Labnet 311D Quick guide

HIGH PERFORMANCE
INCUBATORS
MODELS: 311D, 611D
INSTALLATION AND INSTRUCTION MANUAL

2
TABLE OF CONTENTS
SECTION 1.0 INTRODUCTION
SECTION 2.0 WARRANTY
SECTION 3.0 SPECIFICATIONS
SECTION 4.0 RECEIVINGAND INSPECTION
SECTION 5.0 INSTALLATION
SECTION 6.0 CONTROLSOVERVIEW
SECTION 7.0 OPERATION
SECTION 8.0 CLEANINGAND ROUTINECARE
SECTION 9.0 SERVICE AND TROUBLESHOOTING
SECTION 10.0 PARTS LIST
WIREDIAGRAM
REV. 3/2005
4861281
These units are high performance incubators for professional, industrial or educational
use where the preparation or testing of materials is done at approximately atmospheric
pressure and no flammable, volatile or combustible materials are being heated. These
units are not intended for hazardous or household locations or use.

Section
1
INTRODUCTION
The Labnet Incubators have been designed for general purpose incubations (<65ºC), as
well as those applications requiring higher temperatures (up to 65ºC).
Temperature within the incubator is controlled and regulated by a microprocessor.
Temperature is set and displayed digitally. An independent, user settable safety
thermostat protects samples and the incubator from overheating in the unlikely event of a
primary controller failure.
A fan, located in the chamber, assists in providing an exceptionally uniform environment.
The fan also speeds temperature recovery after the door of the incubator has been
opened. For applications where the flow of air in the chamber is undesirable, the fan may
be switched off.
The interiors of the 311D and 611D incubators are constructed of stainless steel. The
exteriors are made of cold rolled steel to resist corrosion and provide strength. The door of
the incubator consists of two parts. The inner door is glass to allow for viewing the
chamber contents without disrupting the temperature environment. The outer door is solid
and insulated. It is also heated to help in maintaining the chamber temperature. The
heated door prevents condensation from forming on the inner glass viewing door.
Your satisfaction and safety require a complete understanding of this unit. Read
this instruction manual thoroughly before attempting to operate the incubator. All
operators should be given adequate training before using this incubator. Note that
any alterations or modifications to the incubator may void the warranty.
Should any questions arise concerning the Labnet Incubators, please call Labnet
International’s Customer Service Department at 888 522-6381, Monday through Friday,
8:30am to 5:00pm, EST.
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Section
2
WARRANTY
Labnet International, Inc. guarantees that the Model 311/611 Incubator that you have
received meets its published specification. The incubator is guaranteed to be free of
defects in materials and workmanship for a period of one year from the date of purchase.
This guarantee is valid only if the unit has been used in accordance with the instructions in
this manual and for its intended purpose. Labnet International, Inc. shall not be responsible
for consequential damages or damages resulting from the abuse or misuse of this
equipment. Labnet International’s liability shall be limited to the repair or replacement of the
unit or refund of the purchase price, at Labnet International’s discretion.
For technical service, contact Labnet International’s Service Department at 888 522-6381.
Labnet International, Inc. reserves the right to alter the specification of the incubator without
notice. This allows the incorporation of improvements as they are developed.
Please fill in the following information. This information will be required in the event that
service becomes necessary. The serial number is found on the data plate located on the
back of the unit.
Serial number _______________________
Date of purchase _____________________
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Section
3
SPECIFICATIONS
Temperature Range Ambient +5to 95C
Temperature Uniformity
311D +0.2@ 37C
611D +0.25@ 37C
Temperature Accuracy +0.2
Temperature Set / Display Digital / digital
Temperature Control Microprocessor
Overtemperature Safety Independent, settable
Interior Outlet 1AMP
Door Inner – glass
Outer - solid, heated
Chamber Volume
311D 2.75 cu ft
611D 6.0 cu ft
Exterior Construction Cold rolled steel
Interior Construction Stainless steel
Exterior Dimensions
311D 27W x 20D x 29"H
611D 31W x 26D x 34"H
Interior Dimensions
311D 17W x 14D x 20"H
611D 21W x 20D x 25"H
Standard Accessories Adjustable leveling feet
2 Steel Shelves
Shelving Points
Voltage Requirements 120V / 60Hz
Power / Current
311D 800W/6.7A
611D 850W/7.1A
5

Section
4
RECEIVING AND INSPECTION
4.1 Inspection: The carrier, when accepting shipment, also accepts responsibility
for safe delivery and is liable for loss or damage. On delivery, inspect for visible
exterior damage, note and describe on the freight bill any damage found, and
enter your claim on the form supplied by the carrier.
4.2 Inspect for concealed loss or damage on the unit itself, both interior and exterior.
If any, the carrier will arrange for official inspection to substantiate your claim.
4.3 Return Shipment: Save the shipping crate until you are sure all is well. If for any
reason you must return the unit, contact Labnet International, Inc. for authorization
and supply the data plate information.
4.4 Accessories: Verify that all of the equipment indicated on the packing slip is
included with the unit. Carefully check all packaging before discarding. This unit is
equipped with 2 large shelves, 8 shelf clips and 4 leveling feet. If any of these
items is missing, contact Labnet International’s Customer Service Department
immediately.
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Section
5
INSTALLATION
Local city, county, or other ordinances may govern the use of this equipment. If you have
any questions about local requirements, please contact the appropriate local agency.
Installation may be performed by the end user.
Under normal circumstances this unit is intended for use indoors, at room temperatures
between 5and 40C, at no greater than 80% Relative Humidity (at 25C) and with a
supply voltage that does not vary by more than 10%. Customer service should be
contacted for operating conditions outside of these limits.
5.1 Location: In selecting a location, consider all conditions that might affect
performance, such as heat from radiators, ovens, autoclaves, etc. Avoid direct
sun, fast-moving air currents, heating/cooling ducts and high-traffic areas. Allow a
minimum of 5cm between the unit and walls or partitions that might obstruct free
airflow.
5.2 Power Source: Check the data plate for voltage, cycle, phase and ampere
requirements. If matched to your power source, plug the power cord into a
grounded outlet. VOLTAGE SHOULD NOT VARY MORE THAN 10% FROM THE
DATA PLATE RATING. These units are intended for 50/60Hz applications. A
separate circuit is recommended to preclude loss of product due to overloading or
circuit failure. NOTE: Electrical supply to the unit must conform to all national and
local electrical codes.
5.3 Lifting / Handling: These units are heavy and care should be taken to use
appropriate lifting devices that are sufficiently rated for these loads. Units should
only be lifted from their bottom surfaces. Doors, handles and knobs are not
adequate for lifting or stabilization. The unit should be completely restrained from
tipping during lifting or transport. All moving parts, such as shelves and trays
should be removed and doors need to be positively locked in the closed position
during transfer to prevent shifting and damage.
5.4 Leveling: The unit must sit level and solidly. Leveling feet are supplied and must
be installed in the four holes in the bottom corners of the unit. With the feet installed
and the unit standing upright, each foot can be raised by turning it in a
counterclockwise direction. Adjust the foot at each corner until the unit stands level
and solid without rocking. If the unit must be moved, turn the leveling feet all the
way clockwise to prevent damage while moving.
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8
5.5 Cleaning: The unit chamber should be cleaned and disinfected before use.
Remove all of the interior parts, and clean thoroughly with a disinfectant that is
appropriate to your application. DO NOT use chlorine-based bleaches or abrasives
as this will damage the chamber interior. Regular periodic cleaning is required.

Section
6
CONTROLS OVERVIEW
6.1 Power Switch: The main power ON/OFF switch controls all power to the unit. It
must be on before any systems are operational. The green switch will be lighted
when ON.
6.2 Main Temperature Control: This control consists of the digital display and
Up/Down buttons for inputting set point temperatures and calibration.
6.3 Safety Thermostat: The Safety is completely independent of the Main Controller.
The Safety guards against any failure of the Main Controller that would allow
temperature to rise past set point. If temperature rises to the safety set point, the
Safety takes control of the heating element and allows continued use of the
incubator until the problem can be resolved or service can be arranged.
6.4 Fan Switch: This operates the turbo fan inside the chamber for fast heat up times
and recovery. The switch is lighted when activated.
6.5 Safety Light: This pilot light comes ON when the Safety Thermostat is activated.
Under normal operating conditions this pilot light should never be on.
6.6 Circuit Breaker: The breaker is manually resettable and offers protection against
power source variations. Protection is in addition to the automatic high-temperature
limit designed into the heating element itself. This is located at the rear of the unit.
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Section
7
OPERATION
7.1 Check power supply against unit serial plate. They must match.
7.2 Plug service cord into the electrical outlet. Push power switch ON, and turn the
Safety Thermostat to its maximum position, clockwise.
7.3 Set Main Temperature Control: Enter desired set point temperature. To enter set
point mode on the control, press either the Up or Down button one time. The digital
display will start to blink, going from bright to dim. While blinking, the digital display
is showing the set point. To change the set point, use the Up and Down buttons. If
the buttons are not pressed for five (5) seconds, the display will stop blinking and
will read the temperature of the unit. Note that the Safety Thermostat should be
turned to its maximum position, until the unit has stabilized at desired set point
temperature. Allow the incubator at least 24 hours stabilize.
7.4 Calibration: The Main Temperature Controller was calibrated at the factory at
37C; however, it is recommended that calibration is done once the unit is installed
in its working environment and has been stable at set point for several hours.
Place a certified reference thermometer in the chamber. Be certain the
thermometer is not touching any shelving. Allow the temperature to stabilize again
until the thermometer reads a constant value for one hour. Compare the digital
display with the reference thermometer. If there is an unacceptable difference, put
the display into calibration mode by pressing both the Up and Down arrow pads at
the same time until the two outside decimal points begin to flash. While the
decimal points are flashing the display can be calibrated by pressing the Up or
Down arrow pads until the display reads the correct value. Allow the incubator
temperature to stabilize again, and recalibrate if necessary.
7.5 Set Safety Thermostat: As mentioned in step 7.3, the Safety Thermostat should
be initially set to its maximum position, to allow the unit to stabilize. Once the
incubator is stabile at the desired set point, turn the Safety Thermostat
counterclockwise until the Safety Light turns on. Next, turn the Thermostat
clockwise just until the Safety Light turns off. Then turn the Thermostat clockwise
two (2) of its smallest divisions on its scale past the point where the Safety Light
went out. This will set the Safety Thermostat at approximately 1oC above main
temperature set point.
7.6 Fan Switch: Turn the fan switch on during warm up cycle for faster heat up time.
Also, this switch may be used for rapid recovery. Once the unit has reached a
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11
stable temperature the fan may be turned off.

CLEANING AND ROUTINE CARE
Section
8
Both the interior and exterior of the incubator should be wiped down with a soft cloth
periodically to prevent any build-up of dust and grime.
Any spills in the incubator should be cleaned immediately. Cleaning may be performed
with a soft, damp cloth. If required, the chamber may be disinfected. Before using any
type of disinfectant or cleaning agent in the incubator, check with the product manufacturer
to ensure that the product will not damage the stainless steel interior of the incubator. After
cleaning the incubator, rinse the cleaned surface with a damp cloth, using water only. Dry
with a clean cloth.
Do not pour liquid into the chamber or immerse the unit in liquid. DO NOT use chlorine-
based bleaches or abrasives as these will damage the stainless steel.
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SERVICE AND TROUBLE-SHOOTING
Section
9
TEMPERATURE
Temp-1 Temperature too high-
display and reference
thermometer don’t
match
1/ Controller failed on – call Customer Service.
2/ Wiring error – call Customer Service.
Temp-2 Display reads "HI" or
"400"+
Probe is unplugged or broken – Call Customer Service
Temp-3 Chamber temperature
spikes over set point
and then settles to set
point
Recalibrate – see section 7.4
Temp-4 Temperature too low-
display and reference
thermometer don’t
match
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1/ Safety set too low – see section 7.5.
2/ Controller set too low – see section 7.3.
3/ Unit not recovered from door opening – wait for
display to stop changing.
4/ Unit not recovered from power failure or being
turned off – incubators will need 24 hours to warm up
and stabilize.
5/ Element failure – Call Customer Service
6/ Controller failure – confirm with front panel lights
that controller is calling for heat.
7/ Safety failure – confirm with front panel lights that
Safety is operating correctly.
8/ Wiring problem – Call Customer Service
9/ Loose connection – call Customer Service.
Temp-5 Display reads "LO"
1/ If ambient temperature is lower than range of unit –
compare set points and ambient temperature to rated
specifications
2/ Sensor is plugged in backwards – call Customer
Service.
Temp-6 Unit will not heat over
a temperature that is
below set point
1/ Confirm that fan is moving
2/ Confirm that set point is set high enough
Temp-7 Unit will not heat up at
all
1/ Do all controller functions work?
2/ Is the Safety set high enough? – for diagnostics,
should be fully clockwise with the pilot light never on.
3/ Has the fuse/circuit breaker blown?
Temp-8 Indicated chamber
temperature unstable
1/ Is fan working? – remove control side body panel
and verify movement of cooling fan.
2/ Is ambient radically changing – either door opening
or room airflow from heaters or air conditioning ? –
stabilize ambient conditions.
3/ Sensor miss-located, damaged or wires may be
damaged - check mounts for control and Safety
sensors, then trace wires or tubing between sensors
and controls.
4/ Calibration sensitivity – call Customer Service.
5/ Safety set too low – be sure that its setting is more
than 5 degrees over desired set point; check if pilot
light is on continuously; turn controller knob
completely clockwise to see if problem solved then
follow instructions in section 7.5 for correct setting.
6/ Electrical noise – remove nearby sources of RFI

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including motors, arcing relays or radio transmitters.
7/ Bad connection on temperature sensor or faulty
sensor – check connectors for continuity and
mechanical soundness while watching display for
erratic behavior; check sensor and wiring for
mechanical damage.
8/ Bad connections– check connectors for mechanical
soundness and look for corrosion around terminals or
signs of arcing or other visible deterioration.
Temp-9 Will not maintain set
point
1/ Assure that set point is at least 5 degrees over
ambient.
2/ See if ambient is fluctuating – check for adjacent
open doors or HVAC duct openings, stabilize ambient
conditions.
Temp-10 Display and reference
thermometer don’t
match
1/ Calibration error – see section 7.4.
2/ Temperature sensor failure – evaluate if pilot light is
operating correctly.
3/ Controller failure – evaluate if pilot light is operating
correctly.
4/ Allow at least 24 hours to stabilize at set point
temperature.
5/ Verify that reference thermometer is certified.
Temp-11 Can't adjust set points
or calibration
1/ Turn entire unit off and on to reset.
2/ If repeatedly happens, call Customer Service.
Temp-12 Calibrated at one
temperature, but not at
another
This can be a normal condition when operating
temperature varies widely. For maximum accuracy,
calibration should be done at or as close to the set
point temperature as possible.
MECHANICAL
Mech-1 Door not sealing
1/ Check physical condition of gasket.
2/ Tighten door latch till it pulls glass in.
3/ Assure that gasket is in original location.
4/ Adjust hinge blocks or twist the door.
5/ Confirm that unit has not been damaged and body
is square.
Mech-2 Motor doesn't move

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1/ If shaft spins freely: check connections to motor
and check voltage to motor.
2/ If shaft rubs or is frozen, relieve binding and retest.
Mech-3 Motor makes noise
1/ If noise is from the motor, tap the top of motor shaft
with ball peen hammer. Remove back panel to access
fan motor.
2/ If the sound gets worse, tap the other end of the
shaft – avoiding touching the fan blade.
3/ If there is no change, call Customer Service.
4/ If noise is from shaft or fan blade, realign shaft.

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OTHER
Other-1 Controller on at all
times - "locked-up"
1/ Turn unit off and on to reset.
2/ If cannot change any condition on the front panel,
call Customer Service.
Other-2 Front panel displays
are all off
Check for wire damage.
Other-3 Unit or wall fuse/circuit
breaker is blown
1/ Check wall power source.
2/ Compare current draw and compare to specs on
data plate.
3/ See what other loads are on the wall circuit.
Other-4 Unit will not turn on
1/ Check wall power source.
2/ Check fuse/circuit breaker on unit or in wall.
3/ See if unit is on, e.g., fan or heater, and just
controller is off.
4/ Check all wiring connections, especially around the
on/off switch.
Other-5 Unit is smoking – Out
of box
This is not an uncommon occurrence when first
operating new units. Put unit under vent and run at
full power for one hour. – smoking is normal during
first cycle to temperature.
Other–
6 Contamination in
chamber
1/ See cleaning procedure in see section 8.0.
2/ Develop and follow standard operating procedure
for specific application; include definition of cleaning
technique and maintenance schedule.
If following the troubleshooting suggestions does not solve the problem, contact Labnet
International’s Service Department at 888 522-6381, Monday through Friday, 9:00am –
5:00pm, EST.

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PARTS LIST
Description 120V 220V
Blower Motor I-104100 I-210001
Circuit Breaker I-1100505 I-1100505
Convenience Outlet I-100020 I-101483
Door Element I-100019 I-100019
Door Switch I-104103 I-104103
Heating Element I-200114 I-120071
Light Socket I-104098 I-104098
MP Control I-1750692 I-1750693
On / Off Switch I-102025 I-102025
Power Cord I-100014 I-101990
Safety Control H9200-37 H9200-37
Safety on Pilot (Green) I-102022 I-2102022
Turbo Fan Motor I-4880508 I-4880507