Endress+Hauser SS1000, Hardware Installation And Maintenance Manual

Page: 87 / 121

Maintenance and Troubleshooting
Hardware Installation and Maintenance Manual B
–
3
Relief Valve Setting
The relief valve is pre-set at the factory at 50 PSIG and should not require
adjustment. Refer to the system drawings in Appendix A.
Cleaning the Sampling Lines
Use the following procedure to clean the sampling lines if contamination is
suspected.
To keep the sampling lines clean
1. Make sure that a membrane separator filter (included with most
systems) is installed ahead of the analyzer and operating normally.
Replace the membrane if necessary. If liquid enters the cell and
accumulates on the internal optics, a Laser Power Low Alrm fault
will result.
2. If mirror contamination is suspected, see “Cleaning the Mirrors”
on page B-3.
3. Turn off the sample valve at the tap in accordance with site lock-out,
tag-out rules.
4. Disconnect the gas sampling line from the supply port of the
analyzer.
5. Wash the sampling line with isopropyl alcohol or acetone and blow
dry with mild pressure from a dry air or nitrogen source.
6. Once the sampling line is completely free of solvent, reconnect the
gas sampling line to the supply port of the analyzer.
7. Check all connections for gas leaks. SpectraSensors recommends
using a liquid leak detector.
Cleaning the Mirrors
If contamination makes its way into the cell and accumulates on the internal
optics, a Laser Power Low Alrm fault will result. If mirror contamination is
suspected, please consult with Service before attempting to clean the mirrors.
Refer to “Service Contact” on page B-31. If advised to do so, clean the
mirrors use the following procedures.
Improper adjustment in the field could prevent the proper
operation of the relief valve and/or sample conditioning system.
Contact Service for questions or issues, refer to “Service
Contact” on page B-31.