Envent Engineering Ltd. Page 24 Revision 2.4
Standard spare parts for 331S H
2
S analyzers:
1. 331S Customer Binder
• Customer Manual(s)
• Factory Calibration Certificate
• Factory Configuration
• Drawing Package
• Cal Gas Certificate(s)
2. USB flash drive (containing all documentation)
3. 300' H
2
S Sensing Tape. Part No. 330133XS
4. 1 Liter Analyzer Fluid. Part No. 330129
5. Funnel
6. 331S Serial Comm. External Cable (USB to Mini USB). Part No. 600002
7. Humidifier (uninstalled). Part No. 330061 (Part No. 330061D for SDS)
Installation procedure & Start-up
The following steps should be followed for proper installation and start-up of the
analyzer.
1. Unpack the analyzer and check for damages.
2. Ensure the analyzer power supply and range are suitable for the installation
location.
3. Check that the hazardous location rating is suitable for the installation location.
4. Ensure that the selected installation site provides adequate room for maintenance
and repair.
5. Select an installation location close to the sample point.
6. Bolt the analyzer to the wall with the H
2
S sensing tape drive at approximately eye
level.
7. Wire the power, analog outputs and discrete outputs from the analyzer.
8. Tube the Sample inlet, sample sweep, and sample vent lines from the analyzer.
9. Ensure there is enough H
2
S Sensing tape.
10. Install the Humidifier, if applicable. Ensure there is enough 5% acetic acid or
distilled water in the humidifier.
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