JP2012083198A - Analysis apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an analysis apparatus which includes a display operation unit in which display is easy to watch and which is easily cleaned and exchanged, and reduces unnecessary power consumption in the display operation unit.SOLUTION: An analysis apparatus 100 includes an apparatus body 20; a measuring unit 60 which measures characteristics of an object to be measured; and a display operation unit 110 which displays measurements measured by the measuring unit 60 and performs operation on various functions. In the analysis apparatus 100, remote display attaching/detaching means 120 is provided by which display and operation in the display operation unit 110 can be performed away from the apparatus body 20, and the apparatus body 20 and the display operation unit 110 can be attached/detached.

Description

  The present invention relates to an analyzer for analyzing characteristics of an object to be measured, and more particularly to display and operation.

  A liquid analyzer as shown in FIG. 7 is known as an industrial instrument mainly used outdoors. FIG. 7 is a perspective view of the appearance of the analyzer 10.

  In FIG. 7, the analysis device 10 includes a device main body 20 (including the door 25), a display operation unit 30, and a detection unit 40.

  A door 25 for opening and closing the analyzer 10 is attached to the front surface of the apparatus main body 20, and the inside of the analyzer 10 is covered by the apparatus main body 20 and the door 25.

  On one surface (front surface) of the door 25, a display operation unit 30 is provided and integrated. Moreover, the detection part 40 which detects the characteristic of to-be-measured object is connected to the inside of the analyzer 10 via a cable. Similarly, a power line P for supplying power to the analyzer 10 is connected to the inside of the analyzer 10.

  The door 25 can be opened and closed. The door 25 can be opened to access the inside of the analyzer 10, and the door 25 can be closed to keep the inside of the analyzer 10 waterproof. Thus, the display operation unit 30 provided on the door 25 and the apparatus main body 20 cannot be separated and have an integrated structure.

  FIG. 8 is a perspective view of the analyzer 10 with the door 25 opened. In FIG. 8, the analysis apparatus 10 includes a power receiving unit 50, a measurement unit 60, and a control unit 70.

  The power reception unit 50 is connected to the power line P, and the measurement unit 60 is connected to the detection unit 40 via a cable. The control unit 70 is provided on the other surface (back surface) of the door 25, and is connected to the display operation unit 30, the power reception unit 50, and the measurement unit 60.

  The measurement unit 60 receives a detection signal from the detection unit 40, performs predetermined calculation processing on the detection signal, and measures a characteristic value such as a pH value of the measurement target.

  The power receiving unit 50 supplies the power input from the power line P to the inside, receives the measurement value from the measurement unit 60, and outputs a current signal (for example, 4 to 20 mA) proportional to the magnitude to the outside.

  The display operation unit 30 is, for example, a touch panel type liquid crystal panel. The display operation unit 30 displays various measurement values received from the measurement unit 60 and touches (touches) the liquid crystal panel to perform various functions such as setting the device and changing display contents. Can be operated on.

  The control unit 70 includes, for example, a processor and a memory (both not shown), and the processor reads and executes a program stored in the memory, so that the display operation unit 30 and the measurement unit 60 and the like are executed. Control the operation of each part.

  Note that Patent Document 1 describes an analyzer having a display unit and a simple operation mode function.

JP 2007-218751 A

However, the analyzer 10 described above has the following problems.
(1) The analyzer 10 is often used outdoors and is fixedly installed in a pipe or tank filled with a measurement target. As described above, since the display operation unit 30 and the apparatus main body 20 have an integrated structure, there is a problem that the display becomes difficult to see depending on the intensity and direction of sunlight irradiated on the display operation unit 30. Since the intensity and direction of sunlight change depending on the time zone and season during the day, it is difficult to avoid this problem as long as it has an integrated structure.
(2) Further, when the analyzer 10 is installed outdoors such as an oil refinery factory or a chemical factory, the liquid crystal panel of the display operation unit 30 is soiled with oil, dust, etc., and it becomes difficult to read the display of measured values and the like. . When the touch panel method is adopted, the liquid crystal panel is touched with a dirty finger or glove, and the dirt adheres, making it difficult to read.
As described above, when the liquid crystal panel is dirty, it is necessary to wipe it with a soft damp cloth for cleaning, or if it is extremely dirty, the display operation unit 30 needs to be replaced. However, since the display operation unit 30 and the apparatus main body 20 have an integrated structure, there is a problem that it is difficult to wipe and clean depending on the installation state of the apparatus, and it is difficult to replace the display operation unit 30.
(3) Moreover, the measurement output of the analyzer 10 is often continuously recorded on an external recorder or the like. In this case, at the place where the analyzer 10 is installed, the display confirmation and operation on the display operation unit 30 are often performed in a short period of time, such as during a periodic inspection once every several months or when the setting of the apparatus is changed. Thus, since display confirmation and operation are not performed in most periods, there is a problem that the display operation unit 30 consumes unnecessary power during this period.

  An object of the present invention is to provide an analyzer that includes a display operation unit that is easy to see and easy to clean and replace, and that reduces unnecessary power consumption in the display operation unit.

In order to achieve such an object, the invention of claim 1
In an analyzer comprising an apparatus main body, a measurement unit that measures the characteristics of a measurement target, and a display operation unit that displays measurement values measured by the measurement unit and performs operations on various functions.
Remote display attaching / detaching means that enables display and operation on the display operation unit in a state separated from the apparatus main body, and is capable of attaching and detaching the apparatus main body and the display operation unit;
It is provided with.
The invention of claim 2 is the invention of claim 1,
The remote display attaching / detaching means includes an attaching / detaching unit capable of connecting and disconnecting the apparatus main body and the display operation unit via an electric wire.
According to a third aspect of the present invention, in the second aspect of the present invention, the electric wire has flexibility.
The invention of claim 4 is the invention of claim 1,
The remote display attaching / detaching means includes
A wireless communication unit that performs wireless communication between the apparatus main body side and the display operation unit;
A connector capable of connecting and separating the device main body and the display operation unit;
It is provided with.
The invention of claim 5 is the invention of claim 4,
The remote display attaching / detaching means transmits a signal for display and operation in the display operation unit using the connector or the wireless communication unit.
It is characterized by that.
The invention of claim 6 is the invention of claim 5,
The remote display attaching / detaching means transmits the signal using the connector when the apparatus main body and the display operation section are connected, and separates the apparatus main body and the display operation section from the wireless communication section. Transmitting the signal using
The invention of claim 7 is characterized in that in the invention of claim 6,
The remote display attaching / detaching means transmits the signal using the connector or the wireless communication unit based on the connection or separation state determined by the voltage between two terminals provided inside the connector. It is characterized by that.
The invention of claim 8 is the invention of claim 7,
The remote display attaching / detaching means includes a short-circuit member that short-circuits the two terminals when the apparatus main body and the display operation unit are separated, and when short-circuited by the short-circuit member, the wireless communication unit is used to It is characterized in that no signal is transmitted.

  The present invention includes remote display attaching / detaching means that enables display and operation on the display operation unit in a state separated from the apparatus main body, and that allows the apparatus main body and the display operation unit to be attached and detached. For this reason, since display and operation are possible in a distant state, the display operation is easy to see and easy to operate by reducing the influence of sunlight by freely changing the direction of the display operation unit. Further, by separating the display operation unit, the display operation unit can be easily cleaned and replaced. Furthermore, unnecessary power consumption can be reduced by connecting the display operation unit during a period during which display confirmation or operation is performed and by separating the display operation unit during other periods.

It is an example of the perspective view of the external appearance of the analyzer to which this invention is applied. It is an example of the perspective view of the state which pulled out the display operation part of the analyzer of FIG. 1 with the cable. It is an example of the perspective view of the state which isolate | separated the display operation part of the analyzer of FIG. It is another example of the perspective view of the state which isolate | separated the display operation part of the analyzer to which this invention is applied. It is an example of the perspective view showing the state which attaches a contact to the analyzer of FIG. It is an example of the figure explaining the attachment or detachment state of the contact of FIG. It is an example of the perspective view of the external appearance of the analyzer shown by background art. It is an example of the perspective view of the state which opened the door of the analyzer of FIG.

[First embodiment]
An analysis apparatus 100 to which this embodiment is applied will be described with reference to FIGS. FIG. 1 is a perspective view of the external appearance of the analyzer 100, FIG. 2 is a perspective view of a state in which the display operation unit 110 of the analysis device 100 is pulled out by cables 122a and 122b, and FIG. It is a perspective view of a state.

  1 to 3 that are the same as those in FIGS. The description will focus on the attachment / detachment structure between the display operation unit 110 and the apparatus main body 20 (including the door 105), which is a feature of the present embodiment.

  In FIG. 1, the display operation unit 110 is separate from the door 105, unlike the display operation unit 30 in FIG. 7. The outer shape of the door 105 is a U-shape, and the display operation unit 110 is fitted and attached to a notch portion of the U-shape. In addition, the door 105 is attached to the apparatus main body 20 and can be opened and closed similarly to the door 25 of FIG.

  Next, in FIG. 2, a state in which the display operation unit 110 is pulled out from the apparatus main body 20 using the cables (electric wires) 122a and 122b will be described.

  The display operation unit 110 is connected to the apparatus main body 20 via an outlet 121a, a plug 121b, and cables 122a and 122b. The remote display attaching / detaching means 120 is configured by the outlet 121a, the plug 121b, and the cables 122a and 122b.

  One end of the cable 122 a is connected to the control unit 70 through the inside of the apparatus main body 20. The other end of the cable 122a is connected to the outlet 121a.

  The plug 121b connected (inserted) to the outlet 121a is connected to one of the cables 122b, and the other of the cable 122b is connected to the display operation unit 110.

  By such remote display attaching / detaching means 120, the display operation unit 110 that is separate from the apparatus main body 20 can be pulled out from the apparatus main body 20. As a result, the worker can draw the display operation unit 110 to his or her own hand and perform operations such as display confirmation and touching the liquid crystal panel for setting and changing.

  In this state, even if it becomes difficult to see the display on the display operation unit 110 due to the irradiation of sunlight, the operator can reduce the influence of sunlight by changing the direction of the display operation unit 110 at hand, so the display becomes easy to see. , The operation becomes easy. In addition, since the operator can perform the operation with his / her hand, the operation on the display operation unit 110 becomes easier.

  Furthermore, since the cables 122a and 122b have flexibility, the worker can change the direction of the display operation unit 110 more freely.

  Next, a state in which the display operation unit 110 and the apparatus main body 20 are separated by the outlet 121a and the plug 121b will be described with reference to FIG.

  The outlet 121a and the plug 121b constitute an attaching / detaching portion. The plug 121b can be inserted / removed into / from the outlet 121a, whereby the display operation unit 110 and the apparatus main body 20 can be connected and disconnected.

  By separating the display operation unit 110 from the apparatus main body 20, cleaning when the display operation unit 110 becomes dirty and replacement when the display operation unit 110 fails can be easily performed.

  In addition, when the operator does not perform display confirmation or operation, the display operation unit 110 is removed from the apparatus main body 20 and is connected only during the period during which display confirmation or operation is performed. Necessary power can be reduced.

  As an example of the attachment / detachment unit, the description has been given using the outlet 121a and the plug 121b. The attachment / detachment portion is not limited to this, and may be connected and disconnected by, for example, a waterproof circular male / female connector.

  When a plurality of analyzers 100 are installed, one display operation unit 110 can be connected to each analyzer 100 as necessary to perform display confirmation and operation. Accordingly, it is not necessary to prepare display operation units 110 corresponding to the number of analyzers 100, and the cost of the display operation units 110 can be reduced.

[Second Embodiment]
An analysis apparatus 200 to which this embodiment is applied will be described with reference to FIG. FIG. 4 is a perspective view of the analyzer 200 with the display operation unit 210 separated. In FIG. 4, the same components as those in FIG.

  The difference from the first embodiment and the features of this embodiment, mainly the attachment / detachment structure between the display operation unit 210 and the apparatus main body 20 (including the door 105), the signal transmission structure for performing display and operation, etc. Explained.

  In FIG. 4, a female connector 223 a is provided in the U-shaped notch of the door 105. The apparatus main body 20 is provided with a communication processing unit 221a and an antenna 222a. The female connector 223a and the communication processing unit 221a are connected to the control unit 70 through the inside of the apparatus main body 20.

  The display operation unit 210 is provided with a male connector 223b, a communication processing unit 221b, and an antenna 222b. The remote display attaching / detaching means 220 includes the wireless communication units (communication processing units 221a and 221b, antennas 222a and 222b) and connectors (female connector 223a and male connector 223b).

  First, the attachment / detachment structure between the display operation unit 210 and the apparatus main body 20 will be described. The display operation unit 210 is fitted into the U-shaped notch of the door 105 and is connected by the female connector 223a and the male connector 223b. Moreover, it can isolate | separate with the female connector 223a and the male connector 223b.

  Next, a signal transmission structure between the display operation unit 210 and the inside of the apparatus main body 20 in order to perform display and operation with the display operation unit 210 will be described.

  There are two signal transmission systems. One is a mode in which signal transmission is performed by wireless communication between the communication processing unit 221a and the antenna 222a on the apparatus body 20 side and the communication processing unit 221b and the antenna 222b on the display operation unit 210 side (hereinafter referred to as “wireless mode”). ").

  The other is a mode (hereinafter referred to as “fixed mode”) in which signal transmission is performed by wired communication via the female connector 223a and the male connector 223b.

  As shown in FIG. 4, when the display operation unit 210 and the apparatus main body 20 are separated, signal transmission is performed in a wireless mode. On the other hand, when the display operation unit 210 is connected to the apparatus main body 20 by the female connector 223a and the male connector 223b, signal transmission is performed in the fixed mode.

  Whether the signal is transmitted using the wireless mode or the fixed mode is determined based on the voltage between the terminals of the two terminals (first terminal and second terminal) provided in the female connector 223a.

  Specifically, when the display operation unit 210 and the apparatus main body 20 are separated, the voltage between the terminals becomes an open voltage, and the control unit 70 inside the apparatus main body 20 detects this voltage and performs signal transmission in the wireless mode. Control. For example, if the first terminal is pulled up by a resistor to the internal power supply, the open circuit voltage becomes the power supply voltage.

  On the other hand, when the display operation unit 210 is connected to the apparatus main body 20, the voltage between the terminals becomes a short-circuited voltage (for example, zero volts), and the control unit 70 detects this voltage and controls signal transmission in the fixed mode. .

  Such a remote display attaching / detaching means 220 makes it easy to see the display on the display operation unit 210, facilitates the operation, can be easily cleaned and replaced, and is consumed by the display operation unit 210, as in the first embodiment. Unnecessary power can be reduced, and the cost of the display operation unit 210 can be reduced.

  Next, when the display operation unit 210 is removed from the apparatus main body 20 and enters the wireless mode, the setting data for another adjacent analyzer that is not related to the present apparatus is received by mistake, and is erroneously received by itself. There is a risk of setting. A structure for preventing such an erroneous operation will be described with reference to FIGS.

  FIG. 5 is a diagram showing a state in which the contact (short-circuit member) 224 is attached to the female connector 223a of the analyzer 200 shown in FIG. By attaching the contact 224 to the female connector 223a, the above-described erroneous operation can be prevented.

  This will be specifically described with reference to FIG. FIG. 6 is a view showing the attachment / detachment state of the contact 224 and the female connector 223a.

  6A, the first and second terminals 225 and 226 inside the female connector 223a and the contact 224 are connected to short-circuit both terminals.

  In this case, the voltage between the terminals becomes a short-circuited voltage, and the control unit 70 detects this voltage and performs control in the fixed mode instead of the wireless mode, thus preventing erroneous reception of setting data by wireless as described above. In addition, erroneous operation can be prevented.

  On the other hand, when it is desired to set data in this apparatus in the wireless mode, the contact 224 may be removed as shown in FIG. As a result, the inter-terminal voltage becomes an open-circuit voltage, and the control unit 70 detects this voltage and performs control in the wireless mode, so that data can be set in itself.

  After this data setting is completed, the erroneous operation as described above can be prevented by returning and attaching the contact 224 as shown in FIG.

  The present invention can be used for an analyzer such as a gas chromatograph analyzer in addition to a pH meter.

  In addition, this invention is not limited to the above-mentioned Example, In the range which does not deviate from the essence, many change and deformation | transformation are included.

20 device main body 50 power receiving unit 60 measuring unit 70 control unit 100 analyzer 110 display operation unit 120 remote display attaching / detaching means 121a outlet (attaching / detaching unit)
121b Plug (detachable part)
122a, 122b Cable (electric wire)
200 analyzer 210 display operation unit 220 remote display attaching / detaching means 221a, 221b communication processing unit (wireless communication unit)
222a, 222b Antenna (wireless communication unit)
223a Female connector (connector)
223b Male connector (connector)
224 contact (short-circuit member)

Claims (8)

In an analyzer comprising an apparatus main body, a measurement unit that measures the characteristics of a measurement target, and a display operation unit that displays measurement values measured by the measurement unit and performs operations on various functions.
Remote display attaching / detaching means that enables display and operation on the display operation unit in a state separated from the apparatus main body, and is capable of attaching and detaching the apparatus main body and the display operation unit;
An analyzer characterized by comprising:   The analyzer according to claim 1, wherein the remote display attaching / detaching unit includes an attaching / detaching unit capable of connecting and separating the apparatus main body and the display operation unit via an electric wire.   The analyzer according to claim 2, wherein the electric wire has flexibility. The remote display attaching / detaching means includes
A wireless communication unit that performs wireless communication between the apparatus main body side and the display operation unit;
A connector capable of connecting and separating the device main body and the display operation unit;
The analyzer according to claim 1, further comprising: The remote display attaching / detaching means transmits a signal for display and operation in the display operation unit using the connector or the wireless communication unit.
The analyzer according to claim 4. The remote display attaching / detaching means transmits the signal using the connector when the apparatus main body and the display operation section are connected, and separates the apparatus main body and the display operation section from the wireless communication section. Transmitting the signal using
The analyzer according to claim 5.   The remote display attaching / detaching means transmits the signal using the connector or the wireless communication unit based on the connection or separation state determined by the voltage between two terminals provided inside the connector. The analyzer according to claim 6.   The remote display attaching / detaching means includes a short-circuit member that short-circuits the two terminals when the apparatus main body and the display operation unit are separated, and when short-circuited by the short-circuit member, the wireless communication unit is used to 8. The analyzer according to claim 7, wherein no signal is transmitted.

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