Operating Instructions
AirChek® 52
Cat. No. 224-52
SKC Inc.
863 Valley View Road
Eighty Four, PA 15330
Form 37714 Rev 1302
Table of Contents
Description ...........................................................................................1
Performance Profi le ...............................................................................2
Setup .....................................................................................................5
Installing the Battery Pack .....................................................................5
Charging the Battery Pack.....................................................................5
Operation ..............................................................................................6
High Flow Applications ..........................................................................6
Setup ...........................................................................................6
Setting/Verifying Flow Rate .........................................................7
Sampling ......................................................................................7
Low Flow Applications (single tube) ......................................................9
Setup ...........................................................................................9
Setting/Verifying Flow Rate .......................................................10
Sampling ....................................................................................11
Low Flow Applications (multiple tube) .................................................12
Setup .........................................................................................12
Setting/Verifying Flow Rate .......................................................13
Sampling ....................................................................................15
Maintenance .......................................................................................16
Pump Inlet Filter ..................................................................................16
Replacing the Battery Pack .................................................................16
Battery Eliminator ................................................................................17
Replacement Parts ...................................................................... 18-21
Optional Accessories ........................................................................22
Warranty .............................................................................................23
Indicates a warning or caution.
Indicates a premier feature of the pump.
Description
The AirChek 52 Personal Sample Pump is designed for rugged industrial use at
fl ows from 5 to 3000 ml/min. Ideal for on-worker applications, use the AirChek 52 for
short-term or full-shift sampling with sorbent tubes, impingers, size-selective samplers,
or fi lter cassettes.
Durable RFI-shielded Case
provides protection from RFI
(27 to 1000 MHz)
Control Cover
Accessory
Mounting
Screws allow
sampling
accessories to
be secured to
the pump (e.g.,
impinger holder)
Quick-change
Rechargeable
Battery
Pump Intake with
replaceable fi lter
Top view: AirChek 52 with LCD indicator
(raised)
protects
LCD, fl ow
adjustment,
and on/off
button
Digital
LCD shows
elapsed run
time, low
battery, and
fl ow fault
Flow
Adjustment
adjusts fl ow
rate from
1000 to
3000 ml/min
On/Off
Button
AirChek 52 Sample Pump
1
Performance Profi le
Flow Range: 1000 to 3000 ml/min
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
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 2345
37-mm PVC/5.0 1122
Compare the information in this table to pump compensation range to determine appropriate applications.
Run Time: NiCad Battery: 8 hrs minimum at above compensation ranges;
Power Supply: Rechargeable 4.8-V nickel metal hydride (NiMH) battery
(5 to 500 ml/min requires low fl ow accessories, see page 20.)
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
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.
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
(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.
charger
2
Low Battery Fault: LCD displays low battery icon and pump shuts down. LCD
remains on.
Time Display: LCD shows elapsed pump run time in minutes up to 99,999.
Note:
Older pump models display elapsed time up to
three digits (999) and then roll back to zero.
LCD Indicator: LCD always remains on. Displayed elapsed run time
information resets when pump is started.
Noise Level: 62.5 dBA* - pump without case
55 dBA* - pump housed in noise-reducing case (optional
accessory Cat. No. 224-96C, see page 22)
* Measured 3 ft (1 m) distance from pump operating at
2 L/min with a 37-mm, 0.8-μm MCE fi lter cassette
RFI/EMI Shielding: 27 to 1000 MHz
Intrinsic Safety: UL Listed for Intrinsic Safety: Class I, Division 1 and 2,
Groups A, B, C, D; Class II, Division 1 and 2, Groups E, F,
G; and, Class III, Temperature Code T3C. ATEX-approved
models available. Contact SKC.
Dimensions: 5 x 3 x 1.75 ins (12.7 x 7.6 x 4.4 cm)
Weight: 20 oz (567 gm)
Multiple-tube
Sampling: Requires additional accessories to sample with up to four
sorbent tubes simultaneously at fl ows from 5 to 500 ml/min
(dependent on back pressure). See Optional Accessories on
page 22.
Tubing: Requires 1/4-inch ID tubing
CE marked UL Listed for intrinsic safety
ATEX-approved models available
3
Table 1. AirChek 52 Run Time in Hours with NiCad Battery
Following are typical run times achieved when using a fully charged nickelcadmium (NiCad) battery pack. Data is sorted by type of sample media. All run
times are listed in hours. Results are obtained using a new pump and new fully
charged battery. Pump performance may vary.
Mixed Cellulose (MCE) fi lter, 0.8-μm pore size
Flow Rate (L/min)
2.0 24.5 16.5
2.5 22.9 12.7
3.0 18.9 **
Polyvinyl Chloride (PVC) fi lter, 5.0-μm pore size
Flow Rate (L/min)
2.0 25.8 24.9
2.5 24.3 21.1
3.0 25.1 18.6
** Filter back pressure exceeded pump capability during testing.
Note:
Increases in back pressure during sampling due to buildup of sample on
Filter Diameter
37 mm 25 mm
Filter Diameter
37 mm 25 mm
the fi lter can decrease ba ery life.
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 are obtained using a new pump and new fully
charged battery. Pump performance may vary.
Mixed Cellulose (MCE) fi lter, 0.8-μm pore size
Flow Rate (L/min)
2.0 40 37
2.5 38 29
3.0 34 25
Filter Diameter
37 mm 25 mm
Note:
Polyvinyl Chloride (PVC) fi lter, 5.0-μm pore size
Flow Rate (L/min)
2.0 56 47
2.5 48 41
3.0 42 38
Filter Diameter
37 mm 25 mm
Increases in back pressure during sampling due to buildup of sample on
the fi lter can decrease ba ery life.
4
Setup
Installing the Battery Pack
1. Align arms on top half of case with slots on either side of the battery pack
housing. Ensure the back of the battery pack with the charging jack is on
the same side as the belt clip.
2. Slide battery pack up until arms click into place.
3. Push each security screw into the battery pack housing and tighten.
4. Completely charge battery before use (see Charging the Battery Pack).
Charging the Battery Pack
For proper maintenance of battery packs, SKC offers
a charger (see Accessories on page 22) that conditions
the battery for optimum performance in 6 to 8.5 hours.
1. For optimum charge, ensure pump is not running.
2. Insert the charging plug into the sampler’s charging jack.
3. Charge battery pack completely before use.
Plug the SKC PowerFlex® charger cable into the jack on the back of the
battery pack (see charger operating instructions).
After charging the battery pack, it is good practice to run the pump for
approximately fi ve minutes before calibrating. This ensures the battery
is in more steady-state conditions and improves the agreement in pre
and post-sampling calibrations.
• To comply with intrinsic safety regulations, do not charge or operate
the pump from the charger in hazardous locations.
• Using a non-approved charger voids any warranty.
• Use of a repaired or rebuilt battery pack voids any warranty and the UL
Listing for intrinsic safety.
• Use of any device other than the approved battery pack to power the
pump voids the UL Listing for intrinsic safety and any warranty.
• Ensure proper orientation of charging cable before plugging it into the
charging jack. Improper orientation/contact will short-circuit the battery and voids any warranty.
• Short-circuiting the battery pack will render it immediately inoperative.
• Failure to follow warnings and cautions voids any warranty.
The battery pack may be kept on the SKC-approved charger for an
indefi nite time.
For information on SKC pump battery packs,
visit http://www.skcinc.com/instructions/1756.pdf.
5
Operation
1
3
45678
High Flow Applications (1000 to 3000 ml/min)
1 LCD
2 Flow adjustment screw
3 On/Off button
4 Pump intake/inlet hose barb
5 Protective control cover
6 Belt clip
7 Charging jack
8 Accessory mounting screws
Figure 1
Front, back, and top views of AirChek 52 Sampler
For additional drawings, see pages 19 and 21.
Setup
Ensure that the battery is fully charged
before sampling. See page 5 for
details.
After charging the battery pack, it is
good practice to run the pump for
1
approximately fi ve minutes before
calibrating. This ensures the battery
is in more steady-state conditions
and improves the agreement in pre
and post-sampling calibrations.
6
Charger and battery
connected
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