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

NGA 2000 HFID
Instruction Manual
HAS64E-IM-HW
September 2008
4 - 12 Maintenance and Service Emerson Process Management GmbH & Co.OHG
4-6 THERMAL BLOCK
The sample RTD can be replaced with the thermal block
attached to burner and mounted in oven. The cartridge
heater and thermostat are also replaceable with ther-
mal block secured to burner, but must be removed from
the oven.
a. Sample RTD
1. Refer to Figure 4-4A. Remove the four screws
securing the oven cover, remove cover.
2. Disconnect the sample RTD wiring connector, note
location.
3. Refer to Figure 4-9. Remove the two screws se-
curing the sample RTD, pull sample RTD out.
4. Install replacement sample RTD, secure with
screws.
5. Attach sample RTD wiring connector.
6. Re-attach oven cover.
b. Cartridge Heater
1. Remove oven from analyzer module per Section
4-3a.
2. Remove burner / thermal block from oven per
Section 4-3b.
3. Refer to Figure 4-9. Loosen retaining set screw,
pull out cartridge heater.
4. Install replacement cartridge heater, snug down
set screw.
5. Install burner / thermal block into oven.
6. Install oven into analyzer module.
Figure 4-9: Thermal Block- Sample RTD, Cartridge Heater and Thermostat
Sample RTD
657061
Thermostat
659068
Cartridge Heater
659643