Forma Scientific 1184 User manual

Forma Scientific, Inc.
P.O. Box 649
Marietta, Ohio 45750
U.S.A. Telephone: [phone]
Telefax: [phone]
_______________________________________
Models:
1184, 1185, 1186, 1194,
1195 and 1196
Biological Safety Cabinet
Class II, Type AB3
Manual No. 7011186
IMPORTANT!
READ THIS INSTRUCTION MANUAL.
Failure to read, understand and follow the instructions in this manual may result in
damage to the unit, injury to operating personnel and poor freezer performance.
CAUTION! All internal adjustments and maintenance must be performed by qualified
service personnel.

Forma Scientific, Inc.
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The material in this manual is for information purposes only. The contents and the
product it describes are subject to change without notice. Forma Scientific Inc. makes no
representations or warranties with respect to this manual. In no event shall Forma Scientific
Inc. be held liable for any damages, direct or incidental, arising out of or related to the use of
this manual.
MANUAL NO 7011186
1 5-1-94 DG Measuring blower motor voltage
0 6-1-93 DG Minor format revision
REV ECN DATE BY DESCRIPTION

Forma Scientific, Inc.
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General Safety Notes Used In This Manual
This symbol alerts the user to important operating and/or
maintenance instructions. It may be used alone or with other
safety symbols. Read the accompanying text carefully.
Potential electrical hazards. Only qualified persons should
perform the instructions and procedures associated with this
symbol.
Extreme temperature hazards, hot or cold. Instructions associated
with this symbol should only be carried out when using special
handing equipment or when wearing special, protective clothing.
Potential biological hazards. Proper protective equipment and
procedures must be used when following instructions associated
with this symbol. Reference O.S.H.A.
Regulation 1910-1030.
Potentially hazardous energy. Equipment being maintained or
serviced must be turned off and locked off to prevent possible
injury. Reference O.S.H.A. Regulation 1910-147.
Remember:
√ Always use the proper protective equipment (clothing, gloves, goggles etc.).
√ Always dissipate extreme cold or heat, or wear protective clothing.
√ Always follow good hygiene practices.
√ Each individual is responsible for his/her own safety.

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TABLE OF CONTENTS
SECTION 1 - RECEIVING
1.1 Preliminary Inspection
1.2 Visible Loss or Damage
1.3 Concealed Loss or Damage
1.4 Responsibility for Shipping Damage
1.5 Unpacking List
SECTION 2 - INTRODUCTION
2.1 Description
2.2 Theory of Operation
2.3 Airflow Diagram (Fig. 2.0)
SECTION 3 - INSTALLATION
3.1 Location
3.2 Power Connection
3.3 Plumbing Connection
3.4 Exhaust Requirements
SECTION 4 - OPERATION
4.1 Control and Indicating Devices
a. Blower Switch
b. Light Switch
c. Ultra-Violet Light (Optional)
d. Alarm By-Pass Switch (sliding window models only)
e. Static Pressure Gauge (in. W.G.)
f. Blower Speed Control
1. Measuring Blower Motor Voltage
g. Blower Motor/Lights Reset Button (15 Amp)
h. Receptacle Reset Button (15 Amp)
i. Duplex Receptacles

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SECTION 4 - OPERATION (continued)
j. Drain Valve
k. Service Valves
l. Exhaust Filter Guard
m. Hinged Window Assembly
n. Sliding Window Assembly
4.2 Cabinet Drawing 4.0
4.3 Control Panel Drawing 4.1 (Models 1184/1186)
4.4 Control Panel Drawing 4.2 (Models 1194/1196)
SECTION 5 - GENERAL CAUTIONS
5.1 General Caution Notes
5.2 Important Label Location Drawing
SECTION 6 - CABINET START-UP
6.1 General Recommendations
6.2 Use of Auxiliary Equipment in the Cabinet
6.3 Cabinet Check
6.4 Start-Up Procedure
SECTION 7 - TROUBLESHOOTING
7.1 Troubleshooting Guide
SECTION 8 - MAINTENANCE
8.1 Checking the Static Pressure Gauge "Zero"
8.2 Re-zeroing the Static Pressure Gauge
8.3 Adjusting the Damper
8.4 Biological Safety Cabinet Test Grids Models 1184/1186
8.5 Biological Safety Cabinet Test Grids Models 1186/1196

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SECTION 9 - SPECIFICATIONS
9.1 Model 1184/1185 (4' Cabinet with sliding window)
9.2 Model 1186 (6' Cabinet with sliding window)
9.3 Model 1194/1195 (4' Cabinet with hinged window)
9.4 Model 1196 (6' Cabinet with hinged window)
SECTION 10 - ACCESSORIES
10.1 Accessories (Chart)
SECTION 11 - PARTS LIST
11.1 Model 1184/1185
11.2 Model 1186
11.3 Model 1194/1195
11.4 Model 1196
SUPPLEMENTS

Forma Scientific, Inc.
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1-1
SECTION 1 - RECEIVING
1.1 Preliminary Inspection
This safety cabinet was thoroughly inspected and carefully packed prior to
shipment and all necessary precautions were taken to ensure its safe arrival.
Immediately upon receipt, before the unit is moved from the receiving area, carefully
examine the shipment for loss or damage. Unpack the shipment and inspect both
interior and exterior for any in-transit damage.
1.2 Visible Loss or Damage
If any loss or damage is discovered, note any discrepancies on the delivery
receipt. Call the delivering carrier and request that their representative perform an
inspection. Do not discard any of the packing material or move the shipment from the
receiving area.
1.3 Concealed Loss or Damage
If damage is discovered upon unpacking the shipment, stop further
unpacking, retain all packaging material. Immediately notify the delivering carrier,
requesting that an inspection be performed as soon as possible. Again, under no
circumstances move the shipment from the receiving area.
1.4 Responsibility for Shipping Damage
For products shipped F.O.B. Marietta, Ohio, the responsibility of Forma
Scientific, Inc. ends when the merchandise is loaded onto the carrier's vehicle. On
F.O.B. Destination shipments, Forma Scientific's and the carrier's responsibility ends
when your Receiving Department personnel sign a free and clear delivery receipt.
Whenever possible, Forma Scientific, Inc. will assist in settling claims for loss or in-
transit damage.
1.5 Unpacking List
The Installation/Operation manual is taped down to the interior work
chamber of the cabinet. Included with the Installation/Operation manual are four
index buttons. These buttons may be used to identify the type of service supplied to
the service valves. Also included in a separate bag, is a small Allen wrench (used for
calibrating the Static Pressure Gauge). This Allen wrench should be kept with the
manual at all times.

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2-1
SECTION 2 - INTRODUCTION
2.1 Description
The 1184/1186/1194/1196 Series is a Class II, Type A/B3 cabinet. The "Type A/B3"
designation indicates two alternative uses of the cabinet. When vented directly into the laboratory
room, the unit serves a "Type A" unit. When vented to the outside atmosphere, through an in-
house exhaust system, it serves as a "Type B3" unit. Either usage of the cabinet offers both
personnel and product protection.
The cabinet can be used with low-to-moderate risk hazard to the user and/or the
experiment. Class 1, 2, and 3 (low-to-moderate risk) agents are described in the "Biosafety In
Microbiological And Biomedical Laboratories"; CDC NIH Publication No. (NIH) 88-8395, 2nd
Edition, May 1988. The 1184/1186/1194/1196 cabinets are designed to meet the requirements of
the National Sanitation Foundation Standard #49.
The cabinet is available in a sliding or hinged window version. The cabinet's window
permits the user to place auxiliary equipment and research implements in the work area. The
work opening must be held to 10" during all work procedures. If the window is raised higher than
the designated 10", the air barrier at the front of the cabinet will be weakened and containment
will be seriously impaired.
2.2 Theory of Operation
Figure 2.1 shows the general airflow pattern of the cabinet.
Clean, filtered air descends through the work zone with approximately 40% being
discharged through the exhaust HEPA filter with the remaining air recirculating through the
supply HEPA filter into the work area. Exhausted air is replaced by room air entering the system
through the front access opening.
Room air entering the work zone, through the front access opening, completes the air
barrier at the unit face and is responsible for the containment properties of the unit. All work
must be performed beyond the intake grille, on the solid work tray.

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2-2
2.3 Airflow Diagram
Figure 2-0

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3-1
SECTION 3 - INSTALLATION
3.1 Location
Locate the cabinet on a firm level surface in an area of minimum ambient temperature
fluctuation. The cabinet should be placed in a somewhat remote area of the laboratory, away from
disruptive air currents caused by excessive personnel traffic, air-conditioning or heating
ductwork, and/or laboratory windows and doors. Proper cabinet location is vital, as drafts can
disrupt critical airflow characteristics and allow room contaminants to enter or escape the cabinet
work area.
Where space permits, a clear fourteen inches should be permitted on each side of the
cabinet for maintenance, and proper performance purposes. A recommended twelve inch height
should be permitted from the top of the cabinet to the ceiling.
3.2 Power Connection
NOTE: The electrical wall outlet(s) leading to the cabinet should be accessible for electrical
testing.
This cabinet is equipped with two power cords, one for the internal blower motor/lights,
and the other for the duplex utility outlets. It is recommended that the cords be plugged into
separate circuits, so if the duplex outlets overload, the cabinet itself will not shut down.
Connect each power cord to an adequate power supply. Refer to Section 9 or to the
electrical data plate on the front of the unit for exact electrical specifications.
3.3 Plumbing Connection
Two service valves are standard with each cabinet. These valves are located on the right
and left side of the work station.
NOTE: REMOVE HOLE PLUGS FOR ACCESS! Connection to utilities should be made with
proper materials for the individual service.
All service valves are piped within the cabinet. External connection is to 3/8" FPT
coupling. Identification index buttons are supplied. The cabinet will accommodate six service
valves. The additional four service valves may be purchased from Forma Scientific, Inc.
CAUTION! Explosive/flammable substances should never be used in the cabinet, unless
approved and monitored by a biological safety officer or other qualified individual.

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3.4 Exhaust Requirements
Filtered air from the cabinet may be exhausted directly into the room or vented to the
outside through an external exhaust system. Consult a biological safety officer or other qualified
individual for cabinet-type exhaust requirements.
a. Direct Room Exhaust
1. Locate the exhaust filter guard on the top of the cabinet.
2. Remove and save the four acorn-type nuts and washers that secure the
exhaust filter guard.
3. Remove the cardboard cover plate from the top of the cabinet.
4. Replace the exhaust filter guard with the slope toward the front and the back of the
unit. Secure it with the four acorn-type nuts and washers removed in Step #2.
b. External Exhaust System (For Class II Type B3Only)
The intermediate connection of the cabinet to any external exhaust system (in-house) can
be done by using an exhaust transition which is available from Forma Scientific, Inc. The
exhaust transition requires a minimum of 16-1/2" headroom from the top of the cabinet.
CAUTION: The exhaust system should have safeguards against exhaust failure. It is
required that a biological safety officer or industrial hygienist or other qualified
individual review the agents and chemicals used inside the cabinet to determine if
additional filtration treatment is necessary before venting to the atmosphere.
The exhaust system must be capable of handling the volume of air passing through the
cabinet.
Exhaust requirements are approximately:
Model 1186: 505-556 CFM
Model 1194: 339-369 CFM
Model 1184: 339-369 CFM
Model 1196: 510-561 CFM

Forma Scientific, Inc.
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4-1
SECTION 4 – OPERATION
4.1 Control and Indicating Devices
(Refer to Figures 4-0, 4-1 and 4-2 for proper identification.)
Before operating the cabinet, it is recommended that the user(s) become familiar with the
following items on the cabinet.
a. Blower Switch
The blower switch controls the on/off power to the internal blower.
b. Light Switch
The "dual purpose" light switch controls power to the fluorescent lamp or the optional ultra-
violet lamp (both lamps are located in the work area).
Note: With the ultra-violet lamp option, the switch provides the following settings; "off"=
center, fluorescent "on" top side, and ultra-violet "on" bottom side. Only one lamp may be lit at
one time.
c. Ultra-Violet Light (Optional)
CAUTION: Eyes or skin should not be exposed to ultra-violet light. Recommended usage is
only when lab is not in use.
Cabinets may be equipped with an ultra-violet germicidal light as optional equipment.
The "dual purpose" light switch labeled "Lights" controls power to the optional ultra-violet lamp.
Note: with the ultra-violet lamp option, the switch provides the following settings; "off" =
center, fluorescent "on" top side, and ultra-violet "on" bottom side. only one lamp may be lit at
one time.
d. Alarm By-Pass Switch (Sliding Window Models Only)
The Alarm By-Pass switch permits the operator to disable/silence the audible Window
Above 10 Inch alarm for approximately five minutes. The "RED" visual indicator will remain
illuminated. This allows the operator to load or unload the work area without an audible alarm. A
"ring-back" feature reminds the operator that the window is still above the 10 inch level.

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4-2
e. Static Pressure Gauge (In. W.G.)
The static pressure gauge, located on the control panel, measures the air pressure
differential across the filters providing an indication of filter "loading". As the filters become
loaded, resistance increases and the reading on the static pressure gauge increases accordingly.
When the reading increases by 50% (from original measurement), cabinet airflow should be
checked with a thermoanemometer, by a qualified service technician. The filters must be replaced
if proper airflow cannot be obtained.
Note: The static pressure gauge should not be used as a direct measure of airflow.
f. Blower Speed Control
The blower speed control, located on the top left back of the control panel, is used to
adjust the air velocity from the internal blower motor. The blower speed is adjusted by turning
the screw on the variable resistor mounted on the circuit board adjacent to the controller. (Refer
to the drawing following.) A clockwise turn of the screw adjustment will increase air velocity and
a counter-clockwise turn will decrease it.
The blower speed is factory set and should only be changed by a qualified technician.
Figure 4-3
Component locations on the printed circuit control board

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4-3
g. Blower Motor/Lights Reset Button (15 Amp)
The Reset button (located on the left side of the control panel, directly below the
Receptacle Reset button) is an inline circuit breaker for the internal blower motor and lighting. If
an overload condition occurs, the circuit breaker will trip, and the button will protrude from the
panel. Depressing the button will reset the circuit breaker.
Note: Should an overload condition occur,
1. Turn power off to blower.
2. Turn power off to lighting.
3. Depress the blower motor/lighting reset button.
h. Receptacle Reset Button (15 Amp)
The Receptacle Reset button (located directly above the Blower Motor/Lights Reset
button) is an inline circuit breaker for the receptacles only. If an overload condition occurs the
circuit breaker will trip, and the button will protrude from the panel. Depressing the button will
reset the circuit breaker.
Note: Should an overload condition occur,
1. Turn power off to appliance/apparatus.
2. Unplug appliance/apparatus from receptacle.
3. Turn receptacle power switch to off position.
4. Depress the receptacle reset button.
i. Duplex Receptacles
A duplex receptacle (115 volts, 15 amps) is located on the left and right side wall of the
workstation. The receptacle switch located on the control panel controls power to the duplex
receptacles.
j. Drain Valve
The drain valve, located on the right front side of the cabinet, is provided for the safe
drainage of the drain pan. This valve should remain closed while work is being performed in the
cabinet and should be used only in the event of a major spill.
CAUTION! If an accidental spill occurs, immediately consult a biological safety officer or
other qualified individual for proper procedures. To ensure the proper containment of a spill,
connect a sealed hose from the drain valve to a sealed container.

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k. Service Valves
Two service valves are standard with each cabinet. These valves are located on the right
and left side of the workstation and can be coded with the type of service that they supply.
Identification index buttons are supplied.
The cabinet will support a total of six service valves. Additional service valves may be
purchased from Forma Scientific Inc.
l. Exhaust Filter Guard
The exhaust filter guard, located on top of the exhaust filter, protects the exhaust airflow
and prevents the storing of objects on top of the housing.
m. Hinged Window Assembly
The hinged window assembly allows the operator to lift the glass window to place items
within the work area.
CAUTION! When work is being performed in the cabinet, the hinged window must be closed
to avoid contamination to product and personnel.
n. Sliding Window Assembly
The sliding window assembly allows the operator to raise the glass window to place
items within the work area.
CAUTION! When work is being performed in the cabinet, the sliding window must be in
the 10" position to avoid contamination to product and personnel.
Note: If the sliding window is above the 10" level, a red indicating light and audible buzzer will
warn that an unsafe condition exists.

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4-5
4.2 Overview of Cabinet Drawing
Drawing #4.0

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4.3 Overview of 1184/1185/1186 Control Panel
Drawing #4.1

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4.4 Overview of 1195/1195/1196 Control Panel
Drawing #4.2

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5-1
SECTION 5 - GENERAL CAUTIONS
5.1 Caution Notes
1. Following initial installation, the unit must be thoroughly tested and certified.
2. All activities to be performed within the cabinet should be approved by a biological
safety officer or other qualified individual.
3. Since the HEPA filters remove particulates only (not gas), explosive/flammable
substances should never be used in the cabinet, unless approved and monitored by a
biological safety officer or other qualified individual.
4. Ultra-violet lighting should not be used while personnel are using the cabinet. If
exposure cannot be avoided the proper safety gear/clothing must be worn. Consult a
biological safety officer or other qualified individual for proper procedures.
5. If the cabinet is to be used for biological or toxicological applications, it must be
monitored by a biological safety officer or other qualified individual.
6. If the unit needs to be serviced, it must be decontaminated to protect service personnel
from contamination. The cabinet must then be recertified by a qualified certifying
agency.
7. None of the perforations in the work area may be covered or blocked, as airflow will be
disrupted and contamination may occur.
8. Do not use cabinet for any type of storage.