1. Manuals
  2. Brands
  3. Forma Scientific Manuals
  4. Accessories
  5. 3980
  6. Manual

Forma Scientific 3980 Manual

Reach-in incubator
Hide thumbs Also See for 3980:
Table of Contents

Advertisement

Quick Links

Download this manual
P.O. Box 649
Marietta, Ohio 45750
USA
Model 3980/3986
Reach-In Incubator
Manual No. 7013980
CAUTION! 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.
be held liable for any damages, direct or incidental, arising out of or related to the use of this
manual.
CAUTION! Read this instruction manual. Failure to read, understand, and follow manual
instructions 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.
May 1992

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the 3980 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Forma Scientific 3980

Summary of Contents for Forma Scientific 3980

  • Page 1 Forma Scientific Inc. makes no representations 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 2: Table Of Contents

    TABLE OF CONTENTS SECTION 1 - RECEIVING 1.1 Preliminary Inspection 1.2 Visible Loss or Damage 1.3 Concealed Loss or Damage 1.4 Responsibility for Shipping Damage SECTION 2 - INSTALLATION & START-UP 2.1 Location 2.2 Water(Humidity System) and Drain Connections 2.3 Power Connection 2.4 Start-Up Procedure 2.5 Setting the Overtemp Safety Thermostat 2.6 Setting the Undertemp Safety Thermostat...
  • Page 3 SECTION 5 - SERVICE 5.1 Access to Electrical Components 5.2 Replacing the Overtemp & Undertemp Probe and Thermostat 5.3 Replacing the Humidity/Temperature Sensor 5.4 Replacing the Optional Recorder and Probe(s) 5.5 Removing the Top Section 5.6 Calibration Offset 5.7 Configuring the Controller 5.8 Handling Error Codes on the Microprocessor 5.9 Replacing the Air Pump(s) SUPPLEMENTS, PARTS LISTS, SCHEMATICS, &...

  • Page 4: Section 1 - Receiving

    SECTION 1 - RECEIVING Table of Contents 1.1 Preliminary Inspection 1.2 Visible Loss or Damage 1.3 Concealed Loss or Damage 1.4 Responsibility for Shipping Damage...

  • Page 5: Preliminary Inspection

    On F.O.B. Destination shipments, Forma Scientific's and the carrier's responsibility ends when your Receiving Department personnel sign a free and clear delivery receipt. Whenever possible, Forma Scientific, Inc. will assist in settling claims for loss or in-transit damage.

  • Page 6: Section 2 - Installation & Start-Up

    SECTION 2 - INSTALLATION & START-UP Table of Contents 2.1 Location 2.2 Water(Humidity System) and Drain Connections 2.3 Power Connection 2.4 Start-Up Procedure 2.5 Setting the Overtemp Safety Thermostat 2.6 Setting the Undertemp Safety Thermostat...

  • Page 7: Location

    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 3 inches clearance is required at the rear of the incubator to facilitate adequate air flow around the refrigeration system.

  • Page 8: Start-Up Procedure

    2.4 START-UP PROCEDURE Once the humidification system is operational, the incubator may be placed into operation. Preset the controls as follows: Overtemp Safety Thermostat ....10 (Fully Clockwise) Undertemp Safety Thermostat .....10 (Fully Clockwise) Main Power Switch............ON Humidity Controller........Desired Setpoint Temperature Controller.......Desired Setpoint Flowmeter ..............

  • Page 9: Setting The Undertemp Safety Thermostat

    2.6 SETTING THE UNDERTEMP SAFETY THERMOSTAT After the chamber temperature and humidity have stabilized, the undertemp safety thermostat may be set as follows: 1) Turn the undertemp control knob slowly counterclockwise until the audible alarm sounds and the undertemp indicator light comes on. 2) Turn the undertemp control knob clockwise approximately two units on the arbitrary scale.

  • Page 10: Section 3 - Control Panel Operation

    SECTION 3 - CONTROL PANEL OPERATION Table of Contents 3.1 Main Power Switch & Indicator Light 3.2 Refrigeration Switch & Indicator Light 3.3 Defrost Switch & Indicator Light 3.4 Temperature/Humidity Controllers 3.5 Controller Operation 3.6 Overtemp Safety Control, Indicator Light & Audible Alarm 3.7 Undertemp Safety Control, Indicator Light &...

  • Page 11: Main Power Switch & Indicator Light

    3.1 MAIN POWER SWITCH & INDICATOR LIGHT The main power switch controls power to the incubator control systems. The main power indicator light is activated when the power switch is in the ON position, and the unit is receiving power. 3.2 REFRIGERATION SWITCH &...

  • Page 12: Controller Operation

    3.5 CONTROLLER OPERATION Use the following figures to learn the nature and function of the microprocessor controller. Upper Display Red, 0.3" high LED, seven segment, three or four digit display indicating either process actual temperature, the operating parameter values, or an open sensor. NOTE: The upper display will always show the process value after one minute without key strokes.
  • Page 13 OVERVIEW OF THE KEYPAD AUTO/MAN Key UP/DOWN Keys MODE Key Pressed once, it clears When pressed simultaneously Steps the control through the any latched alarms. If the for 3 seconds, the Setup Menu Operating Menu; also, in the key is pressed again appears displaying the LOC Auto mode, enters new data within 5 seconds, the...

  • Page 14: Overtemp Safety Control, Indicator Light & Audible Alarm

    3.6 OVERTEMP SAFETY CONTROL, INDICATOR LIGHT & AUDIBLE ALARM The overtemp safety thermostat is designed for a temperature slightly above the operating temperature of the incubator. In the event of an overtemp condition, the overtemp safety thermostat will: 1) Activate the audible alarm and the overtemp indicator light. 2) Interrupt power to the heaters and maintain the temperature at the overtemp control point.

  • Page 15: Dehumidify Switch & Indicator Light

    3.9 DEHUMIDIFY SWITCH & INDICATOR LIGHT When the dehumidify switch is in the ON position, power to the humidification system heaters is interrupted, and the refrigeration system is energized, to provide control for drying. The dehumidify light comes on when the dehumidify switch is in the "ON" position. If the dehumidify switch is in the ON position when a defrost cycle occurs, the dehumidify light may cycle on and off to reflect the action of the humidity controller.

  • Page 16: Purge Button

    3.13 PURGE BUTTON The purge button permits manual injection of CO into the chamber, to replace CO loss due to door openings, etc. The purge duration is dependent upon the purge level dial setting. NOTE: The CO purge button should be pressed to regain CO percentage after each incubator door opening.

  • Page 17: Section 4 - Routine Maintenance

    SECTION 4 - ROUTINE MAINTENANCE Table of Contents 4.1 Cleaning the Incubator 4.2 Cleaning Stainless Steel 4.3 Cleaning the Humidity Generator & Immersion Heaters...

  • Page 18: Cleaning The Incubator

    Information about disinfectants recommended by Forma Scientific, Inc. is included as a supplement in this manual. The cabinet exterior may be cleaned with soap and water or with any non-abrasive commercial spray cleaner.

  • Page 23: Cleaning The Humidity Generator & Immersion Heaters

    4.3 CLEANING THE HUMIDITY GENERATOR & IMMERSION HEATERS Depending upon the quality of water used in the humidification system, it may be necessary to clean the humidity generator and immersion heaters, every 2 to 3 months. CAUTION! Always turn power "OFF" and allow humidity system to cool, before attempting to clean the humidity generator.
  • Page 24 SECTION 5 - SERVICE Table of Contents 5.1 Access to Electrical Components 5.2 Replacing the Overtemp & Undertemp Probe and Thermostat 5.3 Replacing the Humidity/Temperature Sensor 5.4 Replacing the Optional Recorder and Probe(s) 5.5 Removing the Top Section 5.6 Calibration Offset 5.7 Configuring the Controller 5.8 Handling Error Codes on the Microprocessor 5.9 Replacing the Air Pump(s)

  • Page 25: Access To Electrical Components

    5.1 ACCESS TO ELECTRICAL COMPONENTS DANGER! Electrical servicing should be performed by qualified service personnel only. Power must always be disconnected before the control panel is opened. Access to all electrical components is obtained by opening the front of the control panel. Grasp the left side of the control panel housing and pull it gently, but firmly, up and out.

  • Page 26: Replacing The Humidity/Temperature Sensor

    5.3 REPLACING THE HUMIDITY/TEMPERATURE SENSOR DANGER! High voltage is present behind the control panel. Sensor replacement should be accomplished by qualified electrical service personnel only. 1) Disconnect the incubator from the power source. 2) Locate the probe mounting plate in the center of the right side of the incubator interior. 3) Open the mounting plate by removing the screws that hold it in place.

  • Page 27: Removing The Top Section

    8) Pull the probe(s) carefully up through the hole. 9) Follow the probe cable(s) to the back of the recorder, and carefully clip any plastic ties holding the cable(s) to other wiring. 10) Remove the three screws holding the recorder in place, and pull it carefully out from the front of the control panel.
  • Page 28 PROCEDURE 1) Remove all test material from the incubator chamber. 2) All temperature and/or humidity sensing probes are mounted on a probe mounting bracket located inside the incubator chamber. The bracket is secured to the duct sheet on the right side of the chamber.

  • Page 29: Calibration Offset

    11) Carefully and slowly lift the entire top assembly up and off the lower chamber section. The top assembly and bottom chamber section separate where the black gasket was located. As the top assembly is lifted off, the capillaries and sensing bulbs will need to be carefully guided and threaded out of the chamber area.
  • Page 30 FIGURE 1...

  • Page 31: Configuring The Controller

    SETUP PARAMETERS At the top of the menu, the controller displays the user level of operation in the Upper display, and LOC parameter in the Lower display. When pressing the MODE key, the value of the next parameter appears in the Upper display, and the parameter itself in the Lower display. LOCK Selects the level of operator lock-out.

  • Page 36: Handling Error Codes On The Microprocessor

    5.8 HANDLING ERROR CODES ON THE MICROPROCESSOR NOTE: Microprocessor errors may originate from the following conditions: 1) Electrical noise 2) A noise event 3) Excess environmental moisture 4) Excess environmental temperature If error cause is not otherwise apparent, check for the following listed below. •...

  • Page 37: Replacing The Air Pump(S)

    5.9 REPLACING THE AIR PUMP(S) DANGER! High voltage is present behind the control panel. Sensor replacement should be accomplished by qualified electrical service personnel only. 1. Disconnect the incubator from the power source. 2. Access to the air pump(s) is obtained by opening the front of the control panel. Grasp the left side of the control panel housing and pull it gently, but firmly, up and out.
  • Page 38 PARTS STOCK # DESCRIPTION 231161 Sensor RH/Temp 231159 RH/Temp Control Signal Board 231160 Controller, Microprocessor 250013 Relay, DPDT, 10A, 120V 250190 Contactor, 2P, 25A, 120V 270114 B-20, 10 to 220F 285379 Triac, 25A 285604 Safety Switch, 3P, 30A 285615 Fuse, Fusetron, 25A 400073 T-Stat.

This manual is also suitable for:

3986

Table of Contents