Form 37711 Rev 1809
Page 14 of 14
Note:
Increases in back pressure during sampling due to buildup of sample on the filter can decrease battery life.
Mixed Cellulose Ester (MCE) filter, 0.8-µm pore size
Flow Rate (L/min)
Filter Diameter
37 mm
25 mm
2
37
33
2.5
34
26
3
31
21
3.5
29
18
4
25
15
4.5
20
14
Polyvinyl Chloride (PVC) filter, 5.0-µm pore size
Flow Rate (L/min)
Filter Diameter
37 mm
25 mm
2
47
41
2.5
38
33
3
35
30
3.5
26
27
4
22
25
4.5
21
23
Table 1. Pump Run Time in Hours with NiMH Battery
Appendix (Cont)
Typical Run Times
Table 1 contains the typical run times achieved when using a fully charged nickel-metal hydride (NiMH) battery pack. Data is sorted
by type of sample media. All run times are listed in hours. Results obtained using a new pump and new fully charged battery. Pump
performance may vary.
