Thermo Scientific Sarasota FD900, Руководство пользователя

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Thermo Fisher Scientific User Guide for Sarasota ID900, FD900, & PD900 Gas Density Meters
5-5
Maintenance
Cleaning
4. With the sensor clean and dry, perform a Tair or Tvac check. Referto
Chapter 4 on calibration.
The accuracy required determines whether further cleaning is desirable.
Cleaning using solvents will not remove any fine magnetic particles which
pass through the filters. If magnetic particles are present and causing a
change in Tair or Tvac, remove and clean the spool according to the
following section.
The Spool
Caution
The gas spools are very thin. Exercise extreme caution when
performing any maintenance.
▲
Note
Handling the spool or a change in ambient air temperature will
change the Tair reading.
▲
1. Remove the lock ring with the wrench provided. Where process fluidis
not of a harmful nature, you can remove the spool by inserting your
index finger into the spool. Where this is not the case, handle the spool
by the ends, as shown in Figure 5–1.
Figure 5–1.
Handling the spool safely
2. Clean the spool and body with soft paper and a suitable detergent or
solvent cleaner. Acetone and isopropyl areacceptable.
Caution
Acids must not be used on NiSpan-C spools!
▲
3. If deposit buildup is heavy or if there are magnetic solids stuck tothe
inside of the body near the center, check the filters and increase the
frequency of cleaning.