Preface - GE Hydran 201 i Instruction Manual

This manual is a complete reference for the Hydran 201i System, which is a unique,
continuous, on-line monitor of combustible gases in dielectric oils.
The information in this manual may be used by:
• Purchaser or specifier
• Installation planner
• Operator
• Commissioning manager
• Person responsible for collecting the readings
• Maintenance technician
• Troubleshooting technician
All procedures in this manual must be strictly adhered to. Any
WARNING
CAUTION
deviation from these could cause irreversible damages to the
transformer being monitored and/or the Hydran 201i System, and
could lead to property damage, personal injury and/or death. Instal-
lation and maintenance of the Hydran 201i System must be carried
out by qualified personnel only.
This manual is not a tutorial on combustible gases in dielectric oil. It is assumed that the
reader is already familiar with these subjects.
This manual applies to the Hydran 201i System and to the Hydran 201R Model i. In this
manual, the designation "Hydran 201i System" also applies to the Hydran 201R Model i
and to any other combination of Hydran 201i components. The components of the
Hydran 201i System are described in Section 1.2 on page 1-2.
To help the reader, a Table of Contents, a List of Figures and a List of Tables are present at
the beginning of the manual, along with a Glossary in Appendix I at the end of the manual.
This Hydran 201i System Instruction Manual is included in PDF format in the folder
English/Manuals of the Hydran 201i System installation CD, along with the Hydran 201i
System Installation Guide and the Hydran Host Software Manual. A hard copy of all those
manuals can be purchased from General Electric Canada.
Part 17997

PREFACE

Rev. 6, March 2011
Hydran 201i System
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