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OM0291 

Page 53 of 56 

Rev 3 November2020 

10.0  Electrical/Environmental Requirements 

 

10.1  Electrical (Supply Voltage Fluctuations Not to /- 10%) 

 

*NU-640-400   

115 VAC,  

60 Hz,    

1 Phase,  

14 Amps  

*NU-640-500     

115 VAC,  

60 Hz,    

1 Phase,       

16 Amps 

*NU-640-600   

115 VAC,  

60 Hz,    

1 Phase,        

16 Amps 

   

 *UL/UL-C Listed 

 

 

10.2  Operational Performance (for indoor use only) 

  Environment Temperature Range:  60

°

F-85

°

F (15

°

C - 30

°

C) 

  Environment Humidity: 

Maximum relative humidity 80% for temperatures up to 31

°

C decreasing linearly to 

50% relative humidity at 40

°

C. 

 

Environment Altitude: 

6562 Feet (2000M) 

 

10.3  Light Exposure 

 

Standard LED Lighting @ 150 ft. candles (1614 LUX) maximum intensity. 

 

10.4  Installation Category:  2.0 

 

Installation category (overvoltage category) defines the level of transient overvoltage which the instrument is designed to 

withstand safely.  It depends on the nature of the electricity supply and its overvoltage protection means.  For example, 

in CAT II, which is the category used for instruments in installations supplied from a supply comparable to public mains 

such as hospital and research laboratories and most industrial laboratories, the expected transient overvoltage is 2500 V 

for a 230 V supply and 1500 V for a 120 V supply. 

 

10.5  Pollution Degree:  2.0 

 

Pollution degree describes the amount of conductive pollution present in the operating environment.  Pollution degree 2 

assumes that normally only non-conductive pollution such as dust occurs with the exception of occasional conductivity 

caused by condensation. 

 

10.6  Chemical Exposure 

 

Chemical exposure should be limited to antibacterial materials used for cleaning and disinfecting.  

USE OF CHLORINATED 

OR HALOGEN MATERIALS IN THE CABINET MAY DAMAGE STAINLESS STEEL.

   Equipment  decontamination can be 

accomplished by non-condensing gas or vapor paraformaldehyde, Hydrogen Peroxide or  Chlorine Dioxide following 

NSF/ANSI Annex G.  

 

10.7  EMC Performance (classified for light industrial) 

 

Emissions: 

 

EN61326 

 

Immunity: 

 

EN61326 

 

Class A equipment is intended for use in an industrial environment.   

In the documentation for the user, a statement shall be included drawing  

attention to the fact that there may be potential difficulties in ensuring 

electromagnetic compatibility in other environments, due to conducted  

as well as radiated disturbances. 

WARNING 

Summary of Contents for LabGard NU-640-400

Page 1: ...Biosafety Cabinet Models NU 640 400 500 600 Bench Console Operation and Maintenance Manual November 2020 Revision 3 NU 640 400 500 600 Series A Manufactured By NuAire Inc 2100 Fernbrook Lane Plymouth...

Page 2: ...ction from particulate contaminants as prescribed in NSF ANSI 49 Please read this manual carefully to familiarize yourself with proper installation maintenance and operation of the cabinet Other refer...

Page 3: ...awings are appended in the back flap of this manual along with any modifications and or additions to procedures as outlined in this manual A copy of the original factory test report is also appended t...

Page 4: ...PA Filter Motor Replacement 7 4 Sliding Window Replacement and Manual Adjustment 7 5 Airflow Control System Setup and Calibration 7 6 HEPA Filter Leak test 7 7 Airflow Smoke Pattern Test 7 8 Site Inst...

Page 5: ...e see Airflow Schematic and the application of environmental controls as required in the field of biological research or chemical containment The AHBSC when used with proper technique is an effective...

Page 6: ...pply while specific agents are used o which measures are to be taken in the case of an accident Repairs to the device must be carried out only by trained and authorized expert personnel Keep these ope...

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Page 8: ...291 Page 8 of 56 Rev 3 November2020 2 0 Models and Features The model NU 640 LabGard ES Class II Type A2 Animal Handling Biosafety Cabinet is manufactured in three sizes 4 ft 1 2m 5 ft 1 5m and 6 ft 1...

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Page 12: ...d Shipments 4 1 1 Terms are factory unless stated otherwise Therefore it is important to check each shipment before acceptance 4 1 2 If there is visible damage the material can be accepted after the d...

Page 13: ...cted should be readily accessible for maintenance purposes Do not position the cabinet to prevent access to the power cord The power cord plug serves as the disconnect and should remain readily access...

Page 14: ...tionary warning labels that say the following Use of explosive or flammable substances in this cabinet should be evaluated by your appropriate safety personnel Once the determination has been made by...

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Page 16: ...net size reference Electrical Environmental Requirements It is recommended that power to the cabinet whether hardwired or plug connected be on its own branch circuit protected with a circuit breaker a...

Page 17: ...ment tests The testing methods and equipment required are specified on the factory inspection report included with this manual see insert in back cover NOTE IT IS RECOMMENDED THAT THESE TESTS BE PERFO...

Page 18: ...987 86 1 4 2190 56 3 8 1433 33 838 78 1 4 1987 86 1 4 2190 68 3 8 1737 33 838 78 1 4 1987 86 1 4 2190 80 3 8 2042 33 838 Work Access Opening Inches mm Standard Opening Height Standard Inflow Velocity...

Page 19: ...or with solid state DC Motor Controller that provides automatic compensation constant volume control for both filter loading and line voltage variances Monitor and display airflow system performance v...

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Page 21: ...key controls the on off power to the LED light LED above the key indicates full blue for LED light on 6 1 2 4 Ultraviolet UV Light Key Not Available 6 1 2 5 Outlet Keys The outlet key controls the ON...

Page 22: ...dicate cabinet airflow status During the warm up period the aseptic cleaning process may begin If the sliding window is raised an audible and visual alarm will occur but may be silenced by pressing th...

Page 23: ...ires the function will turn off Select auto timer duration function o Outlets Press and hold key then press hidden outlet outlet keys sequentially LED indicator above outlet will blink fast Adjust des...

Page 24: ...n blower hidden keys sequentially Red LED indicator above blower will blink fast Select password Press or key to scroll through the code choices below No Password B B H password B H B password default...

Page 25: ...ng should be evaluated by appropriate safety personnel 6 2 2 Minimize Penetration of Air Curtain The minimum number of items necessary should be placed into the cabinet to prevent overloading but the...

Page 26: ...precaution is merely an extension of good aseptic technique as practiced on open bench tops The standard laboratory practices designed to minimize creation and or release of aerosols to the environme...

Page 27: ...of viable materials should be performed as deeply into the cabinet away from open face as possible 6 3 4 Air Purge Additional purging of the workspace without user activity should be allowed for 2 3...

Page 28: ...back control for personalized adjustment to assure proper user posture Be sure feet are resting on the floor chair foot support or foot rest Also be sure back is fully supported with proper chair adju...

Page 29: ...r the purpose of this procedure detailed procedures for cleaning a Class II AHBSC can be found in the 2006 ASHP Technical Assistance Bulletin ASHP Guidelines on Handling Hazardous Drugs2 6 6 2 Procedu...

Page 30: ...ally decontaminated is known to be biologically clean or known to be chemically inert Surface disinfection is performed as specified in the Cleaning Procedures section Hazardous Gases Personal Protect...

Page 31: ...n then be activated 8 Seal front and top openings using plastic and tape BE SURE CABINET IS TOTALLY SEALED TO PREVENT ANY LABORATORY EXPOSURE TO DECONTAMINATION GAS 9 Perform decontamination procedure...

Page 32: ...ow fully exposed for replacement of the filters and motor blower The lowest window position will require the armrest to be removed If the cabinet has the power window option access the Power Window Te...

Page 33: ...tal Metal NU 640 400 NuAire Part Number A 980979 01 980 00032 01 Filter Size 21 533mm x 44 1118mm x 3 76mm 24 610mm x 30 762mm x 6 152mm Filter Manufacturer Camfil Farr Camfil Farr NU 640 500 NuAire P...

Page 34: ...e top of the hood Tighten the spring loaded bolts 4 places depressing the gasket material by 1 8 inch 3mm Step 5 Motor Blower Assembly Removal a It is recommended that the motor blower to be removed a...

Page 35: ...Calibration 7 5 1 General The operation of the NU 640 cabinet requires that the setup and calibration procedures be performed in order to certify or commission the cabinet for usage The setup and cali...

Page 36: ...light keys will blink fast Review motor control function type and change it desired as described below o Press or keys to scroll through the LED segment choices associated with motor control function...

Page 37: ...e adjusts or balances the exhaust airflow as well as makes up for filter resistance tolerances Since it has been NuAire s experience that the filters may not load evenly choke adjustments may be neces...

Page 38: ...eed adjust The red LED will blink as soon as any adjustments are made and will continue to blink as the motor rpm settles Once the red LED stops blinking the motor will run steady state at the new per...

Page 39: ...stment requires a standard blade screwdriver To adjust loosen the liquid tight fitting around the choke adjustment shaft While monitoring the exhaust flow to check position turning the choke adjustmen...

Page 40: ...ust be non blinking to save or exit Note At any time during the process Press hidden key to accept low alarm setpoint value Press and hold outlet key for three seconds to remove any previous offsets P...

Page 41: ...not go through normal start up procedure 7 5 3 5 Nite Care Calibration See Section 8 2 2 to Activate the Nite Care Function The Nite Care mode is defaulted to operate the blower at approximately 600...

Page 42: ...ocity ft min m s d Acceptance Criteria 1 Average downflow velocity 55 to 65 fpm 28 to 33 m s 2 Individual readings must be within 20 or 16fpm 0 08m s whichever is greater factory test or 25 or 16fpm 0...

Page 43: ...2 209 315 422 529 636 743 850 957 1064 1171 1278 1384 600 4 8 16 12 32 16 48 20 64 24 80 28 96 33 12 37 28 41 44 45 60 49 76 53 92 58 08 62 28 66 50 102 207 313 419 524 630 736 841 950 1053 1158 1264...

Page 44: ...typically more difficult to check since protective grills charcoal filters or exhaust transitions could cover the filter Access panels are usually provided and should be removed If an air gap exhaust...

Page 45: ...4 No smoke shall escape from the cabinet 7 8 Site Installation Assessment Tests These tests are performed to verify the sash position airflow or pressure setpoint where an audible and or visual alarm...

Page 46: ...t test using non hazardous materials A minimum of three 3 1 minute particle counts shall be sampled and recorded while the user simulates aseptic compounding manipulations At Rest Particle Count Test...

Page 47: ...20MM NU 640 400 12 AMPS 3 AMPS 2 AMPS 1 AMP 2 2 AMPS NU 640 500 15 AMPS 3 AMPS 2 AMPS 1 AMP 2 2 AMPS NU 640 600 15 AMPS 3 AMPS 2 AMPS 1 AMP 2 2 AMPS 7 10 3 Main Control Board Replacement Note All set...

Page 48: ...the initial power up the RED alarm LED will blink to indicate power up status 5 Press key to clear the power on reset message 6 Enter into service parameters and input configuration for calibration an...

Page 49: ...fuse located on main control board Check voltage coming out of main control board Blower or light fuse continues to blow after replacement N A Check for short on output of fuse Isolate output of fuse...

Page 50: ...must be actively running for the accessary outlet to turn on Sync Outlet Power with Active Blower Normally the outlet power is turned on via the outlet key If the outlet power sync is active the outle...

Page 51: ...tively running Upon closure the blower will continue to run at a calibrated lower speed level to keep the workzone interior sterile The PresurFlow will indicate s blinking green LEDs along with green...

Page 52: ...are activated whenever the blower key is pressed and the blower key LED indicator is on or blinking Contact ratings are 250 VAC maximum at 2 Amps 9 2 Alarm Relay The alarm relay contacts are normally...

Page 53: ...h as hospital and research laboratories and most industrial laboratories the expected transient overvoltage is 2500 V for a 230 V supply and 1500 V for a 120 V supply 10 5 Pollution Degree 2 0 Polluti...

Page 54: ...ont Grill Stainless Steel Worksurface Stainless Steel Window Faring Stainless Steel Window Glides HDPE Window Safety Glass Window Frame Stainless Steel Front Service Panel Painted Steel Front Decorati...

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