Sensidyne Gilian User manual

Document No. F-PRO-1247
(Revision C)
CYCLONE & CASSETTE
HOLDER ASSEMBLY KIT
Sensidyne, Inc. • 16333 Bay Vista Drive
Clearwater, Florida 33760 USA
[phone] • [phone] • Fax: [phone]
web: www.sensidyne.com • e-mail: [email protected]

2
PRELIMINARY
CYCLONE & CASSETTE HOLDER ASSEMBLY KIT
Sensidyne Document No. F-PRO-1247 (Rev C)
2
Introduction
The Gilian Cyclone & Cassette Holder Assembly Kit
(PNº 800061) provides a simple method for centrifugal
separation of respirable dust from particulate matter.
The assembly is designed to be worn on a shirt collar
to obtain a respirable dust sample from the breathing
zone.
The assembly consists of a spring-loaded Cassette
Holder Assembly and a Cyclone Assembly that inter-
faces with the inlet of a filter cassette. The cyclone
and holding assembly will accept most brands of filter
cassettes. The air sampling tubing can be connected
either directly to the filter cassette boss, or indirectly
with the use of a Leur Taper Adapter.
Theory of Operation
The concept of the cyclone is to separate respirable
dust from particulate matter of 10 microns or more.
With an air sampler set at 1.7 LPM, the cyclone inlet
draws in the air and creates a spiral action which
separates the larger particles from the lighter ones.
The cyclone’s grit pot accepts the heavier particles
while the lighter particles (less than 10 microns) are
drawn up and trapped into the filter cassette.
Some filter cassettes provide a built-in hose boss
which allows you to connect the tubing directly to the
filter cassette (see Figure 1).
NOTE
The Grit Pot [11] and Vortex Finder Assembly [7] must be
properly attached before installing the filter cassette.
Installation (Direct Connection)
1) Spread the Upper [4] and Lower [9] Holding Plates
of the Holder Assembly and seat the cassette onto
the Vortex Finder Assembly [7] with the cassette
inlet boss facing down. The outlet boss is posi-
tioned to come through the Upper Holding
Plate␣ [4].
2) Allow the Holding Assembly to close and secure
the cassette into position. Attach the Hosing As-
sembly [2] to the cassette’s outlet boss.
Figure 1
Cassette Configuration
(with built-in air boss)

PRELIMINARY
Sensidyne Document No. F-PRO-1247 (Rev C)
3
CYCLONE & CASSETTE HOLDER ASSEMBLY KIT
Installation (Leur Taper Adapter)
Refer to Figure 2 for installation.
NOTE
The Grit Pot [11] and Vortex Finder Assembly [7] must be
properly attached before installing the filter cassette.
If you are using a cassette without a built-in air boss,
you must first install a Leur Taper Adapter [5].
1) Seat the Adapter Fitting [19] into the hole located
in the Upper Holding Plate [4]. Screw the Locknut
[18] to the bottom side of the Adapter Fitting and
tighten. The Leur Taper Adapter [5] fits into the
cassette’s outlet boss.
2) With the Leur Taper Adapter in place, spread the
Upper and Lower Holding Plates [4 & 9] apart and
seat the loaded cassette onto the cyclone’s Vortex
Finder Assembly [7], with the cassette’s inlet boss
facing down. Allow the holding plates to close
and secure the filter cassette in place.
NOTE
The Leur Taper Adapter will pivot within the adapter fitting.
This provides flexibility of movement for the tubing.
3) Attach the Tubing Assembly [2] to the installed
Leur Taper Adapter.
The cassette is now properly positioned in the cyclone
assembly and can now be connected to the air sam-
pling unit’s suction inlet.
Figure 2
Cassette Configuration
(using Leur Taper Adapter)
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PRELIMINARY
CYCLONE & CASSETTE HOLDER ASSEMBLY KIT
Sensidyne Document No. F-PRO-1247 (Rev C)
4
Maintenance
Cleaning and leak testing of the Cyclone sampler
should be done on a regular basis to maintain perfor-
mance. The cyclone should be cleaned and checked
for cracked or worn parts on a daily basis, and leak
tested on a monthly basis.
Cleaning
Unscrew the grit pot from the cyclone (see Figure 1).
Empty the grit pot by turning it upside down and tap-
ping it gently on a solid surface.
The cyclone parts should be cleaned in warm soapy
water. All parts should be left to dry before
re-assembly.
CAUTION
NEVER insert anything into the cyclone that could scratch the
inside surfaces.
Inspection
The vortex finder, cyclone body, grit pot and grit pot
O-ring (see Figure 1) should be inspected for wear,
cracks or damage. Replace any worn or damaged
parts, as they can impair the performance of the
cyclone.
Leak Testing
Leak testing can be performed in two different ways.
The first test is a simple field test that checks for major
leaks in the entire assembly.
Field Test
Attach the Cyclone sampler with filter installed to a
charged GilAir-3, GilAir-5, HFS-513 or Gilian 3500
pump (or other constant flow pump). Run the pump
at 1.7 LPM (±5%). Block the cyclone inlet with your
finger or thumb. The pump should speed up and go
into its fault mode, causing the fault indicator to light
up.
NOTE
This test can also be run using a non constant flow
pump (e.g. BDX II). This can be done by observing the
pump stall and watching the rotameter ball drop to
the bottom of the shaft. However, due to the tight flow
control required for cyclone sampling, it is recom-
mended that samples be collected using a constant
flow control pump.
Bench Test
A more thorough Bench Test checks the individual
parts of the system and can be performed using a
manometer, an aspirator bulb, and tubing.
Refer to the Occupational Safety and Health
Administration’s (OSHA) Cyclone Leak Test Procedure
for complete instructions. The procedure is also acces-
sible through OSHA’s web site at www.osha.gov.