SKC 224-44XR Universal Pump User Manual
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Table 1. Pump Run Time in Hours with NiCad Battery
Following are typical run times achieved when using a fully charged nickel-
cadmium (NiCad) 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.
** Filter back pressure exceeded pump capability during testing.
Increases in back pressure during sampling due to buildup of sample on
the fi lter can decrease batt ery life.
Mixed Cellulose (MCE) fi lter, 0.8-μm pore size
Flow Rate (L/min)
Filter Diameter
37 mm
25 mm
2.0
24.1
16.3
2.5
21.4
14.5
3.0
19.1
11.0
3.5
17.8
10.7
4.0
15.4
**
4.5
14.6
**
Polyvinyl Chloride (PVC) fi lter, 5.0-μm pore size
Flow Rate (L/min)
Filter Diameter
37 mm
25 mm
2.0
31.6
21.7
2.5
27.7
24.0
3.0
27.0
18.6
3.5
22.8
16.4
4.0
19.4
16.2
4.5
19.0
14.6
Note:
Table 2. Pump Run Time in Hours with NiMH Battery
Following are 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.
Increases in back pressure during sampling due to buildup of sample on
the fi lter can decrease batt ery life.
Mixed Cellulose (MCE) fi lter, 0.8-μm pore size
Flow Rate (L/min)
Filter Diameter
37 mm
25 mm
2.0
37
33
2.5
34
26
3.0
31
21
3.5
29
18
4.0
25
15
4.5
20
14
Polyvinyl Chloride (PVC) fi lter, 5.0-μm pore size
Flow Rate (L/min)
Filter Diameter
37 mm
25 mm
2.0
47
41
2.5
38
33
3.0
35
30
3.5
26
27
4.0
22
25
4.5
21
23
Note: