Labconco XPert 3962622 User Manual
XPert® Filtered Balance Systems & Stations
Models
XPert Filtered Balance Systems
2'
3950200, 3950201, 3950202, 3950220, 3950221, 3950222
3'
3950300, 3950301, 3950302, 3950320, 3950321, 3950322
4'
3950400, 3950401, 3950402, 3950420, 3950421, 3950422
4'x32"IH
3950460, 3950461, 3950462, 3950470, 3950471, 3950472
4'x35.3"D
3950430, 3950431, 3950432, 3950440, 3950441, 3950442
5'
3950500, 3950501, 3950502, 3950520, 3950521, 3950522
5'x35.3"D
3950530, 3950531, 3950532, 3950540, 3950541, 3950542
6'
3950600, 3950601, 3950602, 3950620, 3950621, 3950622
6'x35.3"D
3950630, 3950631, 3950632, 3950640, 3950641, 3950642
2'
3971200, 3971201, 3971202
3'
3971300, 3971301, 3971302
4'
3971400, 3971401, 3971402
XPert Filtered Balance Stations
2'
3940200, 3940201, 3940202, 3940220, 3940221, 3940222
3'
3940300, 3940301, 3940302, 3940320, 3940321, 3940322
4'
3940400, 3940401, 3940402, 3940420, 3940421, 3940422
4'x32"IH
3940460, 3940461, 3940462, 3940470, 3940471, 3940472
4'x35.3"D
3940430, 3940431, 3940432, 3940440, 3940441, 3940442
5'
3946500, 3946501, 3946502, 3946520, 3946521, 3946522
5'x35.3"D
3946530, 3946531, 3946532, 3946540, 3946541, 3946542
6'
3946600, 3946601, 3946602, 3946620, 3946621, 3946622
6'x35.3"D
3946630, 3946631, 3946632, 3946640, 3946641, 3946642
User’s Manual
Labconco Corporation
HOME PAGE www.labconco.com
Please read the user’s manual before operating the equipment.
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Copyright © 2004, 2007, 2009, 2010, 2012, 2014, 2015 Labconco Corporation. All rights reserved.
Warranty
Labconco provides a warranty on all parts and factory workmanship. The warranty includes areas of
defective material and workmanship, provided such defect results from normal and proper use of the
equipment. Glassware is not warranted from breakage when dropped or mishandled.
The warranty for XPert® Filtered Balance Systems or XPert® Filtered Balance Stations will expire one
year from date of installation or two years from date of shipment from Labconco, whichever is sooner.
Warranty is non-transferable and only applies to the owner (organization) of record.
This limited warranty covers parts and labor, but not transportation and insurance charges. In the
event of a warranty claim, contact Labconco Corporation or the dealer who sold you the product. If
the cause is determined to be a manufacturing fault, the dealer or Labconco Corporation will repair or
replace all defective parts to restore the unit to operation. Under no circumstances shall Labconco
Corporation be liable for indirect, consequential, or special damages of any kind. This statement may
be altered by a specific published amendment. No individual has authorization to alter the provisions
of this warranty policy or its amendments. Lamps and filters are not covered by this warranty.
Damage due to corrosion or accidental breakage is not covered.
The information contained in this manual and the accompanying products are copyrighted and all rights
reserved by Labconco Corporation. Labconco Corporation reserves the right to make periodic design
changes without obligation to notify any person or entity of such change.
Returned or Damaged Goods
Do not return goods without the prior authorization from Labconco. Unauthorized returns will not be
accepted. If your shipment was damaged in transit, you must file a claim directly with the freight carrier.
Labconco Corporation and its dealers are not responsible for shipping damages.
The United States Interstate Commerce Commission rules require that claims be filed with the delivery
carrier within fifteen (15) days of delivery.
Limitation of Liability
The disposal and/or emission of substances used in connection with this equipment may be governed by
various federal, state, or local regulations. All users of this equipment are required to become familiar with
any regulations that apply in the user’s area concerning the dumping of waste materials in or upon water,
land, or air and to comply with such regulations. Labconco Corporation is held harmless with respect to
user’s compliance with such regulations.
Contacting Labconco Corporation
If you have questions that are not addressed in this manual, or if you need technical assistance, contact
Labconco’s Customer Service Department or Labconco’s Product Service Department at 1-800-821-5525
or 1-816-333-8811, between the hours of 7:00 a.m. and 6:00 p.m., Central Standard Time.
Part #3905501, Rev. K
ECO J457
ORIGINAL INSTRUCTIONS
TABLE OF CONTENTS
CHAPTER 1: INTRODUCTION 1
Typographical Conventions 2
CHAPTER 2: PREREQUISITES 3
Support, Vibration & Movement Requirements 3
Temperature Variation Requirements 4
Humidity and Static Electricity Requirements 4
Background on Electrostatics or Static Electricity 5
Location and Air Current Requirements 5
Exhaust and Blower Requirements 6
Electrical Requirements 7
Space Requirements 7
CHAPTER 3: GETTING STARTED 8
Unpacking the Enclosure 9
Installing the Filtered Enclosure on a Supporting Structure &Work Surface 9
Work Surface Specifications 9
Work Surface and HEPA Filtered Enclosure Installation 10
Connecting to the Exhaust System 12
Installation of HEPA Filters & Accessory Odor Control Carbon Filters 15
Connecting the Electrical Supply Source to the Filtered Enclsoure 16
Set the Face Velocity with the Speed Control Adjustment 18
Validating the Vented Enclosure 18
Sealing the Vented Enclosure to the Work Surface 19
CHAPTER 4: HIGH PERFORMANCE FEATURES AND
SAFETY PRECAUTIONS 20
High Performance Features 20
Safety Precautions 26
CHAPTER 5: USING YOUR FILTERED ENCLOSURE 29
Routine Daily Work Procedures 29
Suitable Applications 30
Appropriate Chemicals for Odor Control Carbon Filters 32
Hazardous Misapplications for Odor Control Carbon Filters with
Volatile Chemicals 32
Chemical Carcinogen Use with Odor Control Carbon Filters 33
Prohibited Acid Use 33
CHAPTER 6: MAINTAINING YOUR FILTERED ENCLOSURE 34
Routine Maintenance Schedule 35
Decontamination 36
Determination of When to Replace HEPA Filters 36
How to Install New HEPA Filter with Bag-In/Bag-Out Procedure 36
HEPA Filter Leak Test 38
Setting the Inflow Face Velocity with Speed Control Adjustment 39
Calibrate and Operate the Airflow Monitors 40
Guardian Digital 1000 Airflow Monitor 42
Programming the Guardian 1000 Digital Alarm 43
Determination of When & How to Replace Odor Control Carbon Filters 47
Calculating Odor Control Carbon Filter Life 48
Initial Certification 50
Re-Certification 50
Fluorescent Light Replacement 50
Motorized Impeller Replacement 51
Speed Control Replacement 52
Trace Odor Carbon Filter Installation 53
CHAPTER 7: ACCESSORIZING YOUR FILTERED
ENCLOSURE 54
CHAPTER 8: TROUBLESHOOTING 60
APPENDIX A: REPLACEMENT PARTS 63
APPENDIX B: DIMENSIONS 68
APPENDIX C: SPECIFICATIONS 75
APPENDIX D: QUICK CHART 76
APPENDIX E: BALANCE STABILITY 77
1
Chapter 1:
Introduction
Congratulations on your purchase of a Labconco XPert® Filtered Balance System
or XPert® Filtered Balance Station. Your enclosure provides personnel protection
through superior containment while conserving energy at OSHA approved
velocities as low as 60 feet per minute. It is the result of Labconco’s more than 50
years of experience in manufacturing fume hoods and more than 30 years of
experience in manufacturing filtered enclosures.
These enclosures will effectively contain toxic or noxious particulates when
properly installed and operated. Each enclosure uses a single HEPA filter, which
is rated at least 99.99% efficient for 0.3-micron particles. Additionally, an
accessory Odor Control carbon filter may be added to adsorb nuisance odors from
organic vapors, formaldehyde or ammonia and amines. The XPert filtered
enclosures offer many unique features to enhance safety, performance, and energy
savings. To take full advantage of them, please acquaint yourself with this manual
and keep it handy for future reference. If you are unfamiliar with how high
performance HEPA filtered enclosures operate, please review Chapter 4: High
Performance Features and Safety Precautions before you begin working in the
enclosure. Even if you are an experienced user, please review Chapter 5: Using
Your HEPA Filtered Enclosure, which describes the XPert features so that you can
use the filtered enclosure efficiently. For weighing hazardous and nuisance
powders, Labconco recommends the purchase of the XPert Filtered Balance
System or XPert Filtered Balance Station. Both XPert filtered enclosures include a
true bag-in/bag-out HEPA filter to properly protect personnel during filter
changing operations. See chart below and contact Labconco for additional
ordering information.
Product Service 1-800-522-7658
Chapter 1: Introduction
2
No.
Application
Product
Filters
Bag-in/Bag-out HEPA
UV
Light
1.
Weighing
Hazardous & Nuisance
Powders & Particulates
XPert Filtered Balance
System, XPert Filtered
Balance Station
HEPA
Required, included with XPert
No
2.
Weighing
Hazardous and Nuisance
Powders, Particulates &
Volatile Chemicals
XPert Filtered Balance
System, XPert Filtered
Balance Station
HEPA and
Carbon*
Required, included with XPert
No
!
!
!
*It is recommended that a Labconco product specialist review the chemical application to
determine if it is suitable.
If the unit is not operated as specified in this manual it may
impair the protection provided by the unit.
Si l'unité n'est pas utilisée comme spécifié dans ce manuel il
peut diminuer la protection fournie par l'unité.
Typographical Conventions
Recognizing the following typographical conventions will help you understand and
use this manual:
Steps required to perform a task are presented in a numbered format.
Comments located in the margins provide suggestions, reminders, and
references.
Critical information is presented in boldface type in paragraphs that are
preceded by the exclamation icon. Failure to comply with the information
following an exclamation icon may result in injury to the user or permanent
damage to the enclosure.
Critical information is presented in boldface type in paragraphs that are
preceded by the wrench icon. A trained certifier or contractor should only
perform these operations. Failure to comply with the information following a
wrench icon may result in injury to the user or permanent damage to your
hood.
Important information is presented in capitalized type in paragraphs that are
preceded by the pointer icon. It is imperative that the information contained in
these paragraphs be thoroughly read and understood by the user.
CAUTION – See Manual. When this symbol is on the unit it indicates a
caution that is detailed in this manual.
ATTENTION - Voir manuel. Lorsque ce symbole est sur l'unité, il indique une
mise en garde qui est indiqué dans ce manuel.
Product Service 1-800-522-7658
3
Chapter 2:
Prerequisites
Before you install the filtered enclosure, you need to prepare your site for
installation. You must be certain that the area is level and of solid construction. In
addition, a dedicated source of electrical power should be located near the
installation site to power the filtered enclosure, balance and other apparatus.
Additionally, the enclosure should be strategically placed in the lab to provide
efficient workflow.
Carefully read this chapter to learn the requirements for your installation site:
The support, vibration and movement requirements.
The temperature variation requirements.
The humidity and static electricity requirements.
The location and air current requirements.
The exhaust and blower requirements.
The electrical power requirements.
The space requirements.
Refer to Appendix B: Dimensions for complete enclosure dimensions.
Refer to Appendix C: Specifications for complete filtered enclosure electrical and
environmental conditions, specifications and requirements.
Support, Vibration and Movement Requirements
At a minimum, the supporting structure usually consists of a base cabinet and work
surface.
The ability for analytical balances to accommodate vibration varies with type and
brand. More advanced balances have improved tolerance, however in the
preparation of a balance enclosure site, please consider the following:
Avoid tubular stands or mobile benches that have the potential of moving
when touched.
Work surfaces should be of a thick rigid material that remains stable when
buttons are pressed.
Product Service 1-800-522-7658
Chapter 2: Prerequisites
4
A bench that is rigidly mounted to the floor or fixed to the wall, but not both,
may be appropriate.
The corners of a building typically have less vibration than the center.
The bench with the balance enclosure should not contain any vibration-
producing equipment, such as shakers or pumps.
Marble, granite or epoxy balance tables are generally recommended by the
manufacturers of analytical and microbalances. (See the installation
instructions in Chapter 3).
Marble slabs with dampening pads placed within the enclosure are also an
effective low cost means of controlling vibration.
The balance should be calibrated and verified at least annually; for best
results, the balance should be calibrated inside the enclosure while running at
the desired face velocity.
Temperature Variation Requirements
The extent the balance readings are influenced by temperature variations is a
function of the balance design. Most manufacturers would suggest that a
temperature drift of 1-2°C is generally tolerable. Only validation through your
Operational Qualification protocol can define what is acceptable. To minimize the
potential for temperature variations:
Never install balances near heating sources such as radiators and hot plates.
Do not place the balance and enclosure on a bench that would receive direct
sunlight.
Humidity and Static Electricity Requirements
Electrostatics can be troublesome in a balance enclosure. It is important to
understand and, to the extent possible, control static charges. An electrostatic
charged vessel, sample or enclosure can apply forces and lead to errors in
weighing. The repulsion or attraction can be detected with micro, semi micro and
analytical balances. Static charges can also lead to particulates being attracted to
surfaces within the balance enclosure. Containment of harmful powders,
prevention of cross-contamination and clean-up is enhanced when static attraction
of powders is minimized. The construction of the XPert Filtered Balance System
and XPert Filtered Balance Station avoid the use of plastics, which are highly
insulative. The advantages to the glass and epoxy-coated metal construction are
twofold:
1. The enclosure does not contribute high electrostatic forces affecting the
precision of the balance.
2. The attraction and ultimate accumulation of powders, (hazardous or
nuisance), are minimized on the inside of the enclosure.
Product Service 1-800-522-7658
Chapter 2: Prerequisites
5
Material
Surface Resistivity
Example
Conductive
0 105 per square
Skin, Metals
Static dissipative
105 109 per square
Glass
Antistatic
109 1012 per square
Polyethylene bag
Insulative
1012 per square
Acrylic, Packing foam, Styrofoam
To correct or ensure against electrostatic issues, the following additional measures
may be prescribed to improve weighing operations.
Maintain a humidity level between 45 and 60%. The ability to sustain this
humidity range can be challenging depending upon the regional climate and
HVAC system.
Ionizers in various forms (guns, bars and blowers) are effective ways to flood
an area with ions and essentially “neutralize” electrostatic electricity.
Background on Electrostatics or Static Electricity
Electrostatic charges on a surface such as the wall of a balance enclosure are not
created by moving air. Gases do not cause the charge. Impurities within the air
impinging upon surfaces dictate the polarity and magnitude of the charge. The
process, triboelectrification, occurs when the dust particles contact the surface,
creating friction and electrons move across the interface.
The ability of a material to become polarized is a property known as permittivity.
On highly insulative materials like acrylic, ions or charged molecules are strongly
bound to the surface by polarization forces. The higher the force, the higher is the
permittivity value of the material. It is suggested by balance manufacturers that
the use of high permittivity materials, such as plastic be avoided.
Since static electricity is a surface phenomenon, materials can also be classified by
their surface resistivity measured in ohms per square. The table below lists the
surface resistivity of various classes of material.
Surface Resistivity Table
Location and Air Current Requirements
The XPert Filtered Enclosures have been designed to contain hazards by negating
typical cross drafts and turbulence within the opening. Air movement does not
affect most modern balances with draft shields. However, as a precautionary
safety measure and a higher level of quality management, it is recommended that
the enclosure be placed in an area to avoid:
High traffic areas where walking might cause an air disturbance or be a
nuisance to balance readings.
Overhead or wall HVAC diffusers, fans, radiators or other lab equipment
Next to doorways or windows that may be opened.
Product Service 1-800-522-7658
producing air currents.
Chapter 2: Prerequisites
6
Enclosure
Width and
Sash
Opening
Model Description
Face Velocity
(fpm)
Exhaust
Volume
(CFM)
XPert Station
Initial Static
Pressure Loss
with HEPA
filter (in w.g.)
XPert
System
Noise
Pressure db
(A)
Xpert System
Max.
Equivalent
Resistance (Ft)
Xpert System
Max. External
Static Pressure
2'
9.4" Sash
2’ Xpert Filtered Balance System
2’ Xpert Filtered Balance Station
(6" Duct)
60
80
100
85
115
145
.35"- .41"
.48" - .57"
.62" - .72"
48-53
50-56
53-58
400
200
80
.20"
.18"
.13"
3'
9.4" Sash
3’ Xpert Filtered Balance System
3’ Xpert Filtered Balance Station
(6" Duct)
60
80
100
130
175
220
.37" - .43"
.53" - .62"
.68" - .79"
48-53
53-57
58-61
130
50
25
.15"
.11"
.08"
4'
9.4" Sash
4' XPert Filtered Balance System
4' XPert Filtered Balance Station
(6" Duct)
60
80
100
175
235
295
.40" - .46"
.57" - .66"
.76" - .87".
49-54
58-61
62-66
100
50
25
.20"
.18"
.13"
4'
12" Sash
4' XPert Filtered Balance System
4' XPert Filtered Balance Station
(6" Duct, Tall or Deep Models)
60
80
100
230
305
380
.56" - .65"
.77" - .87"
.92" - 1.04".
58-61
62-66
67-70
50
25
5
.18"
.13"
.05"
5'
12" Sash
5' XPert Filtered Balance System
5' XPert Filtered Balance Station
(10" Duct)
60
80
100
290
385
480
.38" - .46"
.55" - .67"
.72" - .85"
52-56
58-63
63-67
450
230
120
.22"
.20"
.15"
6'
12" Sash
6' XPert Filtered Balance System
6' XPert Filtered Balance Station
(10" Duct)
60
80
100
350
465
580
.46" - .56"
.67" - .81"
.87" – 1.03"
55-57
61-63
67-69
300
150
70
.20"
.18"
.13"
!
Do not position the unit so that it is difficult to operate the main
disconnect device.
Ne placez pas l'appareil de sorte qu'il est difficile de faire
fonctionner le dispositif principal de déconnexion.
Exhaust and Blower Requirements
The XPert Filtered Balance System uses an integral motorized impeller to draw
room air past the operator and through the enclosure. This contaminated air is then
pushed through the HEPA filter. The HEPA-filtered exhaust air is then forced out
the top of the enclosure. An optional carbon filter may be installed on the
downstream side of the HEPA filter to protect against nuisance odors.
The HEPA-filtered exhaust air can be recirculated into the laboratory or exhausted
outside with the addition of the Canopy Exhaust Connection and remote blower
listed in Chapter 7. Electrical connections are covered in Chapter 2 for this
configuration.
The XPert Filtered Balance Station does not include the motorized impeller and
must be exhausted to the outside by a remote blower. The XPert Filtered Balance
Station remote blower may be switched from the blower switch on the enclosure.
See Electrical Requirements in Chapter 2, and Electrical Supply Connections in
Chapter 3. Only one 6" exhaust connection is required for the 2', 3', or 4' XPert
Filtered Balance Stations to exhaust to the outside. Only one 10" exhaust
connection is required for the 5' and 6' XPert Filtered Balance Stations.
Data for the exhaust volume, noise pressure and enclosure static pressure loss are
listed for each filtered enclosure model at face velocities of 60, 80, and 100 fpm.
Balances typically work best between 60-90 fpm with the balance shield closed
tightly.
Product Service 1-800-522-7658
Chapter 2: Prerequisites
7
!
Proper blower selection can be determined from these exhaust requirements and the total
system static pressure loss. For outside exhaust, the enclosure must be connected to either a
dedicated blower or a house exhaust system. Labconco offers accessory remote blowers
listed in Chapter 7. Contact Labconco for blower sizing assistance.
If the enclosure is connected directly to a house exhaust system, an
adjustable damper (or valve) must be installed to control the airflow
properly. This is equally important when a house exhaust system is
controlling multiple filtered enclosures. See Chapter 7 for accessory
adjustable damper ordering information.
Electrical Requirements
Standard duplex electrical receptacles should be nearby for connecting the filtered
enclosure, or other equipment, such as a balance for weighing operations. The
enclosures include iris pass-thru to allow electrical cords through the back of the
enclosure without leaving a large hole for contaminants to escape.
XPert System
There is no provision for controlling a remote blower for exhausting air from the
XPert Systems. One way to do this, however, is to have a certified electrician connect
a wall mounted switch receptacle nearby so that the switch controls both the remote
blower and the receptacle. The power cord for the XPert System is then plugged into
this receptacle.
XPert Station
The remote blower for the XPert Filtered Balance Station may be connected to the
blower switch on the enclosure. The blower switch is connected to a relay whose
wires are terminated in the junction box behind the front panel. We recommend a
maximum amperage of 6 for this circuit to the remote blower. Connect the blower
wires inside the junction box to the remote blower per local electrical codes.
Space Requirements
The dimensions for the different models are shown in Appendix B: Dimensions.
Product Service 1-800-522-7658
8
!
Chapter 3:
Getting Started
Now that the site for your filtered enclosure is properly prepared, you are ready to
unpack, inspect, install, and validate your system. Read this chapter to learn how
to:
Unpack and move the enclosure.
Set up the enclosure with the proper supporting structure and work surface.
Connect to an exhaust system if applicable.
Installation of HEPA and accessory Odor Control carbon filters.
Connect the electrical supply.
Set the face velocity with the speed control adjustment.
Arrange validation for the enclosure.
Seal the enclosure to the work surface.
Depending upon which model you are installing, you may need common
mechanical and electrical installation tools in addition to 5/16", 3/8", 7/16", and
1/2" wrenches, ratchets, sockets, a nut driver set, a flat-blade screwdriver, a
Phillips screwdriver, and a carpenter level to complete the instructions in the
chapter.
Each enclosure model weighs between 125 to 350 lbs. each (55 to
152 kg). The shipping container allows for lifting with a
mechanical lift truck or floor jack. If you must lift the enclosure
manually, follow safe-lifting guidelines. Do not lift by the
front air foil.
Product Service 1-800-522-7658
Chapter 3: Getting Started
9
!
The United
States
Interstate
Commerce
Commission
rules require
that claims be
filed with the
delivery
carrier within
fifteen (15)
days of
delivery.
Unpacking the Enclosure
Carefully remove the shrink-wrap or carton on the enclosure and inspect it for
damage that may have occurred in transit. If damaged, notify the delivery carrier
immediately and retain the entire shipment intact for inspection by the carrier.
DO NOT RETURN GOODS WITHOUT THE PRIOR
AUTHORIZATION OF LABCONCO. UNAUTHORIZED
RETURNS WILL NOT BE ACCEPTED.
IF ENCLOSURE WAS DAMAGED IN TRANSIT, YOU MUST
FILE A CLAIM DIRECTLY WITH THE FREIGHT CARRIER.
LABCONCO CORPORATION AND ITS DEALERS ARE NOT
RESPONSIBLE FOR SHIPPING DAMAGES.
Do not discard the packing material until you have checked all of the components
and tested the enclosure. We recommend that you do not remove the enclosure
from its shipping container until it is ready to be placed into its final location.
Move the unit by placing a flat, low dolly under the shipping skid, or by using a
floor jack.
Do not move the enclosure by tilting it onto a hand truck.
Installing the Filtered Enclosure on a Supporting
Structure and Work Surface
Use caution when lifting or moving the enclosure. When installing the enclosure
onto a chemical-resistant work surface or benchtop, ensure that the structure can
safely support the combined weight of the enclosure and any related equipment.
The work surface should be at least as wide as the enclosure to properly support it.
The front of the enclosure should be aligned within 0.3" of the front of the work
surface. Mounting holes are provided in the Labconco accessory work surfaces to
secure the enclosure. RTV Silicone sealant must be applied for additional support.
Work Surface Specifications
The work surface should be smooth, rigid, and durable. The surface should be
non-porous and resistant to the powders, solvents and chemicals used in
conjunction with the XPert Filtered Enclosure.
Product Service 1-800-522-7658
Chapter 3: Getting Started
10
Work Surface and HEPA Filtered Enclosure Installation
1. Level the base cabinets and the work surface. Work surface should be
placed flush with the front of the base cabinet as shown in Figure 3-1.
2. Position the work surface in its intended location and with the front of the
work surface towards you. (Rear mounting holes are located close to the
rear edge.)
3. Secure the work surface to the base cabinet with a structural adhesive or
silicone sealant.
4. Insert the supplied mounting screws in the four holes. Allow a minimum
of 1/8" clearance under the head of the screw for positioning the enclosure.
For the 5' and 6' stainless work surfaces, use a #10-24 x 3/8" hex washer
head screw (Labconco part number 1885806).
5. Place the enclosure on the work surface and slide the rear flange and front
air foil flanges under the mounting screw heads.
6. Tighten the four screws to complete the installation.
7. Apply RTV silicone sealant to the work surface and enclosure for
additional support.
Product Service 1-800-522-7658
11
Filtered Enclosure Installation
Chapter 3: Getting Started
Figure 3-1
Product Service 1-800-522-7658
Chapter 3: Getting Started
12
!
!
Connecting to the Exhaust System (Optional on
XPert Filtered Balance System)
ATTENTION: The weight of the exhaust ductwork system must
be supported independently of the enclosure superstructure or
damage may occur.
The exhaust system should be installed by a qualified HVAC
contractor.
The exhaust connection on the 2', 3' and 4' XPert Filtered Balance Stations have
been designed to accept 6" diameter ductwork as shown in Figure 3-2. The 5' and
6' XPert Filtered Balance Stations have been designed for 10" diameter ductwork.
For the 2', 3' and 4' sizes, the exhaust connection ships uninstalled on the top and
needs to be fastened with the screws provided. See Chapter 7 for ordering Canopy
Exhaust Connection for the XPert Filtered Balance System. Both 6" for house
exhaust and 5" for connection to a FilterMate Portable Exhauster are available.
Canopy Exhaust Connection aids in the removal of chemicals or applications
where a higher degree of powder and particulate removal is required. Review
Chapter 2 for exhaust prerequisites and review Chapter 7 for ordering blower
exhaust equipment. See Figure 3-2 for the XPert Station and Figure 3-3 for
Canopy Exhaust Connection options for the XPert Filtered Balance System.
Consult Labconco Customer Service should you require help sizing your blower
for the exhaust volume and system static pressure loss.
To ensure compatibility, the selected exhaust duct material
should match the enclosure, procedures and chemical
applications.
Product Service 1-800-522-7658
13
Figure 3-2
XPert Filtered Balance Station only
Model Series 3940200, 3940300, 3940400, 3946500 and 3946600
2', 3' and 4' - 6.06" ID Exhaust 5' and 6' – 10.09" ID Exhaust
Chapter 3: Getting Started
Product Service 1-800-522-7658
Chapter 3: Getting Started
14
Figure 3-3
Optional Canopy Exhaust Connection shown installed on XPert
Filtered Balance System for outside exhaust Part #3924400 (2'),
3924401 (3'), 3924402 (4'), 39294403 (5'), and 3924404 (6')
FOR 6" NOMINAL EXHAUST DUCT
CONNECTION 6.09" ID, 6.19" OD ON 2', 3' AND 4'
10" NOMINAL ON 5' AND 6'
10.09" ID, 10.19" OD
FOR 6" NOMINAL EXHAUST DUCT
CONNECTION 6.09" ID, 6.19" OD ON 2', 3' AND 4'
10" NOMINAL ON 5' AND 6'
10.09" ID, 10.19" OD
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Chapter 3: Getting Started
15
Installation of HEPA Filters and Accessory Odor
Control Carbon Filters
HEPA Filters
HEPA filters are shipped installed with the gasket on the downstream side. The
HEPA filters are leak checked at Labconco. A second leak check is recommended
before using the enclosure and at least annually thereafter. Consult your Safety
Officer and Chapter 6 for the HEPA Filter Leak Test and HEPA Filter Bag-In/BagOut Procedure. See Figure 4-2 for HEPA filter location, HEPA filter gasket, filter
clamp bolts, and bag-in/bag-out flange. The XPert enclosures have a true bagin/bag-out HEPA filter to safely dispose of the filter. All seams upstream of the
HEPA filter are jacketed by negative pressure. This intrinsically safe design
ensures containment.
Carbon Filters (Accessory for Odor Control only)
For carbon filter installation, first remove the upper perforated cover, secured by
Phillips head screws, on the top of the enclosure. See Figures 4-1 and 4-2 for
location of the upper perforated cover. See Chapter 7 for a list of available carbon
filters. All carbon filters are simply gravity installed with the gasket side down
and down stream on the exhaust side of the HEPA filter. Install the correct carbon
filter for the application.
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Chapter 3: Getting Started
16
Filter Type
Appropriate Use
HEPA
HEPA
2' 3707900
3' 3707901
4' 3707902
5' 3707903 (2 ea)
6' 3707901 (2 ea)
HEPA filters are high-efficiency particulate air filters
having a particulate removable efficiency of 99.99% for
particles with a diameter of 0.3 micron.
Carbon
Organic Vapor
Activated Carbon
2' 3937200
3' 3937300
4' 3937400
5' 3981400 (2 ea)
6' 3937300 (2 ea)
Adsorbs organic compounds designated by NIOSH
guidelines as acceptable for use with chemical cartridge-
type respirators. Concentrations in the enclosure’s work
area must not exceed the IDLH for the chemical and the
exhaust from the enclosure must not exceed the TWA.
Carbon
Formaldehyde
(Formalin)
2' 3937201
3' 3937301
4' 3937401
5' 3981401 (2 ea)
6' 3937301 (2 ea)
Formaldehyde requires the use of an impregnated carbon
for the treatment of formaldehyde. Concentrations in the
enclosure’s work area must not exceed the IDLH for the
chemical and the exhaust from the enclosure must not
exceed the TWA.
Carbon
Ammonia and
Amines
2' 3937202
3' 3937302
4' 3937402
5' 3981402 (2 ea)
6' 3937302 (2 ea)
Treats ammonia, low molecular weight amines and other
bases designated by NIOSH as acceptable for use with
ammonia cartridge type respirators. Requires the use of
an impregnated carbon. Concentrations in the
enclosure’s work area must not exceed the IDLH for the
chemical and the exhaust from the enclosure must not
exceed the TWA.
!
Important: Carbon filters do not provide any particulate
protection, but provide odor control.
Connecting the Electrical Supply Source to the
Filtered Enclosure
115V Models
Simply connect the 115V power cord supplied to the IEC electrical supply plug on
the back of the enclosure. If using at 50 Hz operations, blower performance
maximum airflow will be reduced by 17%.
For the remote blower used for XPert Stations, follow the wiring diagram on the
enclosure and wire the blower wires in the electrical junction box located behind the
front panel. These wires are switched by the electrical relay via the blower switch.
The maximum circuit load for the electrical relay is 6 amps. Only the remote blower
wiring is connected inside the electrical junction box. The lights and airflow monitor
are powered from a standard duplex electrical receptacle located nearby for connecting
the power cord. All wiring for the XPert Filtered Balance Station should be performed
by a licensed electrician and conform to local codes. In most cases, the XPert Filtered
Balance Station will require the use of shielded conduit to protect the wiring.
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Chapter 3: Getting Started
17
2', 3', & 4' XPERT FILTRED
BALANCE STATION 6.06" ID
EXHAUST OUTLET TO REMOTE
BLOWER, 10.09” ID FOR 5' AND 6'
ROUTE CONDUIT THROUGH HOLE
PROVIDED IN FRONT PANEL
See Figure 3-4. The grounding connection shall not be made to the terminal box
cover. The building electrical supply system for the remote blower should include
overload protection such as a switch or circuit breaker in close proximity and
within easy reach of the operator. The switch or circuit breaker shall be marked as
the disconnecting device. Consult NEC-2002 for proper installation.
Figure 3-4
XPert Filtered Balance Station Conduit Location for Wiring External
Remote Blower.
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Chapter 3: Getting Started
18
!
230V Models
The same procedure applies for the 230V except it is shipped without a plug.
Install the appropriate plug for your electrical specifications per local codes.
Do not use any detachable power cord that is not adequately rated
for the unit.
Ne pas utliser un fil électrique amovible qui n’est pas du tension
nominale de l’appareil.
Set the Face Velocity with the Speed Control
Adjustment
XPert Filtered Balance System Only
For XPert Filtered Balance Systems, adjustment of the speed control gives the
correct face velocity and is located behind the front panel. The face velocity
should be adjusted from 60 to 100 fpm for weighing operations. (Consult your
Safety Officer for airflow recommendations for your application). Containment is
maximized at a setting within this range. Working at the lowest face velocity
appropriate for the application will give the quietest operation. Face velocity
measurements are made using an anemometer. An electric anemometer can be
obtained from your laboratory supply dealer. Face velocity measurements should
be taken in accordance with the Industrial Ventilation Manual. Using a small
Phillips screwdriver, adjust the speed control to give the required face velocity.
See Figures 6-1 and 6-2 in Chapter 6 to locate the speed control. The face velocity
is increased by turning the speed control counter clockwise and clockwise to
decrease face velocity.
Validating the Vented Enclosure
To determine the actual face velocity at the sash opening, airflow velocity readings
are taken. This should be done across the sash opening of the enclosure in
accordance with the Industrial Ventilation Manual. (See Appendix E) The
“average face velocity” is achieved by taking readings in two rows across the
enclosure with the readings 6" from the ends and evenly spaced every 12"; the first
row is 3" down from the upper sash foil and the second row is 3" up from the work
surface. Refer to Chapter 2 for proper airflow volumes for your particular model.
The XPert enclosures have been tested at Labconco’s airflow test facility per
ASHRAE 110-1995. All enclosures achieve an “as manufactured rating” of less than
0.05 part per million (ppm) at 4 liters per minute (lpm); AM <0.05 (Consult
Labconco for individual ratings). For “field use” ASHRAE testing contact Labconco
for a certified on-site contractor. For particulate powder validation, Labconco had
containment testing performed to validate the enclosures for sodium naproxen
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Chapter 3: Getting Started
19
!
powders. The XPert HEPA filtered enclosures demonstrated excellent containment
when used by an operator using excellent technique and good containment when used
by an operator using marginal technique. While no enclosure can compensate for
improper technique, these tests confirm that the XPert HEPA Filtered Enclosures
provide a safe working environment. For particulate powder and gas containment,
Labconco performed extensive testing to validate the enclosures. For balance
stability, Labconco conducted tests with a built-in blower and without a marble
surface; test results were excellent at 78 fpm and 100 fpm, confirming no detectable
instability with the five decimal place balance. For copies of these validation reports,
contact Labconco Customer Service.
The XPert enclosures were also subjected to Biological Containment testing, using
a modified Personnel Protection Test, as described in NSF/ANSI Standard Number
49. An aerosol challenge of approximately 5 x 108 spores of Bacillus subtilus var
Niger were released in the enclosure and appropriate air sampling equipment
established the number of spores that escaped through the sash opening. Each size
enclosure was tested three times. All sizes of the enclosure were tested at 75 FPM
inflow and typically 1 or less than one spore escaped from the enclosure during
each of the tests.
NOTE: Face velocity profiles and smoke testing should be
performed frequently per your organization’s quality system to
ensure safe performance.
Sealing the Filtered Enclosure to the Work Surface
When the filtered enclosure has been set in place, ducted, (if necessary), and wired,
it must be sealed at the work surface to prevent spilled materials from collecting
under the walls. A bead of silicone sealant is recommended to seal the filtered
enclosure to the work surface. This seal also provides additional rigidity.
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20
1
Chapter 4:
High Performance Features and
Safety Precautions
High Performance Features
The patented1 XPert Filtered Balance System and XPert Filtered Balance Station
are designed to meet the needs of the laboratory scientist, and provide superior
containment while conserving energy at OSHA approved “low flow” velocities as
low as 60 feet per minute. The filtered enclosures have been tested to effectively
contain toxic and noxious materials when properly installed and operated. What
makes the filtered enclosures so unique is the revolutionary way they direct air into
and through the contaminated air chamber. Labconco engineered the filtered
enclosures to minimize the effects of turbulence. The containment-enhancing and
aerodynamic designs of the upper sash foil, side air foils, lower air foil, upper
dilution air supply, and rear perforated baffle all work in concert to produce
horizontal airflow patterns that significantly reduce powder, chemical and
particulate concentrations through the work area.
These concentrations of materials are predominantly removed on the “first pass” of
airflow through the chamber resulting in high performance containment. The
plenum and the HEPA filter are jacketed by negative pressure. Should a leak
occur in the filter gasket or the plenum, the contaminated air is recaptured and
refiltered.
The XPert Filtered Balance System and XPert Filtered Balance Station include a
true bag-in/bag-out HEPA filter disposal system to protect the worker from contact
with hazardous powders and particulates. Users of both products are encouraged
to routinely check airflow with the use of the airflow monitor.
U.S. Patent No. 6,461,233 and US. Patent No. D538,941
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Chapter 4: Performance Features and Safety Precautions
21
17
26
16
10
15
3 8 18
2 1 5
6
4
19
Not Shown 7, 9, 10, 11, 12, 13, 20, 21, 22, 23, 24, 25, 28
(See Figure 4-2)
Figure 4-1
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