FC 1K-BT-BA-e-2020
Sauter GmbH
Ziegelei 1
D-72336 Balingen
e-mail: info@kern-sohn.com
Phone : +49- [0]7433- 9933-0
Fax: +49- [0]7433-9933-149
Internet: www.sauter.eu
Manual Concrete tester
SAUTER Concrete tester
Version 1.0
07/2020
GB
PROFESSIONAL MEASURING
2 FC 1K-BT-BA-e-2020
GB
SAUTER Concrete tester
V. 1.0 04/2020
Manual Concrete tester
Congratulations on the purchase of a digital concrete measuring device with internal
measuring cell from SAUTER. We hope you will enjoy your quality measuring device
with a wide range of functions. Please do not hesitate to contact us if you have any
questions, requests or suggestions.
Table of contents:
1 Introduction .................................................................................................... 4
2 Scope of delivery ........................................................................................... 4
3 The Shotcrete Tester ...................................................................................... 5
4
Using
the Tester ............................................................................................. 5
4.1 EN ISO 14488-2 ......................................................................................................................... 5
4.2 Principle Method A ................................................................................................................... 5
4.3
Test
protocol
form ..................................................................................................................... 5
4.4 Test specimen ........................................................................................................................... 6
4.5 Conversion curves ................................................................................................................... 6
5 Test Procedure ............................................................................................... 6
5.1 Prepare the tester ..................................................................................................................... 7
5.2 Test the concrete at ten sample locations ............................................................................. 7
6 Expression of Results ................................................................................... 7
6.1 Calculation of compressive strength ..................................................................................... 7
7 Technical data ................................................................................................ 8
7.1 Technical data FC with internal loadcell 1kN ........................................................................ 8
8 Display indication .......................................................................................... 9
9 Control buttons ............................................................................................ 10
10 Menu items ................................................................................................... 11
10.1 Language ................................................................................................................................. 11
10.2 Display modes ........................................................................................................................ 11
10.3 Storing measured values ....................................................................................................... 11
10.4 Delete all records .................................................................................................................... 11
10.5 Browse Menu .......................................................................................................................... 12
10.6 Print.......................................................................................................................................... 13
10.7 System settings ...................................................................................................................... 13
10.8 USB/Loading ........................................................................................................................... 14
10.9 Multifunctional port ................................................................................................................ 14
11 Warnings ...................................................................................................... 15
12 Adjustment FC ............................................................................................. 18
FC 1K-BT-BA-e-2020 3
13 Technical drawings ...................................................................................... 19
14 Appendix 1 ................................................................................................... 34
14.1 Test protocol ........................................................................................................................... 34
14.2 Diagram sheet ......................................................................................................................... 34
4 FC 1K-BT-BA-e-2020
1 Introduction
Please read these operating instructions carefully before commissioning, even if you
already have experience with SAUTER measuring instruments.
After receipt of the concrete tester, it should be checked in advance that no transport
damage has occurred, that the outer packaging, the plastic housing, other parts or
even the gauge itself have not been damaged. If any damage is evident, please
notify SAUTER GmbH immediately.
The FC can measure tensile and compressive forces very accurately and it is easy to
operate. In this special version it is suitable to measure the resistance of young
sprayed concrete. It can be held in the hand for measurements. It is although suitable
to cover the procedure according to the EN ISO 14488-2 (Method A) for subsequent
calculation of the compressive strength of concrete.
SAUTER offers optional software and accessories to make the measuring instrument
more versatile in use. Please ask SAUTER or the SAUTER supplier or visit our
website www.sauter.eu.
2 Scope of delivery
SAUTER FC, incl. internal battery
Transport case
Battery charger
15 Steel needles, 3mm with a taper angle of 60°
Needle holder
Needle holder adapter
Knurled nut
T-shaped measuring instrument holder
User Manual German and English
FC 1K-BT-BA-e-2020 5
3 The Shotcrete Tester
SAUTER shotcrete tester supports you to measure accurate readings of the forces
required to penetrate sprayed or poured concrete during the initial strength
development stage of curing. With the force readings you are able to convert the force
values to a compressive strength value. The best use on-site to measure and testing
shotcrete according to BS EN ISO 14488 (Method A).
4
Using
the Tester
4.1 EN ISO 14488-2
This part specifies two methods from which an estimate of the in situ compressive
strength of young hardened sprayed concrete can be made. The strength development
of young sprayed concrete is assessed in the ranges of 0,2 MPa to 1,2 MPa and 3
MPa to 16 MPa respectively with Method A and Method B. The SAUTER Shotcrete
Tester gives you the possibility to test the force values and convert them according to
the EN ISO 14488-2 and gives you an overview of your sprayed concrete quality.
4.2 Principle Method A
This method is used to measure the force required to push a needle of specified
dimensions to penetrate into the sprayed concrete to a depth of 15 mm +/- 2 mm. A
penetrometer indicates the resisting force, through compression of a calibrated spring
from which an estimated compressive strength can be derived from a conversion
curve, to be provided by the producer of the test equipment The tester indicates the
resisting force, from which an estimated compressive strength can be derived by
means of the appropriate example conversion curve, included with the product and
shown in Appendix A.
4.3
Test
protocol
form
The resulting strength calculation from the test data requires the measurement of
compressive force at multiple sample points. A test protocol form (see Appendix 2
Example) is needed to record these data;
Project – construction site address
Date
Test equip Serial No.
Time
Place – of the measuring points
Measurement values
6 FC 1K-BT-BA-e-2020
4.4 Test specimen
No special test specimen is required. The testing procedure can be used for
measurements at any location without advance preparation. A sprayed concrete layer
of no less than 100 mm thickness is required for testing.
4.5 Conversion curves
Appendix A of this user guide contains a graph of conversion curves to enable the
calculation of the equivalent compressive strength (MPa) of the concrete from a tester
force reading (N).
This graph is derived from the example calibration curves provided in EN 14488-2
Annex A (informative) of the test standard.
Two linear curves and their associated formulae are reproduced for two typical
aggregate mixes of <8 mm and <=16 mm respectively. The compressive strength value
on the y-axis may be derived from a resistance force reading on the x-axis either by
direct extraction from the curve, or calculation via the appropriate formula, as indicated.
These curves are provided as reference examples based on data published in the
standard, however the individual concrete rnix will affect the accuracy of the
approximation. The user is at liberty to irnplement their own correlation function if this
would be more appropriate.
5 Test Procedure
Record time and place of completion of spraying and start of testing.
Ensure the force indicator is set to zero.
Apply the device perpendicularly to the surface of the sprayed concrete layer
and steadily push in the needle to a depth of 15 mm in a single continuous
movement. If this is prevented, for instance because of a large aggregate
particle or reinforcement, then discontinue the test and repeat in an adjacent
location.
Choose the aggregate size 8 or 16 mm.
Read the resistance force from the scale, record the value on the protocol form
and return indicator to original position.
Clean the needle if necessary.
Repeat the test ten times as quickly as possible (and within 1 min for strengths
below 0,5 MPa) in an area representative of the sprayed region.
Record the time at which the testing is finished (on protocol form).
FC 1K-BT-BA-e-2020 7
5.1 Prepare the tester
Check the fit of the measuring tip
If it is worn out, please replace it
Switch on the FC.
Go to Menu choose Measurment an change Unit to “N” if it’s not already there.
Go to Test Menu and switch to Peak.
Go Back to Measurement screen
Perform your measurement.
5.2 Test the concrete at ten sample locations
Prepare the sample data row
To calculate the single representative value for the compressive strength of the
shotcrete at each test instance, 10 individual samples are taken with the tester.
The data are entered into a row on the test protocol form against the timestamp, for
example at 5, 20, 40, 60,120 minutes.
6 Expression of Results
6.1 Calculation of compressive strength
If you use the Excel file (www.kern-sohn.com), it will be calculate the values by itself
and mark the points in the diagram sheet. So you will get a proper clean protocol of
documentation of the quality of your sprayed concrete.
8 FC 1K-BT-BA-e-2020
7 Technical data
7.1 Technical data FC with internal loadcell 1kN
Measuring
device
FC 1K
Capacity
1000N
Measurement
uncertainty
±0.3% of Max (measuring range)
Relative air
humidity
15% to 80% Humidity
Weight
(without
accessories)
Approx. 500g
Dimensions
Display unit
(LxWxH)
140x71x36mm
Thread
M6
FC 1K-BT-BA-e-2020 9
8 Display indication
Position
Description
1
Measuring mode: Track mode; Peak mode; Preset mode
2
Battery symbol: shows the current charge status; flashes when the
battery needs to be recharged
3
Default value status:
: the value is between the lower and upper limit and is OK
: the value is between the lower limit value and the value of 75% of
the lower limit value, i.e. the value falls below the lower limit value
: the value exceeds the upper limit value
4
Measuring units: the selected unit is displayed (N, kgf, ozf or lbf optional)
5
System Clock
6
Data transmission symbol
7
Data memory icon
8
Analogue load bar display
9
Current measured value
10
Direction of force (tension ( ) Pressure ( )
10 FC 1K-BT-BA-e-2020
9 Control buttons
SAVE/ESC:
Saving the measured value
By pressing the SAVE/ESC button in the menu, you can return to the previous
page
ZERO (zeroing):
Zeroing the display
Arrow 'up' in the menu
ENTER:
Opening the menu
Confirm the selection in the menu
Mode (mode change):
Selecting the measuring mode
Arrow key 'down' in the menu
ON / OFF:
On / Off button (press button for approx. 1 s)
FC 1K-BT-BA-e-2020 11
10 Menu items
10.1 Language
The display of the force gauge has several menu language versions. Select the desired
language setting.
10.2 Display modes
The force gauge has two display modes: force transducer oriented display and reverse
display. Select the desired display mode as required.
10.3 Storing measured values
The force gauge is equipped with the function for storing measured values. The stored
data can be searched or printed out.
During the measurement, press the key to save the respective value. The display
will show the data storage symbol ( ).
The stored data is displayed. In Track mode and Preset mode, the current force value
is measured, and in Peak mode, the maximum value.
10.4 Delete all records
To empty the memory, all data can be deleted at once. The display then shows a dialog
box with a corresponding security prompt.
Individual data can be deleted from the 'Browse' menu.
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