Fume Adsorbers
Models
115V 230V
3955200 Organic 30" 3955220 Organic 30"
3955400 Organic 60" 3955420 Organic 60"
3955201 Formaldehyde 30" 3955221 Formaldehyde 30"
3955401 Formaldehyde 60" 3955421 Formaldehyde 60"
3955202 Ammonia 30" 3955222 Ammonia 30"
3955402 Ammonia 60" 3955422 Ammonia 60"
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Labconco Corporation
HOME PAGE www.labconco.com
Please read the User’s Manual before operating the equipment.
User’s Manual
8811 Prospect Avenue
Kansas City, MO 64132-2696
800-821-5525, 816-333-8811
FAX 816-363-0130
E-MAIL labconco@labconco.com
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 a Labconco Fume Adsorber will expire one year from date of installation or two
years from date of shipment from Labconco, whichever is sooner.
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.
Copyright © 2005, 2007, 2014 Labconco Corporation. All rights reserved.
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 #6960400, Rev. E
ECO J105
ORIGINAL INSTRUCTIONS
TABLE OF CONTENTS
CHAPTER 1: INTRODUCTION 1
About This Manual 2
Typographical Conventions 3
CHAPTER 2: PREREQUISITES 5
Support Requirements 5
Location and Air Current Requirements 6
Electrical Requirements 6
Space Requirements 6
CHAPTER 3: GETTING STARTED 7
Unpacking Your Enclosure 7
Installing the Enclosure on a Supporting Structure 8
Installation of Carbon Filters 8
Connect the Electrical Supply Source to the Enclosure 9
Validating the Fume Adsorber Face Velocity 9
CHAPTER 4: PERFORMANCE FEATURES AND SAFETY
PRECAUTIONS 10
Performance Features 10
Safety Precautions 11
CHAPTER 5: APPROPRIATE APPLICATIONS FOR YOUR
ENCLOSURE 14
Routine Daily Work Procedures 14
Suitable Applications 15
Appropriate Chemicals for Carbon Filters 15
Definition of Terms 16
Hazardous Misapplications for Carbon Filters with
Volatile Chemicals 17
Chemical Carcinogen Use with Carbon Filters 17
Prohibited Acid Use 17
CHAPTER 6: MAINTAINING YOUR ENCLOSURE 18
Routine Maintenance Schedule 18
Determination of When to Replace Carbon Filters and
How to Replace 19
Calculating Carbon Filter Life 21
CHAPTER 7: TROUBLESHOOTING 23
APPENDIX A: ENCLOSURE COMPONENTS
AND REPLACEMENT PARTS 25
APPENDIX B: DIMENSIONS 28
APPENDIX C: FUME ADSORBER SPECIFICATIONS 29
APPENDIX D: QUICK CHART FOR THE FUME ADSORBER 30
APPENDIX E: REFERENCES 31
DECLARATION OF CONFORMITY 33
1
CHAPTER 1
INTRODUCTION
Congratulations on your purchase of a Labconco Fume Adsorber. Your enclosure
uses carbon filtration to provide personnel protection of annoying solvents,
formaldehyde or ammonia vapors generated by histology and pathology
operations.
When properly installed and operated, these enclosures will effectively contain low
concentrations of noxious fumes and chemicals. Each enclosure uses carbon
filtration and is only intended for chemical use with a time weighted exposure limit
(TWA) of 100 ppm or greater (Reference the NIOSH Pocket Guide,
www.cdc.gov/niosh/npg/npg.html). The carbon filters are available with three
different carbons for adsorbing organic vapors, formaldehyde or ammonia and
amines.
Please acquaint yourself with this manual and keep it handy for future reference to
review all the Fume Adsorber’s features. If you are unfamiliar with how Fume
Adsorbers operate, please review Chapter 4: 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 Fume Adsorber, which
describes the features so that you can use the enclosure efficiently.
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Chapter 1: Introduction
2
Width
Fume Adsorber
Model No’s.
Filter
Blower
Application
Exhaust
30"
3955200 (115V)
3955220 (230V)
Carbon Filter*
Organic Vapor
Built-In Integral
Motorized Impeller
When ducting to the outside is
not feasible, the filters keep
low level concentrations below
OSHA recommended time
weighted averages, restoring
clean air to the laboratory.
To the room
60"
3955400 (115V)
3955420 (230V)
Width
Fume Adsorber
Model No’s.
Filter
Blower
Application
Exhaust
30"
3955201 (115V)
3955221 (230V)
Carbon Filter*,
Formaldehyde
Built-In Integral
Motorized Impeller
When ducting to the outside is
not feasible, the filters keep
low level concentrations below
OSHA recommended time
weighted averages, restoring
clean air to the laboratory.
To the room
60"
3955401 (115V)
3955421 (230V)
Width
Fume Adsorber
Model No’s.
Filter
Blower
Application
Exhaust
30"
3955202 (115V)
3955222 (230V)
Carbon Filter*,
Ammonia
Built-In Integral
Motorized Impeller
When ducting to the outside is
not feasible, the filters keep low
level concentrations below
OSHA recommended time
weighted averages, restoring
clean air to the laboratory.
To the room
60"
3955402 (115V)
3955422 (230V)
!
!
Note: Formaldehyde filters can adsorb up to 30% organic vapors.
Note: Ammonia filters can adsorb up to 30% organic vapors.
* It is recommended that a Labconco product specialist review the chemical
application to determine if it is suitable. Consult Chapter 5 and Chapter 6.
Acids must not be used in Fume Adsorbers.
About This Manual
This manual is designed to help you learn how to install, use, and maintain your
enclosure. Instructions for installing accessory carbon filters on your filtered
enclosure are also included. Your Fume Adsorber ships with either one or two
organic vapor carbon filters depending on the model width.
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.
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Chapter 1: Introduction
3
Chapter 1: Introduction provides a brief overview of the enclosure, explains the
organization of the manual, and defines the typographical conventions used in the
manual.
Chapter 2: Prerequisites explains what you need to do to prepare your site before
you install the enclosure. Electrical and service requirements are discussed.
Chapter 3: Getting Started contains the information you need to properly unpack,
inspect, install, and certify the enclosure.
Chapter 4: Performance Features and Safety Precautions explains how the
enclosure operates and the appropriate precautions you should take when using it.
Chapter 5: Appropriate Applications for Your Enclosure discusses the basic
operation of how to prepare, use and shut down your enclosure.
Chapter 6: Maintaining Your Enclosure explains how to perform routine
maintenance on the enclosure.
Chapter 7: Troubleshooting contains a table of problems you may encounter while
using the enclosure including the probable causes of the problems and suggested
corrective actions.
Appendix A: Components and Replacement Parts contains labeled diagrams of all
of the components of the enclosures.
Appendix B: Dimensions contains comprehensive diagrams showing all of the
dimensions for the enclosures.
Appendix C: Specifications contains the electrical requirements for enclosures.
Wiring diagrams are also included.
Appendix D: Quick Chart provides an airflow table and test data for the
enclosures.
Appendix E: References lists the various resources available that address
laboratory ventilation.
Typographical Conventions
Recognizing the following typographical conventions will help you understand and
use this manual:
Book, chapter, and section titles are shown in italic type (e.g., Chapter 3:
Getting Started).
Steps required to perform a task are presented in a numbered format.
Comments located in the margins provide suggestions, reminders, and
references.
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Chapter 1: Introduction
4
!
!
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. Only a trained certifier or contractor should
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
enclosure.
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.
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5
CHAPTER 2
PREREQUISITES
Before you install the Fume Adsorber, prepare your site for installation. A source
of electrical power should be located near the installation site to power the
enclosure. 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 requirements.
The location and air current requirements.
The electrical power requirements.
The space requirements.
Refer to Appendix B: Dimensions for complete enclosure dimensions.
Refer to Appendix C: Specifications for complete enclosure electrical and
environmental conditions, specifications and requirements.
Support Requirements
At a minimum, the supporting structure usually consists of a work surface in the
laboratory. See Chapter 3 for setting up installation.
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Chapter 2: Prerequisites
6
!
Location and Air Current Requirements
The Fume Adsorbers have been designed to contain hazardous fumes by negating
typical cross drafts and turbulence within the opening. As precautionary safety
measure and a higher level of quality management, it is recommended that the
Fume Adsorber be placed in an area to avoid:
High traffic areas where walking might cause an air disturbance or be a
nuisance.
Overhead or wall HVAC diffusers, fans, radiators or other lab equipment
producing air currents.
Next to doorways or windows that may be opened.
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.
Electrical Requirements
Standard duplex electrical receptacles should be nearby for connecting the Fume
Adsorber. See the nameplate on the rear of the enclosure for rated electrical
service.
Space Requirements
The dimensions for the different Fume Adsorber models are shown in Appendix B:
Dimensions.
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7
The United
States
Interstate
Commerce
Commission
rules require
that claims be
filed with the
delivery carrier
within fifteen
(15) days of
delivery.
CHAPTER 3
GETTING STARTED
Now that the site for your Fume Adsorber is properly prepared, you are ready to
unpack, inspect and install the enclosure. Read this chapter to learn how to:
Unpack and move the enclosure.
Set up the enclosure with the proper supporting structure.
Installation of carbon filter(s). (Fume Adsorbers ship with organic vapor
filter(s).
Connect the electrical supply.
Validate the enclosure face velocity.
Unpacking the Enclosure
Carefully remove the shrink-wrap and carton on the unit 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 DAMAGE.
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 in its final location.
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Chapter 3: Getting Started
8
Filter Type
Appropriate Use
Organic Vapor
Activated Carbon
6961300
6.0 lbs.
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
be monitored not to exceed the TWA.
Formaldehyde
(Formalin)
6961301
7.5 lbs.
Formaldehyde 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.
Ammonia and
Amines
6961302
8.7 lbs.
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.
!
Installing the Enclosure on a Supporting
Structure
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 weight of the enclosure. The 30"
wide Fume Adsorber weighs 62 lbs, and the 60" wide Fume Adsorber-2 weighs
125 lbs. The work surface should be at least as wide as the enclosure to properly
support it.
Installation of Carbon Filters
For carbon filter installation, first remove the four (or eight) Phillips screws on the
perforated baffle located inside the enclosure. Slowly remove the perforated baffle.
See the following list of available carbon filters below. All carbon filters are
installed with the gasket side on the downstream exhaust side. The carbon filters
are installed behind the upper and lower filter clamps and are removed by Phillips
screws. Install the correct carbon filter for the application. In choosing the correct
filter for your application call Labconco for assistance. See Figures A-1, A-2 and
A-3 in Appendix A and Figure 4-2 in Chapter 4 for installation diagrams.
Important: Carbon filters do not provide any particulate protection,
but provide odor control for low level concentrations below OSHA
recommended time weighted averages.
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9
!
115V
Maximum
is 2 amps.
230V
is 1 amp.
!
circuit load
Maximum
circuit load
Chapter 3: Getting Started
Connecting the Electrical Supply Source
to the Enclosure
115V Models
Simply connect the 115V power cord supplied to the IEC electrical supply plug on
the back of the enclosure.
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.
Validating the Fume Adsorber Face
Velocity
To determine the actual face velocity at the sash opening, airflow velocity readings
are taken. 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 average velocity across the opening of the enclosure is 35 fpm and should
be validated. Do not use the enclosure with an average velocity of less than 25
fpm. Consult your safety officer.
NOTE: Face velocity profiles and smoke testing should be
performed at least monthly.
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10
Figure 4-1
Performance Features
3
2
4
CHAPTER 4 PERFORMANCE
FEATURES AND SAFETY
PRECAUTIONS
Performance Features
The Fume Adsorbers are designed to meet the needs of the laboratory scientist and
provide containment of light emissions of solvents, formaldehyde and ammonia
vapors. Annoying vapors, such as xylene and toluene fumes used in cover slipping
operations are efficiently adsorbed by the Fume Adsorber carbon filter(s). The
Fume Adsorber uses a carbon filter to collect low concentrations and exhaust
filtered air back into the room.
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Chapter 4: Performance Features & Safety Precautions
11
Figure 4-2
Performance Features, Exploded View
2 5 3
1
1. Built-In Motorized Impeller Provides up to 35 fpm average face velocity.
Airflow capacity is 100 CFM on the 30" wide unit and 200 CFM on the 60"
wide unit.
2. Perforated Baffle provides uniform removal of noxious fumes. Remove
this baffle to access the carbon filter.
3. Blower Switch provides convenient ON/OFF control.
4. Hood Canopy maximizes the work area and visibility.
5. Carbon Filter is designed to remove small amounts of fumes and
chemicals. (See Chapter 6 for carbon types and estimated filter life.)
Safety Precautions
1. Although the enclosure has been engineered to maintain optimum operator
safety, caution should always be used while working inside the enclosure.
Prior to using, check to make sure that the exhaust blower is operating and
air is entering the enclosure at its specified face velocity.
2. Use good housekeeping in the enclosure at all times. Clean spills
immediately. Periodically clean the enclosure interior with mild soap and
water.
3. Do not store containers or supplies against the rear baffle, as this will affect
airflow. Blocking large portions of the rear baffle will change the airflow
pattern in the enclosure causing turbulence.
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Chapter 4: Performance Features and Safety Precautions
12
4. Always work with your hands as far back into the enclosure as possible.
5. Do not work in this enclosure without the exhaust system running.
6. General acid use, as well as perchloric acid use in this enclosure is prohibited.
7. High-level radioisotope materials are prohibited in this enclosure. Consult
your Safety Officer.
8. Avoid cross drafts and limit traffic in front of the enclosure. Air
disturbances created may draw chemical vapors out of the enclosure.
9. The use of safety goggles, protective clothing, gloves and any other personal
protective equipment recommended by your safety officer should be used.
10. Care must be taken to ensure that the concentration of gases or vapors do
not reach flammable or explosive limits. Use of an open flame must be
avoided in the enclosure.
11. Applications that generate gases or vapors from toxic chemicals must be
evaluated carefully so that buildup to levels above the TWA of the
chemical does not occur. Do not work with chemicals having a TWA
below 100 ppm.
12. Ensure that the enclosure is connected to electrical service in accordance
with local and national electrical codes. Failure to do so may create a fire
or electrical hazard. Do not remove or service any electrical components
without first disconnecting the enclosure from electrical service.
13. Dispose of carbon filters as hazardous waste. The user is responsible for
recording the chemicals adsorbed or treated by the filters and disposing properly.
14. Ensure only trained operators use the enclosure. New users should review
the User’s Manual and become familiar with the operation of the enclosure.
15. If the enclosure is to be used in a confined space, make sure the space is
well ventilated and the concentration of chemical vapors cannot accumulate
greater than the TWA.
16. Only chemicals that can be safely adsorbed and treated with specific
carbon-based filters are appropriate for use in this enclosure. Contact
Labconco for chemical assessment.
17. The warning properties (i.e., odor, taste) of the volatile organic compounds
or other material being used in the enclosure must be adequate to provide
an early indication that the carbon filters may be saturated or inadequate.
Contact Labconco for help with chemical assessment.
18. Use the smallest possible quantity of chemical(s) within the enclosure and
never exceed the amount that can be effectively adsorbed by the carbon
filters before breakthrough. Consult Chapter 6 for filter life estimates.
19. Leave the blower on for at least one minute after work in the enclosure has
been completed.
20. If a chemical is spilled on the work surface, DO NOT switch off the
blower until all traces have been removed.
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Chapter 4: Performance Features & Safety Precautions
13
21. Tag the enclosure with appropriate warning if filters have been removed for
service.
22. If the blower fails during use, processes should cease and the area should
be vacated and ventilated.
23. Always refer to the NIOSH Pocket Guide to Chemical Hazards to
understand the chemical’s properties and health risks. (See Chapter 5). For
additional help with filter and chemical selection contact Labconco at 1800-821-5525 or 1-816-333-8811.
Product Service 1-800-522-7658
14
CHAPTER 5
APPROPRIATE APPLICATIONS
FOR YOUR ENCLOSURE
Now that the installation of your enclosure is completed, you are ready to use your
Fume Adsorber. Read this chapter to learn about:
1. Routine Daily Work Procedures.
2. Suitable Applications.
3. Appropriate Chemicals for Carbon Filters.
4. Definition of Terms.
5. Hazardous Misapplications for Carbon Filters.
6. Chemical Carcinogen use with Carbon Filters.
7. Prohibited Acid Use.
Start-up
Turn on exhaust system blower with the ON/OFF switch.
Check the baffle air slots for obstructions.
Wear a long sleeved lab coat and rubber gloves. Use protective eyewear.
Wear a protective mask if appropriate. Consult your Safety Officer for
additional personal protective equipment recommendations.
Load only the materials required for the procedure. Do not overload the
enclosure.
Work Techniques
Keep all materials inside the enclosure and perform all contaminated
operations as far to the rear of the work area as possible.
Avoid using techniques or procedures that disrupt the airflow patterns of
the enclosure.
Final Purging
Upon completion of work, the enclosure should be allowed to operate for
two to three minutes undisturbed, to purge airborne contaminants from the
work area before shutting off the blower.
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Chapter 5: Appropriate Applications for Your Enclosure
15
!
Shutdown
Turn off the exhaust system blower with the ON/OFF switch.
Suitable Applications
NIOSH (National Institute for Occupational Safety and Health, USA) has
established guidelines for chemical cartridge and HEPA filtered respirators.
Suitable applications for the carbon filtered enclosures are based on guidelines
below. As with respirators, chemical contaminants are adsorbed or treated by
carbon.
Release of low concentrations of vapors effectively adsorbed or treated in
carbon based filters. Recommended for use with chemicals with a TWA of
100 or greater unless chemical can be filtered with the use of an
impregnated specialized filter; impregnated filters such as formaldehyde,
formalin, ammonia, and amines are examples of specialized filters.
Treatment of low-level carcinogens or suspected carcinogens. (See Chemical
Carcinogens in Chapter 5)
Procedures that may have traditionally been done on the open bench (low
levels only).
Odoriferous chemicals that are an unpleasant nuisance.
Other applications, not fitting the above guidelines, would be better suited with the
exhaust ducted to the outside by using some other containment enclosure offered
by Labconco.
REFERENCES TO NIOSH OR OSHA GUIDELINES AND
REGULATIONS APPLY TO ANY WORK PLACE UNDER THE
JURISDICTION OF THE U.S. DEPARTMENT OF LABOR.
OTHER COUNTRIES OUTSIDE THE U.S. HAVE
ESTABLISHED STANDARDS, WHICH MAY DIFFER
SLIGHTLY FROM THOSE USED AS GUIDELINES FOR THIS
PRODUCT. IT IS THE USER’S RESPONSIBILITY TO
BECOME AWARE OF LOCAL REGULATIONS GOVERNING
THE SAFE USE AND DISPOSAL OF CHEMICALS AND
CARBON FILTERS. KNOWLEDGE OF ESTABLISHED SAFE
EXPOSURE LEVELS IS IMPERATIVE TO THE PROPER USE
OF CARBON FILTERED ENCLOSURES.
Appropriate Chemicals for Carbon Filters
Below is a general set of rules to determine appropriateness of chemical usage.
Selected organic chemicals considered to be occupational
carcinogens by NIOSH can only be used in the filtered
enclosure with carbon filters under rigid restrictions. See
separate discussion on next page on carcinogens for special
instructions.
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Chapter 5: Appropriate Applications for Your Enclosure
16
Organics must have time weighted exposure limits (TWA) of 100 PPM or greater.
Chemicals must have a detectable odor at concentrations below the TWA for the
chemical.
Chemicals must be designated by NIOSH guidelines as acceptable for use with
chemical cartridge-type respirators (the exception is formaldehyde and
ammonia/amines, which used impregnated carbon). Chemicals not listed by
NIOSH in the Pocket Guide must be approved by Labconco Product Specialist (or
Engineering).
Inlet concentration must never exceed the IDLH (Immediately Dangerous to Life
and Health) concentrations.
Chemicals having a recommendation by NIOSH of at least “Escape GMFOV”
(Gas Mask Full-Face Respirator).
When evaporating a mixture of chemicals, the chemical having the lowest TWA
will be used to determine if the mixture meets the guidelines.
Call a Labconco Product Specialist at 1-800-821-5525 for assistance in
determining chemical appropriateness.
Definition of Terms
NIOSH – National Institute for Occupational Safety and Health/Mine Safety and
Health Administration. (U.S.A.)
TWA – Recommended Exposure Limits expressed as a Time Weighted Average.
The exposure limit for that chemical for up to a 10-hour workday, 40 hours a
week. Expressed in units of parts per million or milligrams per cubic meter.
Odor Threshold – The value in parts per million or milligrams per cubic meter for
which one might expect to smell a chemical’s presence in the air. This value is very
subjective and detection will vary with the sensitivity of one’s nose. The period of
time until the odor threshold is reached in the exhaust stream can be estimated from
Labconco’s exclusive chemical assessment program. Contact Labconco on
estimates for carbon filter life for specific applications. See Chapter 6.
Saturation Level or Time – There is a limit to the amount of chemical that can be
adsorbed by activated carbon or neutralized by chemically-treated carbon. Once
the capacity of the carbon is reached, it is considered to be saturated and will
adsorb (or neutralize) no further material; the outlet concentration of the chemical
will equal the inlet concentration from that point until the filter is replaced. (Note
that the capacity of activated carbon is not a constant, but varies with the inlet
concentration). Labconco Product Specialists can determine the estimated
saturation time for a particular chemical.
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Chapter 5: Appropriate Applications for Your Enclosure
17
!
Carbon
IDLH (Immediately Dangerous to Life and Health). An atmosphere that poses
an immediate hazard to life or produces immediate irreversible health effects.
IDLH concentrations should not be approached in the enclosure.
Hazardous Misapplications for Carbon
Filters with Volatile Chemicals
There is one scenario where the accessory carbon filter misapplication would be a
part of a hazardous condition. If the user continues to operate the enclosure with
any of the following conditions present a potentially hazardous condition will exist:
1. The inlet concentration of vapors is greater than the TWA.
2. The carbon filter becomes saturated.
3. The ventilation of the room is insufficient to dilute the exhaust of the
enclosure to below the TWA for the chemical.
When the inlet concentration is greater than the TWA, extra measures must be
taken to monitor the filter and number of room air exchanges.
Chemical Carcinogen Use with Carbon
Filters
Selected carcinogens can only be used with carbon filters in the Fume Adsorber
under strict guidance from your Safety Officer.
The use of a vented fume hood or ventilated enclosure with
ducting to the outside is always the preferred method when
working with carcinogens.
Prohibited Acid Use
The Fume Adsorber with integral blower motorized impeller cannot be exposed to
acids. Where applications require the use of acids, a vented fume hood or vented
enclosure should be used with a remote blower and ducted to the outside. Consult
Labconco for other small enclosures used with a remote blower suitable for acid
work. No exceptions are permitted, as the impeller life span will be limited with
acid use. Consult Labconco for other enclosures suitable for acid work.
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18
CHAPTER 6
MAINTAINING YOUR
ENCLOSURE
Monitoring airflow and changing the carbon filters (if equipped) is the primary
maintenance required.
Review this chapter on maintenance for the following:
1. Routine Maintenance.
2. Determination of when to replace carbon filters and how to replace.
3. Calculating carbon filter life.
Routine Maintenance Schedule
Weekly
Wipe down the interior and exterior surfaces of the enclosure with a mild
soap, depending upon the usage of the unit, and allow to dry.
Operate the exhaust system, noting the airflow velocity through the
enclosure using a source of visible smoke.
Monthly (or more often as required)
Determine the actual face velocity through the sash opening of the
enclosure where the average reading should be at the specified velocity of
35±10 fpm. (Use calibrated thermal anemometer or other approved
apparatus).
While the enclosure is filled with the contaminant, test filter condition on
carbon filters using the appropriate gas detector tube at intervals of 20% of
the total estimated time. There is a 5/16" diameter hole on the upper right
side for inserting the detector tube. The exception to the 20%
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Chapter 6: Maintaining Your Enclosure
19
Catalog #
Filter
Size
Pounds of
Carbon
Carbon Type
For use with
Adsorption
weight
Adsorption
Volume
6961300
9x26x1.38
6.0
Organic
Vapor
Organic
Vapors
Varies, see
chemical
chart
Varies, see
chemical guide and
chapter 6
6961301
9x26x1.38
7.5
Impregnated
Formasorb
Formaldehyde
10%, 0.75lbs
851 ml of 37%
Formalin
6961302
9x26x1.38
8.8
Impregnated
Ammonasorb
Ammonia and
Amines
10%, 0.88lbs
800 ml of 37%
Formalin
recommendation is formaldehyde or any carcinogen or suspected
carcinogen. These hazardous chemicals must be checked at least every 10%
of the total estimated time. Gas detector tubes for the specific chemicals
that are being used in the enclosure can be obtained from your laboratory
supply dealer.
Replace carbon filters when chemical breakthrough is indicated by odor,
time, detector tube, or for some chemicals, analytical instrumentation. See
“Replacing Carbon Filters” section of this manual in Chapter 6.
Determination of When to Replace
Carbon Filters and How to Replace
Carbon filter(s) MUST be replaced when any one of the following two conditions
are met:
1. The filtered enclosure outlet (exhaust) concentration approaches the inlet
concentration, indicating filter saturation.
2. The odor in the work area becomes intolerable or the concentration of the
chemical in the work area is greater than the TWA.
There are four means of determining when its time to change the carbon filters (not
shown in the order of preference).
Odor - A person’s sensitivity to odor, tolerance of odor and their comfort level
under odoriferous conditions vary with the individual. While odor is an indicator
that chemicals are passing through the carbon filter, several points need to be
understood:
Odor within the room is not necessarily an indication of saturation or
hazardous exposure concentrations.
Odor can be used as a prompt to sample the chemical concentration on the exit
side of the carbon filter.
Organic chemicals approved for use in the filtered enclosure have odors that
are detectable before reaching the time weighted exposure limits.
Product Service 1-800-522-7658
Chapter 6: Maintaining Your Enclosure
20
!
Detection Tubes - Color change indicators can be used to measure the
concentration of the chemical at the exit side of the carbon filter or in the outlet
exhaust. A kit including syringe pump and flexible tubing can be purchased as an
accessory from Labconco (Catalog # 6924900). Labconco Customer Service
Representatives are supplied with detector tube catalog numbers, as well as
telephone numbers to direct you to where to purchase these items.
For Organic, Formaldehyde and Ammonia, chemical specific detector tubes should
be purchased when installing fresh filters. Each kit contains instructions on how
many strokes of the syringe are required to obtain the stated sensitivity. The
sampling syringe is connected to the filtered enclosure exhaust. There is a 5/16"
diameter hole on the upper right side for inserting the detector tube. Connect the
syringe to the detector tube while the system is running and pull the air through the
tube with the syringe. Each stroke of the syringe represents a 100-ml sample and
corresponds to the number of strokes necessary to give the indicated color changes.
Due to the wide variety of organics and varying TWA’s, it is recommended that
specific detector tubes be purchased directly from Sensidyne, Draeger or your
laboratory supply dealer. Alternate detector pumps can also be purchased from
your laboratory supply dealers. The vast majority of detector tubes available start
measuring at the TWA. When a user observes a color change in the tube, they
should replace the filter immediately. If no detector tube for your specific
chemical is available, other means of detection must be used.
Time - For applications that have very consistent inlet concentrations and
operating time, “Time” can be used to anticipate saturation or TWA levels based
on prior experience. However, this does not replace the need for sampling.
Consult Labconco technical specialist for an estimate of carbon filter life based on
chemical usage. Detector tubes, or analytical instrumentation should always be
used to determine concentrations in the carbon filter. It is recommended that the
carbon filters be checked with detector tubes or other means at intervals of 20% of
the total estimated filter life. The exception to the 20% recommendation is
formaldehyde and any carcinogen or suspected carcinogen. These more hazardous
chemicals must be checked at least every 10% of the total estimated time.
Analytical Instrumentation - This is the most accurate means of measuring
concentrations of any chemical. It is the method of choice when no detector tubes
are available or the tubes are not sensitive enough to measure at the TWA
concentration for the chemical. This method is also to be used to determine
saturation when the chemical concentration is below the measurement range of
detector tubes.
Carbon Filter Replacement Procedure – See Figure(s) A-2 and A-3 in Appendix
A for Carbon Filter Replacement.
Do NOT contact blower wheel while still in motion.
NE PAS être en contact avec la roué du ventilateur tant qu’il est
en marche.
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Chapter 6: Maintaining Your Enclosure
21
= 4.4 weeks before filter saturation
= .17 ml/min
1. The carbon filter(s) are replaced by first removing the rear perforated
baffle.
2. Remove the upper support bracket for the filter. Then loosen the lower
support bracket.
3. Carefully remove the carbon filter. For 60" wide units there are two carbon
filter(s)
4. Replace the new carbon filter(s) with the gasket on the downstream side
facing the blower. Replace the filter support brackets and tighten.
5. Replace the perforated baffle; replace and tighten the screws.
Calculating Carbon Filter Life
Labconco developed a modeling program to estimate the filter life for typical
carbon filters. Since filter life is dependent on the chemical used, the airflow, filter
size, and the dwell time, refer to the Chemical Guide for the Paramount® Filtered
Enclosure. The estimated life for carbon filters for the Fume Adsorbers with
integral impeller is conservatively calculated at 10% of the published values for
the Paramount in the Chemical Guide. Consult with a Labconco Technical
Specialist for further information on filter life. For example, if you use p-Xylene
in your process and evaporate approximately 100 ml per week during 2 hours of
use per day then follow these steps to calculate the concentration in parts per
million (ppm).
Steps for Calculating PPM and Filter Life
1. Determine the amount of the proposed chemical lost to evaporation over a
given amount of time. For example, if you use p-Xylene and lose
approximately 100 ml per week during 2 hours of use per day.
2. Convert the amount lost into ml/min. For this example:
100 ml X 1 week X 10 hours = 100 ml lost
week 10 hours use 600 minutes 600 minutes
3. Convert ml/min to PPM by multiplying ml/min by the conversion factor
found in the second to the last column on the right of the Paramount
Chemical Guide. For p-Xylene .17 x 25 = 4.2 PPM.
4. Find the PPM value on the chart that comes closest to the value you just
calculated in step #3. In this example, round up to 5 PPM, which is close to
the calculated 4.2. We may approximate the filter life to be around 437 hours
of actual use, but use 10% of this for the Fume Adsorber filter or 44 hours.
5. Insert the estimated filter life to determine how long filters will last.
44 hours filter life
10 hours per week use
6. This value is for one organic vapor filter. So, 4.4 weeks is approximately
one month before filter saturation.
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Chapter 6: Maintaining Your Enclosure
22
Number of
Filters
Filter Size
Pounds of
Formasorb
Carbon
Adsorbed weight of
Formaldehyde
Adsorption Volume of
Formalin
1
26x9x1.38
7.50
0.75 lbs./340 g
851 ml
Number of
Filters
Filter Size
Pounds of
Ammonasorb
II Carbon
Adsorbed weight of
Ammonia
Adsorbed Volume of
50% Ammonia Solution
1
26x9x1.38
8.75
.88 lbs./ 400 g
800 ml
Formaldehyde only
For formaldehyde, use 10% of the impregnated carbon weight. Formalin is 37%
formaldehyde by weight. The density of formalin is 1.08 g/ml. These values are
for one filter.
Ammonia only
For ammonia, use 10% of the impregnated carbon weight. Assume use of a 50%
solution of ammonia for these calculations. These values are for one filter.
Product Service 1-800-522-7658
23
PROBLEM
CAUSE
CORRECTIVE ACTION
Contaminants outside
of enclosure.
Improper user
techniques for the
enclosure.
See Chapter 3 and Chapter 4 sections in
the manual. (Ref. Appendix D).
Restriction of the
baffle air slots or
blockage of the
exhaust outlet.
Remove obstruction to ensure that all
air slots and the exhaust outlet are
unobstructed.
External factors are
disrupting the
enclosure airflow
patterns or acting as a
source of
contamination.
See “Location Requirements” Chapter
2, “Certifying the Enclosure” Chapter
3, and “Safety Precautions” Chapter 4
sections of this manual. (Ref. Appendix
D).
Enclosure has
improper face
velocity.
Have the enclosure’s exhaust system
checked. Check carbon filters for
loading. Enclosure should have an
average face velocity of 35 fpm.
Filtered exhausted.
Change and replace the carbon filter.
CHAPTER 7
TROUBLESHOOTING
Refer to the following table if your Fume Adsorber fails to operate properly. If the
suggested corrective actions do not solve your problem, contact Labconco for
additional assistance.
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Chapter 7: Troubleshooting
24
PROBLEM
CAUSE
CORRECTIVE ACTION
Blower won’t
operate.
Unit not plugged
into outlet.
Plug the enclosure into appropriate
electrical service.
Circuit breaker(s)
or Ground Fault
Interrupter.
Reset circuit breaker.
Blower wiring is
disconnected.
Inspect blower wiring and re-connect.
Blower switch is
defective.
Replace switch.
Motorized impeller
or blower is
defective.
Replace motorized impeller or blower.
Product Service 1-800-522-7658
25
Item
Qty.
Part Number
Description
1A 1 6961000
Canopy Hood, Plastic 30"
1B 1 6961001
Canopy Hood, Plastic 60"
2A 1 6961500
Baffle, 30" Perforated
2B 1 6961501
Baffle, 60" Perforated
2C
4 or 8
1887808
Screw, Machine #10-24 x .50 PH Phil
3
2 or 4
6962500
Bracket, Filter Clamp
4
4 or 8
1896810
Screw, Machine #10-24 x .62 Phil PH/W
5A
1 or 2
6962000
Motorized, Impeller, 115V
5B
1 or 2
6962001
Motorized, Impeller, 230V
6A 1 1307000
Switch, Rocker-DPST
6B 1 6962600
Wire Harness 115/230V
7A 1 1327205
Circuit Breaker 2 Amp (115V)
7B 2 1327206
Circuit Breaker 1 Amp (115V)
8A 1 1334500
Power Cord, 115V
8B 1 1334100
Power Cord, 230V
9A
1 or 2
6961300
Filter, Disposable Organic Vapor
9B
1 or 2
6961301
Filter, Disposable Formaldehyde
9C
1 or 2
6961302
Filter, Disposable Ammonia
APPENDIX A
ENCLOSURE COMPONENTS
AND REPLACEMENT PARTS
The components that are available for your Fume Adsorber are listed. The parts
shown are the most commonly requested. If other parts are required, please
contact Product Service.
Product Service 1-800-522-7658
Appendix A: Enclosure Components & Replacement Parts
26
Figure A-2
30" Wide Exploded View
Figure A-1
Replacement Parts Isometric
6
2
1
4
3
4
9
7, 8 Not Shown
6
2
4
3
5
Product Service 1-800-522-7658
Appendix A: Enclosure Components & Replacement Parts
27
Figure A-3
60" Wide Exploded View
4
3
9
6
7, 8 Not Shown
5
5 3 9
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28
APPENDIX B
DIMENSIONS
See the following dimensions below for all Fume Adsorbers.
Figure B-1
Dimensions for 30" & 60" Wide Fume Adsorber
(Dimensions are in inches)
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29
APPENDIX C
FUME ADSORBER
SPECIFICATIONS
This Appendix contains technical information about all the Fume Adsorber
enclosures including electrical specifications and environmental operating
conditions.
Electrical Specifications
2 Amps, 115V, 50/60 Hz
1 Amp, 230V, 50/60 Hz
Environmental Conditions
Indoor use only.
Maximum altitude: 6562 feet (2000 meters).
Ambient temperature range: 41° to 104°F (5° to 40°C).
Maximum relative humidity: 80% for temperatures up to 88°F (31°C),
decreasing linearly to 50% relative humidity at 104°F (40°C).
Main supply voltage fluctuations not to exceed ±10% of the nominal
voltage.
Transient over-voltages according to Installation Categories II (Over-
voltage Categories per IEC 1010). Temporary voltage spikes on the AC
input line that may be as high as 1500V for 115V models and 2500V for
230V models are allowed.
Used in an environment of Pollution degrees 2 (i.e., where normally only
non-conductive atmospheres are present). Occasionally, however, a
temporary conductivity caused by condensation must be expected, in
accordance with IEC 664.
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30
Model Size
30"
60"
Height from Work Surface (inches)
13.50
13.50
Total Open Area with Bypass (sq. ft.)
2.75
5.55
Exhaust Airflow Volume at 35 fpm (CFM)
100
200
*Motor Horsepower (HP)
0.05
0.10
APPENDIX D
QUICK CHART FOR THE FUME
ADSORBERS
To determine the actual face velocity at the sash opening, airflow velocity readings
will need to be taken across the opening. 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 plastic
hood canopy and the second row is 3" up from the work surface.
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APPENDIX E
REFERENCES
Many excellent reference texts and booklets are currently available. The following
is a brief listing:
Applicable Standards
UL 61010-1 Standard for Safety Electrical Equipment for Measurement, Control
and Laboratory Use; Part 1: General Requirements
Specifies the general safety requirements for electrical equipment.
Based on International Electrotechincal Commission (IEC) Publication
61010-1 with differences noted for U.S. use.
Tests for protection against electrical shock, mechanical hazards, spread of
fire, radiation, liberated gases, explosions and implosion.
Tests for resistance to shock, vibration, impact, heat, moisture and liquids.
Underwriters Laboratories Inc.
333 Pfingsten Road
Northbrook, IL 60062
(847) 272-8800
www.ul.com
NIOSH Pocket Guide to Chemical Hazards
NIOSH Publications
Mail Stop C-12
4676 Columbia Parkway
Cincinnati, OH 45226-1998
Fax (513) 533-8573
Product Service 1-800-522-7658
Appendix C: Fume Adsorber Specifications
32
General References
American Conference of Governmental Industrial Hygienists. Industrial Ventilation, A
Manual of Recommended Practice, Cincinnati, OH
Department of Labor, Occupational Safety and Health Administration, 29 CFR Part 1910,
Occupational Exposures to Hazardous Chemicals in Laboratories, Final Rule. Vol. 55,
No. 21. Washington D.C.:1990
NIH Guidelines for the Laboratory Use of Chemical Carcinogens. NIH Publication No.
81-2385.
Product Service 1-800-522-7658
33
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