ii PCM
+
Operation Manual
Table of figures
Figure 2.1: Tx Facia 3
Figure 2.2: Frequency Selector
3
Figure 2.3: Rectier connection to pipeline
5
Figure 2.4: PCM connection to pipeline
5
Figure 2.5: PCM connection using test point
6
Figure 2.6: PCM connection using sacricial
anode for grounding 6
Figure 3.1: Receiver Controls
8
Figure 4.1: Peak mode 12
Figure 4.2: Null mode 1
2
Figure 4.3: Pipeline current ow 1
3
Figure 4.4: Pipeline current ow 1
3
Figure 4.5: Pipeline fault 1
3
Figure 4.6: mA fault graph 1
4
Figure 4.7: dBmA fault graph 1
4
Figure 4.8: mA fault graph 1
4
Figure 4.9: dBmA fault graph 1
5
Figure 4.10: Collected data and interpreted results 1
5
Figure 5.1: Tie line 1 1
6
Figure 5.2: Tie line 2 1
6
Figure 5.3: Loop 1
6
Figure 5.4: Looped system 1 1
6
Figure 5.5: Looped system 2 1
6
Figure 5.6: Distributed system 1
7
Figure 5.7: Interpreting distributed systems 1
7
Figure 5.8: Poor coated steel shield 1
7
Figure 5.9: Perfect coating 1
7
Figure 6.1: Parallel Pipes Example 1 1
8
Figure 6.2: Example 1 interpretation 1
8
Figure 6.3: Parallel Pipes Example 2 1
8
Figure 6.4: Example 2 interpretation 1
9
Figure 6.5: Parallel Pipes Example 3 1
9
Figure 6.6: Example 3 interpretation 1
9
Figure 6.7: Angled Pipes Example 1 1
9
Figure 6.8: Parallel Pipes Example 4 2
0
Figure 6.9: Parallel Pipes Example 5 2
0
Figure 7.1: A-Frame Fault-Finding 2
1
Figure 7.2: A-Frame Fault-Finding 2
2
Figure 7.3: Locating the fault 2
2
Figure 7.4: Taking a reading 2
2
Figure 7.5: Comparing fault severity 2
2
Figure 8.1: Interpreting results 2
4