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Operating Instructions
863 Valley View Road, Eighty Four PA 15330 USA
skctech@skcinc.com
Sampling Pump
Catalog No. 228-9605 and 228-9605B
The Vac-U-Go non-compensating vacuum pump is a rotary vane-type pump
that provides ows up to 30 L/min and maintains sonic ow when used with the
BioSampler. AC-powered, the Vac-U-Go Sampling Pump can be used for a variety
of ambient and indoor air sampling applications including asbestos, bioaerosol,
stack, VOC, and fenceline monitoring. It is ideal for sampling bioaerosols using
the SKC BioSampler or the AGI-30 Impinger.
The line-operated Vac-U-Go Sampling pump has a permanently lubricated motor
that is mounted in a housing with a vacuum pressure gauge to indicate sonic ow
and a throling valve to adjust ow. Both models are supplied with an extension
rod for mounting media and a power cord.
Performance Prole
Flow range: Non-compensated airow up to 30 L/min
Sonic ow with BioSampler (acts as a critical orice) is
approximately 12.5 L/min
Motor: Oil-less rotary vane
Vane life: Approximately 6000 to 27,000 hrs depending on application
Power: Line power only
115 V, AC, 60 Hz (Cat. No. 228-9605)
230 V, AC, 50 Hz (Cat. No. 228-9605B)
Operating
temperature range: 32 to 104 F (0 to 40 C)
Size: 5.5 x 10.5 x 6.5 ins (13.9 x 26.7 x 16.5 cm)
Weight: 12 lbs (5.4 kg)
Standards: None. Pump is not intrinsically safe
Not intended for use outdoors
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15
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20
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VAC
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15
30
25
5
20
10
Z
E
R
O
In HG�
VAC
Cautions
• Pump only clean, dry air.
• Protect pump from dirt and moisture.
• Pump is not intended for use outdoors.
• Protect surrounding items from pump exhaust air.
• Use only a three-wire grounded cable.
• Pump produces a high-pitched whine when operated.
• Donotpumpammableorexplosivegases.
• Do not operate pump in hazardous locations; not UL Listed for intrinsic safety
Operation
The Vac-U-Go Sampler can be operated in two dierent modes: non-compensating
and BioSampler. Vac-U-Go is non-compensating, therefore, it is not suitable for
compliance sampling in non-sonic mode. For indoor air studies, compliance, or other
applications that require a quiet, compensating vacuum pump, use the QuickTake 30
or QuickTake 15 Sample Pump.
Non-compensating Mode
1. Use exible tubing to connect the outlet of a
representative sample medium to the pump
inlet.
2. Connect a rotameter or calibrator to the
sample medium inlet.
3. Using the provided power cable, plug the
pump into a wall outlet and press the pump
power switch to the “on” position.
4. Use the valve adjust to set the desired ow
rate (see rotameter/calibrator operating instructions).
5. Remove rotameter or calibrator and replace representative sample medium with a
new unexposed medium.
6. Sample for the desired sampling period.
7. Turn o pump and unplug from wall outlet.
8. Package sample appropriately for shipment to a laboratory.
Pump
inlet
Valve adjust
to set ow
rate
BioSampler Mode
Pump inlet
1. Prepare BioSampler (see BioSampler
Operating Instructions). Use exible
tubing to connect the BioSampler
outlet to the pump inlet.
Use tubing
to connect
BioSampler
2. Using the provided power cable,
plug the pump into a wall outlet
and press the pump power switch
to the “on” position.
3. Use the valve adjust to open the
valve fully. The pressure gauge
Valve adjust
to open valve
should indicate > 15 inches Hg vacuum.
Note: The BioSampler features built-in critical orices. No other orice is needed to achieve
sonic ow.
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4. Sample for the desired sampling period.
5. Turn o pump and unplug from wall outlet.
6. Package sample appropriately for shipment to a laboratory (see BioSampler Operat-
ing Instructions).
Note: Sonic ow is aained when a vacuum pump pulls air through an orice to create a condition where the downstream pressure is 52% of the upstream pressure. At this point, air velocity
through the orice has reached the speed of sound and cannot increase, therefore, the orice
becomes “critical.” The xed air velocity at the critical orice also limits the airow so that the
condition remains constant regardless of pressure variations in the system. Airow will remain
constant at vacuum levels ≥ 15 inches Hg.
Accessories
Description Catalog No.
Rotameter
Measures 4 to 50 L/min on a 4-inch scale
at 3% accuracy (full scale) 320-440
Certicate of Compliance, optional,
must be ordered when ordering pump P1501
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SKC INC.
LIMITED ONE YEAR WARRANTY
1. SKC warrants that its instruments provided for industrial hygiene, environmental,
gas analysis, and safety and health applications are free from defects in workmanship
and materials under normal and proper use in accordance with operating instructions
provided with said instruments. The term of this warranty begins on the date the instrument is delivered to the buyer and continues for a period of one (1) year.
This warranty does not cover claims due to abuse, misuse, neglect, alteration, accident, or use in application for which the instrument was neither designed nor approved
by SKC Inc. This warranty does not cover the buyer’s failure to provide for normal
maintenance, or improper selection or misapplication. This warranty shall further be
void if changes or adjustments to the instrument are made by other than an employee
of the seller, or if the operating instructions furnished at the time of installation are not
complied with.
2. SKC Inc. hereby disclaims all warranties either expressed or implied, including any
implied warranties of merchantability or tness for a particular purpose, and neither
assumes nor authorizes any other person to assume for it any liability in connection with
the sale of these instruments. No description of the goods being sold has been made a
part of the basis of the bargain or has created or amounted to an express warranty that
the goods will conform to any such description. Buyer shall not be entitled to recover
from SKC Inc. any consequential damages, damages to property, damages for loss of
use, loss of time, loss of prots, loss of income, or other incidental damages. Nor shall
buyer be entitled to recover from SKC Inc. any consequential damages resulting from
defect of the instrument including, but not limited to, any recovery under section 402A
of the Restatement, Second of Torts.
3. This warranty extends only to the original purchaser of the warranted instrument
during the term of the warranty. The buyer may be required to present proof of purchase
in the form of a paid receipt for the instrument.
4. This warranty covers the instrument purchased and each of its component parts.
5. In the event of a defect, malfunction, or other failure of the instrument not caused
by any misuse or damage to the instrument while in possession of the buyer, SKC Inc.
will remedy the failure or defect without charge to the buyer. The remedy will consist
of service or replacement of the instrument. SKC Inc. may elect refund of the purchase
price if unable to provide replacement and repair is not commercially practicable.
6. (a) To obtain performance of any obligation under this warranty, the buyer shall
return the instrument, freight prepaid, to SKC Inc., at the following address:
SKC Inc., National Service Center
863 Valley View Road
Eighty Four, PA 15330 USA
(b) To obtain return authorization information or for further information on the
warranty performance you may telephone 724-941-9701 at the above address. See Service
Policy section in operating manual (if applicable).
7. This warranty shall be construed under the laws of the Commonwealth of Pennsylvania which shall be deemed to be the situs of the contract for purchase of SKC Inc.
instruments.
8. No other warranty is given by SKC Inc. in conjunction with this sale.
Form #3755 Rev 0207
Notice: This operating instruction may not address all safety concerns (if any) associated with this
product and its use. The user is responsible for determining and following the appropriate safety and
health practices and regulatory limitations (if any) before using the product. The information contained
in this document should not be construed as legal advice, opinion, or as a nal authority on legal or
regulatory procedures.
Form 37772 Rev 0804
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