SKC 210-2000 AirChek 2000 - Manual (Page 7)

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Table 1. AirChek 2000 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.
Note
Mixed Cellulose (MCE) fi lter, 0.8-μm pore size
Flow Rate (L/min)
Filter Diameter
37 mm 25 mm
2.0 24.2 15.2
2.5 20.4 12.4
3.0 17.7 **
Polyvinyl Chloride (PVC) fi lter, 5.0-μm pore size
Flow Rate (L/min)
Filter Diameter
37 mm 25 mm
2.0 28.2 21.8
2.5 27.0 22.0
3.0 22.6 18.2
** 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.
Table 2. AirChek 2000 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.
Note
Mixed Cellulose (MCE) fi lter, 0.8-μm pore size
Flow Rate (L/min)
Filter Diameter
37 mm 25 mm
2.0 37 32
2.5 33 26
3.0 30 21
Polyvinyl Chloride (PVC) fi lter, 5.0-μm pore size
Flow Rate (L/min)
Filter Diameter
37 mm 25 mm
2.0 44 40
2.5 36 34
3.0 31 27
Increases in back pressure during sampling due to buildup of
sample on the fi lter can decrease batt ery life.