Thermo Scientific 3950, 3951 User Manual

Designed for growing needs

Part of Thermo Fisher Scientific

Thermo Scientific Forma

®

Reach-In CO2Incubator

Thermo Scientific Forma Reach-In CO

2

Incubator

Features and Technical Specifications

2

Uniform Performance

High Capacity Reach-In that Grows with Your Needs

Our full-featured Thermo Scientific Forma Reach-In CO2Incubator is the reliable

reach-in that will meet your application needs today and in the future – without requiring

expensive add-on options. This durable unit is ideal for culturing large volumes of patient

samples for bacterial growth, performing short-term growth studies, and working with

large volume products. The reach-in provides elevated RH to prevent product desiccation

in medium-term cultures, and maintains temperature uniformity even when equipment is

installed in the chamber (e.g., cell rollers, rockers, shakers, spinners, or stirrers).

HIGH CAPACITY
MODEL 3950 (3951)

• Roomy 29.0 cu. ft. interior volume

• Five adjustable shelves included

• Swivel, locking casters for mobility

•

All stainless steel interior for durability

• Access ports and interior outlet
for convenience

Tight temperature uniformity contributes to an ideal culturing environment, even when the chamber

is completely full.

Valuable features are included, rather than optional, ensuring cost-effectiveness and ultimate

flexibility for a wide range of applications.

This carefully designed reach-in is easy to configure and use. It includes powerful, intuitive

Enviro-Scan

®

controls that are common to other Thermo Scientific Forma products, a selectable

humidity range, and accessories for specialized needs, including shelf systems to support two

shakers or extra-heavy product loads.

The Thermo Scientific Forma Reach-In

CO

2

Incubator – it’s built to last; it’s designed

to accommodate your growing needs.

Tight Temperature Uniformity for Ideal Culturing

Temperature uniformity contributes to an ideal
culturing environment. You can be confident of
optimum temperature uniformity and recovery
when you put this high capacity chamber to
the test with large product loads and low output,
heat-generating equipment.

Advantages of a Directed Horizontal
Laminar Airflow System

Our reach-in incubator’s directed airflow system
promotes an ideal growth environment. The proven
design includes a positive pressure feed plenum on
the left side of the chamber and a negative pressure
return plenum on the right. This combination directs
air across the surface of each solid shelf.

Even when filled with samples or equipment, each
shelf receives a consistent flow of conditioned air
for optimum temperature uniformity and recovery

.
By design, the feed plenum cannot be blocked
by the chamber’s contents.

As opposed to our horizontal airflow system,
top-to-bottom (non-directed) airflow systems use
a top-mounted fan to push air down through wire
shelves. Temperature uniformity and recovery
can deteriorate quickly when shelves are filled
because air movement is blocked. That temperature
variation, alone or when combined with frequent
door openings, may compromise growth conditions
or make process validation difficult.

The Thermo Scientific Forma Reach-In CO

2

Incubator’s directed airflow minimizes the risk of
product desiccation and loss, and wasted time and
money due to poor temperature uniformity and
recovery

.

3

Valuable Features Included for Cost­Effectiveness and Flexibility –
Right from the Start!

Our rugged 29.0 cu. ft. (821.2 liters) Thermo
Scientific Forma Reach-In CO

2

Incubator is loaded
with valuable features that will serve you from
day one. You don’t need to purchase a range of
expensive options to create a chamber that truly
meets your needs. Primary features for ultimate
flexibility are already built-in.

• Swivel, locking casters ensure easy mobility for

installation and cleaning. Leveling feet provide
stability for added safety in the lab.

• Heated triple-pane glass door minimizes

condensation and permits a clear view of your
product

.

• Standard remote alarm contacts and available

data outputs allow connection to an in-house
monitor/alarm system to track chamber
conditions, helping you meet internal and
regulatory documentation requirements

.

• Two thru-wall access ports (one on right and

left sidewalls) make it possible to add probes,
sensors, power cords, etc. without altering the
cabinet

.

• Interior and exterior accessory receptacles

provide a convenient power source.

– Interior GFCI duplex receptacle on the 115V

Model 3950 (single European 230V CEE 7 on
Model 3951), located in the

upper right corner

of

the

rear wall, permits the use of shakers,
cell rollers, and other equipment inside the
chamber, eliminating the inconvenience of an
extra external power strip

.

–

Exterior

receptacle, located on the

upper
right side of the control panel, is available
for connecting an optional recorder or
other equipment

.

• Heavy-duty, solid stainless steel shelves are

easy to clean, saving time and effort; more
corrosion resistant than coated wire shelves
for long life; and adjustable on 2.0" (5.1cm)
centers for convenience

.

• Additional reinforced shelving systems are

available for increasing shelf load and maximizing
stability when used with heavy product load or
equipment, such as our Thermo Scientific Forma
Orbital Shakers.

• Stainless steel interior is more durable and

corrosion resistant than plastic or painted metal,
ensuring a long life and minimizing equipment
costs

.

Our directed airflow design

4

Easy to Configure and Use

Quality construction. Reliable performance.
Intuitive controls. Our reach-in CO

2

incubator is

designed for ease of use and long life.

• Three-setting RH system – off, medium,

high – is easy to use, reliable, and can be
customized for your application.

• Three water f

ill options –

automatic, semi-automatic,
and ergonomic manual – accommodate your
facility’s setup and provide the convenience of a
long time period between refills

.

• Enviro-Scan Microprocessor Message Center

(shown below) allows you to control all parameters
without complicated programming

.

Audible/Visual Alarm

Alarm Silence

Optional Built-In Gas
Guard System

Setpoint – Set Temp, Overtemp, CO

2

Run – SYSTEM OK appears during
normal operation, message changes to
describe alarm conditions

Calibration – Calibrate Air Temp, CO

2

System Configuration – Configure H2O Alarm (on/off),
Audible On/Off, Access Code, Audible/Visual Alarms,
CO2(zero and span numbers), RH (high/low), Display
CO2(on/off), and the following options: Automatic Tank
Selector (if equipped with the optional gas guard) and
RS-485 Interface

Mode Select

CO2Inject Indicator

CO2Display

Heater On Indicator

Scroll for Program
Parameters

Temperature Display

Programming Buttons

Cell Roll System

The optional cell roll system allows extensive production
of monolayer cell cultures in standard roller culture
vessels. Oxygenation and exposure of the cells to the
media growth area are improved. Culture yields are
increased by the uniform temperature control and cell
roll system’s continuous, gentle rotation

.

The reach-in
accommodates
a cell roller up
to 7 decks high
with 5 positions
per deck for a
maximum total
of 35 positions,
or bottles.

Achieving
maximum
capacity
requires a
Model 4862
(4868) three tier
cell roller base
(15 positions),
four add-on tiers
(20 positions),
and a reinforced
floor/ramp.

All position drive is standard. Adjustable speed control
provides precise speeds of 0.125 to 6.25 RPM with
±1.0% accuracy, based on 110mm bottles.

Stock No. Description

4862 Three Tier Cell

Roller Base
(15 positions),
120V, 50/60 Hz,

29.8"W x 27.8"H x

24.4"F-B (75.7cm x

70.6cm x 62.0cm)

4868 Same as Model

4862 but 230V, 50/60 Hz

190049 Add-On Tier (5 positions),

29.8"W x 7.1"H x 24.4"F-B (75.7cm x

18.0cm x 62.0cm), customer installed

190777 Reinforced Floor with Removable

Ramp, ramp extends 23.0" (58.4cm),
factory installed

500182

Same as No. 190777 but customer installed

228077 Rotation Alarm System, includes

annunciator jack, factory installed

228078 Battery Back-Up, provides 24 hours

of power if a power failure occurs,
factory installed

475560

110mm x 285mm Glass Bottles (4 per case)

(Additional accessories are listed on page 6.)

Thermo Scientific Forma Reach-In CO

2

Incubator

Features and Technical Specifications

5

Specifications

Temperature

Control. . . . . . . . . . . . . . ±0.1°C

Range . . . . . . . . . . . . . . 5°C above ambient

to 60°C (140F)

Uniformity . . . . . . . . . . . ±0.3°C @ 37°C (98.6F)

Tracking Alarm . . . . . . . . User-programmable low

Overtemperature

Sensor . . . . . . . . . . . . . . Precision thermistor

Setability . . . . . . . . . . . . 0.1°C

Function. . . . . . . . . . . . . User-programmable, action

(shuts off heat), and indicator

Controller. . . . . . . . . . . .

Independent analog electronic

Temperature Safety

Sensor . . . . . . . . . . . . . . Independent thermostat

Controller. . . . . . . . . . . .

Independent analog electronic

CO

2

Control. . . . . . . . . . . . . . Better than ±0.1%

Range . . . . . . . . . . . . . . 0-20%

Inlet Pressure . . . . . . . . 15 PSIG (1.0 bar)

Sensor . . . . . . . . . . . . . . T/C (thermal conductivity)

Readability & Setability . 0.1%

Tracking Alarm . . . . . . . . User-programmable high/low

Humidity

Input Water Quality . . . .

50K to 1Meg Ohm resistance

Selectable Ranges. . . . . Off, Medium >80%,

High >90%

Humidity Reservoir . . . . 4 gallons (15.1 liters)

Water Level Alarm. . . . . User-programmable on/off

Fittings

Access Port . . . . . . . . . . 2.4" (6.1cm) I.D., one on

each side, with stopper
CO

2

Inlet . . . . . . . . . . . . 1/4" hose (barbed)

Water Inlet. . . . . . . . . . . 1/4" MPT

Condensate Drain . . . . . 3/8" FPT

Overflow Drain . . . . . . . 3/8" MPT

Unit Heat Load

115V/230V . . . . . . . . . . . 510 BTUH (150 Watts),

129 kcal per hour

Shelves

Dimensions . . . . . . . . . . 30.6" x 25.8"

(77.7cm x 65.5cm)

Construction . . . . . . . . .

Type 304, 2B finish,

solid stainless steel

Surface Area . . . . . . . . . 5.4 sq. ft. (0.5 sq. m)

Max. per Chamber . . . . 145.8 sq. ft. (13.5 sq. m)

Standard, Maximum . . . 5, 27

Construction

Interior Volume . . . . . . . 29.0 cu. ft. (821.2 liters)

Interior. . . . . . . . . . . . . . Type 304, 2B finish,

stainless steel

Exterior . . . . . . . . . . . . . Cold-rolled steel,

powder coated

Insulation. . . . . . . . . . . . 2.0" (5.1cm) fiberglass

Exterior Door . . . . . . . . . Heated, triple pane,

tempered glass

Outer Door Gasket . . . . Molded vinyl

Electrical

3950 . . . . . . . . . . . . . . . 115V, 50/60 Hz, 10.0 FLA

(Operating range 90-125V

includes voltage fluctuations)

3951 . . . . . . . . . . . . . . . 230V, 50/60 Hz, 6.0 FLA

(Operating range 180-250V

includes voltage fluctuations)

Circuit Breaker/ . . . . . . . 3950: 15 Amps/2 Pole

Power Switch 3951: 8 Amps/2 Pole

Exterior Convenience . . 75 Watts maximum

Receptacle (matches cabinet voltage)

Interior Convenience . . . 230 Watts maximum

Receptacle (matches cabinet voltage)

Plug . . . . . . . . . . . . . . . . 115V: NEMA 5-15P Plug

230V: CEE 7/7 Plug

Alarm Contacts . . . . . . . Power interruption,

deviation of temp and CO

2

,
customer connections
through jack on back of unit

Data Outputs (opt.) . . . . RS-485, 0-1V, 0-5V, 4-20

milliamp (select one)

Dimensions

Exterior . . . . . . . . . . . . . 38.0"W x 80.0"H x 33.0"F-B

(96.5cm x 203.2cm x 83.8cm)

Interior. . . . . . . . . . . . . . 31.0"W x 60.0"H x 27.0"F-B

(78.7cm x 152.4cm x 68.6cm)

Weight

Net . . . . . . . . . . . . . . . . 500 lbs. (226.8 kg)

Shipping (Motor) . . . . . . 660 lbs. (299.4 kg)

Specifications are based on nominal voltages of 115V or 230V in ambients of 22°C to 25°C (71.6F to 77F).
Both units are UL Listed to United States and Canadian requirements and bear the CE Mark.

Accessories and Warranty

Accessories are customer installed unless indicated
otherwise. (Refer to page 4 for a description of the cell
roll system.)

Carboy Kit

Carboy Kit (No. 191596) makes it easy
to semi-automatically fill the reach-in.
The carboy, which can be mounted
on either side of the reach-in, can be
carried to the water source or filled
while mounted.

Kit includes an autoclavable 2 gallon
(7.8 liters) carboy, valve, adapter,
hose, and mounting bracket.

Shelves and Reinforced Shelf Systems

Stock No. Description

224139 Solid Stainless Steel Shelf with Channels
224155 Perforated Stainless Steel Shelf with Channels

Solid Stainless Steel Reinforced Shelf Systems –

224161 Adjustable Reinforced Shelf with Channels,

increases shelf load to 150 lbs. (68.0 kg)
maximum with shelf fully inserted and
stationary (maximum 2 per unit, not for
shakers), adjustable on 2.0" (5.1cm)
centers, can be removed for cleaning

1900005 Two Fixed Reinforced Shelves, provide extra

support for lab equipment (e.g., 2 Forma
Orbital Shakers, 250 RPM maximum each),
factory installed 1.0" and 30.0" (2.5cm and

76.2cm) above the floor, rubber isolators
instead of casters are installed on the
reach-in for added stability

Data Outputs (select one), factory installed

Stock No. Description

190523 RS-485 interface
190512 4-20 milliamp
190543 0-5V analog
190544 0-1V analog

Additional Accessories

Stock No. Description

190239 Lexan

®

Inner Door Kit, factory installed
190514 Door Lock, factory installed
190591 Door Glass Cover, factory installed

6", 7 Day Circular Chart Recorders –

201155 Single Pen, 115V
201156 Single Pen, 220V
201159 Dual Pen, 115V, 1 probe, temp/RH
201160 Dual Pen, 220V, 1 probe, temp/RH

190164 Additional Thru-Wall Access Port,

2.4" (6.1cm) I.D., factory installed

1900000 Built-In CO

2

Gas Guard, factory installed

6003950 IQ/OQ, MS Windows

®

-compatible document
disk for process customization and detailed
checklists to qualify unit setup and operation

Warranty

We confidently back our Forma Reach-In CO2Incubator with
a full one year parts and labor warranty.

© 2007 Thermo Fisher Scientific Inc. All rights reserved. All trademarks are the property of Thermo Fisher Scientific Inc. and its subsidiaries. Specifications, terms and pricing are subject to change.
Not all products are available in all countries. Please consult your local sales representative for details.

North America: USA/Canada [phone]

www.thermo.com/incubators

Europe: Austria [phone], Belgium [phone], Finland [phone], France [phone],
Germany national toll free 08001-536 376, Germany international [phone], Italy [phone], Netherlands [phone],
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Countries not listed: [phone] or [phone]

BRO-CECO2-FRIN-0407