Introduction
Unpacking
Principle of Operation
Model 200 Personal
Impactor Description
Operation
Specifications
Spare Parts and
Accessories List
Technical Contacts
Returning for Service
References
Appendix A: Impactor
Flow Calibration
Instructions
Appendix B: Typical
Model 200 Impactor
Pressure Drops
Manual History
The following is a manual history of the Personal Impactors Model 200
User Guide (P/N 6011802).
Revision Date
A June 2018
ii
Part Number
6011802 / Revision A / June 2018
Copyright
TSI Incorporated / 2018 / All rights reserved.
Address
MSP, A Division of TSI / 5910 Rice Creek Parkway / Shoreview, MN 55126 / USA
E-mail Address
answers@tsi.com
Limitation Of Warranty And Liability
(effective April 2014)
(For country-specific terms and conditions outside of the USA, please visit www.tsi.com.)
Seller warrants the goods, excluding software, sold hereunder, under normal use and service
as described in the operator's manual, to be free from defects in workmanship and material for
12 months, or if less, the length of time specified in the operator's manual, from the date of
shipment to the customer. This warranty period is inclusive of any statutory warranty. This
limited warranty is subject to the following exclusions and exceptions:
Warranty
a. Hot-wire or hot-film sensors used with research anemometers, and certain other
components when indicated in specifications, are warranted for 90 days from the date of
shipment;
b. Pumps are warranted for hours of operation as set forth in product or operator’s manuals;
c. Parts repaired or replaced as a result of repair services are warranted to be free from
defects in workmanship and material, under normal use, for 90 days from the date of
shipment;
d. Seller does not provide any warranty on finished goods manufactured by others or on any
fuses, batteries or other consumable materials. Only the original manufacturer's warranty
applies;
e. This warranty does not cover calibration requirements, and seller warrants only that the
instrument or product is properly calibrated at the time of its manufacture. Instruments
returned for calibration are not covered by this warranty;
f. This warranty is VOID if the instrument is opened by anyone other than a factory
authorized service center with the one exception where requirements set forth in the
manual allow an operator to replace consumables or perform recommended cleaning;
g. This warranty is VOID if the product has been misused, neglected, subjected to accidental
or intentional damage, or is not properly installed, maintained, or cleaned according to the
requirements of the manual. Unless specifically authorized in a separate writing by Seller,
Seller makes no warranty with respect to, and shall have no liability in connection with,
goods which are incorporated into other products or equipment, or which are modified by
any person other than Seller.
The foregoing is IN LIEU OF all other warranties and is subject to the LIMITATIONS stated
herein. NO OTHER EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR PARTICULAR
PURPOSE OR MERCHANTABILITY IS MADE. WITH RESPECT TO SELLER’S BREACH
OF THE IMPLIED WARRANTY AGAINST INFRINGEMENT, SAID WARRANTY IS LIMITED
TO CLAIMS OF DIRECT INFRINGEMENT AND EXCLUDES CLAIMS OF CONTRIBUTORY
OR INDUCED INFRINGEMENTS. BUYER’S EXCLUSIVE REMEDY SHALL BE THE
RETURN OF THE PURCHASE PRICE DISCOUNTED FOR REASONABLE WEAR AND
TEAR OR AT SELLER’S OPTION REPLACEMENT OF THE GOODS WITH NONINFRINGING GOODS.
TO THE EXTENT PERMITTED BY LAW, THE EXCLUSIVE REMEDY OF THE USER OR
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OF SOFTWARE, SELLER WILL REPAIR OR REPLACE DEFECTIVE SOFTWARE OR IF
UNABLE TO DO SO, WILL REFUND THE PURCHASE PRICE OF THE SOFTWARE. IN NO
EVENT SHALL SELLER BE LIABLE FOR LOST PROFITS, BUSINESS INTERRUPTION, OR
ANY SPECIAL, INDIRECT, CONSEQUENTIAL OR INCIDENTAL DAMAGES. SELLER
iii
SHALL NOT BE RESPONSIBLE FOR INSTALLATION, DISMANTLING OR
Service Policy
Knowing that inoperative or defective instruments are as detrimental to TSI as they are to our
customers, our service policy is designed to give prompt attention to any problems. If any malfunction is discovered, please contact your nearest sales office or representative, or call TSI’s
Customer Service department at 1-800-874-2811 (USA) or +001 (651) 490-2811
(International).
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TSI, the TSI logo, and MSP logo are registered trademarks of TSI Incorporated.
REINSTALLATION COSTS OR CHARGES. No Action, regardless of form, may be brought
against Seller more than 12 months after a cause of action has accrued. The goods returned
under warranty to Seller's factory shall be at Buyer's risk of loss, and will be returned, if at all,
at Seller's risk of loss.
Buyer and all users are deemed to have accepted this LIMITATION OF WARRANTY AND
LIABILITY, which contains the complete and exclusive limited warranty of Seller. This
LIMITATION OF WARRANTY AND LIABILITY may not be amended, modified or its terms
waived, except by writing signed by an Officer of Seller.
iv Personal Impactor Model 200
Contents
Manual History ............................................................................................ ii
Warranty ..................................................................................................... iii
Contents ...................................................................................................... v
Appendix B: Typical Model 200 Personal Impactor Pressure Drops .. 10
v
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vi Personal Impactor Model 200
Introduction
I M P O R T A N T
This User Guide contains important safety and operating instructions
for the Model 200 Personal Impactor. Any use other than that intended
by the manufacturer in this user guide is not proper use of the Model
200 Personal Impactor.
N O T E
Six versions of the Model 200 Impactors are available from TSI
Incorporated. There are two impactor cut sizes, either 2.5 µm or 10 µm
aerodynamic diameter, and each particle cut size can be achieved at
three different flow rates: 2, 4, or 10 L/min. The specific cut size and
flow rate for each impactor configuration are stamped inside the nozzle
cap. Figure 1 below shows the six impactor versions. Each impactor
version is manufactured in a different color to facilitate proper
identification by the user.
The Model 200 Personal Impactor is a single-stage impactor with an
after-filter. The impactor stage removes particles larger than the cut size
(either 2.5-µm or 10-µm aerodynamic diameter), and the smaller particles
are collected on the after-filter. The particles on the impaction ring (those
larger than the cut size) are normally discarded, and the particles
collected on the after-filter are available for gravimetric and/or chemical
composition analysis. The Personal Impactor obtains personal exposure
data while the wearer goes about their normal activities. An appropriate
personal sampling air pump worn by the user is necessary to provide the
necessary air flow. See Appendix B for typical impactor pressure drops.
Figure 1. Personal Impactor Configurations
1
Unpacking
Carefully remove the Model 200 Personal Impactor from its shipping box
and visually inspect the impactor for any damage it may have suffered in
transit. Please contact your shipping company if any damage is noted.
The Model 200 Personal Impactor is shipped with this User Guide.
Principle of Oper a tion
The operation of the Personal Impactor is based on the inertial separation
of airborne particles using a conventional single-stage impactor. For more
information on impactors, see Marple (2004). In this device the particleladen air is accelerated through a number of identical nozzles, and the
exiting jets impinge upon a porous metal ring. The large particles,
because of their inertia, cross the air streamlines and impact on the ring,
and the small particles are carried along the air streamlines and are
collected on the after-filter.
Model 200 Personal Impactor D escription
A schematic diagram of the Model 200 Personal Impactor is shown in
Figure 2. The sampler consists of three basic parts: a nozzle cap, an
impaction ring assembly, and a base. The impaction ring serves both as
an impaction surface and as a clamping ring for the after-filter. The afterfilter is supported by the filter support screen and the base.
The impactor stage has 5 or 10 nozzles, depending on the flow rate and
cut size, located in a circle along the outer edge of the nozzle cap. Air
passing through these nozzles impinges on the annular impaction
surface. This annular disk of porous stainless steel is cemented onto the
ring that clamps the after-filter to the base.
The clamping force is applied by attaching the nozzle cap, forcing the
after-filter hold-down ring onto the outer edge of the filter. This force
clamps the after-filter to the filter support screen and base to aid in
forming a seal between the filter and the base.
2 Personal Impactor Model 200
Figure 2. Schematic Diagram of Personal Impactor. Phillips flat head screws are
normally used instead of the spanner screws
User Guide 3
Operation
Figure 3. Model 200 Personal Impactor in Clamping Device
Figure 4. Assembled Model 200 Personal Impactor
Disassembly Procedure
The Model 200 Personal Impactor is disassembled by removing the two
screws holding the nozzle cap to the base. Optional spanner screws (flat
head with two holes) and matching screw driver could be used for
applications where there is a risk of the wearer opening the sampler.
After the screws are removed, the nozzle cap is lifted straight up and
clear of the impaction ring assembly. Next, the impaction ring assembly is
removed exposing the after-filter.
Coating the Impaction Plate
To keep the particles from bouncing off the impaction ring, light mineral
oil should be applied to this surface.
For most sampling applications, saturating the porous metal with a light
mineral oil is best. As the particles strike the ring, the oil will wick up
through the deposit and continually provide a fresh surface for new
particles to strike. The oil can be applied to the ring with an eye dropper
by placing the drops evenly about the disk. Fourteen drops is about the
maximum that the plate will hold. When it takes 5 to 10 seconds for a
drop to disappear into the ring, the ring is saturated, and no more oil
should be added. Excess oil can be removed from the ring by touching a
4 Personal Impactor Model 200
tissue to the porous surface. If oil drips from the ring when it is held
N O T E
The porous metal impaction ring needs to be coated as described in
Coating the Impaction Plate to eliminate particle bounce.
vertically, too much has been applied.
After each use, the particles on the impaction ring should be removed by
scraping the surface with a knife or razor blade and, periodically, more oil
should be added. An alternate technique is to remove all the oil and recoat the ring after each run. Oil can be removed from the ring by placing
it in a soap solution or in a solvent such as cyclohexane, and then rinsing
and drying completely.
If the particles are very coarse, such as sand, they may still bounce from
the oiled ring. In this case a thin layer of grease (i.e., heavy-duty silicon
grease) should be spread on the surface of the impaction ring. This
grease will have to be removed and replaced between runs.
Assembly Procedure
To assemble the impactor, a filter support screen and a 37-mm filter are
placed in the base, and the impaction ring assembly is set on top of the
filter. Next, the nozzle cap is placed over the impaction ring assembly,
and the nozzle cap is attached to the base with two 8-32 x 1/2” flat-head
screws. When tightening the screws care must be taken to ensure that
the same torque is applied to both screws.
Another way of assembling the Model 200 Personal Impactor is with the
impactor Clamping Device shown in Figure 3. This device ensures that
the nozzle cap is clamped parallel to the base and that the correct
clamping force is applied to the after-filter. The handle of the clamping
device is turned until the clutch in the handle slips. The screws are
tightened, and the sampler is now completely assembled (Figure 4) and
can be removed from the clamping device.
Operating Procedure
First, disassemble the Personal Impactor, as described above, and clean
the parts. The nozzle cap can be cleaned by rinsing it with isopropyl
alcohol. After the parts are cleaned, the filter support screen and filter are
placed in the base and assembled as described above.
After assembly is completed, the vacuum source (personal sampling
pump) is attached to the impactor outlet, drawing either 2.0, 4.0 or
10 L/min through the Model 200 Personal Impactor. An impactor
calibration cap (sold separately by TSI Incorporated as an accessory) can
be used to measure the flow rate at the inlet of the Model 200 PEM. See
Appendix A for the proper use of the impactor Calibration Cap and
Appendix B for typical impactor pressure drops.
User Guide 5
N O T E
The inlet flow rate to the Model 200 Personal Impactor must be
measured and controlled to within ±5% of the specified flow rate. The
specified cut size for the Model 200 Personal Impactor is valid as long
as the required flow rate is maintained by the sampling pump
throughout the complete sampling period.
The total sampling time depends on the flow rate of the specific impactor
and on the particle concentration at the selected sampling location. A
typical sampling time is 8 hours to determine the 8-hr average
concentration at a work-place environment.
Specifications
Spare Parts and Accessor i e s List
All replacement parts must be factory approved. Call the manufacturer for
details (see Technical Contacts).
6 Personal Impactor Model 200
Technical Contacts
If you have any difficulty installing the instrument, or if you have
technical or application questions about this system, contact an
applications engineer at one of the locations listed below.
If the Model 200 Personal Impactor does not operate properly, or if
you are returning it for service, visit our website at http://rma.tsi.com
or contact TSI at:
TSI Incorporated
500 Cardigan Road
Shoreview, MN 55126 USA
Phone: 1-800-680-1220 (USA) or +1 651-490-2860
E-mail: answers@tsi.com
TSI GmbH
Neuköllner Strasse 4
52068 Aachen
GERMANY
Visit our website at http://rma.tsi.com and complete the on-line “Return
Merchandise Authorization” form or call TSI at 1-800-680-1220 (USA),
(651) 490-2860, or 001 651 490 2860 (International) for specific return
instructions.
Customer Service will need the following information:
The instrument model number
The instrument serial number
A purchase order number (unless under warranty)
A billing address
A shipping address
Use the original packing material to return the instrument to TSI. If you no
longer have the original packing material, seal off any ports to prevent
debris from entering the instrument and ensure that the display and the
connectors on the instrument front and back panels are protected. This
instrument is very fragile and must be packed in a manner appropriate for
a precision instrument.
References
1) Marple, V.A. "History of Impactors-The First 110 Years". Aerosol
Science and Technology, 38:247-292, 2004.
2) Marple, V. A., “PEM Development, Fabrication, Evaluation and
Calibration”, Final Report submitted to Research Triangle Institute,
July 1989.
8 Personal Impactor Model 200
Appendix A: Im p a ctor Flow Calibr ation
Instructions
A correct flow calibration of the impactor requires a special attachment
known as the Flow Calibration Cap (Figure 5). The impactor flow
calibration cap is intended to provide for a single inlet to the impactor
sampler to which a flowmeter can be attached. The calibration cap is
used by pressing the cap onto the nozzle cap of the impactor. A
flowmeter is attached to the ½-inch diameter inlet tube on top of the
calibration cap. The barbed fitting on the side of the cap is for the
purpose of attaching a pressure gauge. Measuring the pressure between
the flowmeter and the impactor is only necessary if there is a large
pressure drop across the flowmeter. If the flowmeter has a low-pressure
drop, such as a mass flowmeter, bubble flowmeter, or a laminar flow
element meter, the pressure at the calibration cap does not need to be
measured, and the pressure tap can be closed off with a rubber cap.
The steps in using the impactor Flow Calibration Cap are:
1. Connect a flowmeter to the inlet of the flow calibration cap.
2. Turn on pump connected to the impactor.
3. Place the calibration cap on the impactor (be sure O-ring is properly
seated in the O-ring groove inside the calibration cap).
4. Check impactor flow rate with a flowmeter connected to the flow
calibration cap.
Figure 5. Flow Calibration Cap
User Guide 9
Appendix B: Typical Mo d el 200 Personal
PEM
Description
Cut
Point
(m)
Flow Rate
(L/min)
# of
Nozzles
Nozzle
Diameter
(in)
Nozzle
P
(in wg)
Filter P
(in wg)
Total P
(in wg)
PEM 2-10
10
2.0
5
0.1200
0.003
1.37
1.37
PEM 4-10
10
4.0
10
0.1200
0.003
2.73
2.73
PEM 10-10
10
10.0
10
0.1520
0.008
6.83
6.84
PEM 2-2.5
2.5
2.0
5
0.0430
0.190
1.37
1.56
PEM 4-2.5
2.5
4.0
10
0.0430
0.190
2.73
2.92
PEM 10-2.5
2.5
10.0
10
0.0670
0.201
6.83
7.03
Filter pressure drop assumes typical 37 mm glass fiber filter
Impactor Pressu r e Drops
The table below shows the typical pressure drop that is characteristic for
each type of impactor when it is used with a 37-mm glass fiber filter (e.g.
Gelman Type A/E).
10 Personal Impactor Model 200
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