Impact Products CN652 User Manual

User Guide User Guide Digital Concrete Test Hammer CN652 Impact Test Equipment Ltd www.impact-test.co.uk & www.impact-test.com

Shape of the test specimen: Shape coefficient also applies for: 2nd Line: 200/200/200 Cylinder Ø 200 x 200 mm 3rd Line: 150/150/150 Cylinder Ø 150

Mx: Delete the Lowest and Highest Values Only possible from EPROM version 2.0. The amount ”m” of both the lowest and highest values are deleted. •

5 Measuring Process 5.1 Measuring Procedure Preferably perform measurements at temperatures between 10 °C and 50 °C only. The items in (brackets

• Obvious outliers can only be eliminated directly after the particular test impact with the PRINT/STORE key. End Measurement Series: • After the

5.2.2 Clear Memory Objects cannot be deleted individually. You can only delete the entire memory contents. This action cannot be undone after it h

6 Maintenance and Care 6.1 Cleaning After Use Warning! Never immerse the concrete test hammer in water or clean it under a running tap! Use neith

6.2.2 Display Unit • Check the surface of the outer sheath of the cable and the connector for damage. • Check the life of the batteries. • If a ba

• Pull the hammer mass (14) off the hammer guide bar together with the impact spring (16) and sleeve (17). • Remove the felt ring (18) from the ca

6.4.4 Concrete Test Hammer Model ND/LD Fig. 6.2 Lengthways section through the concrete test hammer Key: 1 Impact plunger 2 Test surface 3 Housi

7 Data 7.1 Form of Delivery Model ND / LD Contents of Package Concrete test hammer Display unit Carrying strap Test hammer cable

Impact Test Equipment Ltd. Building 21 Stevenston Ind. Est. Stevenston Ayrshire KA20 3LR T: 01294 602626 F: 01294 461168 E: sales@impact-test

7.2 Accessories / Spare Parts Designation Article no. Protection sleeve for display unit 330 00 470 Transfer cable 9/9-position 330 00 456

8 Appendix 8.1 Derivation of the PROCEQ Standard Conversion Curves The conversion curves Fig. 8.1 and Fig. 8.2 for the concrete test hammer are b

Standard Conversion Curve for Concrete Test Hammer Model LD has already been corrected in relati acversion rve based on the average e R imits of

The relationship between the rebound value R and the compressive strength of the concrete fck is determined using test specimens of a certain type

8.4 Determining Time Coefficient The age of the concrete and its carbonate penetration depth can significantly increase the measured rebound value

Contents 1 Safety General Information Liability Safety Regulations Standards and Regulations Applied 2 Product Description 3 Startup Conne

1 Safety 1.1 General Information 1.1.1 Basic Information The concrete test hammer is designed according to state-of-the-art technology and the rec

1.3.3 Safety Icons The following icons are used in conjunction with all important safety notes in these operating instructions. Danger! This note

The DIGI-SCHMIDT 2000 concrete test hammer comprises the actual concrete test hammer and the display unit. Both components belong together and ar

3 Startup 3.1 Connecting the Components • Connect the Test hammer cable to the concrete test hammer and to the display unit at input B. • Connect

4 Settings The display unit has a menu with user navigation. Please follow the instructions in the respective display fields. • Press the MENU key

4.4.2 Select Curve The compressive strength of the concrete fck can be calculated from the rebound value R by means of conversion curves. There ar