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Thermo Forma 3980 Manual

Reach-in incubator 29 cu. ft. capacity
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Millcreek Road, P.O. Box 649
Marietta, Ohio 45750
U.S.A.
Telephone: (740) 373-4763
Telefax: (740) 373-4189
____________________________________
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 be performed
by qualified service personnel.
Models:
3980 and 3986
Reach-In Incubator
29 cu. ft. capacity
Manual No. 7033980
Read this Instruction Manual!
Rev. 9
Refer to the serial tag on the
rear cover of this manual

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  • Page 1 Marietta, Ohio 45750 U.S.A. Telephone: (740) 373-4763 Telefax: (740) 373-4189 ____________________________________ Models: 3980 and 3986 Reach-In Incubator 29 cu. ft. capacity Manual No. 7033980 Rev. 9 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.
  • Page 3 Thermo Forma makes no representations or warranties with respect to this manual. In no event shall Thermo Forma be held liable for any damages, direct or incidental, arising out of or related to the use of this manual.
  • Page 4 We can also provide you with a quotation on our Extended Warranty for your Thermo Forma products. Whatever Thermo Forma products you need or use, we will be happy to discuss your applications. If you are experiencing technical problems, working together, we will help you locate the problem and, chances are, correct it yourself...over the telephone without a service...
  • Page 5 Model 3980 and 3986 Incubators ___________________________________________________Safety General Safety Notes used in this Manual Important operating and/or maintenance instructions. Read the accompanying text carefully. Ce symbole attire l’attention de l’utilisateur sur des instructions importantes de fonctionnement et/ou d’entretien. Il peut être utilisé seul ou avec d’autres symboles de sécurité. Lire attentivement le texte d’accompagnement.
  • Page 6 Model 3980 and 3986 Incubators ___________________________________________________Safety Hot surface(s) present which may cause burns to unprotected skin or to materials which may be damaged by elevated temperatures Présence de surface(s) chaude(s) pouvant causer des brûlures sur la peau non protégée, ou sur des matières pouvant être endommagées par des températures élevées.

  • Page 7: Table Of Contents

    Model 3980 and 3986 Incubators _________________________________________________ Contents 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 2.1 Location ......................2-1 2.2 Connecting the Water (Humidity) System ............2-1 2.3 Attaching the Drain Lines ................2-2...
  • Page 8 Model 3980 and 3986 Incubators _________________________________________________ Contents 3.8 Dehumidify Switch and Indicator Light............3-5 3.9 Humidify Switch and Indicator Light ............3-6 3.10 Setting the CO Flowmeter .................3-6 3.11 CO Sample Port ..................3-6 3.12 Purge Level Dial ..................3-6 3.13 Purge Button and Indicating Light ...............3-7 3.14 Air Pressure Gauge ..................3-7...

  • Page 9: Section 1 - Receiving

    1.3 Responsibility for Shipping Damage For products shipped F.O.B. Marietta, Ohio, the responsibility of Thermo Forma ends when the merchandise is loaded onto the carrier's vehicle. On F.O.B. Destination shipments, Thermo Forma's and the carrier's responsibility ends when your Receiving Department personnel sign a free and clear delivery receipt.

  • Page 10: Section 2 - Installation

    Model 3980 and 3986 Incubators _________________________________Installation/Start-Up Section 2 - Installation and Start-Up 2.1 Location Locate the unit on a firm, level surface in an area of minimum ambient temperature fluctuation. A minimum of 12 inches clearance is required at the top of the incubator and a minimum of three inches clearance is required at the rear of the incubator to facilitate adequate air flow around the refrigeration system.

  • Page 11: Attaching The Drain Lines

    A copper p-trap (Figure 2-1 and Item A of Figure 2-2) is provided with the Model 3980 and must be installed. Attach vinyl tubing to the p- trap and route it to an open drain. Figure 2-1 Cabinet Drain P-trap 2.4 Connecting the CO...
  • Page 12 Model 3980 and 3986 Incubators _________________________________Installation/Start-Up To connect the CO supply: • Insert the copper tubing provided with the unit as far as it will go into the nut of the connection. • Turn the nut until it is finger tight.
  • Page 13 Model 3980 and 3986 Incubators _________________________________Installation/Start-Up 2.5 RS-232 Interface and Remote Alarm Connector The Model 3980/3986 is equipped with an RS-232 Serial Communication Interface for the remote transmission of temperature and humidity data. Remote alarm connections are also included on the terminal strip.

  • Page 14: Power Connection

    Position the incubator so the unit can be easily disconnected. For Model 3980, plug the provided 10 ft. power cord with the NEMA 14-20 plug into the power outlet connection on the back of the cabinet, then into the grounded, dedicated electrical circuit.

  • Page 15: Setting The Overtemp Safety Thermostat

    Model 3980 and 3986 Incubators _________________________________Installation/Start-Up 2.8 Setting the Overtemp Safety Thermostat Permit the chamber temperature and humidity to stabilize, then set the overtemp safety thermostat as follows: 1. Turn the overtemp control knob slowly counterclockwise until the audible alarm sounds and the overtemp indicator lights.

  • Page 16: Preparing The (Optional) Cobex Recorder

    Model 3980 and 3986 Incubators _________________________________Installation/Start-Up 2.10 Preparing the (optional) CoBex Recorder a. Installing the Chart Recorder Battery The seven-day circular chart recorder is located on the front of the incubator cabinet and is protected by a glass door. To prepare the recorder for...

  • Page 17: Changing The Pen

    Model 3980 and 3986 Incubators _________________________________Installation/Start-Up c. Changing the Pen 1. Using a small flat blade screwdriver, loosen the 2 screws holding the pen arm and remove the pen and arm as an assembly. 2. Unsnap the plastic hinge securing the pen. Remove and discard the old pen.

  • Page 18: Offset Calibration

    Model 3980 and 3986 Incubators _________________________________Installation/Start-Up 2.11 Offset Calibration It may be necessary to calibrate the temperature or humidity controllers to match an independent temperature or humidity sensor. To do so, follow the next steps. Wear a grounding wrist strap to avoid damaging any of the electrical components.
  • Page 19 Model 3980 and 3986 Incubators _________________________________Installation/Start-Up 12. Press the display key once 13. Turn OFF the main power switch. 14. 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 2-6) Pull the controller module out by gently rocking it from side to side.
  • Page 20 Model 3980 and 3986 Incubators _________________________________Installation/Start-Up 23. To enter Setup (SET on the controller display), 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.

  • Page 21: Controller Configuration

    Model 3980 and 3986 Incubators _________________________________Installation/Start-Up 2.12 Controller Configuration The controllers have been pre-configured at the factory. Reference copies of the Watlow Configuration records are included on the following pages. Do not re-configure the controllers without first consulting Thermo Forma Service Department at 1-888-213-1790.
  • Page 22 3940 (WATLOW 982) CONFIGURATION RECORD CUSTOMER: JOB NUMBER: UNT SERIAL NUMBER: CONTROL TYPE: Temperature PREPARED BY: DATE COMPLETED BY: DATE Switch Configuration: Main Boards Input 1 Board Output 3 Option board Jumper switch setting: Form B Software Configuration: Operations Menus SYS: Ei1S Ent4...
  • Page 23 3940 (WATLOW 982) CONFIGURATION RECORD CUSTOMER: JOB NUMBER: UNT SERIAL NUMBER: CONTROL TYPE: Humidity PERPARED BY: DATE: COMPLETED BY: DATE: Switch Configuration: Main Boards Input 1 Board Output 3 Option board Jumper switch setting: Form B Software Configuration: Operations Menus SYS: Ei1S Ent4...
  • Page 24 HONEYWELL TRULINE CONFIGURATION RECORD SHT 1 OF 4 CUSTOMER: JOB NUMBER: UNIT SERIAL #: CONTROL TYPE: PREPARED BY: DATE: COMPLETED BY: DATE: GROUP FUNCTION VALUE OR GROUP FUNCTION VALUE OR PROMPT PROMPT SELECTION PROMPT PROMPT SELECTION TUNING1 PROP BD or CHART CHRTSPD 7 DAY...
  • Page 25 HONEYWELL TRULINE CONFIGURATION RECORD SHT 2 OF 4 GROUP FUNCTION VALUE OR GROUP FUNCTION VALUE OR PROMPT PROMPT SELECTION PROMPT PROMPT SELECTION PEN4 PEN4 DISABLE INPUT4 DECIMAL PEN4IN UNITS CHART4HI ENGUNITS CHART4LO IN4TYPE PEN4ON XMITTER PEN4OFF IN4HI MAJORDIV IN4LO MINORDIV CUTOFF4 RNG4TAG INPTCOMP...
  • Page 26 HONEYWELL TRULINE CONFIGURATION RECORD SHT 3 OF 4 GROUP FUNCTION VALUE OR GROUP FUNCTION VALUE OR PROMPT PROMPT SELECTION PROMPT PROMPT SELECTION CONTROL2 PID SETS ALARMS A1S1 VAL SW VALUE A1S2 VAL SP SOURC A1S1 TYPE NONE RATIO A1S2 TYPE NONE BIAS A1S1 HL...
  • Page 27 HONEYWELL TRULINE CONFIGURATION RECORD SHT 4 OF 4 GROUP FUNCTION VALUE OR GROUP FUNCTION VALUE OR PROMPT PROMPT SELECTION PROMPT PROMPT SELECTION EVNT MSG EVENT 1 NONE MESSAGE 1 POSITION 1 EVENT 2 NONE MESSAGE 2 POSITION 2 EVENT 3 NONE MESSAGE 3 POSITION 3...

  • Page 28: Section 3 - Control Panel Operation

    Model 3980 and 3986 Incubators _______________________________Control Panel Operation Section 3 - Control Panel Operation Figure 3-1 Control Panel of the Model 3980 Incubator 3.1 Main Power Switch and Indicator Light The main power switch controls power to the incubator control systems. The main power indicator lights when the power switch is on and the unit is receiving power.

  • Page 29: Overtemp Safety Control, Indicator Light And Audible Alarm

    Model 3980 and 3986 Incubators _______________________________Control Panel Operation The defrost switch must be turned on when the temperature setpoint is 10°C, or below. The defrost indicator lights when the defrost switch is on and the incubator is in a defrost cycle.

  • Page 30: Undertemp Safety Control, Indicator Light And Audible Alarm

    Model 3980 and 3986 Incubators _______________________________Control Panel Operation 3.5 Undertemp Safety Control, Indicator Light and Audible Alarm The undertemp safety thermostat should be set slightly lower than the operating temperature of the incubator. In the event of an undertemp condition, the undertemp safety thermostat will: 1.
  • Page 31 Model 3980 and 3986 Incubators _______________________________Control Panel Operation Dev LED When lit, shows the deviation from the current setpoint in the lower display. % Out LED When lit, shows the current percent output in the lower display. Display Key Press the display key to enter the Display loop. Refer to Pages 21 and 22 of the Watlow manual.

  • Page 32: Audible Humidity Alarm And Indicator

    Model 3980 and 3986 Incubators _______________________________Control Panel Operation 3.7 Audible Humidity Alarm and Indicator The humidity alarm is a function of the humidity controller. When the cabinet humidity goes outside the set parameters of the controller, L3 indicator on the controller lights, the audible alarm sounds and the humidity alarm indicator on the control panel lights.

  • Page 33: Setting The Co 2 Flowmeter

    Model 3980 and 3986 Incubators _______________________________Control Panel Operation 3.10 Setting the CO Flowmeter The CO flowmeter controls the flow of CO into the incubator chamber. A float ball indicates the CO flow rate against the 0 to 100 arbitrary scale. To provide approximately 5% of CO content in the chamber, set the scale to 40.

  • Page 34: Air Pressure Gauge

    Model 3980 and 3986 Incubators _______________________________Control Panel Operation 3.14 Air Pressure Gauge The CO is propelled inside the chamber by air pumps. The air pressure gauge indicates the approximate air pump pressure in a range from 0 to 5 PSIG.

  • Page 35: Section 4 - Maintenance

    (O.S.H.A. Regulation, Section 1910-147.) The continued cleanliness of the stainless steel used in Thermo Forma products has a direct effect on the appearance and operation of the unit. Use the mildest cleaning procedure that will do the job effectively. Clean the outside of the incubator with soap and water or with any non-abrasive commercial spray cleaner.

  • Page 36: Section 5 - Service

    Model 3980 and 3986 Incubators _____________________________________________Service Section 5 - Service Servicing must be performed by qualified service personnel only! 5.1 Access to the Electrical Components De-energize all potential sources of energy to this unit and lockout/tagout their controls. (O.S.H.A. Regulation, Section 1910-147.) To gain access to the electrical components, remove the two screws located on the left side of the control panel with a phillips screwdriver.

  • Page 37: Replacing The Humidity/Temperature Sensor

    Model 3980 and 3986 Incubators _____________________________________________Service 4. Remove the 15" copper capillary overtemp probe by extracting the two plastic clips that hold the probe in place. 5. Open the control panel by removing the two screws located on the left side of the control panel.

  • Page 38: Replacing The Optional Recorder And Probe(S)

    Model 3980 and 3986 Incubators _____________________________________________Service 5. When replacing the humidity sensor, be sure to mount the probe at the same angle as it was originally mounted. 5.4 Replacing the Optional Recorder and Probe(s) De-energize all potential sources of energy to this unit and lockout/tagout their controls.

  • Page 39: Removing The Top Section

    Model 3980 and 3986 Incubators _____________________________________________Service 5.5 Removing the Top Section De-energize all potential sources of energy to this unit and lockout/tagout their controls. (O.S.H.A. Regulation, Section 1910-147.) If it becomes necessary to remove the top of the incubator when moving it through low doorways, use the following procedure: •...

  • Page 40: Setting The Door Heater Control

    Model 3980 and 3986 Incubators _____________________________________________Service 6. Loosen the top gasket around each of the air exhaust vents by turning the screw. 7. Remove the eight screws from the top cover of the incubator. 8. Remove the four screws from each of the vent caps on the top cover of the incubator.

  • Page 41: Replacing The Air Pump(S)

    Model 3980 and 3986 Incubators _____________________________________________Service The infinite heater control is located in the right side of the incubator top compartment behind the control panel door. The heater varies the amount of door heat from no heat (zero) to full heat (100) as indicated by the control dial face. If the knob is turned past zero, a “click”...
  • Page 42 Model 3980 and 3986 Incubators _____________________________________________Service 1. Remove all contents from the incubator, shut it off and disconnect the power. heater safety blue thermostat wire capillary tube reservoir-steam generator connecting tube heater thumbscrew (4) float control heater reservoir steam generator...
  • Page 43 Model 3980 and 3986 Incubators _____________________________________________Service Figure 5-2 capillary tube boiler standpipe float float rubber float gasket valve 6. Lift the top off the steam generator and lay it aside, taking care not to crimp the copper capillary tube. 7. Siphon all of the water out of the steam generator and clean it with a good quality laboratory detergent and disinfectant.
  • Page 44 Model 3980 and 3986 Incubators _____________________________________________Service 12. Replace the top of the steam generator and alternately tighten the four thumbscrews to evenly compress the rubber gasket. Calibration Check for Steam Generator Safety Thermostat 1. Turn the slotted rheostat shaft of the temperature control on the back of the steam generator fully clockwise.

  • Page 45: Section 6 - Specifications

    Model 3980 and 3986 Incubators ______________________________________Specifications Section 6 - Specifications Temperature Control ±0.1°C @ +37°C (98.6°F) Construction Range 0°C (32°F) to +60°C (140°F) Volume 29 cu. ft. (823 liters) Sensor Interior304 2B stainless steel Controller Digital electronic Exterior Cold rolled steel...
  • Page 46 Model 3980 and 3986 Incubators ______________________________________Specifications Fittings Electrical Fill Port 1/4" compression 3980 208-220VAC, 60Hz, 1PH, 3P, 4W, Drain Port 3/8" O.D. copper 14.0 FLA CO 2 Inlet 1/4" compression 3986 220-240VAC, 50/60Hz, 1PH, 2P, Unit Heat Load 14.0 FLA...
  • Page 47 Model 3980 and 3986 Incubators ______________________________________Specifications...
  • Page 48 Steam Generator 620430 Heater, Steam Generator 980052 Float 270010 Thermostat, B10, (Steam Generator) 901900 Air Pump, 4.1 LPM, 115V 60Hz (Model 3980) 184022 Air Pump, 4.1 LPM, 115V 50Hz (Model 3986) 190467 Copper P-Trap 195080 Water Strainer 1/4 FPT 475510...

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3986

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