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TESTING Bluhm & Feuerherdt GmbH
Manufacture and sale of equipment
for the testing of construction material
non-destructive, quick determination of compressive strength
Operating Manual
RA 100 Concrete,
and modulus of elasticity on samples
of cement, mortar and concrete
Model 1.0390
1
Motzener Str. 26b
DE - 12277 Berlin
Tel. +49(0)30/710 96 45-0
Fax +49(0)30/710 96 45-98
www.testing.de
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Table of Contents
Related Manuals for TESTING RA 100 Concrete
Summary of Contents for TESTING RA 100 Concrete
- Page 1 TESTING Bluhm & Feuerherdt GmbH Manufacture and sale of equipment for the testing of construction material Motzener Str. 26b DE - 12277 Berlin Tel. +49(0)30/710 96 45-0 Fax +49(0)30/710 96 45-98 www.testing.de Operating Manual RA 100 Concrete, non-destructive, quick determination of compressive strength...
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Page 2: Table Of Contents
RA 100 Concrete Model 1.0390 Importance of this Operating Manual: We expect and require that the User reads, understands and observes all parts of this Operating Manual. Contents: Page no.: 1. Safety instructions ....................3 2. Scope of delivery ....................4 3. Start-up ........................ -
Page 3: Safety Instructions
RA 100 Concrete Model 1.0390 Safety instructions Application Product for commercial use only! Product exclusively for intended use with building material samples! Safety Do not interfere or modify our products. Never open the device. Otherwise any warranty / conformity expires. -
Page 4: Scope Of Delivery
RA 100 Concrete Model 1.0390 Scope of delivery The scope of delivery of the product RA 100 Concrete includes the following parts: • 1 test stand with integrated USB microphone and 1.8 m USB cable • 1 tablet, 10", 32 GB, Windows 10 •... -
Page 5: Start-Up
Model 1.0390 Start-up For easy and uncomplicated starting the following steps are recommended: 1. Place the RA 100 Concrete test stand firmly on a fat surface 2. Assemble base plate 3. Screw in vibration absorbers 4. Set up the test specimen... - Page 6 RA 100 Concrete Model 1.0390 (Position recommendation marked in red) Recommended sample position of a cube sample 150mm/150mm/150mm Recommended frequency range (cube): 3500 Hz - 9500 Hz Stable sample position for cylinder samples with small diameter and prism samples with...
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Page 7: Software
RA 100 Concrete Model 1.0390 Make sure that USB PnP Sound Device is selected as the default device in the Windows settings for the recording device. AGC" must be deactivated under "Properties - User-defined" and a level of 100 must be set under "Level". - Page 8 RA 100 Concrete Model 1.0390 The fck-cube compressive strength value is used for the target display (first column next to the diagram) for comparison with the measurement. The maximum grain display is not used directly, it indirectly influences an otherwise determined calibration correction factor, which is listed in the last column of the sort list and corrects the determination of compressive strength according to empirical experience.
- Page 9 RA 100 Concrete Model 1.0390 Start measurement When this button is pressed, the microphone goes into standby mode and waits for the pulse that triggers the measurement process Save If this button is pressed, the current measurement is stored in the archive...
- Page 10 RA 100 Concrete Model 1.0390 Resonant Frequency This is the actual and most important measured value. In the set frequency range, the signal frequency response recorded by the microphone is deter- mined in the manner of a digital short-term Fourier transformation and also displayed graphically.
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Page 11: Tab „Archive
RA 100 Concrete Model 1.0390 E-stat DIN EN 12390-13 The static modulus of elasticity is estimated from the dynamic modulus of elasticity according to theoretical models, similar comparison measurements from literature and own measurements. Fc-cyl fc-cube 0,92 fc-cube The result values correspond to a conversion of the measured sound velocity according to empirical values obtained in test series with several hundred cube compressive strength values produced in the ready-mixed concrete product monitoring. -
Page 12: Tab „Settings
RA 100 Concrete Model 1.0390 4.3. Tab „Settings“ The values entered represent the basic software settings. Recording Sampling rate: Sampling rate of the audio recording Recording time: Length of the recording Trigger limit: Level at which the recording is triggered... - Page 13 RA 100 Concrete Model 1.0390 Changes to these settings can strongly influence the quality of the measurement. Please contact us if you have any questions: service@testing.de Audio device Selecting the recording and playback device. (Not necessary from Windows 8.1) View Optionally, the screen can be switched to full screen mode using the >...
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Page 14: Tab "Concrete Types
RA 100 Concrete Model 1.0390 4.4. Tab “Concrete Types” Exemplary excerpt from a stored list of varieties If a variety list of types is stored, additional details can be used for the display and calculation. If you have any questions, please contact us:... -
Page 15: Troubleshooting
RA 100 Concrete Model 1.0390 Troubleshooting Issue: As soon as you click on "Start measurement" - the software immediately jumps to "process". Solution: USB microphone of the test stand not connected. Correct the trigger limit upwards in the "Settings" tab.
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