SKC 224-52 AirChek 52 - Manual (Page 4)

2
Performance Profi le
Flow Range: 1000 to 3000 ml/min
(5 to 500 ml/min requires low fl ow accessories, see page 20.)
Flow Control:
Holds constant fl ow to ± 5% of set-point after calibration
Compensation Range: 1000 ml/min up to 25 ins water back pressure
2000 ml/min up to 25 ins water back pressure
2500 ml/min up to 20 ins water back pressure
3000 ml/min up to 15 ins water back pressure
Run Time: NiCad Battery: 8 hrs minimum at above compensation ranges;
dependent on media used. See Table 1 on page 4.
NiMH Battery: 12 hrs minimum at 2000 ml/min and up to
25 inches water back pressure; dependent on media used.
See Table 2 on page 4.
Battery Eliminator: Pump provides extended runs.
Power Supply: Rechargeable 4.8-V nickel metal hydride (NiMH) battery
pack, 3.3 Ah capacity or
Rechargeable 4.8-V nickel cadmium (NiCad) battery pack,
1.8-Ah capacity
A battery eliminator is available (see Optional Accessories);
use voids the UL Listing for intrinsic safety.
Battery Charging Time: 6 to 8.5 hrs with PowerFlex ® charger
(varies with battery capacity
and level of discharge)
Temperature: Operating: 32 to 113 F (0 to 45 C)
Storage:
-4 to 113 F (-20 to 45 C)
Charging: 50 to 113 F (10 to 45 C)
Humidity: 0 to 95% non-condensing
Protect sample pump from weather when in use
outdoors.
Flow Fault: If the pump is unable to compensate for longer than 15 seconds
due to excessive back pressure, the pump enters fl ow fault.
During fl ow fault, the pump stops, the fault icon appears on the
display, and elapsed time remains on the display. Auto-restart is
attempted up to 5 times. Elapsed time information will be lost
on restart.
Compare the information in this table to pump compensation range to determine appropriate applications.
Typical Back Pressure of Sampling Media (inches water)
Flow Rate (L/min) 1.0 1.5 2.0 2.5
Filter/Pore Size (μm)
25-mm MCE/0.8 6 9 12 15
25-mm MCE/0.45 14 22 28 35
37-mm MCE/0.8 2 3 4 5
37-mm PVC/5.0 1 1 2 2