Teledyne T360 Manual do Utilizador Página 245

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Teledyne API Model T360/T360M Operation Manual Troubleshooting and Service
243
8.3.4. Inability to Zero – Touchscreen ZERO Button Not Visible
1. Confirm that there is a good source of zero air. Dilute a tank of span gas
with the same amount of zero air from two different sources. If the CO
2
Concentration of the two measurements is different, there is a problem with
one of the sources of zero air.
2. Check for leaks in the pneumatic systems as described in Section 6.3.3.
3. If the analyze
r has had zero/span valve options, the CO
2
scrubber may need
maintenance.
4. Check to make sure that there is no ambient air leaking into zero air line.
07272B DCN6552
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