Table of Contents
Advertisement
Quick Links
Instruction Manual
Model 4415
3D Mechanical Crackmeter
No part of this instruction manual may be reproduced, by any means, without the written consent of Geokon
®
.
The information contained herein is believed to be accurate and reliable. However, Geokon
®
assumes no responsibility for
errors, omissions or misinterpretation. The information herein is subject to change without notification.
Copyright © 2015-2019 by Geokon
®
(Doc Rev C, 8/8/19)
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for Geokon 4415
Summary of Contents for Geokon 4415
- Page 1 Instruction Manual Model 4415 3D Mechanical Crackmeter No part of this instruction manual may be reproduced, by any means, without the written consent of Geokon ® The information contained herein is believed to be accurate and reliable. However, Geokon ®...
- Page 3 Geokon or any breach of any warranty by Geokon shall not exceed the purchase price paid by the purchaser to Geokon for the unit or units, or equipment directly affected by such breach. Under no circumstances will Geokon reimburse the claimant for loss incurred in removing and/or reinstalling equipment.
-
Page 4: Table Of Contents
APPENDIX A. SPECIFICATIONS .......................... 6 FIGURES 1 - 4415-5 C ................2 IGURE RACKMETER WITH PACER LOCK NSTALLED 2 - R 4415-1 & 4415-3 ................. 4 IGURE EADING OCATIONS FOR ODELS 3 - R 4415-5 ....................4 IGURE EADING OCATIONS FOR... -
Page 5: Introduction
1. INTRODUCTION The Geokon Model 4415 3D Mechanical Crackmeters is designed to measure movement across joints such as the construction joints in buildings, bridges, pipelines, dams, etc.; tension cracks in soils and joints in rock and concrete. The crackmeter comprises a horizontal square bar that is anchored on one side of the crack and a three-sided box, in which the end of the square bar nests, anchored on the other side of the crack. -
Page 6: Installation Instructions
2.1.1 Assembling the Spacer Block into the Crackmeter NOTE: This section is required for 50 mm range crackmeters only (model 4415-5). For the 12.5 mm and 25 mm range crackmeters (models 4415-1 & 4415-3) the spacer block is installed at the factory. -
Page 7: Mounting The Crackmeter
2.1.2 Mounting the Crackmeter 1) Position the crackmeter so that it spans across the crack, using the rebar lengths mark the position of holes that need to be drilled. 2) Drill two, 5/8 inch to 3/4 inch boreholes, to the depth necessary to leave the crack meter at the desire height above the surface. -
Page 8: Taking Readings
The Y-axis monitors any movement perpendicular to the break. The Z-axis measures vertical movement along the crack. Figure 2 - Reading Locations for Models 4415-1 & 4415-3 Figure 3 - Reading Locations for Model 4415-5 3.3.1 Taking Readings with a Dial Indicator... -
Page 9: Taking Readings With A Depth Micrometer
3) Take the X and Y axes readings through the two holes in the three-sided box in a similar manner as for the Z-axis and record the results. (NOTE: For the 50 mm range crackmeter, model 4415-5, all three of the measurements are taken from the square bar to the three-sided cube as shown in Figure 3.) 4) The ambient temperature should be recorded each time readings are taken. -
Page 10: Appendix A. Specifications
APPENDIX A. SPECIFICATIONS CRACKMETER 4415-1: 0-12.5 mm Mechanical Range 4415-3: 0-25 mm in each X,Y,Z axis 4415-5: 0-50 mm Material Stainless steel Anchor Dimensions (Dia. × Length) 12 mm × 150 mm Anchors #4 rebar TYPICAL DEPTH MICROMETER / DIAL GAUGE...
Need help?
Do you have a question about the 4415 and is the answer not in the manual?
Questions and answers