Fisher Scientific Isotemp 600 Series User manual

Standard Incubators
600 Series
Operation Manual and Parts List
LT2068X1 Rev. 2(7006841)
© 2010 Fisher Scientific Inc.
All rights reserved
Printed in U.S.A.
Isotemp

Fisher ScientificFisher Scientific
MANUAL NUMBER LT2068X1 (7006841)
2 26697/SI-10360 11/23/10 Added Electrical Requirements note - includes 5 amp outlet (pg 2-1) ccs
1 SI-10360 6/29/10 Corrected model numbers above ccs
0 -- 4/27/10 Transfer to Marietta (was LT2068X1 3/9/09) ccs
REV ECR/ECN DATE DESCRIPTION By
Preface
Isotemp Standard Incubators i
Models covered in this manual
Model number Size Voltage
11-690-637D (6841) Medium 120V
11-690-638D (6843) Medium 240V
11-690-650D (6845) Large 120V
11-690-651D (6847) Large 240V
11-690-625D (6858) Small 120V
11-690-626D (6860) Small 240V

Fisher Scientificii Isotemp Standard Incubators Fisher Scientific
Preface
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 equipment performance. s
Caution All internal adjustments and maintenance must be performed by qualified service personnel. s
Material in this manual is for information purposes only. The contents and the product it describes are subject to
change without notice. Fisher Scientific makes no representations or warranties with respect to this manual. In
no event shall Fisher Scientific be held liable for any damages, direct or incidental, arising out of or related to the
use of this manual.
©2010 Fisher Scientific. All rights reserved.

Fisher Scientific Isotemp Standard Incubators iiiFisher Scientific
Preface
Important operating and/or maintenance instructions. Read the accompanying text carefully.
Potential electrical hazards. Only qualified persons should perform procedures associated with this
symbol.
Equipment being maintained or serviced must be turned off and locked off to prevent possible injury.
Hot surface(s) present which may cause burns to unprotected skin, or to materials which may be
damaged by elevated temperatures.
Marking of electrical and electronic equipment, which applies to electrical and electronic equipment
falling under the Directive 2002/96/EC (WEEE) and the equipment that has been put on the market
after 13 August 2005.
This product is required to comply with the European Union’s Waste Electrical & Electronic
Equipment (WEEE) Directive 2002/96/EC. It is marked with the WEEE symbol. Fisher Scientific has
contracted with one or more recycling/disposal companies in each EU Member State European
Country, and this product should be disposed of or recycled through them. Further information on
Fisher Scientific’s compliance with this directive, the recyclers in your country and information on
Thermo products will be available at www.fishersci.com.
4Always use the proper protective equipment (clothing, gloves, goggles, etc.)
4Always dissipate extreme cold or heat and wear protective clothing.
4Always follow good hygiene practices.
4Each individual is responsible for his or her own safety.

Fisher Scientificiv Isotemp Standard Incubators Fisher Scientific
Preface
Do You Need Information or Assistance
on Fisher Scientific Equipment?
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quotations. We can take your order and provide delivery information on major equipment items or
make arrangements to have your local sales representative contact your. Our products are listed on
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1-800-766-7000 Customer Service
www.fishersci.com To order online
Fisher Scientific Product Service Support can supply technical information about proper
setup, operation or troubleshooting of your equipment. We can fill your needs for replacement parts
or provide you with on-site service. We can also provide you with a quotation on our Extended
Maintenance Program for our products.
Whatever products you need or use, we will be happy to discuss your applications. If you are
experiencing technical problems, working together, we will help you locate the problem and, chances
are, correct it yourself...over the telephone without a service call.
When more extensive service is necessary, we will assist you with direct factory trained
technicians or a qualified service organization for on-the-spot repair. If your service need is covered
by the Fisher Scientific Products warranty, we will arrange for the unit to be repaired at our expense
and to your satisfaction.
Regardless of your needs, professional service technicians are available by telephone to assist
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Please call or fax us at:
1-800-766-7000 Customer Service
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International customers, please contact your local Fisher distributor.

Isotemp Standard Incubators vFisher Scientific
Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
Convenience Outlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
Power Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
Preparing the Incubator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
Alarm Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2
Display Offsets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
Replacing the Door Gasket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2
Replacing the Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3
Accessing the Electronics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3
Replacing the Solid State Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-4
Replacing the Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-4
Replacing the Control Thermocouple . . . . . . . . . . . . . . . . . . . . . . . .6-5
Replacing the Safety Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-5
Replacing the Door Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-6
Replacing the Glass Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-6
Adjusting the Door Cam . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-7
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1
Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-1
Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-1
Section 1
Section 2
Section 3
Section 4
Section 5
Section 6
Section 8
Section 7
Section 9

Isotemp Standard Incubators 1-1Fisher Scientific
Section 1 Introduction
Fisher Isotemp 600 Series Standard incubators are available in three sizes:
Small, Medium and Large. All incubators provide PID microprocessor
control at operating temperatures ranging from 30 (86°F) to 75°C (167°F).
Note Ambient temperature must be at least 5°C below operating
temperatures. s
In these incubators, fresh air enters through an air intake on the bottom of
the incubator, then is heated in a plenum below the chamber, finally
flowing into the incubator chamber itself in uniform flow patterns.
Exhaust air is vented through a port at the top of the incubator.
Temperature readouts and control parameters are shown in red LEDʼs.
Three additional LEDʼs indicate when the heater power is being applied,
an error condition is encountered, or the temperature is being set.
The Small incubator accommodates a maximum of three shelves. The
Medium incubator holds six shelves, and the Large incubator holds 10
shelves.
Isotemp incubators incorporate a variety of safety features. A safety backup
is built into the controller software. If the primary heater control fails, the
backup will maintain control at 3°C above the set point. An alarm LED
then indicates that the backup controller is operating the incubator. A
circuit breaker protects the incubator from power surges.

Isotemp Standard Incubators 2-1Fisher Scientific
Section 2 Specifications
Operating Range . . . . . . . . . . . . . . . . . .30° to 75°C
Note Operating temperature must be at least 5°C above ambient. s
Average Uniformity @ 37°C* . . . . . . . . . . . . .±0.5°C
Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.1°C
Control Sensitivity . . . . . . . . . . . . . . . . . . . . .±0.1°C
Recovery Time @ 37°C (door opened 30 seconds)
Small incubator . . . . . . . . . . . . . . . . . . .2.0 minutes
Medium incubator . . . . . . . . . . . . . . . . .2.0 minutes
Large incubator . . . . . . . . . . . . . . . . . . .3.0 minutes
*When tested per ASTM E-1292-94
Operating Environment
Temperature Range . . . . . . . . . . . . . . . .10° to 35°C
Humidity Range (non-condensing) . . 0% to 90% RH
Electrical Requirements (includes 5 amp outlet)
Small incubators
11-690-625D . . . . . . . .120V, 60 Hz, 7.2A, 864W
11-690-626D . . . .240V, 50/60 Hz, 6.1A, 1464W
Medium incubators
11-690-637D . . . . . . . .120V, 60 Hz, 7.2A, 864W
11-690-638D . . . .240V, 50/60 Hz, 6.1A, 1464W
Large incubators
11-690-650D . . . . . . . .120V, 60 Hz, 7.7A, 924W
11-690-651D . . . .240V, 50/60 Hz, 6.4A, 1536W

2-2 Isotemp Standard Incubators Fisher Scientific
Section 2
Specifications
Chamber Volumes
Small incubators . . . . . . . . . . . . . . . . . . . .2.5 cu ft
Medium incubators . . . . . . . . . . . . . . . . .3.8 cu ft
Large incubators . . . . . . . . . . . . . . . . . . . .5.0 cu ft
Chamber Dimensions (W x D x H)
Small incubators . . . . . . . . . . . . .18 x 18 x 13.5 in
Medium incubators . . . . . . . . . . . .18 x 18 x 20 in
Large incubators . . . . . . . . . . . . .18 x 18 x 26.5 in
Environmental Conditions
Operating: 17°C to 27°C; 20% to 80% RH, non-condensing.
Installation Category II (overvoltage) in accordance with IEC 664.
Pollution Degree 2 in accordance wth IEC 664.
Altitude Limit: 2,000 meters.
Storage: -25°C to 65°C, 10% to 85% relative humidity (RH)

Isotemp Standard Incubators 3-1Fisher Scientific
Section 3 Installation
Choose a location for the incubator that will provide an area of
approximately 30 inches by 30 inches. Allow at least 2” of open space on
both sides and back of unit (six inches if combustible materials). The
bench or table selected must be capable of supporting at least 120 lbs. for
the Small incubators, 130 lbs. for the Medium incubators, or 135 lbs. for
the Large incubators. Appropriate electrical power must be available.
Locate the incubator within three feet of the power outlet so that no
extension cord is required.
Note If the equipment is not used in the manner specified by the
manufacturer, the protection provided by equipment may be impaired. s
Fisher Scientific Isotemp® Incubators are shipped in a single carton. After
unpacking, locate each item shown in the list below. Report any missing
items, by name and part number, to your Fisher Scientific distributor. In
the event of shipping damage, retain the carton and packing material and
file a claim with the final carrier.
Item
Shelves
Small and Medium - one provided
Large - two provided
Shelf Supports
Small and Medium - two provided
Large - four provided
Unpacking

3-2 Isotemp Standard Incubators Fisher Scientific
Section 3
Installation
To prepare the incubator for operation, perform the following procedures:
1. Install the shelf(s).
2. Make certain all packing material has been removed from incubator
chamber.
3. Connect the line cord to an appropriate electrical outlet.
4. The incubator is now ready for operation. No preliminary adjustments
are required. Depending on the customer application and customer
laboratory procedures, an initial calibration may be done at this point.
Note The incubator received a single point calibration at 120°C ± 2°C at
the factory. If greater accuracy is required the user may require a standard
laboratory calibration. See Calibration section. s
Caution See data plate on incubator for voltage, current and line frequency
specifications. Check that the power requirements of the incubator will not
overload the circuit. s
The 600 Series incubators feature a front panel mounted power switch
which is a combination power switch and circuit breaker, eliminating the
need for separate fusing. The circuit breaker will interrupt power in the
event of an incubator heater malfunction.
Press in the I (upper) half of the rocker-type power switch to
turn the incubator on. Press in the 0 (lower) half to turn off
incubator power.
To reset the breaker, first press the switch into the Off position,
then return it to the On position.
The 600 Series incubators feature a convenience electrical outlet located
inside the incubator, at the lower right of the back panel. This outlet is
rated at the same voltage as the incubator itself and is limited to a
maximum current of 5A for all incubators. If the current limit is exceeded,
the circuit breaker will trip. For safety, the integrity of the electrical ground
should always be maintained.
Preparing the
Incubator
Power Switch
Convenience Outlet
On
Off

Isotemp Standard Incubators 4-1Fisher Scientific
Section 4 Controls
The following sections briefly describe the locations and functions of
various display fields and keypad controls. More detailed descriptions are
provided, when required, in the operation sections of this manual.
The 600 Series controller features two bright, one-half inch, 7-segment
LED displays used in setting up the incubator program or reading
incubator temperature. Two smaller LEDs indicate, respectively, an alarm
condition or when power is being applied to the incubator heaters. Each
display field is discussed separately below.
Temperature Display In the normal operating mode, shows the current
incubator temperature. During programming, indicates the incubator set
temperature target.
Heat Indicator Lights when power is being supplied to the incubator
heater.
Alarm Indicator Lights if the actual incubator temperature exceeds the
alarm temperature. The alarm temperature is factory-adjusted to be 5°C
above the set temperature.
Program Indicator Lights when the control temperature is being set.
Figure 4-1. Display Fields

4-2 Isotemp Standard Incubators Fisher Scientific
Section 4
Controls
Keypad The 600 Series incorporates a four-key, tactile keypad. The function of
each key is discussed individually below. Refer to Figure 4-1 on the
previous page.
Pressing the MENU Key will cause display to show CAL. Then pressing
SET Key will display calibration.
Pressing INCREASE Key while holding down the SET Key increases the
incubator set temperature, as indicated on the temperature display.
Pressing the DECREASE Key while holding down the SET Key decreases
the incubator set temperature, as indicated on the temperature display.
Pressing the SET Key causes the display to show the set temperature. Used
with INCREASE Key and DECREASE Key to change the set temperature.
With MENU Key to access entry of a temperature display offset
(calibration feature).

Isotemp Standard Incubators 5-1Fisher Scientific
Section 5 Operation
In Control mode operation, the incubator maintains a set temperature
until that set temperature is changed. The Actual and Set Displays will
indicate current chamber temperature and the temperature set point,
respectively. To set a temperature and initiate Control mode operation,
perform the following
1. Place the power switch in the ON position. All 8s will flash as a test of
the display.
2. Press and hold the SET Key.
3. Observe the set temperature in the Set Display window.
4. To decrease the set temperature, press the DECREASE Key while
holding the SET Key.
5. To increase the set temperature, press the INCREASE Key while
holding the SET Key.
6. When the desired set temperature is shown, release the INCREASE
OR DECREASE Key. Finally, release the SET Key. The incubator
automatically begins to control at the set temperature.
Note To rapidly increase or decrease the set temperature, press and hold
the appropriate key. To slowly increment or decrement the set temperature
1° at a time, press and immediately release the key. s
Note Upon initial heat up to temperature, the over range alarm indicator
light may illuminate briefly (several minutes) until the temperature
stabilizes at the set point. The incubator temperature should be allowed to
stabilize prior to loading samples. s

5-2 Isotemp Standard Incubators Fisher Scientific
Section 5
Operation
Before operating the incubator, always observe the following Safety
Precautions:
• This unit is not explosion proof. Do not use in the presence of
flammable or combustible materials; fire or explosion may result. Unit
contains components, which may ignite such materials.
• Fumes and spillage from acidic solutions cause corrosion of the
stainless steel chamber and other components. Care should be taken to
maintain a neutral pH at all times.
• Wear insulated gloves
• Use tongs
• Never stand in front of an open incubator
• Use safety goggles
The 600 Series controllers feature a deviation alarm which alerts the
operator and interrupts heater power whenever the actual incubator
temperature differs from the set temperature by more than 3°C. This set
limit cannot be adjusted by the operator.
If the actual temperature exceeds the alarm limit, the alarm indicator LED
will light and the Display will flash “EEE.”
The reference point for the alarm is the set temperature. Any change in the
set temperature will cause a corresponding shift in the alarm temperature.
Example:
If the set temperature is 40°C, the alarm will trip at 43°C. If the set
temperature is changed to 50°C, the alarm will follow the set temperature
and trip at 53°C.
Changing the set temperature to a value more than 3°C below the present
incubator temperature, will trip the alarm. Power is removed from the
heater when an alarm condition occurs.
As an example:
An experiment was being run at 50°C. The experiment finished and
another researcher needed to run an experiment at 40°C. The researcher
reset the set point to 40 and the unit went into alarm. The researcher,
knowing this was a normal operation, allowed the unit to cool and stabilize
at 40°C. Just below 43°, the unit alarm LED went off and the display
resumed normal operation.
Safety Precautions
Alarm Limits

The 600 Series controllers permit the operator to select a display offset
temperature. With a display offset entered, the temperature displayed will
be the actual incubator temperature (measured at the control
thermocouple) plus or minus the display offset selected. Functionally, the
offset feature permits the operator to measure and calibrate such that the
display will indicate the temperature at a specific point or zone within the
incubator.
To enter a display offset, perform the following steps:
1. Press the MENU Key, the display will indicate –.
2. To view the present offset value, press and hold the SET Key.
3. To change the display offset, press and hold the SET Key. Press the
INCREASE Key or DECREASE Key until the display indicates the
desired offset.
4. Release the SET Key.
5. Press MENU Key Once to return to normal temperature control.
Example:
The displayed temperature is the result of algebraically adding the actual
temperature to the offset value. Thus, if an offset value of –3° is being
used, a measured temperature of 50° will be displayed as 47°.
Isotemp Standard Incubators 5-3Fisher Scientific
Section 5
Section title
Display Offsets

Section 6 Service
The following sections describe procedures for servicing the 600 Series
incubators. The procedures, Replacing the Door Gasket, Replacing the
door handle, and adjusting the door handle may be performed by most
users. However, all other service procedures involve possible exposure to
line voltage. Only qualified service personnel should undertake these
procedures. The second section, Accessing the Electronics Compartment,
describes procedures required for subsequent service sections and is
referenced by these later sections when required.
Caution Service procedures involve exposure to line voltage and should be
performed only by qualified service personnel. Disconnect incubator from
power source before attempting repairs. s
Caution Only factory authorized components should be used for all
repairs. Failure to use factory authorized replacement components will void
warranty and could result in unit malfunction and or hazardous operating
conditions. s
Caution Allow incubator to cool to ambient temperature before attempting
repair. s
For assistance, call Technical Services.
1. Always unplug unit prior to cleaning
2. During cleaning, take precautions to prevent cleaning agents from
contacting electrical components.
3. Use a mild, non-abrasive cleaner (i.e. damp cloth and mild soap) to
clean all normally accessible surfaces.
4. Make sure unit is dry before re-connecting to power source.
Isotemp Standard Incubators 6-1Fisher Scientific
Cleaning