GE Hydran 201 i Instruction Manual page 20

Instruction Manual
12.5.4 An Alarm Relay Does Not Reset, Even If the Alarm Condition Has
Disappeared . . . . . . . . . . . . . . . . . . . . . . . 12-17
12.5.5 Irregular Gas Readings . . . . . . . . . . . . . . . . . . . 12-18
12.5.6 Inaccurate Gas Readings . . . . . . . . . . . . . . . . . . 12-18
12.5.7 Gas Level Reading Is Abnormally High . . . . . . . . . . . . 12-19
12.5.8 Gas Level Reading Is Slowly Decreasing Toward Zero . . . . . . 12-19
Chapter 13
Maintenance
13.1 Historic Data Verification . . . . . . . . . . . . . . . . . . . . .
13.2 Dissolved Gas Analysis (DGA) . . . . . . . . . . . . . . . . . . .
13.3 Hydran 201Ti Verification. . . . . . . . . . . . . . . . . . . . .
13.4 Hydran 201Ci Controller Verification . . . . . . . . . . . . . . . .
13.5 Fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix A
Technical Specifications for the Hydran 201i System
A.1 Hydran 201Ti Intelligent Transmitter . . . . . . . . . . . . . . . . . A-1
A.2 Hydran 201Ci-C Communications Controller . . . . . . . . . . . . . . A-4
A.3 Hydran 201Ci-1 One-Channel Controller . . . . . . . . . . . . . . . . A-6
Appendix B
Mechanical Drawings
B.1 Hydran 201Ti Intelligent Transmitter . . . . . . . . . . . . . . . . . B-1
B.2 Hydran 201Ci-C Communications Controller . . . . . . . . . . . . . . B-5
B.3 Hydran 201Ci-1 One-Channel Controller . . . . . . . . . . . . . . . . B-6
Appendix C
Functional Block Diagrams
C.1 Hydran 201Ti Intelligent Transmitter . . . . . . . . . . . . . . . . . C-1
C.2 Hydran 201Ci-C Communications Controller . . . . . . . . . . . . . . C-2
C.3 Hydran 201Ci-1 One-Channel Controller . . . . . . . . . . . . . . . . C-3
Appendix D
Terminal Blocks and Connectors
D.1 Hydran 201Ti Intelligent Transmitter . . . . . . . . . . . . . . . . . D-1
D.2 Hydran 201Ci-C Communications Controller . . . . . . . . . . . . . . D-5
D.3 Hydran 201Ci-1 One-Channel Controller . . . . . . . . . . . . . . . . D-8
xx Rev. 6, March 2011
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Part 17997