Unpacking and Setting up the System 2–15
6. When using the bypass flow, connect tube #4 from the
Classifier port marked BYPASS FLOW to the DMA port marked
BYPASS FLOW. Leave the EXHAUST FLOW port on the
Classifier open without the cap (#6 in Figure 2-12).
Note: Impactor inlet has to be removed when using the bypass
flow because the pressure drop across the impactor inlet is
too large for the pump with the 10 to 15 L/min bypass
flow.
7. When the bypass flow is not used, remove tube #4 between the
Classifier and the DMA. Add the cap to the BYPASS FLOW port
on the DMA.
Table 2-4
Tubing Connections for Model 3085 Nano DMA in Single Blower Mode
Tube # Length Description Part No.
1 8-in [203-mm] Black, fits
1
⁄4-in [6.35-mm] tubing 3001903
2 7-in [178-mm] Black, fits
3
⁄8-in [9.5-mm] tubing 3001904
3 7-in [178-mm] Black, fits
3
⁄8-in [9.5-mm] tubing 3001904
4 7-in [178-mm] Black, fits
3
⁄8-in [9.5-mm] tubing 3001904
5
3
⁄8 to ¼-in tubing adapter 1035992
6
3
⁄8-in cap fitting 1611270
Figure 2-12
Tubing Configuration for the Model 3085 Nano DMA in Single Blower Mode
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