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Thermo Forma 3911 Operating And Maintenance Manual

Environmental chamber 11 cu. ft. capacity
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Models 3911 and 3913
Environmental Chamber
11 cu. ft. capacity
Operating and Maintenance Manual
Manual No: 7013911 Rev. 15

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Summary of Contents for Thermo Forma 3911

  • Page 1 Models 3911 and 3913 Environmental Chamber 11 cu. ft. capacity Operating and Maintenance Manual Manual No: 7013911 Rev. 15...
  • 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. Thermo Forma makes no representations or war- ranties with respect to this manual. In no event shall Thermo Forma be held liable for any damages, direct or incidental, aris- ing out of or related to the use of this manual.
  • Page 3 Model 3911/3913 ________________________________________________________________________________Safety 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 Model 3911/3913 ________________________________________________________________________________Service...

  • Page 5: Table Of Contents

    Model 3911/3913 _____________________________________________________________________________ Contents Table of Contents Section 6 - Specifications ......6 - 1 Section 1 - Receiving ......2 - 1 1.1 Preliminary Inspection .

  • Page 6: Section 1 - Receiving

    Model 3911/3913 ____________________________________________________________________Installation and Set-Up Section 1 - Receiving Section 2 - Installation and Set-Up 1.1 Preliminary Inspection 2.1 Location This incubator was thoroughly inspected and carefully Locate the unit on a firm, level surface in an area of mini- packed prior to shipment and all necessary precautions were mum ambient temperature fluctuation.

  • 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

    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

    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)

    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 Models 3911/3913 ________________________________________________________________Installation and Set-Up 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 Models 3911/3913 ________________________________________________________________Installation and Set-Up 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

    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

    The con- trollers should not be re-configured without first consulting Thermo Forma Service Department, at 1-888-213-1790. 3 - 2...

  • Page 15: Removing The Mechanical Lockout

    Removing the Software Lockout of the incubator and void the warranty. Contact the Thermo Forma Service Department, at 1-888- Press the up arrow and down arrow keys at the same time 213-1790.

  • Page 16: Section 4 - Routine Maintenance

    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 17 The following is a condensed list of preventive maintenance requirements. See the specified section of the instruction manual for further details. Thermo Forma has qualified service technicians, using NIST traceable instruments, available in many areas. For more information on Preventive Maintenance or Extended Warranties, please contact us at the number below.
  • Page 18 Models 3911 and 3913_______________________________________________________________________________________________________Preventive Maintenance Preventive Maintenance for Model 3940/3949 Refer to Manual Section Action Daily Weekly Yearly Inspect door latch, hinges and door gasket seal Check air exchange ventilator caps for adjustment; open or close as required Perform a complete decontamination procedure. Wipe down interior, shelves, Between Experiments side panels with disinfectant.

  • Page 19: Section 5 - Service

    8. Pull the overtemp knob on the control panel off. it carefully out from the front of the control panel. 9. Remove the two screws that hold the overtemp assembly 10. Replace the recorder with the correct Thermo Forma to the control panel. part.

  • Page 20: Setting The Door Heater Control

    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

    Model 3911/3913 _______________________________________________________________________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 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 RH/Temp Control Signal Conditioner...
  • Page 25 Model 3911/3913 _______________________________________________________________________Electrical Schematics 9 - 1...
  • Page 26 Model 3911/3913 _______________________________________________________________________Electrical Schematics 9 - 2...
  • Page 27 Model 3911/3913 _______________________________________________________________________Electrical Schematics 9 - 3...
  • Page 28 Model 3911/3913 _______________________________________________________________________Electrical Schematics 9 - 4...
  • Page 29 Model 3911/3913 _______________________________________________________________________Electrical Schematics 9 - 5...
  • Page 30 Model 3911/3913 _______________________________________________________________________Electrical Schematics 9 - 6...
  • Page 31 Model 3911/3913 _______________________________________________________________________________________________________Electrical Schematics...
  • Page 32 Model 3911/3913 _______________________________________________________________________________________________________Electrical Schematics 9 - 8...
  • Page 33 Model 3911/3913 _______________________________________________________________________________________________________Electrical Schematics 9 - 9...
  • Page 34 Thermo Forma Millcreek Road, P.O. Box 649 Marietta, Ohio 45750 U.S.A. Telephone (740) 373-4763 Telefax (740) 373-4189...

This manual is also suitable for:

3913

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