Envent Engineering Ltd. Page 33 Revision 2.4
• Remove all sample conditioning system components and soak in cleaning
solution
• Ensure valves are fully open when cleaning
• Flush sample components with fresh water
• Rinse with isopropyl alcohol
• Blow dry with clean compressed air or fuel gas
• If the clear Vinyl tubing appears discolored, replace the tubing.
• Nafion tubing on humidifier should be replaced if it appears contaminated
Disassembly of the pressure regulator and solenoids in the field is not advised.
Consult the factory if the regulator or solenoid appears contaminated.
4. Re-assemble Stainless Steel Tubing to analyzer according to analyzer drawing,
refer to pictures taken before disassembling or refer to drawing package.
5. Once sample conditioning system has been re-assembled, apply calibration gas to
the analyzer. Refer to "H
2
S Gas Calibration" on page 28.
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