User Manual - Forma - 3029, 3039 - Countertop Incubator 10 Cu.ft. - 7013029[1] Copy

8/17/2019 User Manual - Forma - 3029, 3039 - Countertop Incubator 10 Cu.ft. - 7013029[1] Copy

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Model: 3029 and 3039

Countertop Incubator

10 cu. ft capacity

Operating and Maintenance Manual

Manual No: 7013029


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Models 3029 and 3039_____________________________________________________________________________________

Read This Instruction Manual.

Failure to read, understand and follow the instructions inthis manual may result in damage to the unit, injury to operat-

ing personnel, and poor equipment performance.

CAUTION! All internal adjustments and maintenance must

be performed by qualified service personnel.

Refer to the serial tag on the back of this manual.

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 repre-

sentations 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 NUMBER 7013029


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Models 3029 and 3039_____________________________________________________________________________________

Table of Contents

Section 1 - Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 - 1

1.1 Preliminary Inspection . . . . . . . . . . . . . . . . . . . . . . . .1 - 1

1.2 Shipping Claims . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 - 1

1.3 Responsibility for Shipping Damage . . . . . . . . . . . . .1 - 1

Section 2 - Basic Set-Up Procedure . . . . . . . . . . . . . . . .2 - 1

2.1 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 1

2.2 Leveling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 1

2.3 Drain Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 1

2.4 Water Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 1

2.5 CO2 Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 1

2.6 Door Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 1

2.7 Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 1

2.8 Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 1

2.9 Stabilization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 1

2.10 Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 1

2.11 Stabilization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 1

2.12 CO2

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 12.13 Door Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 1

Section 3 - Specifications . . . . . . . . . . . . . . . . . . . . . . . .3 - 1

Section 4 - General Description . . . . . . . . . . . . . . . . . . .4 - 1

4.1 The Model 3029/3039 CO2 Incubator . . . . . . . . . . . .4 - 1

4.2 The CH/P Control System . . . . . . . . . . . . . . . . . . . . .4 - 1

4.3 Standard Features of the 3029/3039 . . . . . . . . . . . . . .4 - 1

4.4 Auxiliary Equipment . . . . . . . . . . . . . . . . . . . . . . . . . .4 - 1

Section 5 – Physical Installation . . . . . . . . . . . . . . . . . . .5 - 1

5.1 Leveling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 1

5.2 Attaching the Drain Lines . . . . . . . . . . . . . . . . . . . . . .5 - 1

5.3 Connect to Power . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 1

5.4 Shelf Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 1

Section 6 - Power Module . . . . . . . . . . . . . . . . . . . . . . . .6 - 1

6.1 Main Power Switch and Indicating Light . . . . . . . . . .6 - 16.2 Temperature Limit Safety Thermostat . . . . . . . . . . . . .6 - 1

6.3 Door Ajar Indicating Light . . . . . . . . . . . . . . . . . . . . .6 - 1

6.4 Door Heaters and Control Potentiometer . . . . . . . . . .6 - 1

Section 7 - Temperature Module . . . . . . . . . . . . . . . . . .7 - 1

7.1 Temperature Power Switch and Indicating Light . . . .7 - 1

7.6 Temperature Calibration Procedure . . . . . . . . . . . . . .7 - 1

Section 8 - Humidity Module . . . . . . . . . . . . . . . . . . . . .8 - 1

8.1 Humidity Power Switch and Indicating Light . . . . . .8 - 1

8.2 CH/P Humidity Controller and Digital Display . . . . .8 - 1

8.3 Humidity Indicating Light . . . . . . . . . . . . . . . . . . . . .8 - 1

8.4 Setting the Humidity . . . . . . . . . . . . . . . . . . . . . . . . . .8 - 1

8.5 Setting Up the Humidification System . . . . . . . . . . . .8 - 1

8.6 Humidity Reservoir and Probe Check . . . . . . . . . . . .8 - 1

8.7 Humidity Probe Placement . . . . . . . . . . . . . . . . . . . . .8 - 18.8 Humidity Calibration Check and Procedure . . . . . . . .8 - 2

Section 9 - Carbon Dioxide . . . . . . . . . . . . . . . . . . . . . . .9 - 1

9.1 CO2 Power Switch and Indicating Light . . . . . . . . . .9 - 1

9.2 CH/P CO2 Controller and Digital Display . . . . . . . . .9 - 1

9.3 Audible CO2 Alarm and Alarm Indicating Light . . . .9 - 1

9.4 Alarm Silence Push Button . . . . . . . . . . . . . . . . . . . . .9 - 1

9.5 Alarm Disable Switch . . . . . . . . . . . . . . . . . . . . . . . . .9 - 1

9.6 CO2 Inject Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 - 19.7 Sample Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 - 1

9.8 Sealing the Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . .9 - 1

9.9 CO2 Standardization Adjustment . . . . . . . . . . . . . . . .9 - 1

9.10 Connecting the CO2 Source . . . . . . . . . . . . . . . . . . . .9 - 1

911 Setting the CO2 Content . . . . . . . . . . . . . . . . . . . . . . .9 - 2

9.12 CO2 Standardization Check . . . . . . . . . . . . . . . . . . .9 - 2

9.13A CO2 Standardization Procedure . . . . . . . . . . . . . . .9 - 2

9.13B Recommended CO2 Standardization Procedure . . .9 - 2

9.14 CO2 Calibration Check and Procedure . . . . . . . . . . .9 - 2

Section 10 - Preventive Maintenance . . . . . . . . . . . . . . .10-1

10.1 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-1

10.2 Sterilization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-1

Section 11 - Troubleshooting . . . . . . . . . . . . . . . . . . . . . .11-1

11.1 3029 Troubleshooting Guide . . . . . . . . . . . . . . . . . . .11-1

11.2A Temperature Troubleshooting Overview . . . . . . . .11-1

11.2A Temperature System Troubleshooting Overview . .11-111.3A Humidity System Troubleshooting Overview . . . .11-1

11.3B Humidity System Troubleshooting Guide . . . . . . .11-2

11.4A CO2 System Troubleshooting Overview . . . . . . . . .11-1

11.4B CO2 System Troubleshooting Guide . . . . . . . . . . . .11-2

Section 12 - Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-1


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Section 1 - Inspection

1.1 Preliminary Inspection

Immediately upon receipt of the equipment, carefully

examine the shipment for loss or damage. Make note of any

visible damage. Unpack the shipment and inspect both interior

and exterior for any in-transit damage.

1.2 Shipping Claims

If any loss or damage is discovered, note any discrepancies

on the delivery receipt and call the delivering carrier and

request that their representative perform an inspection. Do not

discard any of the packing material and do not move the ship-

ment from the receiving area.

1.3 Responsibility for Shipping Damage

For products shipped F.O.B. Marietta, Ohio, the responsi-

bility of Forma Scientific, Inc. ends when the merchandise is

loaded onto the carrier’s vehicle.

On F.O.B. Destination shipments, Forma Scientific and the

carrier’s responsibility ends when your Receiving Department

personnel sign a free and clear delivery receipt.

Whenever possible, Forma Scientific will assist in settling

claims for loss or in-transit damage.

Models 3029 and 3039 ________________________________________________________________________ Inspection


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2.8 Temperature (Reference Section 7)

Push in temperature set button and adjust setscrew untilthe desired temperature setpoint appears on the display.

Remove screwdriver (knob at left of sample port). Turn

temp power switch on.

2.9 Stabilization

Shut both doors and allow the incubator to run for 1

hour.

2.10 Humidity (Reference Section 8)

Turn RH power switch on. Push in the humidity knob

and use the coarse and fine adjustments to obtain the

desired setpoint.

2.11 Stabilization

Shut both doors and allow the incubator to run for 6 to 8

hours or overnight.

2.12 CO2 (Reference Section 9)

Turn the CO2 power switch on. Set the display to ‘00.0’

by using the standardization adjustment, and use thecoarse and fine adjustments to obtain the desired set-

point. Release the knob. Turn on the CO2 at the source.

Allow the incubator to stabilize for 30 minutes. Check

the CO2 reading with a Fyrite. Adjust the display to

match the Fyrite reading by using the standardization

adjustment.

2.13 Door Heater (Reference Section 6.4)

If there is condensation of the inner glass door, adjust

the door heater to 10.

Models 3029 and 3039_________________________________________________________________Basic Set-Up Procedure

Section 2 - Basic Set-Up Procedure

2.1 Unpacking (Reference Section 1)

Unpack the incubator and inspect for damage.

Remove and discard the aluminum shipping plate from

the front of the incubator.

2.2 Leveling (Reference Section 5.1)

Locate the cabinet and level, allowing 1/2” clearance

beneath the cabinet.

2.3 Drain Lines (Reference Section 5.2)

Remove the valve shipped inside the cabinet and install

in the drain line in place of the pipe plug. Attach tubing

to thevalve

.The overflow drain should be trapped and piped to an

open drain and the trap filled with water.

2.4 Water Supply (Reference Section 8.5)

Remove the floor section from the incubator. Fill the

floor pan with 1-1/2 gallons of distilled water.

Fill the water bottle and allow the floor pan to fill. Thewater level should be 1/8” to 3/8” from the top of the

overflow.

Position the humidity probe so the tip is submerged 1/8”

to 1/16” below the surface of the water.

2.5 CO2 Supply (Reference Section 9.10)

Connect a gaseous CO2 supply to the compression fittingon the back of the unit. Set the regulator to 4 to 5 PSIG.

DO NOT turn on the CO2 supply at this point.

2.6 Door Heater (Reference Section 6.4)

T h d h k b ( b h b l ) h


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Section 3 - Specifications

a. Capacity and Weight

Chamber Capacity: 10 cu. ft. (285 liters)

Shelf Capacity: 24 with 97 sq. ft. available space

Shipping Weight: 275 lbs (117kg)

b. Dimensions

Exterior: 40.0”W x 38.5”H x 26.0”F-B

(102cm x 98cm x 66cm)

Interior: 27”W x 29”H x 22”F-B

(69cm x 74cm x 56cm)

c. Construction

Exterior: 20 Gauge Stainless Steel 2-B

Interior: 18 Gauge Stainless Steel 2-B

Insulation: 1” (2.5cm) Urethane (Cabinet)

2” (5.1cm) Fiberglass (Door)

Shelves: (6) Stainless Steel

d. Heaters

Water: 300W, 120V, Stainless Steel

Air: 300W, 120V, Wirewound Stainless Steel

Door: 100W, 120V, Silicone Strip

e. Temperature

Control Sensitivity: ±0.01°CRange: +4°C above ambient to +60°C

Repeatability: ±0.06°C

Uniformity: ±0.25°C

f. CO2

Control Sensitivity: ±0.1%

Range: 0% to 20%

g. Humidity (at +21°C/50% RH ambient)

Control: ±5%

Performance: 50% to 96% at +60°C chamber temp

70% to 96% at +37°C chamber temp

Control Sensitivity: ±0.1%

h. Electrical

3029: 120VAC, 50/60Hz, 1 Phase, 6 FLA

3039: 220VAC, 50/60 Hz, 1 Phase, 3.5 FLA

i. Utility Connections

CO2: 1/4” Compression Fitting

Drains: 1/4” MPT Chamber Drain

1/4” MPT Overflow Drain

Water: Self-Contained 1 gallon (3.8 liters) Bottle -supplies chamber reservoir,

external supply optional

Models 3029 and 3039_________________________________________________________________________Specifications


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Section 4 - General Description

4.1 The Model 3029/3039 CO2 Incubator

The Model 3029/3039 incubator is designed to provide

continuous temperature, CO2, and humidity control in a

10 cu. ft., (285 liters), forced draft environment.

Separate solid state CH/P controllers provide direct digi-

tal setpoint control and readout of temperature in 0.1°C

increments, CO2 (within 0.1%), and relative humidity

(within 1.0%). Setpoint and readout of all three parame-

ters are presented on individual L.C.D. displays.

The temperature range of the chamber is approximately

4°C above ambient to +60°C. Temperature control is

+0.1°C, and temperature uniformity is better than

+0.25°C.

The CO2 control system is also fully automatic, allowing

the operator a CO2 content range of 0% to 20% with a

control sensitivity of +0.1%.

Rated in a +21°C/50 RH (relative humidity) ambient, a

humidity range of 50% to 96% is achieved at +60°C

chamber temperature, and a range of 70% to 96% is

achieved at +37°C chamber temperature.

4.2 The CH/P Control System

The Forma CH/P control system for the 3029/3039 incubator provides independent control of temperature, CO2

percentage, and humidity percentage. The system has

been designed for easy troubleshooting and repair.

The controls are easy to operate. Setpoints can be set by

simply pushing in the set knob for the desired parameter,

and turning to the coarse and fine adjustment to obtain

the chosen setpoint. Individual digital displays continu-

ally monitor all three parameters.

An independent alarm system monitors deviations from

CO2 setpoint and gives audible and visual warnings if

CO2 content deviates from setpoint by more than 1%

(nominal). An alarm bypass switch deactivates the CO2

alarm system and a spring-loaded reset temporarily

silences the alarm warning signal.

4.3 Standard Features of the 3029/3039

Self-Diagnostic Control Design: The control systemshave been designed for easy troubleshooting by the cus-

tomer. Not only does self-diagnosis decrease downtime,

but it also saves on service calls.

Positive Forced Air Convection: The air flow system

circulates air horizontally across the shelving in a left-

to-right direction. This design assures uniform distribu-

tion of temperature and humidity, eliminates CO2 strati-

fication, and assures rapid CO2 and RH recovery in the

event of loss. Conditioned air is evenly distributed at allshelf levels under varying load conditions.

Cabinet Construction: The interior is polished stainless

steel and the exterior is constructed with heavy gauge

stainless steel and finished with polyurethane enamel.

Double wall construction is employed to maximize envi-

ronmental stability and provide more economical opera-

tion.

Simplified Cleaning and Sterilization: Interior shelf sup- ports and side panels are easily removable for cleaning

and sterilization. Side panels are bracket mounted and

the floor panel is connected with two screws to make the

humidity reservoir easily accessible.

Door Construction: A full view safety glass inner door

seals onto a peripheral silicone gasket. The outer door is

fitted with a peripheral magnetic gasket and seals

against the cabinet exterior. The door heater minimizes

the condensation on the inner door.

Shelving Design: Solid stainless steel shelves are

adjustable on 1" vertical center channel brackets. Six

shelves are standard equipment, and the incubator has a

24 shelf capacity to provide as much as 97 sq. ft. (9 sq.

meters) of available space.

4.4 Auxiliary Equipment

Stacking Adapter: Required for vertical stacking of two

cabinets, the adapter includes a frame support and an air

blower system. It adds 5" (12.7 cm) to the total height

of two stacked units. (Forma Catalog Number 513028)

Additional Shelves: Additional stainless steel, non-per-

forated shelves may be purchased Incubator capacity is

Models 3029 and 3039____________________________________________________________________General Description


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Models 3029 and 3039___________________________________________________________________ Physical Installation

Section 5 – Physical Installation

5.1 Leveling

Locate the incubator on a firm, level surface in an area of

minimum ambient temperature fluctuation. Level the cabinet

by using the four adjustable feet on the bottom of the unit. The

incubator MUST be level to ensure proper operation. Be sure

adequate clearance exists on the left side of the unit for access

to the water supply and electrical components.

Allow ½” minimum clearance at the bottom of the cabinet.

If this area is blocked, the rated low limit for humidity will be

affected.

5.2 Attaching the Drain Lines

There are two drain lines on the incubator; the chamber

drain and the overflow drain.To attach the chamber drain line:

1) Remove the valve that was shipped inside the unit.

2) Install the valve in place of the pipe plug in the drain on

the back of the unit.

3) Attach tubing to the valve and direct toward a drain.

To attach the overflow drain line:

1) The overflow drain should be rigid piped and trapped.2) Fill the trap with water.

5.3 Connecting to Power

Connect the incubator to an adequate power source.

3029: 120VAC, 50/60Hz, 1 Phase, 6 FLA

3039: 220VAC, 50/60 Hz, 1 Phase, 3.5 FLA

5.4 Shelf Mounting

The shelves in the incubator have been designed to make

cleaning easier.


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Section 6 - Power Module

6.1 Main Power Switch and Indicating Light

The Main Power switch controls all electrical power to the

incubator. The switch must be ON for any of the incubator sys-

tems to be functional.

The main power indicating light is activated whenever the

main power switch is in the ON position and the incubator is

connected to power.

6.2 Temperature Limit Safety Thermostat

The temp limit safety thermostat is designed to be set for a

temperature slightly higher than the operating setpoint tempera-

ture of the incubator. In the event of an overtemp condition, the

temp limit thermostat performs two functions:

• Activates the audible alarm and overtemp indicator light.

• Assumes control of power to immersion and air heaters.

The temp limit control is not directly calibrated. The num-

bers (0 to 10) on the dial are for reference only and do not cor-

respond to any specific temperature.

In the event of an overtemp condition, the alarm will

sound, the overtemp indicating light will activate and the incu-

bator heaters will cycle under the control of the temp limit ther-

mostat. The temperature will be maintained at the temp limit

setting until the source of the overtemp condition has been

determined and corrected.Note: The temp safety control should be checked quarterly to

ensure proper operation. To check the temp safety, turn the

temp safety knob down toward the setpoint until the alarm and

overtemp light are activated. Reset the temp safety after the

test.

a. Setting the Temp Limit Safety Thermostat

Once chamber temperature is stable, the temp limit safety

thermostat should be adjusted as follows:

1. Turn the temp limit control knob slowly counterclock-

wise until the alarm sounds and the overtemp light is

activated.

2 Turn the control knob clockwise no more than two units

6.3 Door Ajar Indicating Light

A Door Open indicating light is located on the power mod-

ule. The red light activates when the outer door is open or hasnot been securely closed.

When the Door Ajar light is on, power to the heaters, blow-

ers and the CO2 injection solenoid is interrupted. This feature

reduces gas usage and conserves energy.

6.4 Door Heaters and Controller

Two heaters, installed in the outer door, can be used whenthere is condensation present on the inner glass door. The heater

control has to be adjusted to operate in conjunction with the

regular temperature control system. The door heater control

should never be set higher than necessary, or above 50. If set

higher, it could have an adverse effect on the temperature con-

trol of the incubator.

The control potentiometer for the door heaters is located

above the water bottle in the left side compartment.

Use the door heaters only if there is excess condensationon the inner door.

a. To Set the Door Heaters

1. Allow the incubator to stabilize at the desired operating

temperature.

2. Locate the heater adjustment.

3. Adjust the heater knob to 10. Allow the cabinet to stabi-lize overnight.

4. If condensate is still present, adjust the door heater to

15. Continue to make adjustments in increments of 5,

allowing the cabinet to stabilize overnight with each

adjustment, until there is no condensate present.

It may be necessary to adjust the door heater after each

change in the operating temperature setting.

Note: Use of the door heater can slightly alter the temperaturein the chamber.

Models 3029 and 3039_______________________________________________________________________ Power Module


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Section 7 - Temperature Module

7.1 Temperature Power Switch and Indicating Light

The temperature power switch controls electrical power to

the temperature module. The power indicating light on the

module is activated when both the main and temperature power

switches are in the ON position.

7.2 CH/P Temp Controller and LCD Temp Display

The LCD digital display on the temperature module contin-

ually shows actual chamber temperature in °C, and the setpoint

temperature when the temp set button is pushed.

The temperature setpoint is changed by pushing the temp

set knob in and rotating the knob to the desired temperature.

Fine adjustments can be made to the setpoint immediately after

the knob is released.

When the setpoint temperature is changed, the digital dis-

play will show the new setpoint for 5-15 seconds before revert-ing to continuous readout of actual chamber temperature.

Since the temperature sensor is located in the conditioning

plenum, small changes in setpoint may result in the desired

temperature being reached in less then 20 seconds. In such

cases, the digital display will not indicate the progressive tem-

perature change as actual temperature moves toward setpoint.

Rather, only the new setpoint will be displayed.

7.3 Heat Indicator Light

The Heat indicator light activates when the temperature

controller calls for more heat in the chamber.

7.4 Setting the Temperature Control

To set the temperature control, push in on the temp setknob and dial to the desired setpoint. Fine adjustments can be

made immediately after releasing the knob.

If the last digit on the display flickers after the chamber

temperature has stabilized, a slight readjustment of the setpoint,

using the fine adjustment, will correct the problem.

Models 3029 and 3039___________________________________________________________________ Temperature Module

7.5 Temperature Calibration Check

Note: To obtain the best results, all calibrations should be per-

formed in the following order; temperature, humidity, CO2.The CH/P temperature controller has been calibrated prior

to shipment of the unit and should not require recalibration for

most laboratory applications. A periodic check of temperature

control calibration, however, is recommended as a matter of

routine maintenance.

A check of temperature calibration is especially advisable

when the ambient temperature is less than 19°C or more than

29°C.

The calibration check should be performed with a calibrat-

ing thermometer of known accuracy, using the following

method.

1. Place the calibrating thermometer inside the chamber,

away from the door and side panels.

2. Allow adequate time for the chamber temperature to sta-

bilize. If the setpoint temperature has not been readjust-

ed before the check, stabilization should be achieved

within 15 minutes. If the temperature setpoint has been

changed by 15°C or more before the calibration check,

stabilization may require as long as 4 hours.

3. Check to see if the temperature indicated by the digital

display agrees with the temperature shown by the ther-

mometer in the chamber.

If the temperature controller requires recalibration, use the

procedure in Section 7.6.

7.6 Temperature Calibration Procedure

Temperature calibration should be performed following the

replacement of either the temperature module or the tempera-

ture probe.

A high quality, calibrating thermometer of known accuracy

is required for this procedure. Place the thermometer near the

center of the incubator chamber and allow the chamber temper-ature to stabilize. Refer to Section 7.5.

1. Turn off power to the temperature module. Pull the mod-

ule out and snap it onto the extender module. Re-install

the module and turn the power on.

2. Adjust switch S2 to position 7. See diagram in Section


11/52


12/52

Section 8 - Humidity Module

8.1 Humidity Power Switch and Indicating Light

The humidity power switch controls electrical power to the

humidity system. The power indicating light on the module is

activated when both the main and humidity power switches are

in the ON position.

8.2 CH/P Humidity Controller and Digital Display

The LCD digital display on the humidity module continual-

ly shows the percent of humidity (RH) and the setpoint when

the RH set button is pushed.

The RH setpoint is changed by holding the RH set knob in

and rotating the knob to the desired percentage. Fine adjust-

ments can be made to the setpoint immediately after the knob is

released.

When the setpoint is changed, the digital display will showthe new setpoint for 5-15 seconds before reverting to continu-

ous readout of the actual chamber RH.

8.3 Humidity Indicating Light

The humidity indicating light activates when the humidity

controller calls for greater humidity percentage in the chamber.

8.4 Setting the Humidity

Put the humidity power switch in the ON position. Push in

on the RH% knob and rotate the knob to the desired humidity

setpoint percentage as indicated on the display.

When running low humidity in the incubator, the excess

water in the cabinet must be eliminated. The incubator should

be free of all condensate in the chamber and under the floor

panel. The humidity reservoir should be at a normal operatinglevel.

Excess water may be eliminated by leaving the chamber

door ajar for approximately one hour. Due to the door safety

switch, the fan and heater will not operate when the door is

open.

Remove the floor section from the incubator. Fill the floor

pan with 1-1/2 gallons of water. This amount of water should

almost fill the floor pan, but still be below the point where thefloat level is activated.

Open the water bottle compartment on the left side of the

cabinet and fill the bottle with distilled or demineralized water.

Allow the chamber to fill with water until the float level is

activated and the water ceases to flow. Let the water level sta-

bilize overnight. Check the water level. It should be 1/8 to 3/8

inches from the top of the overflow.

If the water level in the floor pan is too high or too low, thefloat level control needs to be adjusted. Do this by adjusting

the thumbscrew at the base of the float shaft and, if necessary,

tilting the float mounting bracket.

8.6 Humidity Reservoir and Probe Check

The humidity reservoir water level should be checked peri-

odically to ensure proper humidification levels in the chamber.

The humidity reservoir is reached by removing the floor panel.

Be sure to disconnect power before removing the floor panel.

Make sure that the humidity probe tip is positioned so that

the tip extends 1/8” to 1/16” below the float.

The chamber reservoir water level should be maintained at

1/8” to 3/8” below the overflow level as determined by the

position of the 90° elbow located in the rear left corner of the

reservoir.

8.7 Humidity Probe Placement

The humidity probe must be properly positioned for the incu-

bator to perform optimally in registering humidity changes.

To adjust the humidity probe, it is necessary to remove the

chamber floor panel. The floor panel is connected by screws in

the front corners of the chamber.

Be sure to disconnect power before removing the floor panel

Models 3029 and 3039_____________________________________________________________________ Humidity Module


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8.8 Humidity Calibration Check and Procedure

Humidity calibration should be performed following thereplacement of the humidity module or the humidity probe.

A hygrometer is required for this procedure. It should be

placed inside the chamber, and the chamber should be permitted

to stabilize for approximately 4 hours. During this time, the

inner door should not be opened. If the hygrometer reading dif-

fers from the digital display, recalibration is necessary.

1. Turn off power to the humidity module. Pull the module

out and snap it into the extender card. Turn the power

back on.

3. Adjust switch S2 to position 1. See diagram in Section

11.3 for the switch location.

4. Turn the zero adjustment on the side of the module until

the reading on the digital display agrees with the

hygrometer reading.

5. Turn switch S2 back to 0.

6. Allow time for the chamber to stabilize. Compare the

hygrometer reading with the reading on the digital dis-

play. When the two readings agree, the system is cali-

brated.

Models 3029 and 3039____________________________________________________________________ Humidity Module


14/52


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Section 9 - Carbon Dioxide

9.1 CO2 Power Switch and Indicating Light

The CO2 power switch controls electrical power to the CO2

system. The power indicating light on the module is activated

when both the main and CO2 power switches are in the ON

position.

9.2 CH/P CO2 Controller and Digital Display

The LCD digital display on the CO2 module continually

shows the percent of CO2 and the setpoint when the CO2 set

knob is pushed.

The CO2 setpoint is changed by pushing the CO2 set knob

in and rotating the knob until the desired percentage is indicat-

ed on the display. Fine adjustments can be made to the setpoint

immediately after the knob is released.

When the setpoint is changed, the digital display will show

the new setpoint for 5-15 seconds before reverting to continu-

ous readout of actual percent CO2.

9.3 Audible CO2 Alarm and Alarm Indicating Light

The audible CO2 alarm and alarm indicating light activate

when the percentage of CO2 deviates from setpoint by ±1%

(nominal), or the CO2 set knob is pushed in..

9.4 Alarm Silence Push Button

The alarm silence button is located on the front of the CO2

module. When pushed, it will silence the CO2 alarm, and de-

energize the alarm light. The alarm will remain deactivated

until another alarm condition causes it to sound.

9.5 Alarm Disable Switch

The alarm disable switch is located on the side of the CO2

module. It is necessary to pull the CO2 module out slightly to

allow access to the switch.

9.6 CO2 Inject Light

The CO2 Inject light is activated whenever there is ademand for CO2 to meet the setpoint percentage requirements.

Since the CO2 inject light is independent of the CO2 alarm, it

will continue to signal a need for CO2 when the CO2 alarm is

set to either the Defeat or Silence position.

9.7 Sample Port

A sample port is located on the control panel for checking

the CO2 percentage by independent means, such as with a

Fyrite or similar instrument.

To prevent CO2 loss, the sample port should be capped when

not in use.

9.8 Sealing the Cabinet

When using CO2, the cabinet must be sealed before the unit

is turned on. Check to ensure that the sample port is capped.

Disconnect power to the unit and open the electrical access

panel on the left side of the incubator. Check the Permagum

seals on the lower right. Also check the orange plug in the

upper left. If these openings are not sealed, CO2 will be drained

from the cabinet and temperature and humidity will not stabi-

lize properly.

9.9 CO2 Standardization Adjustment

The CO2 calibration adjustment is located to the right of

the CO2 set knob. This adjustment is used for standardizing the

CO2 controller for specific ambient conditions.

See Sections 9.12 and 9.13 for further information about

standardizing the controller.

9.10 Connecting the CO2 Source

A main supply of liquid CO2, supplied from tanks without

siphon tubes, will provide for the most economical use of CO2.

It is also recommended that a t o stage press re reg lator ith

Models 3029 and 3039______________________________________________________________________ Carbon Dioxide


16/52

To connect the CO2 supply, insert the 1/4” O.D. metal tub-

ing (or the 1/4” O.D. copper tubing piece supplied with the unit

if plastic tubing is used) from the source into the CO2 compres-sion fitting, and tighten the nut one-and-a-quarter turn. As the

nut is tightened, the ferrule (conical shaped ring) inside the nut

exerts pressure on the tubing to hold it firmly in place. (If plas-

tic tubing is used, the tubing should be firmly clamped to the

copper tubing piece to ensure a leakproof seal.)

The CO2 source must be regulated at a pressure level of 4 to 5

PSIG. Higher pressure levels may damage CO2 filter system.

9.11 Setting the CO2 Content

The following conditions must be satisfied before the CO2

percentage can be set:

1. The temperature and humidity in the chamber must be

allowed to stabilize for 6-8 hours or overnight, with the

outer door closed. Since the CO2 sensor is affected bychanges in density and water content of the air, the incu-

bator must be adjusted for site conditions of temperature

and humidity.

2. Check the CO2 control standardization (Section 9.12).

Although all units are standardized at the factory before

shipment, the CO2 control standardization may not be

correct for the ambient conditions in which the incubator

is to be used. A check is therefore mandatory to ensure

proper operation of the CO2 system. Read Section 9.12

and 9.13 before using the incubator with CO2.

To set the CO2 percentage, turn the CO2 power switch ON.

Depress the CO2 set knob and rotate the knob until the desired

percentage is indicated on the digital display.

9.12 CO2 Standardization Check

Check standardization with every adjustment of the tempera-

ture setpoint and/or change of the humidity setting.

The check procedure requires the use of a Fyrite CO2 tester

or similar measuring device However it is possible to stan

To check the standardization, allow chamber temperature

and humidity to stabilize, then sample the CO2 content using

the measuring device and compare the test instrument readingwith the incubator display. Two samples should be taken con-

secutively to allow for any variation in temperature and humidi-

ty. If the readout does not match the test instrument, perform

one of the standardization procedures in Section 9.13.

9.13 Standardization Procedure

a. Procedure A (CO2 Tester Not Required)

1. Disconnect CO2 at source (if connected) and fan the

door about 10 times to eliminate CO2 from chamber.

2. Allow the chamber temperature and humidity to stabi-

lize for at least 4 hours. Do not open door during stabi-

lization.

3. Locate the CO2 standardization adjustment located on

the control panel.

4. Using a jeweler’s screwdriver, turn the standardizationadjustment slowly counterclockwise until the digital dis-

play reads 00.0%. Allow one minute for stabilization.

The unit is now standardized and can be adjusted to the

desired CO2 operating setpoint.

b. Procedure B (CO2 Tester Required)

1. Disconnect CO2 at source (if connected) and fan thedoor about 10 times to eliminate CO2 from chamber.

2. Allow the chamber temperature and humidity to stabi-

lize for at least 4 hours. Do not open door during stabi-

lization.

3. Locate the CO2 standardization adjustment located on

the control panel.

4. Using a jeweler’s screwdriver, turn the standardization

adjustment slowly counterclockwise until the digital display reads 00.0%. Allow one minute for stabilization.

5. Connect the CO2 source and set the CO2 controller for

the desired setpoint and allow approximately 30 minutes

for stabilization.

6. Using the CO2 tester, read the actual CO2 percentage in

Models 3029 and 3039_______________________________________________________________________Carbon Dioxide


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9.14 CO2 Calibration Check and Procedure

CO2 calibration should be performed following the replace-ment of the CO2 module or the CO2 sensor.

A Fyrite or similar CO2 test device is required for this pro-

cedure. The procedure must be followed carefully to ensure

proper calibration of the CO2 controller. Test the CO2 content

with the test instrument. If the reading differs from the reading

on the digital display, recalibration is necessary.

1. Disconnect the CO2 source and eliminate the CO2 from

chamber by fanning the door 10 times.

2. Close the doors and allow sufficient time for the temper-

ature and humidity in the chamber to stabilize.

Stabilization may take up to 4 hours. Do not open the

door during the stabilization period.

3. Turn off power to the CO2 module. Pull the module out

and snap it into the extender card. Re-install the module

and turn the power back on.

4. Adjust both the coarse and fine adjustments on the CO2

setpot fully counterclockwise.

5. Wait 60 seconds and change the switch S2 to position 1.

Turn the current adjustment on the side of the module

until the display reads 07.0. Return switch S2 to 0.

6. Turn the calibration adjustment on the front panel until

the display reads 00.00.

6. Adjust the CO2 setpoint to 5%.

7. Reconnect or turn on the CO2 supply to the chamber andallow time for the system to stabilize. In most cases, 30

minutes should be sufficient.

8. Using the test instrument, sample the actual CO2 level in

the chamber. Note the reading on the digital display.

9. To prevent additional CO2 from entering the chamber,

turn the CO2 setpoint knob fully counterclockwise.

10. Adjust the span pot on the CO2 module until the reading

on the digital display agrees with the test instrumentreading.

Note: This calibration should be suitable for most laboratory

applications. If more precise calibration is necessary, this proce-

dure should be repeated.

Models 3029 and 3039_______________________________________________________________________Carbon Dioxide


18/52


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Section 10 - Preventive Maintenance

10.1 Cleaning

The chamber interior should be cleaned with alcohol and/or

soap and water. The interior panels should be disinfected with a

general-use laboratory disinfectant. Information about disinfec-

tants recommended by Forma Scientific is included as a supple-

ment at the end of the manual.

The cabinet exterior may be cleaned with soap and water,

or any non-abrasive commercial spray cleaner.

See Section 10.2 for a sterilization procedure.

10.2 Sterilization

The incubator can be easily sterilized in approximately 30

minutes. Full strength Amphl Spray or O-Syl disinfectant in 1%

or 3% solutions (dilute with sterile distilled water) is recom-mended.

Remove the shelves, interior duct sheets and bottom from

the incubator and set them aside. Spray all interior surfaces.

Sponge down all surfaces to remove any foreign matter, and

rinse the surfaces at least twice with distilled water.

Be sure that the door gasket is also thoroughly cleaned. It

may be necessary to lift up the edge of the gasket to clean it

thoroughly. Clean the interior of the glass door with the solu-tion, and rinse it with distilled water. The drip trough should be

wiped out and carefully rinsed.

Run some of the solution through the drain lines.

If desired, all surfaces can then be rubbed or sprayed with

70% alcohol. Be sure to drain and sponge all solution from the

incubator. All shelves, duct sheets, and removable components

can be washed down with the same solution before they are

returned to the incubator.

Do not direct a hard spray of the solution at the temperature

sensor, or rub it directly. To do so could bend the sensor wire.

Do not use strong alkaline or caustic agents. Stainless steel is

corrosion-resistant, not corrosion-proof.

The use of volatiles or aromatics is not recommended for

cleaning cabinet interiors. Residues could cause contamina-

tion of the cabinet environment.

General Instructions

Use the mildest cleaning procedure that will do the job

effectively. To ensure maximum effectiveness and to avoid mar-

ring the surface, always rub in the direction of the finish polish

lines. Be sure to rinse the surface thoroughly after each clean-

ing operation. To avoid water marks, wipe the surface dry.

a. Passivation Procedure for Surface

Contamination Removal

Note: Safety requires use of rubber gloves and eye protection.

Equipment required:

1. Nitric acid 70 to 80 percent

2. Non-metallic mixing container at least 2 qt. capacity

(2) required3. Acid brush

4. Rubber gloves

5. Goggles

6. Bicarbonate of soda

1) Procedure A - Vertical surfaces

1. Dilute acid 4 to 1 with water (add acid to water slowly).

2. With acid brush, apply nitric acid half strength to areasshowing any signs of oxidation.

3. Leave acid on surface for 30 to 60 minutes depending

upon severity of blemish.

4. Prepare a solution of sodium bicarbonate and water

(approximately 4 oz. per quart).

5. With cloth dipped in sodium bicarbonate solution, rinse

acid-treated surfaces to neutralize acid.

6. Final rinse with plain water.

2) Procedure B - Horizontal surfaces (tank bottoms, etc.)

1. Dilute acid 4 to 1 with water (add acid to water slowly).

2. Pour acid until surface is just covered.

Models 3029 and 3039_________________________________________________________________Preventive Maintenance


20/52

4. Remove acid.

5. Prepare a solution of sodium bicarbonate and water

(approximately 4 oz. per quart). Pour solution until sur-

face is just covered and let stand for 15 minutes.6. Remove this solution and finally rinse with plain water.

Note: Rusting of 300 Series stainless steel is purely a surface

effect and can be caused by iron carbide precipitation at joints

heated by welding or contact with carbon steel chips, tools, etc.

Surface treatment will remove this contamination.

Models 3029 and 3039________________________________________________________________Preventive Maintenance


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1 0 - 3

M o d e l s 3 0 2 9 a n d 3 0 3 9 _ _ _ _ _ _ _ _ _ _ _ _ _

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

_ _ _ _ _ _ _ _P r e v e n t i v e M a i n

t e n a n c e


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1 0 -4

M o d e l s 3 0 2 9 a n d 3 0 3 9 _ _ _ _ _ _ _ _ _ _ _ _ _

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

_ _ _ _ _ _ _ _P r e v e n t i v e M a i n

t e n a n c e


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1 0 - 5

M o d e l s 3 0 2 9 a n d 3 0 3 9 _ _ _ _ _ _ _ _ _ _ _ _ _

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

_ _ _ _ _ _ _ _P r e v e n t i v e M a i n t e n a n c e


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Models 3029 and 3039_____________________________________________________________________Troubleshooting

Section 11 - Troubleshooting


25/52

Models 3029 and 3039______________________________________________________________________Troubleshooting

d l 3029 d 3039 bl h i


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11.2 Temperature Troubleshooting Overview

a. General Instructions

Follow the instructions on the flowchart to diagnose prob-

lems with the temperature system. For this diagnostic aid to be

effective, all checks must be made in the sequence indicated by

the flowchart and all data carefully recorded in the table provid-

ed.

b. Temperature System Troubleshooting

Turn the temp module off and remove the temperature and

logo modules. Transfer the extender card from the logo module

to the module slot. Check the alignment. Add the temp module

to the extender and check the alignment.

Do not plug the module in upside-down. To do so will damage

the unit.

General Notes

• Before removing any control module from the unit, turn

the power to that module off.

• Unless otherwise noted in the procedure, the module

referred to is the temp module. The switches referred to are

located on the temp module.

• Switch locations for the temp module are labeled on the

following module diagram.• When rotating set knob fully in one direction, it will be

necessary to push the knob in at intervals to get the knob to

rotate completely.

• When taking readings with the set knob both in and out,

wait 20 seconds after taking the reading with the knob in

before taking the reading with the knob out.

• See Drawing 3029-51-0-D for location of the plug.

11.3 Humidity Troubleshooting Overview


Follow the instructions on the flowchart to diagnose prob-

lems in the humidity system. For this diagnostic aid to be effec-

tive, all checks must be made in the sequence indicated by the

flowchart and all data must be carefully recorded.

b. Humidity System Troubleshooting Procedure

Turn the RH module off and remove the RH and logo mod-ules. Transfer the extender card from the logo module to the

RH module slot. Snap the extender card into the connector.

Check the alignment. Add the RH module to the extender and

check the alignment.


the unit.

General Notes

• Before removing the control module from the unit, turn the

power off.


referred to is the RH module. The switches referred to are

located on the RH module.

• Switch locations for the RH module are labeled on the

module diagram.• When rotating set knob fully in one direction, it will be

necessary to push the knob in at intervals to get the knob to

rotate completely.

• When taking readings with the set knob both in and out,

wait 20 seconds after taking the reading with the knob in

before taking the reading with the knob out.

• Recalibration of any of the controls may be necessary fol-

lowing component replacement.• Place the thermometer through the hole on the front of the

incubator floor. The thermometer should be lowered until it

touches the bottom of the humidity pan.

M d l 3029 d 3039 T bl h ti


27/52

Models 3029 and 3039_______________________________________________________________________Troubleshooting

Log RH readings on this table.

Display Data LimitsS2 SettingSilence/Set Button Out Silence/Set Button In

Your Results

1 80 through 90%, ±5% N/A

2 64.0 through 96.0 N/A

3 See temp setpoint N/A

4 40 0 h h 60 0 N/A

Log temp readings on this table.


Your Results

1 120.0 through 180.0 N/A

*2 64.0 through 96.0 N/A

3 -120.0 through –180.0 N/A

*4 -40.0 through –60.0 N/A

5 20.0 through 30.0 N/A

6 20.0 through 60.0

7 See thermometer N/A

8 -40.0 through –60.0 50.0 through 96.0

*Limits are for temp or RH.


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11.4 CO2 System Troubleshooting Overview


Follow the instructions on the flow chart to diagnose prob-

lems with the CO2 controller. For this diagnostic aid to be effec-

tive, all checks must be made in the sequence indicated by the

flow chart and all data must be carefully recorded.

b. Stabilizing the Cabinet

Prior to beginning the procedure, shut the cabinet door andset the temperature and humidity at normal operating levels.

The temperature and humidity should be stabilized by Step #12

of the procedure.

c. CO2 System Troubleshooting Procedure

Turn the CO2 module off and remove the CO2 and logo

modules. Transfer the extender card from the logo module to

the CO2 module slot. Snap the extender card into the connector.Check the alignment. Add the CO2 module to the extender and

check the alignment.


the unit.

General Notes

• The first eleven steps of the procedure can be completed

with the temperature and humidity in an unstable condi-

tion.

• The first fifteen steps can be performed with the CO2

turned off.

• Before removing the control module from the unit, turn the

power to the module off.

• At various times in this procedure, the CO2 alarm may

sound. Unless otherwise noted, the alarms may be silenced

by pressing the alarm silence button.


referred to is the CO2 module and the switches referred to

are located on the CO2 module.

Models 3029 and 3039_______________________________________________________________________Troubleshooting


37/52

Log CO2 readings on this table.


Your Results

1 15.0 through 25.0 N/A

2 approximately ½ reading 3 N/A

3 35.0 through 50.0 N/A

4 See Fyrite™ N/A

5 00.2 through 20.0 N/A

6 N/A N/A

7 96.0 through 140.0 N/A

8 -40.0 through –60.0 N/A


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Models 3029 and 3039_______________________________________________________________________________Service


42/52

Section 12 - Service

12.1 Electrical Servicing

Access to all electrical components is provided by opening

the component compartment door on the left side of the cabinet.

The door is secured by two 1/4 turn fasteners.

The CO2, temperature, and humidity modules can be easily

removed. Turn the power to the particular module OFF. Pull the

black button out with a suitable tool to release the module, and

carefully ease the module out of the panel.The Model 3029 incubator has been designed so that no

internal electrical servicing should be required under conditions

of normal use.

If electrical servicing should become necessary, it should be

performed by qualified service personnel only!

For electrical information, consult the electrical schematic(Drawing #3029-50-0-D) and/or the wiring diagrams (Drawing

#3029-51-0-D, #3029-53-0-D) included at the end of manual.

For maximum safety, always disconnect the power before

servicing.

12.2 Temperature Sensor Replacement

The temperature sensor is located behind the left side duct

sheet, inside the incubator. To remove and replace the sensor:

1. Turn the power switch to OFF and disconnect the unit

from the power source.

2. Remove the shelves from the incubator. Loosen the two

screws that secure the floor of the incubator. Lift out the

floor and set it aside.

3. Carefully lift the left side duct sheet from its mounting

brackets and set it aside.

4. Locate the temp sensor (#245054 on drawing #3029-53-

0-D, Detail 1). It is mounted on the top rear of the left

interior wall.

5. Unscrew the two screws that attach the sensor to the

7. Set the temp sensor on the floor of the unit.

8. Open the side component compartment and locate the

motherboard (#285055 on drawing #3029-51-0-D).

9. Locate the temp sensor (plug #1 on the mother board).

10. Unplug the temp sensor, taking care not to pinch the

plug or removal will be difficult.

11. Carefully feed the temp plug and lead wire through the

access port and into the chamber. It may be necessary to

clear the Permagum from the port. Remove any tie

wraps to permit the plug to move freely into the cham-

ber. The Permagum should be replaced and the port

sealed after the sensor is replaced.

12. Remove the sensor from the chamber.

13. Replace the sensor with part number #245054 by revers-

ing the above procedure. Be sure to seal all screws with

silastic.

14. The temperature controller may need to be recalibrated

following this procedure. Perform a temperature calibra-

tion check (Section 7.5) to determine if recalibration is

necessary.

12.3 Replacing the Chamber Heater

The chamber heater is located under a protective plate

beneath the floor of the incubator. To remove and replace the

chamber heater:


from the power source.2. Remove the shelves from the incubator. Loosen the two

screws that secure the floor of the incubator and set the

floor aside.

3. Locate the heater (#600210 on drawing #3029-53-0-D).

It is mounted to the protective plate.

4. While holding the nut beneath the each screw, remove

the four screws from the top of the mounting plate.

Note: The heater will drop down from the mounting plate whenthe screws are removed.

5. Carefully pivot the heater out from under the bracket.

6. Remove the nuts from the heater connections and

remove the wires.



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12.4 Replacing the Humidity Probe

The humidity probe is located inside the incubator beneath

the floor. To remove and replace the humidity probe:1. Turn the power switch to OFF and disconnect the unit




floor aside.

3. Locate the humidity probe (#285053 on drawing #3029-

53-0-D, Detail 2). It is held to the float at the front of the

water pan.4. Remove the probe by pulling it upward and out of the

holder.

5. Unscrew the silver ground wire from the float mounting

bracket.

6. Feed the humidity probe through the bushing in the float

mounting bracket.

7. Open the side component compartment and locate the

motherboard (#285055 on Drawing 3029-51-0-D.)

8. Locate the humidity probe plug (plug #2 on the mother-

board).

9. Unplug the humidity sensor, taking care not to pinch the

plug as removal will become more difficult.

10. Carefully feed the humidity plug and lead wire through

the access port and into the incubator chamber.

Note: It will be necessary to clear the Permagum from the port

and clip any tie wraps to permit the plug to move freely into the

chamber. The Permagum should be replaced and the port sealed

after the probe is replaced.

11. Remove the probe from the incubator chamber.

12. Replace the probe with part #245053 by reversing the

above procedure.

13. When replacing the probe, be sure that the tip extends

only about 1/16” below the surface of the water.

14. The humidity controller may need to be recalibrated fol-

lowing this procedure. Make a humidity calibration

check. (See Section 8.8.)

12.5 Replacing the Immersion Heater

3. Locate the immersion heater (#610005 on drawing

#3029-53-0-D, Detail 2). It is clipped to the floor of the

humidity reservoir.

4. Remove the nuts from the clips securing the heater to

the floor.

5. Note the color of the heater lead wires.

6. Open the component compartment and locate the heater

wires (labeled Wet Heater on Drawing #3029-51-0-D).

Disconnect the heaters by removing the wire nuts. Be

sure to note the wiring configuration.

7. Carefully feed the heater wire leads through the access port and into the incubator chamber.

Note: It may be necessary to clear Permagum from the port and

remove any tie wraps that restrict passage of the heater wires.

The Permagum should be replaced and the port sealed after the

heater is replaced.

8. Remove the heater from the chamber.

9. Replace the heater with part number #610005 by revers-

ing the above procedure.

12.6 Replacing the CO2 Sensor

The CO2 sensor is located inside the incubator behind the

left duct sheet. To remove and replace the CO2 sensor:





floor aside.

3. Carefully lift out the left duct sheet from its mounting

bracket and set it aside.

4. Locate the CO2 sensor (#245057 on Drawing #3029-53-

0-D, Detail 1). It is mounted near the center of the left

interior wall.

5. Remove the two screws that attach the sensor to the

wall. Note how the washers and tie wraps are posi-

tioned. Retain the screws and washers to mount the new

sensor. Remove the tie wrap holding the temp sensor

lead wire to the CO2 sensor block.

Note: It is very important that the tie wrap is replaced when the



44/52

10. Carefully feed the CO2 sensor plug and lead wire

through the access port and into the incubator chamber.

Note: It may be necessary to clear Permagum from the port and

remove any tie wraps that restrict movement of the lead wire.

The Permagum should be replaced and the port sealed after the

sensor is replaced.

11. Remove the sensor from the chamber.

12. Replace the sensor with part number #245057 by revers-

ing the above procedure. Be sure to seal all screws with

silastic.

13. The CO2 controller may need to be recalibrated follow-

ing this procedure. See Section 9.14 for the CO2 calibra-

tion check procedure.

12.7 Replacing the CO2 Solenoid Valve

The CO2 solenoid valve is located in the component com-

partment. To remove and replace the solenoid valve:



2. Open the component compartment and locate the sole-

noid valve (#250003 on Drawing #3029-51-0-D).

3. Follow the wire from the solenoid to the motherboard

and disconnect plug #3 from the board.

4. Remove the tygon tubing from both sides of the sole-

noid.

5. Remove the two screws securing the solenoid to the wall

of the incubator.

6. Remove the screws from the bottom of the solenoid

mounting and remove the solenoid. Note the position of

the energy-absorbing pads.

7. Replace the solenoid valve with part number #250003

by reversing the above procedure. Place the energy-

absorbing pads in their original positions.

12.8 Replacing the Blower

The blower is located inside the component compartment,

with a portion of it extending into the incubator chamber. Toremove and replace the blower:





floor aside.

3. Carefully lift out the left duct sheet from its mounting

bracket and set it aside.4. Locate the blower wheel (#131006 on Drawing #3029-

53-0-D, Detail 1).

5. Loosen the blower wheel with an Allen wrench, and lift

the wheel from the shaft.

6. Open the component compartment and locate the blower

motor (#810700 on Drawing #3029-51-0-D).

7. Remove the four screws securing the blower and pull

the blower out of the incubator wall.

Note: The area around the blower shaft has been sealed with

silastic. As a result, the blower may be difficult to remove. It

may be necessary to use a razor knife to cut the silastic.

Remember to seal around the new motor with silastic to prevent

leakage from the incubator.

Do not cut, or otherwise damage, the blower mount gasket.

It will be necessary to reuse this gasket with the new blower motor.

8. Remove the wiring connections to the blower motor.

Note the positions of the wires.

9. Replace the blower motor with part number #810700 by

reversing the above procedure.

Models 3029 and 3039_________________________________________________________________________Parts List


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Section 13 - Parts List

Model 3029

Qty Stock # Description

1 285812 Plug, 2 Pole, 3 Wire, 15 Amp, Nylon

1 950020 Cord Set, 16/3 SJT, 8 ft.

1 260039 Switch, Toggle, DPST

1 260042 Switch, Sealed Snap Action

1 270010 Thermostat, Low-temp, B-10

1 285055 Board, Circuit, Mother

1 285660 Knob, 1-1/4”, Blue w/ Clear Skirt

1 290113 Light, Pilot, Red, 5/16 Neon, 115V

8 124001 Guides, Card

1 285057 Extender, Module Board

1 510410 Grommet, Nylatch (for modules)

1 510411 Plunger, Nylatch (for modules)

1 231002 Module, CO2 Control

1 231003 Module, Temp Control

1 231004 Module, Humidity Control

1 131006 Wheel, Blower

2 136000 Heater, Exterior Door

1 205025 Filter, RFI/EMI

2 250013 Relay, DPDT, Enclosed

1 270080 Switch, Infinite Heat

1 285639 Switch, Dial Heat

1 285660 1-1/4” Knob

1 285798 Snap-In Outlet

1 285805 Receptacle, Door

9.5 400296 Gasket, Feather, Inner Door

Model 3029 (continued)


2.8 431125 Magnet, 1”

2.9 431124 Magnet, 1/2”

1 431144 Gasket, Outer Door

1 463028 Door, Glass, Inner

1 600210 Heater, 300W, Air

1 610005 Heater, Immersion, 300W

1 810700 Motor, Blower

1 950015 Cord, Electrical, Door, w/ Plug

1 890139 Gallon Bottle

1 60000 Clamp, Water Bottle

1 980055 Valve, Float

1 285020 Alarm, Sonalert, 110V

1 245057 Sensor Assembly, CO2, w/ Plug

1 250003 Valve Assembly, Solenoid, CO2

1 245054 Sensor Assembly, Temperature

1 245053 Sensor Assembly, Humidity

1 400008 Module, Power Supply

2 250021 Relay, Solid State, 10A, 240VAC

4 515081 Foot, Leveling, Adjustable

1 195105 Filter, CO2 Inlet

1 960001 Orifice, CO2 Injection

1 136005 Heater, Silicone Rubber, 6W, 120V

1 475576 Door Hinge, Interior

2 505546 Door Hinge, Exterior

6 503028 Shelf

Models 3029 and 3039_____________________________________________________________________________Parts List


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Model 3039

1 950045 Cord, 16/3 SJT, 8 ft.

1 260039 Switch, Toggle, DPST1 260042 Switch, Sealed Snap Action

1 270010 Thermostat, Low-temp, B-10

1 285055 Board, Circuit, Mother

1 285660 Knob, 1-1/4”, Blue w/ Clear Skirt

3 290113 Light, Pilot, Red, 5/16 Neon, 115V

1 285057 Extender, Module Board

1 510410 Grommet, Nylatch (for modules)

1 510411 Plunger, Nylatch (for modules)1 231002 Module, CO2 Control

1 231003 Module, Temp Control

1 231004 Module, Humidity Control

1 131006 Wheel, Blower

2 136001 Heater, Exterior Door

1 205025 Filter, RFI/EMI

2 300065 Relay, DPDT, Enclosed

1 270090 Switch, Infinite Heat1 285639 Switch, Dial Heat

1 285660 1-1/4” Knob

1 285821 Receptacle, 125V, 15A

1 285805 Receptacle, Door

9.5 400296 Gasket, Feather, Inner Door

2.8 431125 Magnet, 1”

2.9 431124 Magnet, 1/2”

1 431144 Gasket, Outer Door 1 463028 Door, Glass, Inner

1 600211 Heater, 300W, Air

1 610006 Heater, Immersion, 300W

Model 3039 (continued)


1 810701 Motor, Blower 1 950015 Cord, Electrical, Door, w/ Plug

1 60000 Clamp, Water Bottle

1 980055 Valve, Float

1 285020 Alarm, Sonalert, 110V

1 245057 Sensor Assembly, CO2, w/ Plug

1 250003 Valve Assembly, Solenoid, CO2

1 245054 Sensor Assembly, Temperature

1 245053 Sensor Assembly, Humidity1 400008 Module, Power Supply

2 250021 Relay, Solid State, 10A, 240VAC

4 515081 Foot, Leveling, Adjustable

1 195105 Filter, CO2 Inlet

1 960001 Orifice, CO2 Injection

1 136006 Heater, Silicone Rubber, 6W, 120V

3 1210104 Resistor, 100K Ohm 1/4W 10%

1 1211822 Resistor, 8.2K Ohm 1/2W 10%1 505522 Latch Tab

1 505523 Latch Stud

1 890139 Gallon Bottle

1 60000 Clamp

1 34014 Plug 1/2”

1 34028 Cap Vinyl

1 34053 Plug 1-1/4”

1 515072 Latch, Pushbutton6 503028 Shelf

1 195125 Bacterial Air Vent Filter


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Date post:	06-Jul-2018
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User Manual - Forma - 3029, 3039 - Countertop Incubator 10 Cu.ft. - 7013029[1] Copy

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