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Bedienungsanleitung

Operating Instructions

Mode d’emploi

Betonprüfhammer

DIGI-SCHMIDT 2000

Concrete Test Hammer

Modell ND/LD

Scléromètre à béton

Bedienungsanleitung DIGI-SCHMIDT 2000.qxd 12.12.2002 16:23 Seite 2

Содержание DIGI-SCHMIDT 2000 LD

Страница 1: ...nungsanleitung Operating Instructions Mode d emploi Betonpr fhammer DIGI SCHMIDT 2000 Concrete Test Hammer Modell ND LD Scl rom tre b ton Bedienungsanleitung DIGI SCHMIDT 2000 qxd 12 12 2002 16 23 Sei...

Страница 2: ...tions 7 Display Range 9 Limit Values 9 Language 9 Date Time 9 Data Output 9 5 Measuring Process 10 Measuring Procedure 10 Data Output 11 6 Maintenance and Care 13 Cleaning After Use 13 Performance Che...

Страница 3: ...are due to one or more of the follo wing causes Failure to use the concrete test hammer in accordance with its designated use Incorrect performance check operation and mainte nance of the concrete te...

Страница 4: ...rules of behavior are disregarded Warning This note warns you about the risk of material damage financial loss and legal penalties e g loss of warranty rights liability cases etc This denotes importan...

Страница 5: ...strength of the concrete fck There is a specific relationship between the rebound value R and the hardness and strength of the concrete The following factors must be taken into account when ascertaini...

Страница 6: ...Test o k Remaining battery life Then the measuring display of the previously measured object appears see Fig 3 1 but without values If no display appears replace the batteries Fig 3 1 Measuring displ...

Страница 7: ...is calculated from the number of test impacts n entered or after a measurement series has been completed by pressing the END key Where possible enter at least n 10 or n 12 see under Mx example on page...

Страница 8: ...of the PROCEQ Standard curves refer to Derivation of the PROCEQ Standard Conversion Curves page 19 Select conversion curve A in line no 7 for concrete with an age of 7 days fck7 or the conversion cur...

Страница 9: ...reduction factor is set automatically 4 5 3 Eliminate Outliers The following 4 functions can be selected 0 M1 M3 and Mx Using function 0 individual values can be deleted manually Using the functions M...

Страница 10: ...s on the display serve to aid fast recogni tion of deviations from the measured values The range within which the rebound values R are to lie can be selected see Fig 3 1 Measuring display page 5 The s...

Страница 11: ...cular to the test sur face before you trigger the impact Each test surface should be tested with at least 10 impacts The individual impact points must be spaced at least 20 mm apart Fig 5 3 Performing...

Страница 12: ...t a hard surface at moderate speed When the impact is triggered press push button 6 Impact plunger 1 is locked in a retrac ted position and the impact spring is under no load Fig 5 4 Locking the impac...

Страница 13: ...smission use the printer cable Art No 330 00 460 Printing can be performed on all commercially available printers with a serial port The following printing options are available Printer is connected t...

Страница 14: ...e Check 6 2 1 Concrete Test Hammer If possible carry out the performance check every time before you use the device however at least every 1000 impacts or 3 months Fig 6 1 Performance check of the con...

Страница 15: ...gth ways section through the concrete test hammer page 16 6 4 1 Stripping Down Warning Never strip down adjust or clean the slider and guide rod 4 see Fig 6 2 page 16 otherwise the slider friction may...

Страница 16: ...all amount of grease to the screw head of the screw 20 Slide the hammer guide bar 7 through the hammer mass 14 Insert the retaining spring 15 into the hole in the impact plunger 1 Slide the hammer gui...

Страница 17: ...ssion spring 13 Pawl 14 Hammer mass 14 1 model ND 14 2 model LD 15 Retaining spring 16 Impact spring 17 Guide sleeve 18 Felt washer 19 Resistance element with input socket 20 Trip screw 21 Locknut 22...

Страница 18: ...Concrete test hammer z z Display unit z z Carrying strap z z Test hammer cable z z Transfer cable z z Grindstone z z Protection sleeve for z z display unit Operating instructions z z Calibration cert...

Страница 19: ...ay Unit Measuring range from 10 to 70 N mm2 compressive strength of the concrete Non volatile memory for max 500 measurement series of 10 measurements each Graphics LC display 128 x 128 pixels Interfa...

Страница 20: ...e from concrete consisting of good quality fine gravel maximum particle size 32 mm and Portland cement Empirical values The conversion curve is practically independent of the Cement content of the con...

Страница 21: ...tone e g pumice brick rubble gneiss result in a strength value lower than shown on the conversion curve Gravel with a preponderance of smooth polished surfa ces and spherical shape results in values f...

Страница 22: ...pair of values Rm fckm applies to a certain range of the measured rebound value R It is necessary to test samples of differing qualities and or ages in order to prepare a new conversion curve for the...