Table Of Contents - Elcometer Protovale CoverMaster CM52 Operating Instructions Manual

Protovale CM52 Covermaster
1. INTRODUCTION.................................................................................................. 2-5
1.1 In this manual....................................................................................... 2
1.2 The CM52 CoverMaster ....................................................................... 2
1.3 Connecting up...................................................................................... 3
1.4 Recharging batteries ............................................................................ 3
1.5 Safety .................................................................................................. 4
1.6 Connecting headphones....................................................................... 5
1.7 Compatibility with the CM5 ................................................................... 5
2. PRINCIPLE OF OPERATION .............................................................................. 6-7
3. LOCATING REINFORCING BARS ...................................................................... 8-11
3.1 Practice and training............................................................................. 8
3.2 Indications............................................................................................ 8
3.3 Basic search technique ........................................................................ 9
3.4 Welded mesh and joined bars ............................................................ 10
4. MEASURING DEPTH OF COVER ..................................................................... 12-13
4.1 How the CM52 CoverMaster works .................................................... 12
4.2 Basic depth measurement.................................................................. 12
4.3 Irregular bars...................................................................................... 13
4.4 Shallow depths................................................................................... 13
5. ADVANCED TECHNIQUES............................................................................... 14-29
5.1 Search methods for congested situations .......................................... 14
5.2 Locating deep bars............................................................................ 14
5.3 Scanning for under cover .................................................................. 14
5.4 More about transverse bars............................................................... 15
5.5 Depth measurements in congested situations.................................... 16
5.6 Closely-spaced and lapped bars........................................................ 20
5.7 Lapped bars...................................................................................... 20
5.8 Reinforced concrete pipes and pillars ................................................ 21
5.9 Unknown bar sizes (diameter determination) ..................................... 21
5.10 Materials other than reinforcing bars.................................................. 26
5.11 Magnetic aggregates......................................................................... 27
5.12 Midget head ...................................................................................... 28
5.13 Data-logging...................................................................................... 29
5.14 Temperature effects .......................................................................... 29
6. RECALIBRATION ............................................................................................. 30-31
6.1 Quick check ....................................................................................... 30
6.2 Full check........................................................................................... 30
6.3 Intermediate checks ........................................................................... 31
6.4 Traceability to BS1881:204 ................................................................ 31
6.5 Recalibration with Midget Head .......................................................... 31
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