Changing DSS70A filter - DM70

DM70 User Guide
Document code
M010091EN
Revision
G
Language
English
Product
DM70
Document type
User guide

The filter should be changed regularly as a part of maintenance. However, the need for changing the filter depends on how dirty the process is. The filter may need to be changed after several hundreds of hours or after years. A dry filter may cause increased response times. A new filter can be ordered from Vaisala (see Spare parts and accessories).

  1. To change the filter, lift the sampling system out of the briefcase. See Figure 1.
  2. Unscrew the nut of sample cell. See Figure 1.
  3. Turn the sampling cell right side up again and undo the nut of the filter cell.
  4. Replace the filter and tighten the nuts. The direction of the arrow on the filter must match the direction of the arrow on DSS70A. See Figure 1.
  5. Put the sampling system back into the briefcase.
    Figure 1. Changing the filter
    1
    Filter direction
    2
    Nuts of the filter