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August 2014 - Maintenance Recommendations for TEOM 1405
Sandra Nason
Technical Support Specialist
Environmental and Process Monitoring
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Question
Answer
Yes, there are other items to do each time the TEOM filter is changed. You would want to clean the PM-10 inlet and clean the virtual impactor or VSCC. We recommend changing out the TEOM filter every 30 days, or as needed for your specific facility.
You can follow this guide for maintenance recommendations on the Thermo Scientific™ TEOM 1405 Ambient Particulate Monitor and the TEOM 1405-D Dichotomous Ambient Particulate Monitor.
| Frequency | Part number | |
|---|---|---|
| Replace TEOM filter | Replace the PM-Coarse and PM-2.5 TEOM filters when the filter loading percentage (displayed in the main screen) nears 100% or every 30 days. | 57-007225-0200 |
| Clean PM-10 inlet | Clean the sample inlet that is mounted on the tripod each time that you replace a TEOM filter (every 30 days). | |
| Clean virtual impactor or VSCC | Clean the virtual impactor every time you replace the TEOM filters (every 30 days). | |
| Clean air inlet system | Clean the air inlet system inside the mass transducer once a year, or as necessary | |
| Rebuild or replace vacuum pump | Rebuild or replace the sample pump once every 18 months, or as necessary. The pump rebuild kit contain instructions for rebuilding the pump. | Varies, download Tech Bulletin from The Online Library |
| Replace the in-line filters | Replace the PM-2.5 and PM-Coarse flow in-line filters and the bypass in-line filter every 6 months, or as necessary. | Small Filter element: 32-010745 Large filter element: 32-010755 |
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