SKC All-in-One Low Flow Adapter/Single
Tube Holder
Cat. No. 224-27
Introduction
The SKC All-in-One replaces the SKC Single Adjustable Low
Flow Tube Holder and CPC for single-tube sampling with AirChek
Series and AirLite sample pumps. All required single-tube low fl ow
sampling accessories are included in one compact holder. The
built-in CPC maintains a constant pressure across the holder’s
needle valve for fl ow stability.
Operating Instructions
Form 38035 Rev 1803
Operation
See Notes before calibrating and sampling.
1. Set pump fl ow rate to 1.5 L/min.
See pump operating
instructions
.
2. Attach Tygon tubing to pump inlet.
3. Break tips off the sorbent tube to be used for calibration and
insert into rubber sleeve on holder (arrow on tube pointing
toward pump).
4. Use a calibrator to calibrate (set) fl ow rate through the
sorbent tube. Use a small fl athead screwdriver to turn fl ow
adjust screw on holder (counterclockwise to increase fl ow,
clockwise to decrease fl ow).
See pump operating instructions
for details.
5. Remove tube used for calibration and repeat Step 3 using a
clean, labeled tube for sampling.
6. Thread protective tube cover onto holder’s threaded fi tting.
7. Use cover’s collar clip to attach holder on clothing in the
breathing zone.
8. Sample for the desired time.
9. When sampling is complete, remove sample sorbent tube
and cap. Insert sorbent tube used for calibration into sleeve
on holder. Use calibrator to verify fl ow rate has remained
within ± 5% of the set fl ow.
Notes
Do not shut off fl ow completely with fl ow adjust screw or use an
oversized screwdriver to adjust fl ow; valve or thread seat damage
may result.
Ensure sorbent tube fits snugly in rubber sleeve prior to
sampling to avoid any air leakage. Two sleeves, each a different
inner diameter (ID), are supplied.
Calibrate before each sampling operation using the tube holder
and pump to be used for sampling.
If the pump fl ow faults shortly after the holder tubing is attached
in Step 2, check that the needle valve is open by using a small
fl athead screwdriver to turn the fl ow adjust screw on the holder
slightly
counterclockwise. If fl ow fault continues, check that the
two small holes on the bottom of the built-in CPC are not blocked.
See related bullet below
.
Two small holes on the bottom of the built-in CPC can become
blocked. Periodically inspect. Clean, if needed, with a small pick
and blow particles away with a puff of air.
For more information, see SKC Sample Setup Guides at
www.skcinc.com or email [email protected].
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.
All-in-One Low Flow Adapter/Single Tube Holder with built-in
CPC connected to AirChek TOUCH sample pump
Tube holder with
rubber sleeve
Threaded
fi
tting
(
fi ts all SKC protective
tube covers
)
Flow adjust screw
(
needle valve
)
Built-in CPC
(
for fl ow stability
)
Outlet/Tygon tubing to pump
Larger ID sleeve for
larger OD tubes
Pump
inlet