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TO-BA-e-2020

9

Sound velocity

Material

Sound velocity

in/µs

m/s

Aluminium

0,250

6340

– 6400

Steel, usual

0,233

5920

Stainless steel

0,226

5740

Brass

0,173

4399

Copper

0,186

4720

Iron

0,233

5930

Cast Iron

0,173

– 0,229

4400

– 5820

Lead

0,094

2400

Nylon

0,105

2680

Silver

0,142

3607

Gold

0,128

3251

Zinc

0,164

4170

Titanium

0,236

5990

Tin

0,117

2960

Epoxy resin

0,100

2540

Ice

0,157

3988

Nickel

0,222

5639

Plexiglas

0,106

2692

Polystyrene

0,092

2337

Porcelain

0,230

5842

PVC

0,094

2388

Quartz glass

0,222

5639

Rubber, vulcanised

0,091

2311

Teflon

0,056

1422

Water

0,058

1473

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Содержание TO-EE

Страница 1: ...lingen e mail info kern sohn com Phone 49 0 7433 9933 0 Fax 49 0 7433 9933 149 Internet www sauter eu Instruction Manual Multimode Ultrasonic Material Thickness Gauge SAUTER TO Version 2 0 04 2020 GB TO BA e 2020 PROFESSIONAL MEASURING ...

Страница 2: ... screen 7 2 2 Control panel 8 3 Preparation for measurement 8 3 1 Selection of the converter 8 3 2 Condition and preparation of surfaces 10 4 Operation 11 4 1 Power supply 11 4 2 Connecting the probe 11 4 3 Switching on the device Power ON 11 4 4 Configuration of the standby settings 12 5 Operation 13 5 1 Setting the working mode 13 5 2 Selection of the probe 13 5 3 Function Probe Zero 13 5 4 Cali...

Страница 3: ... 1 Measurement procedure 26 6 2 Wall measurement 27 7 Service 27 8 Transport and storage 27 9 Sound velocity 28 10 Instructions for use 29 10 1 Measurement of large and small pipes 29 10 2 Measurement of hot surfaces 29 10 3 Measuring of laminate materials 30 10 4 Measurement through paint layers and coating 30 10 5 Suitability of materials 30 10 6 Coupling agents 31 ...

Страница 4: ...d thickness values can be stored in the non volatile memory A maximum of 100 data sets per group are permitted Two AA alkaline batteries are used as power source This ensures continuous operation of at least 100 hours standard setting for brightness Energy saving functions Display Standby and Auto Power Off are available With the internal Bluetooth module a wireless connection with PC or other mob...

Страница 5: ...urement N05 90 5 10 1 600 0 mm in steel Φ 20 mm 3 0 mm Normal measurement N07 7 6 0 65 200 0 mm in steel Φ 15 mm 2 0 mm For measurements of thin pipe walls or pipe walls with low curvature HT5 5 12 1 600 0 mm in steel 30 mm For measurement at high temperatures below 300 C P5EE 5 10 P E 2 600 mm E E 3 60 mm Φ 20 mm 3 0 mm Normal measurement and thickness measurement via the paint or coating thickne...

Страница 6: ... 1 1 10 Probe N05 5 MHz 11 Probe N07 7 MHz 12 Probe HT5 5 MHz 1 5 Working conditions Operating temperature 0 C 50 C Storage temperature 20 C 70 C Relative humidity 80 At the place of use vibrations strong magnetic fields corrosive media and heavy dust accumulation must be avoided 2 Keypad and display 1 2 1 Ekran główny 1 Housing 2 Record Probe Zero 3 Keyboard 4 TFT display 5 USB connection 6 Pulse...

Страница 7: ...elocity Battery Indicates the remaining capacity of the battery Thickness Last measurement result Unit Unit system mm or inch Diff value Measurement result when working in Diff mode Time System time Status USB communication status Operation indicates which process is already active Record displays the selected data group and the number of data records Couple Displays the coupling status Nominal Th...

Страница 8: ...ucer for the application is essential to ensure accurate and reliable measurements The following sections highlight the important characteristics of transducers that should be considered when selecting a transducer for a particular application In general the best transducer for a given application is a sensor that emits sufficient ultrasonic energy into the material to be measured so that a strong...

Страница 9: ...a Measuring on a curved surface such as an engine cylinder wall may require the use of a transducer with a suitably curved contact area Temperature of the material When measuring on very hot surfaces high temperature transducers must be used These transducers are manufactured using special materials and techniques that allow them to withstand high temperatures without damage In addition care must ...

Страница 10: ...reliable measurements The surface to be measured should be clean and free of small particles rust or scale The presence of such obstacles prevents the transducer from contacting the contact surface correctly Often a wire brush or scraper will help to clean the surface In extreme cases rotary grinders or grinding wheels can be used However care must be taken to avoid surface cracks that prevent pro...

Страница 11: ...y established It is also important that the instrument is properly configured to work with the installed probe 4 3 Switching on the device Power ON To start the unit press the key until the display is activated While the unit is starting a start up screen the display shows the serial number of the unit the installed software version the date and time of the system The initial screen of the machine...

Страница 12: ... low level and the CPU operates at a lower frequency This has no effect on the data or memory Pressing any button or taking a measurement will return the unit to the operating mode and reset the default brightness Power off state After 2 minutes default setting the unit will go from standby mode to power off mode The unit and display are off and consume very little power Pressing any key will prev...

Страница 13: ...may be incorrect In the Probe Model dialog box use the and keys to scroll to the currently used probe model Then press the or F3 key to confirm the selection Press to cancel the operation and exit the dialog box 5 3 Function Probe Zero The key is used to zero the instrument in the same way as a mechanical micrometer is zeroed If the gauge is not set to zero correctly some error may occur in all me...

Страница 14: ...rform the Probe Zero function when the instrument is turned on and when using another transducer This will ensure that the instrument is always zeroed correctly In Probe Zero mode press to exit the Zero function and return to the measuring mode 5 4 Calibration of the sound velocity In order for the measuring instrument to perform accurate measurements it must be set to the correct sound velocity f...

Страница 15: ...the specified material to be measured the exact thickness of which is known e g by measuring it in a different way 1 Perform the Probe Zero function with a standard 4 00 mm plate 2 Apply the coupling agent to the test sample 3 Press the transducer against the sample and make sure that the transducer is flat against the surface of the sample The display should show a certain thickness value and the...

Страница 16: ...transducer is flat against the surface of the sample The display should show a possibly incorrect thickness value and the link status indicator should be steady 4 After you have achieved a stable measured value remove the transducer If the displayed thickness differs from the value displayed during transducer coupling repeat the step in section 3 5 Press the or key to display the Input Nominal Thi...

Страница 17: ...o be measured Normally a single drop of coupling agent is sufficient After applying the coupling agent press the transducer contact surface down firmly against the area to be measured The Coupling Status Indicator should be displayed and the display should show a numerical indication When the unit is properly set to zero and the correct sound velocity the digit on the display will show the actual ...

Страница 18: ...hrough very thick resist films or coatings can result in the resist film or coating being measured rather than the actual material It is the sole responsibility of the user of the instrument to use the instrument correctly and to detect such effects 5 6 Set View Mode Three view modes can be selected to display the measured value Normal Mode Scan Mode and Diff Mode Normal Mode Normal Mode As shown ...

Страница 19: ...easurements However in Scan Mode the Meter takes more than ten measurements per second and displays the readings during scanning While the transducer is in contact with the material to be measured the gauge tracks the minimum and maximum values determined The transducer can be scrubbed over a surface and all short signal interruptions are ignored 5 7 Set normal thickness In differential measuring ...

Страница 20: ... the key or the F3 key to confirm the setting Press the key to cancel the change and exit the mode 5 9 Set resolution The resolution of the display of the measuring instrument can be set within a range of 0 1 mm or 0 01 mm When the resolution is set to 0 01 mm the surface of the test piece should be smooth to obtain accurate test results When measuring rough surfaces or coarse grained materials it...

Страница 21: ...tored data records This function allows the user to display records of a desired data group that was previously stored in memory The procedure is as follows Activate the Memory Manager function right figure Press or to move the cursor press or F3 to display the View Record Data dialog box see the following figure Press or to move the cursor to the desired record Press F3 to delete the selected rec...

Страница 22: ...ps the newly selected data group is set as the current data group for storing new measurement results 5 10 4 Delete data group It may be necessary to completely delete all measurements of an entire data group In this way the user can create a new list of measurements starting from memory location no 00 The procedure is described in the following steps Activate the Memory Manager function Press or ...

Страница 23: ...essing the arrow keys Press the key or the F3 key to confirm the setting Press the button to cancel the change and exit the dialog box With lower brightness less power is consumed and therefore the operating time is extended Note Reduce the brightness of the LCD screen in good lighting conditions to save energy For the settings refer to the right figure of the Display Standby Delay dialog box Pres...

Страница 24: ...16 Change system of units The device supports both the metric and imperial unit system With the Unit System option selected press System Configuration in the System Configuration dialog box to switch between imperial and metric units 5 17 Setting the date and time To create correct documentation you should always ensure that you use the correct date and time settings Open the System Time dialog bo...

Страница 25: ...ng language of the measuring instrument can be selected Use the arrow keys and the F2 key to select the operating language Press the key or the F3 key to confirm the selection Press the key to cancel the selection and leave the dialog box Note The user can also change the operating language during the startup process in the home screen ...

Страница 26: ...he unit activate the System Reset function The dialog box on the right appears Press the or the F3 key to confirm the reset operation Press the F1 key to cancel the reset NOTE The effects of resetting the unit may be irreversible No button should be pressed during the reset process 5 21 USBcommunication The device has a USB port in the upper left corner The USB cable can be used to connect the uni...

Страница 27: ...value of the tested part being the minimum value 6 2 Wall measurement During the measurement the probe parting line can run along the pipe axis or the vertical pipe axis For larger pipe diameters the measurement must be carried out on the vertical axis For smaller pipe diameters the measurement shall be carried out in both directions with the thickness value being the minimum value 7 Service If th...

Страница 28: ...0 233 5930 Cast Iron 0 173 0 229 4400 5820 Lead 0 094 2400 Nylon 0 105 2680 Silver 0 142 3607 Gold 0 128 3251 Zinc 0 164 4170 Titanium 0 236 5990 Tin 0 117 2960 Epoxy resin 0 100 2540 Ice 0 157 3988 Nickel 0 222 5639 Plexiglas 0 106 2692 Polystyrene 0 092 2337 Porcelain 0 230 5842 PVC 0 094 2388 Quartz glass 0 222 5639 Rubber vulcanised 0 091 2311 Teflon 0 056 1422 Water 0 058 1473 ...

Страница 29: ...speed of sound propagation decreases For most applications with surface temperatures below about 100 C no special procedures are required At temperatures above 100 C the change in the speed of sound of the material to be measured has a significant effect on the ultrasonic measurement At such elevated temperatures it is advisable to perform a calibration procedure on a sample of known thickness tha...

Страница 30: ... and coating Measuring through paint layers and coating is also unique in that the speed of sound propagation for paint layers and coating differs significantly from the speed of sound propagation for the actual measured material A perfect example would be a mild steel pipe with about 0 6 mm coating on the surface where the speed of sound propagation is 5920 m s for the pipe and 2300 m s for the c...

Страница 31: ...ater and may therefore be undesirable Other suitable coupling agents for measurements at normal temperatures are water various oils and greases gels and silicone fluids Measurements at elevated temperatures require specially formulated heat resistant couplants When measuring ultrasonic thickness the instrument may use the second echo instead of the first echo from the back of the material to be me...

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