Forma Scientific 3911 Operating And Maintenance Manual
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Forma Scientific 3911 Operating And Maintenance Manual

Reach-in incubator
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Forma Scientific, Inc.
Models 3911 and 3913
Reach-In Incubator
11 cu. ft. capacity
Operating and Maintenance Manual
Manual No: 7013911 Rev. 9

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  • Page 1 Forma Scientific, Inc. Models 3911 and 3913 Reach-In Incubator 11 cu. ft. capacity Operating and Maintenance Manual Manual No: 7013911 Rev. 9...
  • Page 2 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 or warranties with respect to this manual. In no event shall Forma Scientific, Inc.
  • Page 3 Forma® Model 3911/3913 ___________________________________________________________________________ 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 4 Forma® Model 3911/3913 ___________________________________________________________________________ Do You Need Information or Assistance on Forma Scientific Products? do, please contact us 8:00 a.m. to 7:00 p.m. (Eastern Time) at: If you 1-740-373-4763 Direct 1-888-213-1790 Toll Free, U.S. and Canada 1-740-373-4189 http://www.forma.com Internet Worldwide Web Home Page fservice@forma.com...

  • Page 5: Table Of Contents

    Forma® Model 3911/3913 ______________________________________________________________________ Contents Table of Contents Section 6 - Specifications ......6 - 1 Section 1 - Receiving ......2 - 1 Section 7 - Spare Parts .

  • Page 6: Section 1 - Receiving

    For products shipped F.O.B. Marietta, Ohio, the responsi- ionized water should be used in the humidity reservoir. Water bility of Forma Scientific, Inc. ends when the merchandise is purity should be in the resistance range of 50K Ohm/cm to 1M loaded onto the carrier’s vehicle.

  • Page 7: Alternate Water Supply For Humidity System

    3. Push a piece of 3/8” ID tubing onto the trap and direct For Model 3911, plug the provided 10 ft. power cord with the tubing to a convenient drain. Install a hose clamp on the NEMA 14-20 plug into the power outlet connection on the the tubing, if desired.

  • Page 8: Start-Up

    Forma® Model 3911/3913 ____________________________________________________________Installation and Set-Up 2.5 Start-Up 2.7 Setting the Undertemp Safety Thermostat When the humidification system is operational, the incuba- Allow the chamber temperature and humidity to stabilize, tor may be started. Preset the controls as follows: then set the undertemp safety thermostat as follows: Overtemp Safety Thermostat .

  • Page 9: Changing The Chart Paper

    Forma® Model 3911/3913 ____________________________________________________________Installation and Set-Up To prepare the recorder for operation, open the glass door and snap the connector onto the 9-volt battery as shown in Note: For 2 pen operations, first select Figure 2-3. If the unit is operating, the green LED lights steady.

  • Page 10: Honeywell Recorder (Optional)

    Forma® Model 3911/3913 ____________________________________________________________Installation and Set-Up 7. Return the controller into its frame and firmly press on 2.10 Honeywell Recorder (optional) the top and bottom of the bezel until all four locking tabs “click” into place. The Honeywell, DR 4500 Recorder is a one to four-chan- 8.
  • Page 11 Forma® Model 3911/3913_______________________________________________Configuration Records 3911,13 (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...
  • Page 12 Forma® Model 3911/3913____________________________________________Configuration Records 3911,13 (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...

  • Page 13: Section 3 - Start Up And Operation

    Forma® Model 3911/3913_____________________________________________________________Start-Up and Operation Section 3 - Start Up and Operation Overtemp Safety Control, Indicator Light, and Audible Alarm (Figure 3-2) The overtemp safety thermostat should be set slightly above the operating temperature of the incubator. In the event of an overtemp condition, the overtemp safety ther- mostat will: •...

  • Page 14: Setting The Incubator's Operating Temperature

    Forma® Model 3911/3913_____________________________________________________________Start-Up and Operation 3.2 Setting the Incubator’s Operating Temperature Dehumidify Switch and Indicator (Figure 3-3) (Figure 3-5) The dehumidify switch will enable the refrigeration system if the refrigeration switch is currently off. When The Watlow temperature controlling humidity, the dehumidification switch should be in controller’s upper numerical...

  • Page 15: Removing The Mechanical Lockout

    Forma® Model 3911/3913_____________________________________________________________Start-Up and Operation a. Removing the mechanical lockout Press the Mode key to scroll through the menus until the upper and lower displays show “2 Loc” (Figure 3-11). Press the Make sure the unit is turned down arrow key until the 2 becomes 0 (zero) as shown in off.
  • Page 16 PREVENTIVE MAINTENANCE Incubators Your Thermo Forma equipment has been thoroughly tested and calibrated before shipment. Regular preventive maintenance is important to keep your unit functioning properly. The operator should perform routine cleaning and maintenance on a regular basis. For maximum performance and efficiency, it is recommended the unit be checked and calibrated periodically by a qualified service technician.
  • Page 17 Incubators ______________________________________________________________________________ Preventive Maintenance Preventive Maintenance for 3911/3920/3940/3980 Series Incubators Refer to Action Daily Weekly Yearly Manual Section Inspect door latch, hinges and door gasket seal. 3.5 (3911), 3.4 (3920), Check the air exchange ventilator caps for adjustment; open or closed as required 3.5 (3940), 3.17 (3980)

  • Page 18: Section 4 - Routine Maintenance

    Forma® Model 3911/3913_______________________________________________________________Routine Maintenance Section 4 - Routine Maintenance 4.1 Cleaning the Incubator De-energize all potential sources of energy to this unit and lockout/tagout their controls. (O.S.H.A. Regulation, Section 1910-147.) The continued cleanliness of the stainless steel used in Forma products has a direct effect on the appearance and opera- tion of the unit.

  • Page 19: Section 5 - Service

    Forma® Model 3911/3913 _________________________________________________________________________Service Section 5 - Service 11. Pull the entire assembly out of the panel, and remove the unit. CAUTION 12. Replace the thermostat and probe. Contains Parts and Assemblies Note: Reseal the probe access hole with Permagum and retie...

  • Page 20: Setting The Door Heater Control

    Forma® Model 3911/3913 _________________________________________________________________________Service 5. Lift the top off of the steam generator and lay it to the 5.5 Setting the Door Heater Control side taking care to not crimp the copper capillary tube. 6. Siphon all of the water out of the steam generator and...

  • Page 21: Checking The Steam Generator Safety Thermostat Calibration

    Forma® Models 3940 and 3949 _________________________________________________________________Specifications Section 6 - Specifications a. Checking the Steam Generator Safety Thermostat Calibration Temperature Control* ±0.1°C @ +37°C (98.6°F) 1. Turn the slotted rheostat shaft of the temperature control Range 0°C (32°F) to +60°C (140°F) on the back of the steam generator fully clockwise.
  • Page 22 Forma® Model 3911/3913 ______________________________________________________________________Spare Parts Section 7 - Spare Parts Fittings Fill Port 1/8” FPT Part No. Description Drain Port 3/8” OD Copper 290163 RTD Temperature Sensor Unit Heat Load 230066* Fuse, Ceramic 10A 350V 115V 5500 BTUH (1600W) 290162...
  • Page 24 Forma® Model 3911/3913 _____________________________________________________________Electrical Schematics 9 - 1...
  • Page 25 Forma® Model 3911/3913 _____________________________________________________________Electrical Schematics 9 - 2...
  • Page 26 Forma® Model 3911/3913 _____________________________________________________________Electrical Schematics 9 - 3...
  • Page 27 Forma® Model 3911/3913 _____________________________________________________________Electrical Schematics 9 - 4...
  • Page 28 Forma® Model 3911/3913 _____________________________________________________________Electrical Schematics 9 - 5...
  • Page 29 Forma® Model 3911/3913 _____________________________________________________________Electrical Schematics 9 - 6...
  • Page 30 Forma Scientific, Inc. Millcreek Road, P.O. Box 649 Marietta, Ohio 45750 U.S.A. Telephone (740) 373-4763 Telefax (740) 373-4189...

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391339403949

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