PowerFlex Battery Charging System Cat. No. 223-1000
Operating Instructions
863 Valley View Road, Eighty Four, PA 15330 USA
Tel: 724-941-9701 • www.skcinc.com
PowerFlex Battery Charging System
Small and lightweight, the SKC PowerFlex® is an advanced charging system
designed for optimal charging of NiCad and NiMH battery packs for most SKC
personal air sampling pumps. Batteries for up to four different pump models
(excluding EX and ATEX models and models with lithium-ion [Li-Ion] batteries)
can be charged simultaneously on the five-station PowerFlex.
Pump-specific cables are used to connect battery packs to the PowerFlex so that
only one charger is needed for most SKC personal sample pumps. PowerFlex fully
charges battery packs in 6 to 8.5 hours, and then automatically switches to a safe
pulse trickle charge. Each attached battery pack runs through an independent
cycle. An LED at each port indicates battery charge status. Battery packs can be
charged attached to or detached from the pump.
Performance Profile*
Dimensions:
4.4 x 5.5 x 1.4 in (11.1 x 14 x 3.5 cm)
Weight:
1.1 lbs (0.5 kg)
Charging time‡:
6 to 8.5 hrs
Status LED:
Steady Red = Charging
Steady Green = Trickle charge
Input voltage:
100-240 V
Intrinsic safety:
Not intended for use in explosive or hazardous
locations
Approvals:
Power supply is
is CE marked.
for electrical safety and
* For U.S.-produced pump models only. Not compatible with Ex or ATEX-approved models.
‡ Typical charging times vary with model, battery capacity, and level of discharge.
Operation
Caution
• PowerFlex line source is UL Listed for electrical safety, but the low-voltage
charger unit is not. Do not use PowerFlex in hazardous locations, in rain, or
in standing water. For indoor use only.
• Remove pump-specific cables from the charger when they are not in use
to avoid shorting.
• Do not obstruct the cooling fan vent.
Procedure for PowerFlex Activation
To activate the PowerFlex charger, follow the steps below in the order indicated.
In particular, note that the power cord must be plugged into the electrical outlet
LAST.
1. Plug the switching power supply into the power jack on the back of the PowerFlex.
2. Plug the adapter end of the power cord into the jack on the switching power supply.
3. Plug the other end of the power cord into the electrical outlet (100-240 V).
Failure to follow this sequence of steps will cause the charger to shut down due
to a protective mechanism in the electronics. If this occurs, unplug the power cord
from the electrical outlet and from the switching power supply, wait 2 minutes, and
then plug the adapter end of the power cord into the jack on the switching power
supply and the other end of the power cord into the electrical outlet.
If any LED lights red or green upon plugging the charger into the wall
outlet (no pump[s] attached), discontinue use of the charger and return it
to SKC for repair.
Procedure for Charging AirChek 2000 Pumps
Attention AirChek 2000 Users: To prevent battery damage, follow the steps below
in the order indicated.
1. Ensure the sample pump is off.
2. Open the protective cover on the pump charging port by turning the cover
90 degrees counter-clockwise.
3. Connect the charging plug end of the charging cable to
3
the charging jack on the AirChek 2000 with the keyed
edge facing down. Caution: Forcing the plug into the
pack with the keyed edge facing up will cause damage to the
battery pack.
4. Insert RJ-45 connector on the charging cable into the
PowerFlex charging port.
5. Allow up to 60 seconds for the LED indicator to
light red. If it does not light, see Troubleshooting, Step 1.
6. The battery is fully charged when the LED indicator lights green.
7. Disconnect the RJ-45 connector on the charging cable from the PowerFlex
charging port.
8. Disconnect the charging plug end of the cable from the charging jack on the
AirChek 2000 battery.
9. Close the protective cover on the pump charging port.
Procedure for Charging Other SKC Pump Models
The following instructions apply to each charging port and sample pump used.
Each port operates independently.
1. Ensure the sample pump is off.
2. Select the appropriate pump-specific cable.
3. Insert the RJ-45 connector into a charging port on the PowerFlex. The connector
should slide easily into the port.
4. Insert the charging plug end of the cable into the charging jack on the appropriate
sample pump.
AirChek 52 Note: Plug the charging plug end of the cable into the jack on the
back of the battery pack.
5. The LED at the port containing the pump will light a steady red to indicate that
a charge sequence has been initiated. Batteries for up to four different pump models
can be charged simultaneously on the five-station PowerFlex.
If the LED does not light red within 60 seconds, see Troubleshooting, Step 1.
6. Once the battery pack is fully charged, the LED at the port will change to a
steady green to indicate that PowerFlex has switched to a trickle charge to keep
the battery at full charge.
7. The battery can be removed at any time after the LED turns green. Detach the
battery from the cable and remove the cable from the charger.
Important Note:
Remove pump-specific cable from charger when not in
use to avoid shorting.
Important Note:
Pumps may remain connected to the charger indefinitely
(without causing damage to the pump or charger).
Troubleshooting
If the LED does not light when a battery pack is plugged into a port or the LED
does not turn off after a battery pack is unplugged, follow the steps in the table.
Step Action
1 Keep the unit powered on. If the battery is deeply
discharged, the LED may take up to 30 minutes
to light or turn off.
2 Check fan. Is it running?
a. Check power to unit and/or
b. Move unit to a different wall outlet
3 Move battery to different port
4 Unplug charger from its power source for 20
seconds. Plug it back into power source.
5 Replace pump-specific cable
6 Try a different battery pack
No result, Action
Go to Step 2
Yes result, Action
Proceed with operation
Go to step 3
Proceed with operation
Go to Step 4
Go to Step 5
Proceed with operation
Proceed with operation
Go to Step 6
Call SKC
Proceed with operation
Proceed with operation —
previous battery pack may
be damaged; call SKC.
PowerFlex Technology
Charging NiCad/NiMH batteries is generally accomplished by applying constant current to the battery.
SKC PowerFlex Chargers use a technology that is new to industrial hygiene equipment batteries.
Reflex charging† delivers pulses of current instead of constant current to charge batteries. In between
pulses, PowerFlex applies short reverse pulses that discharge the battery slightly and short pauses.
This eases the battery into a full and uniform charge. It helps to prevent dramatic increases in internal
temperature and pressure that can damage the battery and shorten its life.
† Patented by Galaxy Power, Inc.
Note:
Discharging the pump battery before charging is not necessary with this system
because the charging technology does not promote memory. However, if the user
desires to discharge before charging, simply run the pump until it stops, then
charge the battery.
PowerFlex Charging System
PowerFlex 5-station Charger† includes power supply and cord.
Purchase pump-specific cables separately; choose from list below
100-240 V
PowerFlex Single Charger† includes power supply. Purchase pumpspecific cables separately; choose from list below.
100-240 V
Cat. No.
PowerFlex Pump-specific Cables†
AirChek® 2000
Universal XR (5 cell)
Universal XR (4 cell, MSHA)
AirChek 52
Cat. No.
223-1001
223-1002
223-1003
223-1004
Accessory
Nylon Carry Case, for 5-station PowerFlex, includes
padded shoulder strap and compartment for cables
Cat. No.
223-1000
223-2000
224-903
† For U.S.-produced pump models only. Not compatible with Ex or ATEX-approved models.
SKC Limited Warranty and Return Policy
SKC products are subject to the SKC Limited Warranty and Return Policy, which provides SKC’s sole
liability and the buyer’s exclusive remedy. To view the complete SKC Limited Warranty and Return
Policy, go to http://www.skcinc.com/warranty.asp.
Form 37783 Rev 1706
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