Forma Scientific 3911 User manual

Forma Scientific, Inc.
P.O. Box 649
Marietta, Ohio 45750
U.S.A. Telephone: [phone]
Telefax: [phone]
Model: 3911/3913
Reach~ln Incubator
11 cu ft capacity
Manual No. 7013911 Rev-4
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.
Caution: All internal adjustments and maintenance must beperformed by
qualified servicepersonnel.
Refer to the serial tag on the
rear cover of this manual

Forma Scientific, Inc.
~... -~~~~~~~~~~~~~~~~~~~~~~~~-
CAUTION
Contains Parts and Assemblies
Susceptible to Damage by
Electrostatic Discharge (ESD)
NOTE:
The material in this manual is for information purposes only. The contents and the
product it describes are subject to change without notice. Forma Scientific, Inc. makes no
representations orwarranties with respect to this manual. In no event shall Forma
Scientific, Inc. be held liable for any damages, direct orincidental, arising out
of or
related to the use of this manual.
This product is not intended for any usees) other than the usees) described in the
labeling
or this user's manual.
MANUAL NO.
7013911
I
4 178611IN-2439 8/5/99 Updated schematics per CSA aks
3 18192 4/20/99 Updated Figure 5-1 wiring per G. Smith ccp
2 17725IIN-2436 10/6/98 Add sections 2.9 and 3.5 per
ECR
deg
1 IN-2111 8/96 Product release (2) add Watlow 982 deg
REV
ECN DATE DESCRIPTION By
11

Forma Scientific Division
"---------------------------------
Do You Need Information or Assistance on Forma®
Products?
If you do, please contact us 8:00 a.m. to 7:00 p.m. (Eastern Time) at:
1-740-373-4763 Direct
1-888-213-1790 Toll Free, U.S. and Canada
1-740-373-4189 FAX
J-------I..------http://www:foNII'rrna<:r.-,.crrOlmjj.------llntemetWorldwic:teWeb-Home-Pagoe-------------+
[email protected] Service E-Mail Address
Our Sales Supportstaffcan provide infonnation onpricing and give you quotations. We
can take your order and provide delivery infonnation on major equipment items
or make
arrangements to have your local sales representative contactyou. Ourproducts are listed on the
Internet and we can be contacted through our Internet home page.
Our Service Support staffcan supplytechnical infonnation about proper setup,
operation ortroubleshooting
of your equipment. We can fill your needs for spare or replacement
parts or
provide~you wIth on-sIteservlce.Wecan also provide youwHha quotatioi onaur --~
Extended Warranty for your Forma products.
Whatever Fonna® products youneed 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 ora qualified service organization for on-the-spot repair.
If your service need is
covered by the warranty, we will arrange for the unit to be repaired at our expense and to your
satisfaction.
Regardless
of your needs, our professional telephone technicians are available to assist
you Monday through Friday from 8:00 a.m. to 7:00 p.m. Eastern Time. Please contact us by
telephone orfax.
If you wish to write, ourmailing address is:
ThermoQuest
Forma Scientific Division.
POBox 649
Marietta, OR 45750
International customers please contact your local ThennoQuest, Fonna Scientific
Division distributor.

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Fonna Scientific, Inc. Service
IV

Fonna Scientific, Inc.
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General Safety Notes used in this Manual
& Important operating and/or maintenance instructions. Read the accompanying text
carefully.
Ce symbole attire I'attention de I'utilisateur sur des instructions importantes de
fonctionnement et/ou d'entretien.
II peut etre utilise seul au avec d'autres symboles de
securite. Lire attentivement
Ie texte d'accompagnement.
Wichtige Betriebs- und/oder Wartungshinweise. Lesen Sie den nachfolgenden Iext
sorgfi:lltig.
Importante instruccions de operacion y/o mantenimiento. Lea el texto acompanante
cuidadosamente.
:
:
Potential electrical hazards. Only qualified persons should perform procedures
associated with this symbol.
Ce symbole attire I'attention
de I'utilisateur sur des risques electriques potentiels.
Seu[es des personnes qualifiees doivent appliquer les instructions et les procedures
associees ace symbole.
Gefahr von Stromschli:lgen. Nur qualifizierte Personen sollten die Tatigkeiten
ausfOhren, die mit diesem Symbol bezeichnet sind.
Potencial de riesgos electricos. Solo personas das capacitadadas deben ejecutar los
procedimientos asociadas con este simbulo.
v
i

Fonna Scientific,
Equipment being maintained or serviced must be turned off and locked off to prevent
possible injury.
Risques potentiels lies aI'energie. L'equipement
en entretien ou en maintenance doit
etre eteint et mis sous cia pour eviter des blessures possibles.
Gerate, an denen Wartun s- oder Servicearbeiten durchgefUhrt werden, mOssen
abgeschaltet und abgeschlossen werden, um Verletzungen zu vermeiden.
EI equipo recibiendo servicio 0 mantenimiento debe ser apagado y segurado para
prevenir danos.
Hot surface(s) present which may cause burns to unprotected skin or to materials
which may be damaged by elevated temperatures
Presence de surface(s) chaude(s) pouvant causer des brulures sur la peau non
protegee, ou sur des matieres pouvant etre endommagees par des temperatures
elevees.
Hei~e Oberflache(n) kannen ungeschUtzter Haut Verbrennungen zufUgen oder
Schaden an Materialien verursachen, die nicht hitzebestandig sind.
Superficias calientes que pueden causar quemaduras a piel sin proteccion 0 a
materiales que pueden estar danados por elevadas temperaturas.
~ Always use the proper protective equipment (clothing, gloves, goggles etc.).
~ Always dissipate extreme cold orheat and wear protective clothing.
~ Always follow good hygiene practices.
~ Each individual is responsible for his or her own safety.
VI

Fonna Scientific,
Table of Contents
SECTION 1 - RECEIVING
1.1 Preliminary Inspection.................................................................................. 1-1
1.2 Visible Loss or Damage................................................................................ 1-1
1.3 Responsibility for Shipping Damage............................................................ 1-1
SECTION 2 - INSTALLATION AND START-UP
2.1 Location ......................................................................................................... 2-1
2.2 Water (Humidity System) and Drain Connections ........................................ 2-1
a. Connecting the Water Inlet for the Humidity System............................. .2-1
b. Connecting the Drain Line......................,.................................................2-2
2.3 RS-232 Output Interface and Remote Alann Connector...............................2-3
a. RS-232 Data Output.................................................................................2-3
b. Remote Alann Contacts...........................................................................2-3
2.4 Power Connection.........................................................................................2-4
2.5 Start-Up Procedure.........................................................................................2-4
2.6 Setting the Overtemp Safety Thennostat......................................................2-4
2.7 Setting the Undertemp Safety Thennostat.....................................................2-5
2.8 Preparing the optional CoBex Recorder ......................................................2-6
a. Installing the Chart Recorder Battery.......................................................2-6
b.. Changing the Chart Paper........................................................................2-6
c. Changing the Pen .....................................................................................2-7
d. Calibrating the chart recorder ..................................................................2-7
2.9 Offset Calibration..........................................................................................2-8
2.10 Controller Configuration.............................................................................2-11
Temperature Configuration
Humidity Configuration
SECTION 3 - CONTROL PANEL OPERATION
3.1 The 3911 Control Panel.............................................................................. 3-1
• Main Power Switch and Indicator Light....................................................3-1
• Refrigeration Switch and Indicator Light..................................................3-1
• Defrost Switch and Indicator Light............................................................3-2
vii

Forma Scientific,
• Overtemp Safety Control, Indicator Light and Audible Alarm ...............3-2
• Undertemp Safety Control, Indicator Light and Audible Alarm .............3-2
• Humidify Switch and Indicator Light ........................................................
3-3
• Dehumidify Switch and Indicator Light .................................................... 3-3
• Audible Humidity Alarm and Indicator..................................................... 3-3
3.2 Setting the Incubator's Operating Temperature........................................3-4
3.3 Setting the Incubator's Operating Humidity.............................................
3-5
3.4 Programming the controllers ......................................................................3-5
a. Removing the mechanical lockout........................................................3-5
b. the software lockout............................................................3-6
3.5 Air Exchange Ventilator Caps....................................................................3-8
SECTION 4 - ROUTINE MAINTENANCE
4.1 Cleaning the Incubator................................................................................ 4-1
a. Maintaining the Humidity Steam Generator....................................... .4-1
SECTION 5 - SERVICE
5.1 Accessing the Electrical Components........................................................ 5-1
5.2 Replacing the Overtemp/Undertemp Probe and Thermostat ................... 5-1
5.3 Replacing the Humidity/Temperature Sensor...........................................5-2
5.4 Replacing the Optional Recorder and Probe(s).........................................
5-3
5.5 Setting the Door Heater Control .................................................................5-4
5.6 Cleaning and Adjusting the Humidity Steam Generator...........................5-5
a. Checking the Steam Generator Safety Thermostat Calibration...........5-6
SECTION 6 - SPECIFICATIONS
SECTION 7 SPARE PARTS LISTS
SECTION 8 - SCHEMATICS
SECTION 9 - WARRANTY
viii

Forma Scientific,
Section 1 - Receiving
1.1 Preliminary Inspection
This item was thoroughly inspected and carefully packed prior to shipment
and all necessary precautions were taken to ensure safe arrival
of the merchandise at
-------its-d;estination:-immetiiat-eiy-upo-n--reeeil't;-befure-the-uni-t-is-m0vecl-fr-om:--thee----------
receiving area, carefully examine the shipment for loss or damage. Unpack the
shipment and inspect both interior and exterior for any in-transit damage.
1.2 Visible Loss or Damage
If any loss or damage is discovered, note any discrepancies on the delivery
receipt. Failure to adequatelydescribe such evidence
of loss or damage may result in
the carrier refusing to honor a damage claim. Immediately call the delivering carrier
and request that their representative perform an inspection. Do not discard any
of the
packing material and under no circumstances move the shipment from the receiving
area.
1.3 Responsibility for Shipping Damage
For products shipped F.O.B. Marietta, Ohio, the responsibility of Forma
Scientific, Inc. ends when the merchandise is loaded onto the carrier's vehicle.
On F.O.B. Destination shipments, Forma Scientific's and the carrier's
responsibility ends when your Receiving Department personnel sign a free and clear
delivery receipt.
Whenever possible, Forma Scientific, Inc. will assist in settling claims for
loss or in-transit damage.
1-1

Forma Scientific, Inc. ___________________ InstallationiSet-Up
Section 2 - Installation and Set-Up
2.1 Location
Locate the unit on a firm, level surface in an area of minimum ambient temperature
fluctuation. A minimum
of three (3) inches of clearance is required at the rear of the
incubator. This space is necessary
to allow adequate air flow around the refrigeration
system.
2.2 Water (Humidity System) and Drain Connections
a. Connecting the Water Inlet for the Humidity System
Do not attempt to operate the humidity system withoutfilling
itwith water. The humidification heater will overheat,
and
the overtemp safety thermostat willshut the humidification
system down.
The humidity reservoir will require approximately one quart (.946 liter) of water on
the initial filling. To ensure continuous satisfactory operation
of the incubator, only
distilled water should be used in the humidity system. Purity
ofthe water used in the
incubator humidifier reservoir must be within the
5DK Ohm to 1 Meg Ohm range to
protect, and prolong the life
of the stainless steel unit.
The use of tap water, or distilled water outside the
specifiedrange, will decrease the operating life of the
incubator
and will void the warranty.
2-1

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Forma Scientific, Inc. ______ InstallationiSet-Up
The water inlet is the 1/8" NPT connection located on the rear top left corner
of the
incubator. Water inlet pressure at the unit should be from
15 to 40 PSI. A manual shut-
off valve should be installed between the main water supply and the incubator.
To prevent mineralbuildup on heater coils and humidity
generator walls, itmay be necessary to clean the humidity
generator
and immersion heaters with a non-metallic
abrasive
pad and flush thoroughly every two or three months.
r-------------------------~~4~~e«i~~~~~~~mwuu~~------
Steam Generator.
b. Connecting the Drain Line
The cabinet's 3/8" MPT drain line connection is located on the rear (lower left side) of
the cabinet: AP.::mp-(Figme2:..1}is-inc1udedwi:th-the unitandmust be installed on the .
connection. To install the drain connection:
• Using Teflon pipe thread tape, tape the threads on the cabinet drain connection.
• Using an open end adjustable wrench, install the P-trap onto the connection. Make
sure that the trap is positioned down.
• Push a piece of 3/8" ID tubing onto the trap and direct the tubing to a convenient
drain. Install a hose clamp on the tubing,
if desired.
To cabinet drain
\ Figure
2-1
Cabinetdrain P-trap
~~
2-2

Fonna Scientific, Inc. ___________________ Installation/Set-Up
2.3 Remote Data Output
a. RS-232 Data Output
The Model 391113913 incubator is equipped with an RS-232 Serial Communication
Interface for the remote transmission
of temperature and humidity data. A tenninal strip is
located on the back
ofthe incubator for convenience. Refer to Figure 2-2 for terminal pin
identification.
Terminal Strip Connections
234
789
000000
Temperature
RS 232
Humidity
RS 232
Remote Alarm
(Shown in alarm)
Figure 2-2
IMPORTANT USER INFORMATION
Caution! Stored product should be
protected by an activated alarm system
capable
of initiating a timely response
24 hours/day. Forma Alarms provide
interconnect for centralized monitoring,
b. Remote Alarm Contacts
Remote alann connections are also included on the tenninal strip (Figure 2-2) providing
Nonnally Open (N.O.) and Nonnally Closed (N.C.) contacts. C is the Common tenninaL The
remote alann will activate when either the incubator's temperature
or humidity go out ofthe set
alann limits.
2-3

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Forma Scientific, Inc.
~ ____ ~_InstallationiSet-Up
2.4 Power Connection
The electrical junction box is located on the rear top section of the incubator. With
the junction box switch OFF, connect the incubator
to an adequate power source. See
the electrical data plate mounted on the unit for electrical specifications.
2.5 Start-Up
When the humidification system is operational, the incubator may be started. Preset
the controls
as follows:
Overtemp Safety Thermostat......................... Fully Clockwise
Undertemp Safety Thermostat........................ Fully Counterclockwise
Main Power Switch........................................ ON
Humidity Controller.......................................Desired Setpoint
Temperature Controller..................................Desired Setpoint
Door Heater ...................................................40% (factory set)
oesfovefal1peffoiTIianCe~ 0flheincuoatof; tlierefrig~eration-sWitclisliould ~be- -~
turned on for most applications. When running Low or No humidity at high
temperatures, the refrigeration switch may be turned off.
The defrost switch mustbe turned on when the temperature
set
point is 10°C, or below.
2.6 Setting the Overtemp Safety Thermostat
Al10w the chamber temperature and humidity to stabilize then set the overtemp safety
thermostat
as follows:
• Tum the overtemp control knob slowly counterclockwise until the audible alarm
sounds and the overtemp indicator lights.
•
Tum the overtemp control knob clockwise approximately two units on the scale.
The alarm should be silenced and the overtemp indicator light should go out.
The overtemp safety thermostat is now set a
few degrees above the control temperature
s
etp oint.
2-4

Forma Scientific, Inc. ___________________ --cInstallationlSet-Up
When the chamber temperature rises to the overtemp control point, the alarm system
will activate, power to the heaters will shut off, and the chamber temperature will be
maintained at the overtemp control point.
When an overtemp condition occurs, the cause must
be determined and corrected
before normal operation under the main temperature controller can be resumed.
Note: When the chamber temperature control setpoint is changed, the overtemp
safety thermostat must be reset to accommodate the change.
2.7 Setting the Undertemp Safety Thermostat
AlloWtlie chamber temperature and humIdIty to stabilize then set the undertemp
safety thermostat as follows:
•
Tum the undertemp control knob slowly clockwise until the audible alarm sounds
and the undertemp indicator lights.
• Turn the undertemp control knob counterclockwise approximately two units on the
scale. The alarm should
be silenced and the undertemp indicator light should go out.
The undertemp safety thermostat is now set a few degrees below the control
temperature setpoint. When the chambertemperature drops to the undertemp control
point, the alarm system will activate, power to the compressor will shut off, and the
chamber temperature will be maintained at the undertemp control point.
When an undertemp condition occurs, the cause must
be determined and corrected
before normal operation under the main temperature controller can
be resumed.
Note: When the chamber temperature control setpoint is changed, the undertemp
safety thermostat must be reset to accommodate the change.
2-5

Fonna Scientific, Inc.
------------
________ In.stallationlSet-Up
slotted scre\l\lS
2.8 Preparing the (optional)
CoBex Recorder
a. Installing the battery
The seven-day circular
chart recorder is located onthe
front
of the incubator cabinet
and is protected by a glass
press to
change
chart
time line
groove
(loosen only)------------,
Figure 2-3
Topreparetherecorderforoperation;~openthe~glassdoor·andsnap~theconnectoronto~the~
9-volt battery as shown in Figure 2-3. If the unit is operating, the green LED lights steady. If
the unit is not turned on, the LED blinks.
If the battery is weak ornot connected, the green LED will flash. If power is lost to the
cabinet, the LED will also flash. When replacing the 9-volt battery, use only an alkaline
style battery. Dispose
of the old battery following established environmental practices.
b. Changing the Chart Paper
• Press the Change Chart button (#3) and hold it for 1 second until the pen begins to move
to the left
ofthe chart. See Figure 2-3.
• Remove the existing chart by unscrewing the center knob securing it.
• Install the new chart, positioning it so that the correct time line coincides with the time
line groove
on the chart plate.
• Replace the center knob and screw it tightly against the chart.
2-6

Fonna Scientific, Inc. ___________________ Installation/Set-Up
c. Changing the Pen
• Using a small flat blade screwdriver, loosen the 2 screws
holding the pen
ann and remove the pen and ann as an
assembly.
<f>13J\
• Unsnap the plastic hinge securing the pen. Remove and
discard the oldpen.
~
o
-------e.-InsWl-tfle-ne-w-pen by sH:appmg-the--hinge--seeUfe:l:y-areund:----I--------I------
the pen ann. Figure 2-4
• Re-install the pen assembly
by sliding the pen ann under the screws, positioning the pen
tip in the time line groove. Tighten the screws.
• Push the Chart Change button and hold it for 1 second until the pen begins to move back
·ont<Hhe cliait~-- ... ----- ........ --
Note: Make sure that the pen is marking on the chart. It may be necessary to
gently lift the
pen onto the chart paper.
d. Calibrating the chart recorder
• Place an accurate thennometer(s) in the chamber next to the recorder's probe(s). After about
three minutes, compare the thennometer with the chart recorder. For 2 pen operations, also
compare the second thennometer.
Note:
For 2 pen operations, first select the pen you wish to calibrate. Hold down
the #1 arrow for the red (#1) pen or the #2 arrow for the blue (#2) pen,
until the light goes out. Refer to Figure 2-4. Then adjust as necessary.
If an adjustment is necessary, press either the #1 or #2 button to move the pen left or
right. The button must be held about five seconds before the pen begins to move. Release the
button when the penmatches the thennometer.
2-7

Fonna Scientific, Inc. ________ ---'InstallationiSet-Up
------------------~
2.9 Offset Calibration
• It may be necessary to calibrate the temperature or humidity controllers to match an
independenttemperature
or humidity sensor. To do so, follow the next few steps.
• Suspend an independent, calibrated sensor(s) in the center
ofthe interior chamber.
• Allow approximately 30 minutes for the incubator to stabilize.
•
Tum off the main power switch.
• Wear a grounding wrist strap to avoid damaging any
of the electrical components.
• Remove the 982 controller module(s)
by pressing in the four retaining tabs, two on the
right side, two on the left side. (Refer
to Figure 2-5) Pull the controller module out by
gently rocking it from side to side.
• Looking at the top and left side
of the controllermodule, locate the red DIP switches
indicated in Figure 2-6. Use your fingernail or a small screwdriver, to turn
offSW 2 by
---moving the-white toggle towards the front of the module as shown intheillustration.
• Return the controller into its frame and finnly press on the top and bottom
of the bezel
until all four locking tabs "click" into place.
•
Tum on the main power switch.
• Press the Up and Down Arrow keys simultaneously for 3 seconds.
The word "InPt" will
appear in the upper display, and "set"will appear inthe lowerdisplay.
• Press the Down Arrow once, then continue to press the Mode key until "LOC" appears
in the lower display. The upper displaywill show
2. Press the Down Arrow until 0
appears.
• Press the Mode key once, then the Up Arrow once. "InPt" will appear in the upper display,
and "set" will be in the lower display. Press the Mode key until
"CAL 1" appears in the
lower display. Press the Up
or Down Arrow key to either add or subtract an offset value.
This would be the difference between the actual value shown
on the controller, and the
reference sensor value.
• Press the Display key once.
• Press the up and down keys simultaneously for 3 seconds. The word "InPt" will appear
in the upper display, and "set"
will appear in the lower display.
2-8

Forma Scientific, Inc. ___________________ InstallationiSet-Up
• Press the down arrow once, then continue to press the mode key until "LOC" appears in
the lower display. The upper display will show
O. Press the up arrow until 2 appears.
• Press the display key once
• Turn
off the main power switch.
• Wear a grounding wrist strap to avoid damaging any
of the electrical components.
• Remove the 982 controller module(s) by pressing in the four retaining tabs, two on the
right side, two on the left side. (Refer to Figure 2-5) Pull the controllermodule out
by
gently rocking it from side to side.
• Looking at the top and left side
of the controller module, locate the red DIP switches
indicated in Figure 2-6. Use your fmgernail or a small screwdriver, to turn on SW 2
by
moving the white toggle towards the rear of the module as shown.
• Return the controller into its frame and firmly press
on the top and bottom of the bezel
until~allfour locking tabs "click" into place~
• Turn on the main power switch. Press Press
• Looking at the top and left side of
each controller module, locate the red
DIP switches indicated in Figure 2-6.
Side View
Figure 2-5
• With a fingernail or small screwdriver, turn off SW 2 by moving the white toggle
towards the front
of the module as shown. SW 2 is the top switch when looking at the
module from the side.
• Looking at the back
of the module, set all three ofthe DIP switches at the bottom of the
chassis to the ONposition (up as shown in Figure 2-7).
• Install the modules into their locations on the front panel and press
on the top and
bottom
of the bezel until all four locking tabs "click" into place.
• Restore electrical power to the unit.
2-9