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4.2 Force Transducer Replacement

If the force transducer breaks and needs to be replaced the 560TP need to be shipped back to DMT for replacement. The ship-

ping address is:

Danish Myo Technology A/S

Skejby Science Center

Skejbyparken 152

DK-8200 Aarhus N.

Denmark

Tel: +45 8741 1100

Please contact your Sales Representative and request a Return to Manufacturer Authorisation (RMA) Number to attach to your

shipping documentation.

4.3 Maintenance

The 560TP is a very delicate and sophisticated piece of research equipment. DMT recommends that the following sections are

read carefully and that the instructions are followed at all times.

Force transducer:

The force transducer is the most delicate and fragile component of the 560TP. Extreme care must be used

when handling or touching the force transducer. As part of daily maintenance, inspect the grease around the transducer pin ex-

tending from the transducer compartment pinhole before starting any experiment. Insufficient grease in this area will allow buffer

and water to enter the transducer compartment and cause irreparable damage to the force transducer.

IMPORTANT NOTES

• DMT RECOMMENDS THAT THE HIGH VACUUM GREASE SEALING THE TRANSDUCER PINHOLE IS CHECKED AND RE-

PLACED AT LEAST ONCE A WEEK, ESPECIALLY IF THE MYOGRAPH IS USED FREQUENTLY

• DMT TAKES NO RESPONSIBILITY FOR THE USE OF ANY OTHER KIND OF GREASE OTHER THAN THE GREASE SUPPLIED

BY DMT FOR THIS PURPOSE

• DMT TAKES NO RESPONSIBILITY FOR ANY KIND OF DAMAGE CAUSED BY MISHANDLING OF THE FORCE TRANSDUCERS

CHAPTER 4

Содержание 560TP

Страница 1: ...USER MANUAL VOL 2 0 T I S S U E P U L L E R 5 6 0 T P ...

Страница 2: ...2 TISSUE PULLER 560TP USER MANUAL ...

Страница 3: ...as possible accurate at the time of printing Changes may have been made to the software and hardware it describes since then New information may be supplied separately This documentation is provided with the Tissue Puller 560TP No part of this document may be reproduced by any means without the prior written permission of Danish Myo Technology A S Copyright Danish Myo Technology A S ...

Страница 4: ...sue Puller System 560TP 7 2 2 Setting up step by step 7 2 3 Configuration of the MyoPULL and 560TP System 8 2 4 Force Calibration 9 Chapter 3 The MyoPULL Menus 11 3 1 MyoPULL Menu 11 3 2 View Menu 12 3 3 Experimental setup 12 Chapter 4 Maintenance 14 4 1 Checking the force transducer 14 4 2 Force Transducer Replacement 15 4 3 Maintenance 15 Appendix 1 Reading a millimetre micrometer 16 Appendix 2 ...

Страница 5: ...lightning storms or when unused for long periods of time The 560TP is delivered with an external 100 240V AC to 24V DC ADAPTER Protect the power ADAPTER and cord from being walked on or pinched Particularly at power plugs and at the point where they connect to the apparatus Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way inclu...

Страница 6: ...material for any future transport of the 560TP System In case of transport and the original packing material is unavailable please contact DMT Sales Department for advice and packing instructions After unpacking your new 560TP System please use the following list to check that the system is complete 1 Tissue Puller 560TP System unit electromechanical 1 USB cable 1 power cord 24V Powerconverter 1 b...

Страница 7: ...IEW 1 1 Tissue Puller 560TP front and rear Figure 1 1 Tissue Puller 560TP front Figure 1 2 Tissue Puller 560TP back rear USB port ON OFF switch Power inlet 24VDC 0 75A V on center pin Micrometer Motor Force transducer Force transducer hook Jaws Power ON indicator ...

Страница 8: ...etting up step by step To set up the 560TP System as illustrated in figure 2 1 1 Connect the 560TP to the PC with the supplied USB cable 2 Follow the supplied Quick Installation Guide for MyoPULL 3 Connect the supplied 24V power converter to the 560TP 4 Turn on the power to the 560TP 5 Start the MyoPULL software on the PC The following MyoPULL screen should now be visible on the screen Figure 2 2 ...

Страница 9: ... show the current force of the force trans ducer Zero force Zero the force transducer Calibrate Force Force calibrate the force transducer see chapter 2 4 Figure 2 3 MyoPULL Software Puller controller at the far right Figure 2 4 Puller Controller close up The 560TP will not remember the position of the micrometer after the MyoPULL software has been closed and the 560TP has been turned off Therefor...

Страница 10: ...rst time The force transducer calibration is described in the following section 1 Click on the Calibrate Force button on the right hand side of the MyoPULL software window see figure 2 5 2 Read the calibrate information on the screen carefully Please note that even very small vibrations or slight instability of mounting supports will affect the calibration 3 Zero the force by clicking the Zero For...

Страница 11: ...y Important Please note that even very small vibrations or slight instability of mounting supports will affect the calibration 8 Enter the corresponding force see figure 2 7 in mN of the weight placed on the force transducer 1 gram equals 9 81mN and therefore a 5 g weight is 5x 9 81mN 49 05mN 9 Press the Set Force button and the 560TP force transducer has now been calibrated 10 To complete and sto...

Страница 12: ...osition sub menu Start Position Enter the start position of the motor in µm Move to Start Position Activating this button will move the micrometer to the position entered in the Start Position Selection sub menu Add Selected Range Select a part of the curve of interest by dragging the mouse across the curve The maximum force stress and distance of the selected part of a Pull curve is transferred t...

Страница 13: ...µm the tissue is to be stretched in Pull Range 3 Enter the velocity 0 150µm sec the motor is to use during the stretch in Target Velocity 4 If you want to repeat a stretch enter the micro positioner position in the Start Position box and press Enter 5 If you want to display the experiment as a Stress Strain Graph enter the values for segments length segment thickness and segment diameter all in µm...

Страница 14: ...th Test Curve The force mN readings are shown on the Y axis and the displacement in µm is shown on the X axis Figure 3 4 Example of a Stress Strain Test Curve The stress YY readings are shown on the Y axis and the strain in mN mm2 is shown on the X axis ...

Страница 15: ...ibration of the force transducer as described in chapter 2 4 During the calibration monitor the relative force reading values in the FORCE CALIBRATION sub menu in the MyoPULL Software The normal operating values for the force transducer during calibration should be between 3000 and 3500 If the value is 0 a single digit or a three digit number the force transducer is broken and needs to be replaced...

Страница 16: ...transducer is the most delicate and fragile component of the 560TP Extreme care must be used when handling or touching the force transducer As part of daily maintenance inspect the grease around the transducer pin ex tending from the transducer compartment pinhole before starting any experiment Insufficient grease in this area will allow buffer and water to enter the transducer compartment and cau...

Страница 17: ... 1 1 Note that the thimble has stopped at a point beyond 10 on the sleeve indicating 10000 µm 10 mm 2 Note that there is no mark completely visible between the 10 mm mark and the thimble 3 Read the value on the thimble corresponding to the intersection with the horizontal line on the sleeve A Reading on sleeve B No additional mark visible C Thimble reading Total reading Example 2 1 Note that the t...

Страница 18: ...splacement range 0 50 mm 5 cm or 50 000 μm Displacement resolution 1 μm Max displacement speed 150 μm second 9 mm minute Weight calibration Semi automatic via software Data communication USB 2 0 Voltage 100 to 240 VAC auto 50 60 Hz via external power supply Data Acquisition software MyoPULL software Requirements Windows 7 32 and 64 bit Optional accessories Mounting supports Different mounting supp...

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