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Thermo Electron 3920 Operating And Maintenance Manual

Forma environmental chamber
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Model: 3920
Forma Environmental Chamber
Operating and Maintenance Manual
Manual No: 7043920 Rev. 3

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  • Page 1 Model: 3920 Forma Environmental Chamber Operating and Maintenance Manual Manual No: 7043920 Rev. 3...
  • Page 2 The material in this manual is for information purposes only. The contents and the product it describes are subject to change with- out notice. Thermo Electron makes no representations or war- ranties with respect to this manual. In no event shall Thermo be held liable for any damages, direct or incidental, arising out of or related to the use of this manual.
  • Page 3 Environmental Chamber ______________________________________________________________________________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. Wichtige Betriebs- und/oder Wartungshinweise.
  • Page 4 Environmental Chamber _________________________________________________________________________Service...
  • Page 5 Environmental Chamber___________________________________________________________________________ Warranty Notes Information You Should Know Before Requesting Warranty Service • Locate the model and serial numbers. A serial tag is located on the unit itself and on the operating manu- al shipped with the unit. • For equipment service or maintenance, or with technical or special application inquiries, contact Technical Services at 1-888-213-1790 or 1-740-373-4763 (USA and Canada).

  • Page 6: Table Of Contents

    Environmental Chamber ___________________________________________________________________Table of Contents Table of Contents Section 1 - Receiving ......1 - 1 Section 4 - Routine Maintenance .

  • Page 8: Section 1 - Receiving

    For products shipped F.O.B. Marietta, Ohio, the responsi- packed prior to shipment and all necessary precautions were bility of Thermo Electron Corporation ends when the merchan- taken to ensure its safe arrival. Immediately upon receipt, dise is loaded onto the carrier’s vehicle.

  • Page 10: Section 2 - Installation And Set-Up

    Environmental Chamber ________________________________________________________________Installation and Set-Up d. Leveling the Unit Section 2 - Installation and Set-Up Place a bubble-type level on a shelf inside the incubator. 2.1 Location Adjust the feet as needed; counterclockwise to lengthen or clockwise to shorten. Level the unit front-to-back and left-to- a.

  • Page 11: Power Connection

    For Model 3920, plug the provided 10 ft. power cord with Note: The overtemp control is not directly calibrated. The num- the NEMA 14-20 plug into the grounded dedicated electrical cir- bers on the dial are for reference only.

  • Page 12: Changing The Chart Paper

    Environmental Chamber ________________________________________________________________Installation and Set-Up 2.9 Honeywell Recorder (optional) The Honeywell, DR 4500 Recorder is a one to four-chan- nel microprocessor-based, circular chart recorder. The recorder is capable of recording both temperature and humidity and printing alphanumeric chart data on blank heat- sensitive chart.

  • Page 13: Setting The Co

    Environmental Chamber ________________________________________________________________Installation and Set-Up b. Setting the CO Content The Watlow SD CO controller's upper display shows the actual CO content inside the chamber. The lower display shows the CO setpoint. Before setting the CO Content, allow the chamber temper- ature and humidity to stabilize.

  • Page 14: Section 3 - Start Up And Operation

    Environmental Chamber_________________________________________________________________Start-Up and Operation Section 3 - Start Up and Operation Figure 3-1, Environmental Chamber Control Panel shown with optional CoBex Recorder and optional control 3.1 The Control Panel Figure 3-3 Main Power Switch and Indicator Light (Figure 3-2) The main power switch controls power to the incubator. Defrost Switch and Indicator Light (Figure 3-3) The main power indicator lights when the power switch is on and the unit is receiving power.

  • Page 15: Setting The Operating Temperature (Figure 3-4)

    Environmental Chamber_________________________________________________________________Start-Up and Operation Changing the Setpoint Overtemp Safety Control, Indicator Light, and Audible Alarm (Figure 3-3) To raise or lower the setpoint, press the Up or Down Arrow. Temperatures are set in .1°C increments. The overtemp safety thermostat should be set slightly above the operating temperature of the incubator.

  • Page 16: Section 4 - Routine Maintenance

    Environmental Chamber__________________________________________________________________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 this unit has a direct effect on the appearance and operation of the unit.
  • Page 18 The following is a condensed list of preventive maintenance requirements. See the specified section of the instruction manual for further details. Thermo Electron 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 19 Preventive Maintenance for Environmental Chambers 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 20: Section 5 - Service

    Environmental Chamber _____________________________________________________________________________Service Section 5 - Service 5.3 Replacing the Temperature Sensor 1. Locate the probe mounting plate in the center of the right side of the incubator interior. 2. Open the mounting plate by removing the screws that hold it in place. 3.

  • Page 21: Removing The Software Lockout

    Environmental Chamber _____________________________________________________________________________Service Looking at the top of Press the Mode key to scroll through the menus until the Figure 5-2 the module, locate the red upper and lower displays show “2 Loc” (Figure 5-5). Press the DIP switch indicated in Down arrow key until the “2”...

  • Page 22: Replacing The Optional Recorder And Probe(S)

    Environmental Chamber _____________________________________________________________________________Service 4. Turn off the main power switch. 5. Remove the 982 controller module(s) by pressing in the 5. Wear a grounding wrist strap to avoid damaging any of four retaining tabs, two on the right side, two on the left the electrical components.

  • Page 23: Calibrating The Recorder

    Environmental Chamber _____________________________________________________________________________Service a. Calibrating the Recorder 5.7 CO Controller Calibration Place an accurate thermometer(s) in the chamber next to If it should become necessary to calibrate the CO con- the recorder’s probe(s). After about three minutes, compare the troller, perform the following procedure. thermometer with the chart recorder.
  • Page 24 Environmental Chamber ___________________________________________________________________________Service WATLOW 982 CONFIGURATION RECORD CUSTOMER: 3920 & 3940 (RELEASE 9) JOB NUMBER: SERIAL NUMBER: CONTROL TYPE: TEMPERATURE (RTD) PREPARED BY: DATE: 11/05/03 COMPLETED BY: DATE: Switch Configuration: (1)*** Main Boards Input 1 Board Software Configuration: Setup Menus...
  • Page 25 Environmental Chamber ___________________________________________________________________________Service WATLOW SD CONFIGURATION RECORD CUSTOMER: 1900226 & 1900227 KITS JOB NUMBER: UNIT SERIAL NUMBER: CONTROL TYPE: PREPARED BY: DATE: 8/2/2004 SETUP PAGE: Press UP and DOWN arrow for three seconds. SP.hı 20.0 Ot 2 Pr.AL hYS 2 P.dec Ftr.E both...

  • Page 26: Section 6 - Specifications

    Environmental Chamber _______________________________________________________________________Specifications Section 6 – Specifications Temperature Fittings Control ±0.3°C @ +25°C to +37°C Drain Port 3/8” OD Copper Range 0°C (32°F) to +60°C (140°F) Sensor Unit Heat Load 115V 5500 BTUH (1600W) Controller Digital electronic proportional 220V 6000 BTUH (1750W) Setpoint Digital Display...

  • Page 28: Section 7 - Spare Parts

    Environmental Chamber _________________________________________________________________________Spare Parts Section 7 - Spare Parts Part No. Description 290163 RTD Temperature Sensor 230066* Fuse, Ceramic 10A 350V 400051 Power Supply 290162 RH Sensor 231221 Watlow 982 Controller 231224 Watlow SD Controller 270129 Arc filters for Watlow 982 controller 320277 Triac, 25A 285614...
  • Page 32 Environmental Chamber __________________________________________________________________Electrical Schematics 9 - 1...
  • Page 33 Environmental Chamber __________________________________________________________________Electrical Schematics 9 - 2...
  • Page 34 Environmental Chamber __________________________________________________________________Electrical Schematics 9 - 3...
  • Page 38 Thermo Electron Corporation Controlled Environment Equipment Millcreek Road, P.O. Box 649 Marietta, Ohio 45750 U.S.A. Telephone (740) 373-4763 Telefax (740) 373-4189...

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3940

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