Envent 331S - Page 4

Receiving the Analyzer .......................................................................................................................................................... 22
• Unpacking the Analyzer ...................................................................................................................................... 23
• Standard spare parts for 330S H
2
S analyzers: ..................................................................................................... 23
• Standard spare parts for 331S H
2
S analyzers: ..................................................................................................... 24
Installation procedure & Start-up ......................................................................................................................................... 24
OPERATION & CONFIGURATION ........................................................................................................................................ 26
Analyzer Display Interface ..................................................................................................................................................... 26
CALIBRATION PROCEDURES ............................................................................................................................................... 28
H
2
S Gas Calibration ................................................................................................................................................................ 28
Re-zero Sensor Procedure ..................................................................................................................................................... 29
MAINTENANCE .................................................................................................................................................................. 31
H
2
S Sensing Tape Change Procedure ..................................................................................................................................... 31
Sample Conditioning System Cleaning Procedure ................................................................................................................ 32
• Material List ........................................................................................................................................................ 32
• Procedure ........................................................................................................................................................... 32
TROUBLESHOOTING .......................................................................................................................................................... 34
APPENDICES ...................................................................................................................................................................... 44
Recommended Spare Parts List ............................................................................................................................................. 44
Chico A Sealing Compound: For sealing fittings in Hazardous Locations .............................................................................. 45
Safety Data Sheet for H
2
S Sensing Tape ................................................................................................................................ 46
Risk Assessment - Safety Information ................................................................................................................................... 51