SKC 225-100 GS-3 Cyclone - Manual

GS-3 Multiple-inlet Cyclone
Cat. Nos. 225-100 and 225-103
Description
The GS-3 Cyclone is a 10-mm, lightweight, multiple-inlet, conductive plastic
sampler that uses a standard three-piece cassett e and fi lter for the collection of respira-
ble dust particles. Designed to conform to ISO/CEN particle size-selection criteria (ISO
7708:1995), the GS-3 Cyclone has a 50% cut-point of 4.0 μm (with bias within ISO/OSHA/
NIOSH requirements) at 2.75 L/min* or a 3.5 μm at 3.7 L/min.
† In addition, the GS-3
Cyclone meets the requirements in the OSHA proposed rule for silica.
The GS-3 Cyclone can be used with a 25 or 37-mm three-piece cassett e with the
corresponding cassett e adapter and fi lter.
Assembly (Figure 1)
The GS-3 Cyclone is supplied fully assembled
with bowl adapter and 37 or 25-mm cassett e
adapter dependent upon model (Cat. Nos.
225-100 or 225-103, respectively). Replacement
cassett e adapters are available, allowing the
user to adapt whichever model they are using
to another cassett e size.
1. Disassemble a three-piece cassett e and set
aside inlet section (usually marked “inlet”).
Keep inlet section for closing the cassett e
aft er sampling.
2. Select a fi lter and support pad as specifi ed
in the sampling method. Place support pad
into cassett e outlet and place fi lter on top
of support pad. Insert cassett e ring (middle)
section into cassett e outlet. Ensure a fi rm
seal.
3. Hold cyclone upside down (cassett e adapter
facing downward). Insert cassett e adapter
into cassett e middle ring section. Press until
a fi rm seal is established.
4. Ensure thumbscrew on cyclone is secure
and that the grit pot remains on the cyclone
body during sampling.
* Calibrated at U.K. Health and Safety Laboratories. Visit
www.skcinc.com/prod/225-100.asp to view the collection
effi
ciency curve.
† Determined using experimental data obtained at fl ows
from 2.0 to 4.0 L/min.
Operating Instructions
863 Valley View Road, Eighty Four, PA 15330 USA
Tel: 724-941-9701 Fax: 724-941-1369 e-mail: [email protected]
Figure 1
GS-3 Cyclone with Filter
Cassette — Exploded View
Cassette outlet
Support pad
Filter
Cassette ring (middle)
Cassette adapter
(25 or 37 mm, supplied
assembled with cyclone body)
Bowl adapter (supplied
assembled with cyclone body)
Nodule for holder
Retaining tab
Thumbscrew
Cyclone body
Grit pot
Cyclone top