
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 andAirLite sample pumps.All required single-tube low flow
sampling accessories are included in one compact holder. The
built-in CPC maintains a constant pressure across the holder’s
needle valve for flow stability.
Operating Instructions
Form 38035 Rev 1803
Operation
See Notes before calibrating and sampling.
1. Set pump flow 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) flow rate through the
sorbent tube. Use a small flathead screwdriver to turn flow
adjust screw on holder (counterclockwise to increase flow,
clockwise to decrease flow). 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 fitting.
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 flow rate has remained
within ± 5% of the set flow.
Notes
Do not shut off flow completely with flow adjust screw or use an
oversized screwdriver to adjust flow; 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 flow faults shortly after the holder tubing is attached
in Step 2, check that the needle valve is open by using a small
flathead screwdriver to turn the flow adjust screw on the holder
slightly counterclockwise. If flow 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
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 fitting
(fits all SKC protective
tube covers)
Flow adjust screw
(needle valve)
Built-in CPC
(for flow stability)
Outlet/Tygon tubing to pump
Larger ID sleeve for
larger OD tubes
Pump
inlet