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P. O. Drawer E / 161 Gatehouse Road / Sanford, Maine 04073 / USA
800-992-2537 / 207-324-8773 / Fax: 207-324-3869 / bakerco@bakerco.com /
bakerco.com
SERVICE MANUAL
Class II, Type A2
Biological Safety Cabinet
MODELS:
SG404 / SG504 / SG604
SG404-INT / SG504-INT / SG604-INT
SG404-JPN / SG504-JPN / SG604-JPN
SG404-AUS / SG604-AUS
M-models are UL listed but not NSF listed
This manual includes information for proper service of this cabinet.
We recommend that it be kept near the cabinet for ready reference.
389D001 Rev G
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Table of Contents
Related Manuals for Baker SterilGARD SG404
Summary of Contents for Baker SterilGARD SG404
- Page 1 P. O. Drawer E / 161 Gatehouse Road / Sanford, Maine 04073 / USA 800-992-2537 / 207-324-8773 / Fax: 207-324-3869 / bakerco@bakerco.com / bakerco.com SERVICE MANUAL Class II, Type A2 Biological Safety Cabinet MODELS: SG404 / SG504 / SG604 SG404-INT / SG504-INT / SG604-INT SG404-JPN / SG504-JPN / SG604-JPN SG404-AUS / SG604-AUS M-models are UL listed but not NSF listed...
- Page 2 TABLE OF CONTENTS I - SPECIFICATIONS .............................3 Exterior Dimensions ..........................3 Unit Weights .............................3 Plumbing Service ............................3 Electrical Service ............................4 Exhaust Flow Specifications ........................5 Exhaust Duct Specifications ........................5 Environmental Conditions ........................6 Symbols and Terminology ........................6 ...
- Page 3 I - SPECIFICATIONS Exterior Dimensions SG404 SG504 SG604 x 30 ” x 30 ” x 30 ” Foot Print (w x f-b) [1,365 x 779 mm] [1,670 x 779 mm] [1,975 x 779 mm] ” Height (Without Stand) [1,568 mm] ”...
- Page 4 Electrical Service A single dedicated circuit is required to power this cabinet. This circuit shall provide the protective earth ground for the cabinet. All electrical wiring to the cabinet should comply with the national electrical code and any applicable local electrical codes at the site of installation.
- Page 5 Exhaust Flow Specifications Vent to Room SG404 SG504 SG604 285 CFM 355 CFM 455 CFM 8” [203 mm] Access Opening Height [135 L/Sec] [168 L/Sec] [215 L/Sec] 355 CFM 445 CFM 545 CFM 10” [254 mm] Access Opening Height [168 L/Sec] [215 L/Sec] [257 L/Sec] 404 CFM...
- Page 6 Environmental Conditions The cabinet is designed for use in the following conditions: Indoor use Altitudes up to 6562 Ft (2000 meters) Temperature range from 41 F (5C) to 104 F (40C) Maximum relative humidity 80% for temperatures up to 88° F (31°C) decreasing linearly to 50% at 104 F (40C) ...
- Page 7 A claim for restitution needs to be filed within 15 days. Due to the risk of mishandling by trucking companies, Baker has removed certain parts of the cabinet and has packed them separately. These items are listed on the packing slip, which accompanies the cabinet. Please check the packing slip carefully to be sure that all items have been located.
- Page 8 The FlexAIR Canopy Exhaust Connection has a 12” [305 mm] diameter connection with a 10” [254mm] diameter spun inner baffle. It mounts directly over the exhaust filter and has flaps to reduce the amount of room air being exhausted. A sensor that detects when the flap opens during low duct exhaust conditions triggers a low flow exhaust alarm in the cabinet.
- Page 9 Channel Stand Installation Procedure Document: 389D002 Rev A Release Date: 03/24/14 This procedure describes the proper assembly of the SGX04 basic channel stand and the correct installation underneath the cabinet. It provides step by step instructions for the channel stand installation in two instances: 1.
- Page 10 1. Channel Stand Assembly Procedure: Step 1: Remove stand components from rear of cabinet skid if shipped as shown. Remove items 4-11 from the separate box shipped with the cabinet. If cabinet is factory shipped on channel stand please see channels stand leg assembly procedure Step 2: Gather all stand components, hardware, and tools.
- Page 11 Adjustable leg with leveler Step 5: With stand assembly complete, rotate stand upside down. Attach the legs by inserting them into the channels from ” Hardware the front. Both sides [Items 5, 7, & 8] The telescoping legs can now be adjusted to the desired height requirement.
- Page 12 Step 7: Lift the cabinet off the skid and high enough to allow clearance for the stand Cabinet assembly to be positioned under it. Once the stand is positioned under the cabinet, install (4) ¼”x 2" carriage bolts into the key way slots located under the cabinet in each of the (4) corners.
- Page 13 2. Channel Stand Leg Assembly Procedure: Step 1: If cabinet is factory shipped on channel stand remove components 4 -11 that are separately shipped with cabinet. Step 2: Lift cabinet off the skid and high enough to allow clearance for the adjustable legs to be assembled to the front and rear of the ”...
- Page 14 Step 4: Carefully lift up one end of the cabinet by at least 6” [150 mm] and block into position using a safe and secure method. Insert adjustable leg into channel on front and rear side of cabinet and secure it as described in Step 2.
- Page 15 Step 1: If equipped with FlexAIR Canopy Exhaust Connection, be sure to have the exhaust air turned on and at the specified exhaust flow range before beginning the cabinet airflow validation procedure. (See Baker Document BAKD066 for exhaust airflow requirements)
- Page 16 Step 2: With the cabinet sash at the correct operating height indicated by the red/white arrows, measure the downflow velocities with a thermal anemometer and fixed ring stand. Refer to the data plate label on front of cabinet for downflow locations and velocities. Below is a sample of the data plate label. DOWN FLOW VELOCITY SG404: CLASS II TYPE A2 43122...
- Page 17 Option 2: Secondary Method using Thermal Anemometer (Constricted Method) Remove the armrest and lower the cabinet sash to an access opening height of 3 inches (76 mm). Using a thermal anemometer with or without Bakers’ secondary method fixture (#333A714), orient the probe tip facing upward at the center of the vertical access opening (1.5”...
- Page 18 SPEED CONTROLLER ADJUSTMENTS: If a speed controller adjustment is necessary; Step 1: Remove thumbscrews or shipping bolts from front fascia panel and raise, engaging the left and right panel supports. Step 1: Using a ¼” nut driver or ratchet wrench, remove the aluminum cover from the electrical mounting board located on the left hand side.
- Page 19 Step 2: Slowly trim the pot to achieve the necessary airflow; Clockwise to increase speed and counter clockwise to decrease speed. After fan speed adjustment, wait a total of one minute before switching the motor controller back to ‘automatic mode’. The green LED on motor controller will be ‘solid green’...
- Page 20 HEPA Filter Leak Test Procedure CAUTION! POTENTIALLY CONTAMINATED AREA! BEFORE PROCEEDING, A RISK ASSESSEMENT SHALL BE PERFORMED TO IDENTIFY POTENTIAL HAZARDS WITHIN THE BIOSAFETY CABINET. IF REQUIRED A SURFACE DECONTAMINATION OR SPACE DECONTAMINATION MAY BE NECESSARY BEFORE PERFORMING THIS PROCEDURE. PROPER PPE SHALL BE USED AS INSTRUCTED BY LAB SAFETY OFFICER NOTE 1: The Primary Method for the scanning the HEPA Filters in the SterilGARD is using an aerosol...
- Page 21 Step 3: For a vent to room cabinet configuration, remove the exhaust filter protector by removing the two cap nut hardware assemblies using a 5/16” nut driver or ratchet. If equipped with a FlexAIR canopy exhaust connection, access to the HEPA filter for leak scanning can be performed by lifting the front bypass flap open and taping it to the exhaust ductwork.
- Page 22 Step 5: Locate the ‘Aerosol Challenge and Introduction Location’ label behind the front Fascia panel for information on the Primary and Secondary methods for HEPA leak testing. AEROSOL CHALLENGE AND INTRODUCTION LOCATION Primary Method: Calculating the Filters Upstream Challenge Aerosol generator hose with tee ...
- Page 23 CAUTION! POTENTIALLY CONTAMINATED AREA! BEFORE PROCEEDING, A RISK ASSESSEMENT SHALL BE PERFORMED TO IDENTIFY POTENTIAL HAZARDS WITHIN THE BIOSAFETY CABINET. IF REQUIRED A SURFACE DECONTAMINATION OR SPACE DECONTAMINATION MAY BE NECESSARY BEFORE PERFORMING THIS PROCEDURE. PROPER PPE SHALL BE USED AS INSTRUCTED BY LAB SAFETY OFFICER.
- Page 24 Step 9: Scan the supply and exhaust HEPA filter media including the perimeter gasket using the photometer nozzle at a distance no greater than one inch (25.4 mm) away and at a rate of no more than two inches per second (51 mm/sec).
- Page 25 Airflow Smoke Pattern Test WARNING! THIS TEST REQUIRES THE USE OF A SMOKE TUBE OR SIMILAR DEVICE WHICH MAY SET OFF LABORATORY SMOKE DETECTORS IF USED CARELESSLY. SPECIAL PRECAUTIONS SHOULD BE TAKEN TO AVOID AN ACCIDENTAL FIRE ALARM CONDITION. Down flow test: Smoke shall be passed from one end of the cabinet to the other, along the centerline of the worksurface, at a height of 4 inches (100mm) above the...
- Page 26 Raise the sash 1” (25.4 mm) above the operating height indicated by the red and white arrows. Confirm the activation of audible and visual alarms. Cabinet Airflow Alarm (Optional) If the SterilGARD biosafety cabinet is equipped with an optional airflow alarm, refer to the Baker Test Report for verification information. FlexAIR Airflow Alarm If the cabinet is equipped with a FlexAIR canopy exhaust connection, verify audible and visual alarms.
- Page 27 IV - MAINTENANCE HEPA Filter Replacement Procedure WARNING This procedure must be performed by a qualified and trained biosafety cabinet professional. A risk assessment shall be conducted to identify biological hazards within the cabinet and if required a space decontamination must be performed. Additional Personal Protective Equipment (PPE) such as gloves and gowning may be required.
- Page 28 Step 3: Raise the front fascia panel and engage the left and right panel supports Step 4: Detach the blue electrical connector on the far left side of the cabinet. Step 5: Cut all plastic tie wraps on the right side of the cabinet that secure the front fascia panel wiring.
- Page 29 Step 6: Loosen the (4) 5/16” hex nuts, (2 on each side) of the electrical board. Do not completely remove these. Step 7: Create some slack in the black supply power cable by pulling down. (A ladder may be required to disconnect cable ties on top of the cabinet).
- Page 30 Step 9: Remove the sash alarm sensor mounting bracket using a ¼” nut driver or ratchet wrench. Set aside for re-assembly later. Accessing the Cabinets Internal Plenums CAUTION – Potentially contaminated plenum area As indicted at the beginning of this procedure, a risk assessment shall be performed to determine whether or not a space bio-decontamination is necessary.
- Page 31 Step 11: Once all 3/8” bolts and seal washers have been removed from front seal panel, carefully remove panel by leaning the top away from the cabinet face taking care to clear all electrical wires. Prying the seal panel away from the cabinet may be required to break the gasket seal- Use caution as not to damage the gasket.
- Page 32 Changing the Cabinet Exhaust HEPA Filter Step 12: Using a 3/4" ratchet wrench or similar tool, loosen the left and right exhaust filter clamps to provide a 1" (25.4mm) minimum gap below or above the exhaust filter. The filter may need to be pried off to break the gasket seal using a screwdriver or putty knife.
- Page 33 Changing the Cabinet Supply HEPA Filter Step 14: Using a 3/4" ratchet or socket wrench, loosen the supply HEPA filter clamps to raise the steel plenum. Provide a 1" (25.4mm) minimum gap below or above the supply filter. The supply filter may need to be pried off to break gasket seal using a screwdriver or putty knife. Step 15: Remove the supply filter from the cabinet by pulling it outward.
- Page 34 View screen Removal Procedure CAUTION Potentially contaminated area As indicted at the beginning of this procedure, a risk assessment shall be performed to determine whether or not space decontamination is necessary. Step 1: Raise front dress panel and extend left and right side dress panel supports. Step 2: Loosen the four 5/16”...
- Page 35 Step 4: Unplug the grey fluorescent light connector located on the left side of the fascia panel and remove (2) 11/32” nuts from the cable holders. Step 5: Cut all plastic tie wraps on the left side of the cabinet that secure the fluorescent light wiring.
- Page 36 Step 8: Remove thumbscrews or 3/8” bolts from both left and right side viewscreen guides. Step 9: Remove the two bolt assemblies used to secure the viewscreen cables using a ¼” spin wrench. Viewscreen will now be free from cabinet. (Note which bolt hole was used on each side of the viewscreen so that when replacement is installed viewscreen will hang level.
- Page 37 Fluorescent Lamp Replacement Step 1: Turn off the fluorescent lamp by depressing the light on/off switch located on the touchpad . Step 2: Unscrew panel fastener on each side. Raise front dress panel and extend left and right side dress panel supports. Step 3: Using both hands, grasp the lamp carefully near each end.
- Page 38 Ultraviolet Lamp Replacement UV germicidal lamps lose their effectiveness over time and should be replaced when the intensity at the work surface drops below 40 microwatts per square centimeter at a wavelength of 253.5 x 10 meters. IMPORTANT Before replacing a UV germicidal lamp it might be necessary to check with an industrial hygienist, safety officer or other qualified person in the lab to make sure that there is nothing stored in the cabinet that could potentially be a hazard to you or could be contaminated by room air.
- Page 39 Touchpad Replacement Step 1: Unscrew and raise the front dress panel as previously described Step 2: Carefully remove the touchpad ribbon cable from the Membrane Switch Controller (MSC) board located on the inside of the dress panel Step 3: Close the front dress panel again and pry at one side of the membrane touchpad using your fingers until it releases from the painted surface.
- Page 40 This configuration also causes a fault (Normally Open) condition when the device is not powered. WARNING The values described in this document are pre-set at The Baker Company. These values should only be changed upon cabinet re-balancing / certifying in the field.
- Page 41 Press & Hold the Up arrow pushbutton until the “Setup” menu is displayed ~ 3 seconds Set Point One Configuration: - Press the Down arrow pushbutton to highlight [Set 1] - Press the Right arrow pushbutton to access the Set 1 setting list - Use the UP and Down arrow pushbuttons to highlight “db”...
- Page 42 Set Point Two Value and Deadband settings: - Press the Down arrow pushbutton to highlight “SP2” - Press the Right arrow pushbutton to access SP2 value setting - Use the Right and Left pushbuttons to select the digit and Up and Down pushbuttons increase/decrease the value.
- Page 43 Replacement Parts List Electrical Items SG404 SG504 SG604 Fluorescent lamp 41386 41386 41383 Ultraviolet lamp 18024 18024 18025 Fluorescent lamp holders – plunger end / fixed end 41438 / 41439 41438 / 41439 41438 / 41439 Ultraviolet lamp holders – plunger end / fixed end 20281 / 20283 20281 / 20283 20281 / 20283...
- Page 44 Mechanical Items SG404 SG504 SG604 Down flow HEPA filter 40141 (20x48x3.06) 40525 (20x60x3) 40142 (20x72x3.06) Exhaust HEPA filter 41703(16x30x5.87) 43959 (16x42x5.87) 41704 (16x42x5.87) Exhaust HEPA filter 12” sash opening 41863(16x30x5.87) 41704 (16x42x5.87) 41883 (16x42x5.87) 365A208 365A208 365A211 Motor/Blower Assy. (Baldor or Leeson) (Baldor or Leeson) (Leeson only) Armrest pad...
- Page 45 SGX04 DWG NO. THIS DRAWING AND ITS CONTENTS ARE THE Caution(Refer to 389E500 PROPERTY OF THE BAKER COMPANY. THE Protective conductor terminal Accompanying documents) INFORMATION CONTAINED HERE ON MAY NOT BE SHEET USED OR COPIED IN ANY MANNER WITHOUT THE 1 OF 2 WRITTEN PERMISSION OF THE BAKER COMPANY.
- Page 46 Reference Alarm Conditions section in operation manual and troubleshooting guide for more information: dwg (503E500) If you are in need of a manual for your cabinet they are available online at: http://www.bakerco.com/resources/manuals.php Call Customer Service at The Baker Company 1-(800)-992-2537 J2 J3 DRAWN W.Day...
- Page 47 8/20/13 DWG NO. THIS DRAWING AND ITS CONTENTS ARE THE Caution(Refer to 389E501 PROPERTY OF THE BAKER COMPANY. THE Protective conductor terminal Accompanying documents) INFORMATION CONTAINED HERE ON MAY NOT BE SHEET USED OR COPIED IN ANY MANNER WITHOUT THE 1 OF 3 WRITTEN PERMISSION OF THE BAKER COMPANY.
- Page 48 8/20/13 DWG NO. THIS DRAWING AND ITS CONTENTS ARE THE Caution(Refer to 389E501 PROPERTY OF THE BAKER COMPANY. THE Protective conductor terminal Accompanying documents) INFORMATION CONTAINED HERE ON MAY NOT BE SHEET USED OR COPIED IN ANY MANNER WITHOUT THE 2 OF 3 WRITTEN PERMISSION OF THE BAKER COMPANY.
- Page 49 Reference Alarm Conditions section in operation manual and troubleshooting guide for more information: dwg (503E500) If you are in need of a manual for your cabinet they are available online at: http://www.bakerco.com/resources/manuals.php Call Customer Service at The Baker Company 1-(800)-992-2537 J2 J3 DRAWN...
- Page 50 DENOTES CANOPY TERMINAL BLOCK, TERMINALS 3 OR 4 DWG NO. THIS DRAWING AND ITS CONTENTS ARE THE Caution(Refer to 389E502 PROPERTY OF THE BAKER COMPANY. THE Protective conductor terminal Accompanying documents) INFORMATION CONTAINED HERE ON MAY NOT BE SHEET USED OR COPIED IN ANY MANNER WITHOUT THE 1 OF 2 WRITTEN PERMISSION OF THE BAKER COMPANY.
- Page 51 Reference Alarm Conditions section in operation manual and troubleshooting guide for more information: dwg (503E500) If you are in need of a manual for your cabinet they are available online at: http://www.bakerco.com/resources/manuals.php Call Customer Service at The Baker Company 1-(800)-992-2537 J2 J3 DRAWN W.Day...
- Page 52 DENOTES CANOPY TERMINAL BLOCK, TERMINALS 3 OR 4 DWG NO. THIS DRAWING AND ITS CONTENTS ARE THE Caution(Refer to 389E509 PROPERTY OF THE BAKER COMPANY. THE Protective conductor terminal Accompanying documents) INFORMATION CONTAINED HERE ON MAY NOT BE SHEET USED OR COPIED IN ANY MANNER WITHOUT THE 1 OF 2 WRITTEN PERMISSION OF THE BAKER COMPANY.
- Page 53 Reference Alarm Conditions section in operation manual and troubleshooting guide for more information: dwg (503E500) If you are in need of a manual for your cabinet they are available online at: http://www.bakerco.com/resources/manuals.php Call Customer Service at The Baker Company 1-(800)-992-2537 J2 J3 DRAWN W.Day...
- Page 54 SGX04, 115V. W/Cabinet Setpoint Monitor DWG NO. THIS DRAWING AND ITS CONTENTS ARE THE Caution(Refer to 389E513 PROPERTY OF THE BAKER COMPANY. THE Protective conductor terminal Accompanying documents) INFORMATION CONTAINED HERE ON MAY NOT BE SHEET USED OR COPIED IN ANY MANNER WITHOUT THE 1 OF 3 WRITTEN PERMISSION OF THE BAKER COMPANY.
- Page 55 SGX04, 115V. W/Cabinet Setpoint Monitor DWG NO. THIS DRAWING AND ITS CONTENTS ARE THE Caution(Refer to 389E513 PROPERTY OF THE BAKER COMPANY. THE Protective conductor terminal Accompanying documents) INFORMATION CONTAINED HERE ON MAY NOT BE SHEET USED OR COPIED IN ANY MANNER WITHOUT THE 2 OF 3 WRITTEN PERMISSION OF THE BAKER COMPANY.
- Page 56 Reference Alarm Conditions section in operation manual and troubleshooting guide for more information: dwg (503E500) If you are in need of a manual for your cabinet they are available online at: http://www.bakerco.com/resources/manuals.php Call Customer Service at The Baker Company 1-(800)-992-2537 J2 J3 DRAWN W.Day...
- Page 57 SGX04-INT, W/Cabinet Setpoint Monitor DWG NO. THIS DRAWING AND ITS CONTENTS ARE THE Caution(Refer to 389E514 PROPERTY OF THE BAKER COMPANY. THE Protective conductor terminal Accompanying documents) INFORMATION CONTAINED HERE ON MAY NOT BE SHEET USED OR COPIED IN ANY MANNER WITHOUT THE 1 OF 3 WRITTEN PERMISSION OF THE BAKER COMPANY.
- Page 58 SGX04-INT, W/Cabinet Setpoint Monitor DWG NO. THIS DRAWING AND ITS CONTENTS ARE THE Caution(Refer to 389E514 PROPERTY OF THE BAKER COMPANY. THE Protective conductor terminal Accompanying documents) INFORMATION CONTAINED HERE ON MAY NOT BE SHEET USED OR COPIED IN ANY MANNER WITHOUT THE 2 OF 3 WRITTEN PERMISSION OF THE BAKER COMPANY.
- Page 59 Reference Alarm Conditions section in operation manual and troubleshooting guide for more information: dwg (503E500) If you are in need of a manual for your cabinet they are available online at: http://www.bakerco.com/resources/manuals.php Call Customer Service at The Baker Company 1-(800)-992-2537 J2 J3 DRAWN W.Day...
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- Page 61 Electrical Panel Assemblies J14B J14A 389D001 Rev G 61 of 94...
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- Page 74 Auxiliary Blower Switch Status Wiring Option 389D001 Rev G 74 of 94...
- Page 75 Auxiliary Cabinet Monitoring Wiring Option 389D001 Rev G 75 of 94...
- Page 76 FlexAIR Canopy Exhaust Connection Wiring 389D001 Rev G 76 of 94...
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- Page 94 Date Description 08/27/14 Corrections made to parts lists Added touchpad replacement and pressure monitor operation 01/21/15 to section IV; corrections made to parts lists Change “Cabinet Control Monitor” to “Building 10/7/2019 Management System” per CR#2443 389D001 Rev G 94 of 94...