, the percentage of error analyzed is also plotted as a calibration curve (as shown in Figure 4).

Calibration data sheet:

When the content of the above-mentioned correction data table is displayed on the display screen 14 of the detecting device 1, the correction data table is also displayed on the same screen, and when the detector inputs the substrate data, the basic data is input. The input (%), output (mA) data will also be displayed in the correction data table input percentage (%) And in the standard value (mA).

Please refer to FIG. 5, which is a schematic diagram of the calibration record report of the float level transmitter of the present invention. As shown in the figure: When the float level transmitter of the present invention is in the calibration test, the detector or the commissioner can transmit the data to the printer, and the float level transmitter corrects the record report via the printer. Printed out. In the figure, the float level transmitter correction record report 4 includes at least an engineering name 41, a determination result 42, a basic data 43, a correction data 44, a float level transmitter symbol 45, a calibration curve 46, and a detector. 47.

The above are only the preferred embodiments of the present invention and are not intended to limit the scope of the present invention. That is, the equivalent changes and modifications made by the scope of the patent application of the present invention are covered by the scope of the invention.

100~112‧‧‧Steps

Claims (6)

A method for detecting a float level conveyor comprises: a) providing a detecting device; b) having a float level transmitter mounted on a barrel, the float level transmitter and the detecting device Electrically connected, a single specific gravity liquid is poured into the tank, and the float level transmitter has a liquid level altimeter of 0 to 100%, and the liquid level altimeter is 0%, 25%, 50%, 75%. And 100%; c), the detecting device displays the basic data screen, and inputs basic data according to each field displayed in the basic data screen, the basic data includes at least: a project name field, a judgment result field, an instrument Number field, one instrument type field, one instrument label, one allowable error percentage field, one input (measurement percentage%) field, one output (measure current range mA) field, a first liquid specific gravity (liquid specific gravity S1) field, a second liquid specific gravity (liquid specific gravity S2) field, an instrument length field, a set zero percentage (0%) field, a set hundred percent (100%) field and one Environmental information field; d), the detection device operates according to the basic data input The calculated data forming standard value is displayed on the detecting device; e), the detecting device obtains the display value measured by the float liquid level transmitter, and further analyzes the allowable error range by the display value and the standard value. And recording the data, and indicating whether the instrument is qualified or unqualified according to the allowable error range, and displayed on the detecting device; f), drawing the measured calibration curve of the detecting device according to the recorded data result, and Displayed on the detection device. The method for detecting a float level transmitter according to claim 1, wherein the liquid level gauge 0% is 4 mA, 25% is 8 mA, the 50% is 12 mA, and the 75% is 16 mA and 100%. 20mA. The method for detecting a float level transmitter according to claim 1, wherein the record data is correction data, and the correction data is input percentage (%), standard value (mA), display value (mA). And the error value (%). The method for detecting a float level conveyor as described in claim 1, further comprising a step g of printing the recorded data and the calibration curve into a report data output. The method for detecting a float level transmitter according to claim 4, wherein the detecting device comprises: an arithmetic unit electrically connected to the float liquid level transmitter for calculating the input basic data. Forming a standard value, analyzing the standard value and the display value, and recording the data and drawing a calibration curve; an operation interface is composed of a plurality of buttons, and is electrically connected with the operation unit, and inputting the instrument by the plurality of keys The basic data is passed to the operation unit; the storage unit is electrically connected to the operation unit to store the input percentage (%), standard value (mA), and display value (mA) calculated by the operation unit. And an error value (%); a display screen is electrically connected to the computing unit for displaying a basic data screen, a calibration data table, and a calibration curve; an output interface is electrically connected to the computing unit, The data recorded by the arithmetic unit and the calibration graph are output, and the recorded data and the calibration graph are printed and made into a buoy level transmitter calibration record report. The method for detecting a float level transmitter according to claim 5, wherein the float level transmitter corrects the record report, including the project name, the determination result, the basic data, the correction data, and the float level transmitter symbol. , calibration curve and detector.