Operating Instructions
863 Valley View Road, Eighty Four, PA 15330 USA
Wall Sampling Guide
with VersaTrap Cassettes
Flow Rate: 15 L/min
Sample Time: 2 minutes
QuickTake
®
30
Sample Pump
VersaTrap
Cassette
Wall Adapter
(inserted in wall)
Complete Wall Sampling train.
Calibration and Preparation
1. Calibrate sample pump with representative VersaTrap
®
Casse e in line
to desired fl ow rate (15 L/min is recommended for VersaTrap). Remove
casse e a er calibration.
2. Use drill with bit to create a 3/8-inch hole in wall 3 to 6 inches from fl oor.
Caution: Drill slowly to minimize aerosolization of gypsum dust.
3. Insert angled end of VersaTrap Wall Adapter tubing into hole.
4. Prepare a "vacuum" casse e by removing labels from inlet and outlet of a
casse e. A ach rectangular end of adapter to casse e inlet. Use "vacuum"
casse e only to collect excess dust.
5. Turn on pump for 10 seconds. Turn off pump. Remove "vacuum" casse e
and set aside for re-use.
Sampling
Sampling Tip: Take a sample from a non-suspect wall cavity to use as
a negative control.
1. Remove sealing labels from a new casse e and a ach to adapter without
disturbing adapter tubing in wall.
2. Turn on pump and sample for two minutes.
3. Disconnect adapter and casse e. Before replacing sealing labels on casse e,
hold it up to the light. If you cannot see through the slide, discard casse e
and take another sample. Continue sampling until a usable sample is
obtained.
4. Seal casse e inlet and outlet with sealing labels, label casse e, and ship
with blanks to a laboratory for analysis. Go to www.skcinc.com for a list of
laboratories that analyze VersaTrap Casse es.
Wall Sampling Considerations
1. Sample location. Total counts may vary in diff erent types of wall cavities.
E.g., a four-foot wall versus a 12-foot plumbing wall will diff er in volume
of air within the wall cavity.
2. Moisture level. Excessive moisture in a sample location can prevent
microbial contaminants from becoming airborne.
3. Gypsum dust. If gypsum dust is trapped inside the casse e, accurate
microscopic analysis cannot be performed because the dust will mask
mold spores. Following the guidelines in this operating instruction
should help minimize the collection of dust when using this device.
Ordering Information
Form #40094 Rev 1102
Media and Accessories Cat. No.
VersaTrap 37-mm Sampling Cassette
Shelf-life one year from date of manufacture.
225-9820/10
225-9821/50
VersaTrap Wall Adapters 225-9822/5
QuickTake 30 Sample Pump with Rotameter, 10 to 30 L/min,
includes charger (100-240 V)
† Contains Li-Ion ba eries and is subject to special shipping regulations.
228-9530A
†
Wall Inspector Kit includes 10 VersaTrap Cassettes, 10 VersaTrap
Wall Adapters, Wall Adapter Rod, drill with bit, stud fi nder, moisture
meter, and carry case 225-9690
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 com-
plete SKC Limited Warranty and Return Policy, go to h p://www.skcinc.com/
warranty.asp.
(9 Seiten)
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