CN219496243U - Detector calibration auxiliary device and detector calibration equipment - Google Patents

Abstract

The application relates to a meter calibration auxiliary device and meter calibration equipment relates to analysis and detection technical field, and meter calibration auxiliary device includes the workstation, still includes: the liquid adding mechanism is used for injecting different calibration liquids into the solution cup placed on the workbench; the liquid discharging mechanism is used for extracting the calibrated waste liquid from the solution cup; the moving mechanism is used for driving the solution cup to move on the workbench; the detector calibration equipment comprises a detector, the detector is hung above a workbench, a driving mechanism capable of driving the detector to lift is arranged on the workbench, the detector calibration equipment further comprises the detector calibration auxiliary device, and the detector can stretch into a solution cup and leave through the cooperation of the moving mechanism and the driving mechanism. The method has the advantage of improving calibration efficiency of the detector.

Description

Detector calibration auxiliary device and detector calibration equipment

Technical Field

The application relates to the technical field of analysis and detection, in particular to a detector calibration auxiliary device and detector calibration equipment.

Background

The PH meter is an instrument for measuring the PH value of the solution, and the negative logarithm of the concentration of the hydrogen ions in the solution is the PH value. As a common analysis and detection instrument, the detector is widely applied to the fields of environmental protection, agriculture, industry and the like. In order to improve the detection efficiency, the current detector can perform online automatic detection.

The related art see chinese patent with application number 202023189090.3, it discloses a liquid detergent production is with PH value on-line measuring device, including detecting platform and detergent conveyer pipe, be provided with the support frame on the detecting platform, the support frame includes first backup pad and second backup pad, first backup pad surface is provided with the rotation motor, the output of rotation motor runs through first backup pad and is connected with annular carousel, the lower surface symmetry of annular carousel is provided with first scalable detection pen and the scalable detection pen of second, the below of first scalable detection pen and the scalable detection pen of second is provided with detection case and washs the case.

For the above related art, when the PH meter needs to be calibrated after being used for a period of time, the calibration operation is generally performed manually at present, and the calibration efficiency is low.

Disclosure of Invention

In order to solve the problem of low efficiency of the conventional manual operation calibration PH meter, the application provides a meter calibration auxiliary device and meter calibration equipment.

In a first aspect, the present application provides a calibration auxiliary device for a meter, which adopts the following technical scheme:

a meter calibration aid comprising a table, further comprising:

the liquid adding mechanism is used for injecting different calibration liquids into the solution cup placed on the workbench;

the liquid discharging mechanism is used for extracting the calibrated waste liquid from the solution cup;

and the moving mechanism is used for driving the solution cup to move on the workbench.

Through adopting above-mentioned technical scheme, operating personnel only need place the solution cup on the workstation, control liquid feeding mechanism adds the calibrating liquid to the solution cup in, and moving mechanism drives the solution cup and removes and leave liquid feeding mechanism, stretches into the solution cup with the detector that waits to calibrate in measuring, washs the detector after measuring. The liquid discharging mechanism sucks out the waste liquid after the use in the solution cup and discharges the waste liquid so as to collect the waste liquid and the waste solution cup in a classified way, thereby being beneficial to environmental protection. The new solution cup is replaced, the calibration operation is carried out by repeating the process until the calibration requirement is met, and compared with manual operation, the liquid adding and draining are carried out by the mechanical device in the whole calibration process of the detector, so that the calibration efficiency is improved.

In a second aspect, the present application provides a calibration device for a meter, which adopts the following technical scheme:

the utility model provides a detector calibration equipment, includes the detector, and the detector hangs in the workstation top, installs the actuating mechanism that can drive the detector and go up and down on the workstation, and detector calibration equipment still includes foretell detector calibration auxiliary device, and moving mechanism and actuating mechanism cooperation effect can make the detector stretch into in the solution cup and leave.

The application has the following beneficial technical effects:

1. the detector calibration device replaces manual calibration of the detector, so that the calibration efficiency can be improved, the manual calibration error can be reduced, and the calibration precision can be improved;

2. can carry out centralized processing to the waste liquid in the calibration process, be convenient for waste liquid and waste solution cup classification collection do benefit to the environmental protection.

Drawings

FIG. 1 is a schematic diagram of a calibration device of a detector according to an embodiment of the present application;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a cross-sectional view taken along the A-A plane in FIG. 2;

FIG. 4 is a schematic diagram of the structure of two calibration devices of the detector according to the embodiment of the present application;

FIG. 5 is a top view of FIG. 4;

fig. 6 is a cross-sectional view of the B-B plane in fig. 5.

Reference numerals illustrate:

1. a work table; 11. a support; 12. a bar-shaped hole; 13. a waste discharge pipe; 14. a through hole; 15. a maintenance groove; 16. a cleaning tank; 161. a tub body; 162. a barrel cover; 163. a liquid inlet pipe; 164. an air inlet pipe; 165. a flow passage; 166. a spray hole;

2. a driving mechanism; 21. a mounting frame;

3. a detector;

4. a cup supply mechanism; 41. a bracket; 42. a cup cylinder; 43. a detector;

5. a moving mechanism; 51. a moving block; 511. a receiving groove; 52. a power section; 521. a connecting rod;

6. a solution cup;

7. a liquid adding mechanism; 71. a support frame; 72. a liquid adding tube;

8. a garbage can;

9. a liquid discharge mechanism; 91. a lifting assembly; 92. a connecting frame; 93. a pipette.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-6.

The application discloses a meter calibration device.

Embodiment one:

referring to fig. 1 and 2, the meter calibration device includes a workbench 1, a meter 3 and a solution cup 6, the meter 3 is suspended above the workbench 1, a driving mechanism 2 capable of driving the meter 3 to lift is installed on the workbench 1, the solution cup 6 is placed on the workbench 1, and the meter calibration device further includes: the liquid adding mechanism 7 is used for injecting calibration liquid with different values into the solution cup 6; the moving mechanism 5 is used for driving the solution cup 6 to move on the workbench 1; the movement mechanism 5 and the drive mechanism 2 cooperate to enable the meter 3 to extend into and out of the cuvette 6.

The operating personnel only need place solution cup 6 on workstation 1, control liquid feeding mechanism 7 adds PH calibrator liquid to solution cup 6 in, and mobile mechanism 5 drives solution cup 6 and removes and leave liquid feeding mechanism 7, and actuating mechanism 2 drives the decline of detector 3 and makes detector 3 stretch into solution cup 6 in and measure, and actuating mechanism 2 drives detector 3 and rises and leave solution cup 6 after the measurement finishes. Here, the matching means that the moving mechanism 5 adjusts the position of the cuvette 6 to be close to and below the meter 3, or that the driving mechanism 2 adjusts the position of the meter 3 so that the meter 3 is above the cuvette 6, so that the final meter 3 can extend into the cuvette 6 for detection. For example, when the detector 3 only moves up and down, the moving mechanism 5 drives the solution cup 6 to move on the workbench 1 close to or far away from the detector 3; when the detector 3 moves horizontally relative to the workbench 1 in addition to up and down, the moving mechanism 5 can also push the solution cup 6 to leave the liquid adding mechanism 7, and the driving mechanism 2 drives the detector 3 to approach the solution cup 6 and move to the position above the solution cup 6. Here, the moving mechanism 5 drives the solution cup 6 to move away from the filling mechanism 7, so that the detector 3 is not easy to interfere with the filling mechanism 7 when extending into the solution cup 6, and the solution cup 6 can also not leave the filling mechanism 7 for measurement according to the requirement. After the measurement is finished, the detector 3 is cleaned, the used solution cup 6 and the calibration liquid therein are taken away, the new solution cup 6 is replaced, the PH calibration operation is repeated until the PH calibration operation meets the calibration requirement, and compared with the manual operation, the whole detector 3 is calibrated through a mechanical device, so that the calibration efficiency is improved.

The detector 3 may be a PH meter, the corresponding calibration solution may be a PH calibration solution, the PH value of the PH calibration solution may be at least one of 9.18, 4.00, 6.86, 7.00, and 10.00, and the PH calibration solution may be a solution of other standard PH values as required.

The detector 3 may also be a concentration meter, and the corresponding calibration liquid is a concentration calibration liquid.

The workbench 1 is fixedly provided with a support 11, and the driving mechanism 2 can be arranged on the support 11.

Referring to fig. 2 and 3, the moving mechanism 5 includes a moving block 51 and a power part 52, the power part 52 is connected to the table 1, the power part 52 drives the moving block 51 to slide relative to the table 1, and the moving block 51 has a receiving groove 511 for placing the cuvette 6. The moving block 51 may have a rectangular parallelepiped structure, and the horizontal contour of the moving block 51 may be elliptical, diamond-shaped, S-shaped, or the like, as needed.

The power unit 52 drives the moving block 51 to periodically reciprocate along the same predetermined path on the table 1. Here, the power portion 52 drives the moving block 51 to move in a linear direction, and in other embodiments, the moving track of the moving block 51 may be circular, and a sheave mechanism may be disposed between the power portion 52 and the moving block 51. In other embodiments, the movement track of the moving block 51 may also be elliptical, rectangular, diamond-shaped, or the like.

The power unit 52 includes an electric cylinder fixed to the table 1, and the moving block 51 is fixed to a piston rod end of the electric cylinder. In order to enable the movable block 51 to be accurately stopped at different positions, the electric cylinders may be three-section or four-section telescopic electric cylinders. In other embodiments, the power unit 52 may be one of an electric telescopic rod, an oil cylinder, and an air cylinder.

Referring to fig. 2 and 3, in order to reduce the space occupied by the power unit 52 on the upper surface of the table 1, the power unit 52 may be fixed to the bottom surface of the table 1 by bolts, the table 1 is provided with a through bar hole 12, a connecting rod 521 is fixed to the end of a piston rod of the electric cylinder, the connecting rod 521 passes through the bar hole 12 and can relatively move along the length direction of the bar hole 12, and the other end of the connecting rod 521 is fixed to the bottom of the moving block 51.

In other embodiments, a sliding groove may be formed on the table 1, and the moving block 51 is located in the sliding groove and slides relative to the table 1. In other embodiments, the bottom of the solution cup 6 may be a magnetic member, for example, the solution cup 6 has magnetism as a whole or a magnetic sheet is fixed on the bottom wall, and the linkage between the moving block 51 and the solution cup 6 is transmitted by magnetic force.

In order to facilitate rapid waste discharge of the used solution cup 6, the workbench 1 may be connected with a waste discharge channel, and the solution cup 6 can leave the workbench 1 through the waste discharge channel after leaving the accommodating groove 511. The waste discharge passage may be a waste discharge pipe 13 fixed to the table 1. The waste pipe 13 may be provided at the edge of the table 1, or the inlet of the waste pipe 13 may be located at the middle of the table 1.

In order to directly utilize the gravity of the solution cup 6 to discharge waste, the workbench 1 is provided with a through hole 14, and the bottom of the accommodating groove 511 is open; when the accommodation groove 511 is aligned with the through hole 14, the cuvette 6 can be detached from the bottom of the accommodation groove 511 and fall from the through hole 14. The waste pipe 13 can also be fixed at the bottom of the through hole 14 of the workbench 1.

In order to conveniently collect the waste solution cups 6 in a concentrated manner, pollution to the outside is reduced, a garbage can 8 can be arranged below an outlet of the waste discharge channel, and the garbage can 8 can be placed on the ground below the workbench 1. So that the cup 6 falls from the through hole 14 and then falls directly into the dustbin 8.

In order to timely know that the solution cup 6 in the garbage can 8 is full, an infrared sensor can be arranged at the outlet of the waste discharge channel.

Referring to fig. 2 and 3, the filling mechanism 7 includes at least two filling pipes 72, the filling pipes 72 are used for connecting with a PH calibration liquid source, and a liquid outlet of the filling pipes 72 is located above a moving path of the moving block 51. On one hand, the liquid adding pump can be used for automatically adding the calibration liquid, so that the liquid adding efficiency is improved; on the other hand, the quantity and the types of the calibration liquid can be flexibly adjusted according to different calibration points. Here, the filling pipes 72 are arranged side by side in four. Each of the filling pipes 72 is connected to a PH adjusting liquid. The number of the filling pipes 72 may be adjusted, for example, 2, 3, 5, or 6, etc., according to the kind of the calibration liquid selected.

The filling mechanism 7 may further include a support 71 fixed to the table 1, and a filling tube 72 is connected to the support 71.

The meter calibration further comprises a cup supply mechanism 4, the cup supply mechanism 4 comprising a cup cartridge 42 capable of holding a plurality of stacked solution cups 6, the cup cartridge 42 being connected to the table 1.

The cup supply mechanism 4 further comprises a bracket 41 fixed on the workbench 1, the cup cylinder 42 is fixed on the bracket 41, and the distance between the bottom end of the cup cylinder 42 and the workbench 1 can only be used for removing the cup cylinder 42 from the single solution cup 6. This enables the use of one solution cup 6 at a time. The cup tube 42 may be a square tube, the inscribed circle diameter of which corresponds to the maximum diameter of the solution cup 6, and the bracket 41 may be an L-shaped plate.

To facilitate automatic feeding, the moving block 51 passes under the cup cylinder 42, so that when the accommodating groove 511 is located at the cup cylinder 42, the solution cup 6 falls into the accommodating groove 511, and the bottom of the solution cup 6 is supported by the table surface of the table 1. When the moving block 51 continues to move so that the accommodating groove 511 is staggered from the cup cylinder 42, the solution cup 6 in the cup cylinder 42 descends by gravity, and the lowermost one of the solution cups 6 is supported on the moving block 51.

The cup supply mechanism 4 further comprises an infrared sensor which is connected to the bracket 41 and is positioned between the bottom end of the cup cylinder 42 and the workbench 1. The infrared sensor may be connected to an external computer or alarm to give a reminder when no solution cup 6 is detected in the cup holder 42.

For convenient observation, the side wall of the cup cylinder 42 may be provided with an observation port along the length direction.

To protect the detector 3 that is temporarily not used after calibration, a maintenance groove 15 is fixed to the table 1. According to need, in order to reduce the liquid that cleans the detector 3 after each calibration from polluting the table surface of the workbench 1, the workbench 1 may be further fixed with a cleaning tank 16, and the cleaning tank 16 may be a cleaning and drying barrel with a drying function.

Referring to fig. 1 and 2, the driving mechanism 2 includes an X-axis moving assembly, a Y-axis moving assembly, and a Z-axis moving assembly, and the detecting gauge 3 is connected to the Z-axis moving assembly, and the moving assembly may be a linear slide rail or a screw mechanism, so that the driving mechanism 2 can move along the X-axis, the Y-axis, and the Z-axis directions, and thereby can drive the detecting gauge 3 to move in three directions. The Z-axis moving assembly is fixed with a mounting frame 21, and the detector is fixed on the mounting frame 21 in a manner including but not limited to threaded connection, plugging and the like. In other embodiments, the driving mechanism 2 may also include a circumferential rotation assembly, which may include a rotation cylinder or a rotation motor, and a lifting assembly, which may have the same structure as the Z-axis moving assembly.

When the moving path of the moving block 51 is circular, the driving mechanism 2 may also include only the Z-axis moving assembly.

The driving mechanism 2 may further include a Z-axis moving assembly and an X-axis moving assembly as needed; or the drive mechanism 2 includes a Z-axis moving assembly and a Y-axis moving assembly.

The working process of the meter calibration device is as follows:

1. the system is started, and a sensor detects whether the cup supplying mechanism 4 is full of the solution cup 6 and the garbage can 8. If the working condition is met, starting the next operation, if the reminding adjustment is not met, and after the adjustment, starting the next operation.

2. The driving mechanism 2 drives the detector 3 to translate and move up and down, so that the detector is cleaned in the cleaning tank 16 and dried in a timing way, meanwhile, the moving mechanism 5 pushes out the solution cup 6 from the cup supplying mechanism 4 to the position below the liquid adding mechanism 7, and the calibrating liquid is pushed to a gap between the through hole 14 and the liquid adding mechanism 7 by 5 after being added.

3. The detector 3 is inserted into the solution cup 6 filled with the calibration solution to measure the PH value, the solution cup 6 filled with the calibration solution is removed after the measurement is completed and returned to the cleaning tank 16 to be cleaned and dried, the movement mechanism 5 pushes the solution cup 6 filled with the measured calibration solution to the through hole 14 and automatically falls into the garbage can 8, and the movement mechanism 5 returns to the cup taking position below the cup supplying mechanism 4.

4. And (3) repeating the step (3) according to the requirement of the calibration method until the PH meter calibration is completed.

Embodiment two:

referring to fig. 4 and 5, a meter calibration device is different from the first embodiment in that the meter calibration device further includes a liquid discharging mechanism 9, and the liquid discharging mechanism 9 is disposed close to the liquid charging mechanism 7 and on one side of the moving block 51. The calibrated waste liquid is drawn out of the solution cup 6 by the liquid discharge mechanism 9, and then the solution cup 6 is pushed into the trash can 8 by the moving mechanism 5.

The liquid draining mechanism 9 comprises a lifting component 91, a connecting frame 92 and a liquid sucking pipe 93, wherein the liquid sucking pipe 93 is arranged above a moving path of the moving block 51, the connecting frame 92 can be an L-shaped frame, one end of the connecting frame 92 is perpendicular to the moving direction of the moving block 51 and is horizontally arranged, the other end of the connecting frame 92 is vertically arranged and connected with the lifting component 91, a port of the liquid sucking pipe 93 is fixed at the horizontal end of the connecting frame 92, and the liquid sucking pipe 93 is connected with an external pump body.

The lifting assembly 91 drives the connecting frame 92 to lift up, so that the liquid suction pipe 93 does not influence the movement of the moving block 51; after calibration, the moving mechanism 5 drives the moving block 51 to move so that the solution cup 6 moves right below the liquid suction pipe 93, then the lifting assembly 91 drives the connecting frame 92 to descend so that the end part of the liquid suction pipe 93 stretches into the solution cup 6, and the external pump body works and discharges waste liquid in the solution cup 6 through the liquid suction pipe 93; the movement mechanism 5 then pushes the solution cups 6 into the trash can 8, enabling sorting of the waste solutions and waste cups.

Here, the lifting assembly 91 may be an air cylinder, which is fixed to the table 1 by bolts. In other implementations of the present embodiments, the lifting assembly 91 may also be one of a hydraulic cylinder, a linear motor, a motor and lead screw nut mechanism, and a linear guide.

In order to lower the connection frame 92 as close to the table 1 as possible, a relief groove is provided in the table 1, into which the vertical ends of the connection frame 92 and the support frame 71 can extend.

As shown in fig. 5, the liquid discharging mechanism 9 is located between the liquid charging mechanism 7 and the cup supplying mechanism 4, and the sequence of the stations of the moving block 51 of the moving mechanism 5 is: through holes 14 below the cup cylinder 42 of the cup supply mechanism 4, below the liquid adding pipe 72 of the liquid adding mechanism 7, below the liquid sucking pipe 93 of the liquid discharging mechanism 9 and on the workbench 1.

It will be appreciated that, in other embodiments of the present application, the liquid draining mechanism 9 may be disposed between the through hole 14 and the liquid feeding mechanism 7, so that the moving block 51 can sequentially move from below the cup cylinder 42 of the cup mechanism 4 to the through hole 14 on the workbench 1, and the power part 52 does not need to drive the moving block 51 to retract.

In order to facilitate the addition of the maintenance liquid to the maintenance tank 15, the maintenance tank 15 may be provided at the end of the moving block 51.

The puddle or PH calibration device is cleaned in the cleaning tank 16 because the remaining liquid from the puddle or PH calibration device contaminates and affects the solution being dispensed.

Referring to fig. 6, the washing tub 16 includes a tub body 161 and a tub cover 162, a top end of the tub body 161 is opened, both ends of the tub cover 162 are opened, and the tub cover 162 is fixedly fitted to the opened end of the tub body 161. A flow passage 165 is formed between the barrel cover 162 and the barrel body 161, a plurality of penetrating spray holes 166 are formed on the side wall of the barrel body 161 corresponding to the flow passage 165, and the spray holes 166 are communicated with the flow passage 165. The side wall of the tub 162 is connected with a liquid inlet pipe 163 and an air inlet pipe 164, and the liquid inlet pipe 163 and the air inlet pipe 164 are respectively communicated with the flow passage 165.

When the stirring rod or the PH calibrating device is cleaned, the stirring rod or the detecting meter 3 stretches into the cleaning tank 16, the liquid inlet pipe 163 is filled with cleaning liquid such as deionized water, the cleaning liquid enters the plurality of spray holes 166 through the flow channels 165, and the cleaning liquid is sprayed out of the plurality of spray holes 166 to clean the stirring rod or the detecting meter 3, so that residual liquid is removed. The liquid inlet pipe 163 is closed, high-pressure gas is introduced through the gas inlet pipe 164, and the gas is sprayed out of the plurality of spray holes 166 after passing through the flow passage 165, so that the drying efficiency is improved.

In order to improve the cleaning effect, the number of the flow passages 165 may be 2 or more, the flow passages 165 may be circular and distributed along the axis of the tub 161, the flow passages 165 may be connected, or only one flow passage 165 may be spirally distributed on the outer wall of the tub 161.

The fixing manner of the tub 161 and the tub cover 162 includes, but is not limited to, integral molding, bolting, screwing, interference fit, clamping, welding, bonding, etc.

When the tub 161 and the tub 162 are fixed as one body by two parts, in order to improve the sealing performance of the contact position of the tub 161 and the tub 162, sealing rings such as rubber rings are provided on both sides of the tub 161 and the tub 162 at the flow path 165, and sealing grooves for placing the sealing rings are provided on the outer wall of the tub 161 or the inner wall of the tub 162.

The spray holes 166 may be disposed along a radial direction of the tub 161, and in order to reduce liquid splashing out of the washing tank 16 during washing, it is preferable that the spray direction of the spray holes 166 be inclined away from the open end of the tub 161.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (10)

1. A meter calibration aid comprising a table (1), characterized in that it further comprises: the liquid adding mechanism (7) is used for injecting different calibration liquids into the solution cup (6) placed on the workbench (1);

a liquid discharge mechanism (9) for extracting the calibrated waste liquid from the solution cup (6);

the moving mechanism (5) is used for driving the solution cup (6) to move on the workbench (1).

2. The meter calibration support of claim 1 wherein: the liquid adding mechanism (7) comprises at least two liquid adding pipes (72), the liquid adding pipes (72) are used for being connected with a PH calibration liquid source, and a liquid outlet of each liquid adding pipe (72) is positioned above a moving path of the moving block (51).

3. The meter calibration support of claim 1 wherein: the liquid draining mechanism (9) comprises a lifting assembly (91), a connecting frame (92) and a liquid sucking pipe (93), wherein the connecting frame (92) is arranged between the lifting assembly (91) and the liquid sucking pipe (93), the end part of the liquid sucking pipe (93) is fixed on the connecting frame (92), and the lifting assembly (91) can drive the connecting frame (92) to move close to or far away from the workbench (1).

4. A meter calibration support as claimed in any one of claims 1 to 3, wherein: the moving mechanism (5) comprises a moving block (51) and a power part (52) which are connected with each other, the power part (52) is connected to the workbench (1), the power part (52) drives the moving block (51) to slide relative to the workbench (1), and the moving block (51) is provided with a containing groove (511) for placing the solution cup (6).

5. The meter calibration support of claim 4 wherein: the workbench (1) is connected with a waste discharge channel, and the solution cup (6) can leave the workbench (1) through the waste discharge channel after leaving the accommodating groove (511).

6. The meter calibration support of claim 4 wherein: the workbench (1) is provided with a through hole (14), and the bottom of the accommodating groove (511) is open; when the accommodating groove (511) is aligned with the through hole (14), the solution cup (6) can be separated from the bottom of the accommodating groove (511) and fall from the through hole (14).

7. The meter calibration support of claim 4 wherein: the power unit (52) drives the moving block (51) to periodically reciprocate on the table (1) along the same predetermined path.

8. The meter calibration support of claim 4 wherein: the power unit (52) comprises an electric cylinder fixed to the table (1), and the moving block (51) is connected to the piston rod end of the electric cylinder.

9. A meter calibration support as claimed in any one of claims 1 to 3, 5 to 8, wherein: the meter calibration auxiliary device further comprises a cup supply mechanism (4), wherein the cup supply mechanism (4) comprises a cup barrel (42) capable of containing a plurality of stacked solution cups (6), and the cup barrel (42) is connected to the workbench (1).

10. The utility model provides a detector calibration equipment, includes detector (3), and detector (3) hang in workstation (1) top, installs on workstation (1) and can drive actuating mechanism (2) that detector (3) go up and down, its characterized in that: the meter calibration device further comprises a meter calibration aid according to any one of claims 1-9, the movement mechanism (5) and the drive mechanism (2) cooperating to enable the meter (3) to extend into and out of the cuvette (6).