08354B DCN7877
Teledyne API T640 PM Mass Monitor
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16. Carefully re-assemble the top and base of the sampling inlet, but do not
overtighten.
17. Reconnect the PM
10
inlet to the sample line.
18. Power up the internal pump from the Setup>Vars>Pump Control menu.
19. Power up the bypass flow pump by plugging it back in
CHANGING THE DISPOSABLE FILTER UNIT (DFU)
1. Power off the pump from the Setup>Vars>Pump Control menu.
2. Pull open the instrument’s front panel, using the front panel finger grips.
Figure 5-3. Opening the Front Panel
3. Noting its orientation, remove the old DFU by detaching from the pneumatic
quick-connect fittings, and replace with a new DFU matching the orientation.
Figure 5-4. Internal DFU