Forma Scientific 3940 Operating And Maintenance Manual
Reach-in incubator
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- Instruction manual (95 pages) ,
- Manual (63 pages) ,
- Operating and maintenance manual (18 pages)
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Summary of Contents for Forma Scientific 3940
- Page 1 Forma Scientific, Inc. Models 3940 and 3949 29 cu. ft. capacity Reach-In Incubator Operating and Maintenance Manual Manual No: 7023940 Rev. 0...
- Page 2 Forma Scientific, Inc. makes no repre- sentations or warranties with respect to this manual. In no event shall Forma Scientific, Inc. be held liable for any damages, direct or incidental, arising out of or related to the use of this manual.
- Page 3 Models 3940 and 3949 ______________________________________________________________________________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 Models 3940 and 3949 _________________________________________________________________________Service 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...
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Page 5: Table Of Contents
Models 3940 and 3949 ___________________________________________________________________Table of Contents Table of Contents Section 1 - Receiving ......2 - 1 Section 4 - Routine Maintenance . -
Page 6: Section 1 - Receiving
The humidification For products shipped F.O.B. Marietta, Ohio, the responsi- heater will overheat, and the overtemp safety ther- bility of Forma Scientific, Inc. ends when the merchandise is mostat will shut the humidification system down. loaded onto the carrier’s vehicle. -
Page 7: Connecting The Drain Line
Allow the chamber temperature and humidity to stabilize then set the overtemp safety thermostat as follows: The Model 3940/3949 incubator is equipped with an RS- 1. Turn the overtemp control knob slowly counterclock- 232 Serial Communication Interface for the remote transmis- wise until the audible alarm sounds and the overtemp sion of temperature and humidity data. -
Page 8: Setting The Undertemp Safety Thermostat
Models 3940 and 3949 ________________________________________________________________Installation and Set-Up 2.8 Setting the Undertemp Safety Thermostat Allow the chamber temperature and humidity to stabilize, then set the undertemp safety thermostat as follows: 1. Turn the undertemp control knob slowly clockwise until the audible alarm sounds and the undertemp indicator lights. -
Page 11: Section 3 - Control Panel Operation
Models 3940 and 3949_________________________________________________________________Control Panel Operation Section 3 - Control Panel Operation 3.4 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 thermostat will: •... -
Page 12: Dehumidify Switch And Indicator
Models 3940 and 3949_________________________________________________________________Control Panel Operation LI, L2, L3, L4 3.7 Dehumidify Switch and Indicator (Figure 3-3) When lit, these LEDs indicate when Output #1, #2, #3, or #4 are respectively active. Outputs can be configured as: When the dehumidify switch is on, power to the humidifi-... -
Page 13: Recorder (Optional)
Models 3940 and 3949_________________________________________________________________Routine Maintenance Section 4 - Routine Maintenance MODE KEY Steps the control through the menus. Enter new data after pressing the Mode key. De-energize all potential sources of energy to this unit and lockout/tagout their controls. (O.S.H.A. - Page 14 Models 3940 and 3949_________________________________________________________________Routine Maintenance Remove the four large plastic nuts securing the lid of the steam generator. The heaters and thermostat are mounted through the lid. Remove the lid to gain access to the heaters. Clean the humidity generator with Lime-Away™ or similar product, following the manufacturer’s instructions on the pack-...
- Page 15 The following is a condensed list of preventive maintenance requirements. See the specified section of the instruction manual for further details. Forma Scientific, Inc. has qualified service technicians, using NIST traceable instruments, available in many areas. For more information on Preventive Maintenance or Extended Warranties, please contact the Forma Scientific Service Department.
- Page 16 Models 3940 and 3949_______________________________________________________________________________________________________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.
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Page 17: Section 5 - Service
Models 3940 and 3949 _____________________________________________________________________________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 18: Removing The Top Section
Models 3940 and 3949 _____________________________________________________________________________Service 10. Replace the recorder with the correct Forma part. 9. Remove the nine 5/16” x 4” hex head bolts, lock wash- ers, and two flatwashers which secure the top assembly Note: When replacing the recorder and probe(s), retie the probe to the cabinet. -
Page 19: Section 6 - Specifications
Models 3940 and 3949 _______________________________________________________________________Specifications Section 6 - Specifications Humidity Control ±5% RH Temperature Range Above ambient to 95% Control ±0.1°C @ +37°C (98.6°F) Sensor Bulk polymer Range 0°C (32°F) to +60°C (140°F) Controller Electronic, direct set in % RH... -
Page 20: Section 7 - Spare Parts
Models 3940 and 3949 _________________________________________________________________________Spare Parts Section 7 - Spare Parts Part No. Description 231159 RH/ Temp Control Signal Conditioner 230066* Fuse, Ceramic 10A 350V 231161 RH Sensor 231186 Controller, Watlow 982 Auto Tune 320277 Triac, 25A 285615* Fuse, Fusetron 25A...
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