Instruction manual
Table Of Contents
- INSTRUCTION MANUAL HFID
- ESSENTIAL INSTRUCTIONS
- TABLE OF CONTENTS
- PREFACE
- DEFINITIONS
- SAFETY INSTRUCTIONS WIRING AND INSTALLATION OF THIS APPARATUS
- OPERATING AND MAINTAINING THIS APPARATUS
- GENERAL SAFETY NOTICE / RESIDUAL RISK
- AUTHORIZED PERSONNEL
- GASES AND GAS CONDITIONING (SAMPLE HANDLING)
- POWER SUPPLY
- ELECTROSTATIC DISCHARGE
- GENERAL PRECAUTIONS FOR HANDLING AND STORINGHIGH PRESSURE GAS CYLINDERS
- DOCUMENTATION
- COMPLIANCES
- GLOSSARY OF TERMS
- ANALYZER SYSTEM ARCHITECTURE
- SECTION 1: DESCRIPTION AND SPECIFICATIONS
- SECTION 2: INSTALLATION
- SECTION 3: OPERATION
- SECTION 4: MAINTENANCE AND SERVICE
- SECTION 5: TROUBLESHOOTING
- SECTION 6: REPLACEMENT PARTS
- RETURN OF MATERIAL
- LIST OF FIGURES AND TABLES
- SUPPLEMENT
Instruction Manual
HAS64E-IM-HW
September 2008
NGA 2000 HFID
4 - 15Maintenance and ServiceEmerson Process Management GmbH & Co.OHG
a. Printed Circuit Boards
When replacing a circuit board, the following procedure
is recommended:
Per Section 4-7, remove securing hardware from elec-
tronics assembly and lay on bench.
Remove securing hardware from printed circuit board
to be replaced, do not disconnect cable(s).
Figure 4-12: Electronics Assembly - Exploded View
One at a time, remove the wiring connectors and attach
to replacement board.
Mount replacement board to electronics assembly.
Preamp Assembly
656945
Case Pressure Purge Switch
903690
Computer Analysis Board
658350
Sensor Board
657060
Case Temperature Sensor
656026
Safety Board
43500271
Power Supply Board
655764