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February/2019 

 

6.3  Ergonomics 

Ergonomics, the study or accommodation of work practices is extremely important for proper CVE usage and user health 

and safety.  An evaluation of normal work practices should be performed with each user when working in a CVE.  Evaluation 

criteria should be at a minimum: 

 

 

a. Proper user posture 

 

b. Effective workzone layout for work practice 

 

c. Vision or sightlines 

 

For each of the above evaluation criterion, several aids may be supplied to accommodate the user. 

 

Ergonomic chair - A six-way articulating seat and 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 adjustments. 

 

Forearm/elbow support - The cabinet is provided with a forearm support on the work access opening.   

Periodic mini-breaks during work practice should be taken resting forearm to avoid stress and fatigue.   

 

Effective workzone layout - Always prepare your work procedure to minimize reach to avoid neck and shoulder 

stress and fatigue.  Rotating tables are optional to maximum workzone and minimize reach. 

 

Vision and sightline - Always prepare your work procedure to eliminate glare and bright reflections on the window.  Keep 

your window clean and sightlines clear to your effect workzone.

 

 

 

6.4  Cleaning Procedures 

 

6.4.1 General

 

Cleaning laboratory equipment is important in terms of both functionality and general good housekeeping. The 

information provided below is intended to aid the development of facility Standard Operating Procedures (SOP’s) for 

cleaning the equipment. It is strongly recommended that all cleaning materials used be tested and verified both in terms 

of both effectiveness and material compatibility before they are written into the cleaning SOP documentation.  

 

a. The airflow blower should be operating during the cleaning process to maintain sterility and/or containment during the 

cleaning process. 

 

b. Raise window to gain additional access if desired. 

 

c. Apply appropriate cleaning material or surface disinfectant to surfaces. Most surface disinfectants require a specific 

contact time depending the materials used within the work zone. 

CONSULT APPROPRIATE DISINFECTANT 

DOCUMENTATION FOR PROPER APPLICATION AND SAFETY PRECAUTIONS

.  

 

c-1. Polycarbonate (Covestro® Makrolon®AR) has noted material compatibility concerns (see polycarbonate compatibility 

section). They recommend the use of Hydrogen Peroxide based materials such as the following: 

- Steriplex SD 

- Safetec surface wipes 

- Peridox RTU 

 

It is recommended to AVOID the use of cleaning materials that contain Chlorine, Quaternary Ammoniums and Phenol’s.  

 

If the polycarbonate is lightly scratched, it may be able to be polished out with Mirror Glaze Plastic Polish or similar. 

 

Further information may be available from www.covestro.com 

 

c-2. Stainless steel (type 304) has noted material compatibility concerns with Acids, Chlorides and Halogens. 

IF THESE 

MATERIALS ARE USED AND ALLOWED TO BE LEFT ON THE STAINLESS STEEL SURFACE, OXIDATION AND DEGRADATION 

WILL OCCUR

. Only by re-wiping surfaces with either sterile water or 70% IPA will remove harmful materials from the 

stainless steel surface. 

 

Further information is available at the following: http://www.parrinst.com/wp-

content/uploads/downloads/2011/07/Parr_Stainless-Steels-Corrosion-Info.pdf 

 

NOTE:   NuAire does not offer any product warranty with respect to cleaning material compatibility.  

USE AT YOUR OWN RISK!

  The 

information provided above is from raw material suppliers and known general source documents for use to develop 

application cleaning SOP’s.

 

 

 

 

Содержание LabGard NU-813-300

Страница 1: ...odel NU 813 300 400 600 NU 813 300E 400E 600E Portable Bench Top Operation Maintenance Manual February 2019 Series 33 Revision 9 Manufactured By NuAire Inc 2100 Fernbrook Lane Plymouth MN 55447 Toll F...

Страница 2: ...op drawings 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 appen...

Страница 3: ...tion 7 6 Filter Integrity Check 7 7 Main Control Board Description and Replacement Section No 8 Error Messages Troubleshooting and Option Diagnostics Section No 9 Polycarbonate Material Compatibility...

Страница 4: ...gical developments and has been thoroughly tested before delivery It may however present potential hazards if it is not used according to the intended purpose or outside of operating parameters Theref...

Страница 5: ...which if not avoided may result in Minor or moderate injury CAUTION CAUTION used without the safety alert symbol Indicates a potentially hazardous situation which if not avoided may result in propert...

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Страница 7: ...OM0236 Page 7 of 52 February 2019 2 0 Models Features The NU 813 comes in three standard size widths 36 914mm Model 300 300E 48 1219mm Model 400 400E 72 1829mm Model 600 600E...

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Страница 11: ...s 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 driver make...

Страница 12: ...e applied near the cabinets on off switch to indicate the circuit breaker on the power distribution panel to be used 5 2 Electrical Services The NU 813 Series CVE may be hardwired optional or connecte...

Страница 13: ...TESTS BE PERFORMED BY A QUALIFIED TECHNICIAN WHO IS FAMILIAR WITH THE METHODS AND PROCEDURES FOR CERTIFYING LABORATORY CONTAINMENT EQUIPMENT SEE INSERT AFTER THE INITIAL CERTIFICATION NUAIRE RECOMMEN...

Страница 14: ...es Yes Optional Services Gas Cocks 3 8 NPT Up to 3 ea Sidewall Up to 3 ea Sidewall Up to 3 ea Sidewall Cabinet Size Inches mm Height Depth Width 54 1372 29 737 36 914 54 1372 29 737 48 1219 54 1372 29...

Страница 15: ...ntroller that provides automatic compensation for line voltage variances Monitor and display airflow system performance via PresurFlow monitor The LabGard ES NU 813 offers the latest digital microproc...

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Страница 17: ...full blue for outlets on 6 1 2 6 Red Alarm LED The red alarm LED will indicate any alarm condition and remain indicating until the alarm condition is cleared 6 1 2 7 Audible Alarm Silence The audible...

Страница 18: ...of 50 fpm versus the standard 80 fpm If temporary low flow mode is configured see section 8 2 2 the blower must be on green LED above blower key will blink and the window in its normal position To ac...

Страница 19: ...er expires 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 Adju...

Страница 20: ...lower 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 B...

Страница 21: ...and withdrawals from the enclosure may be made 6 2 4 Minimize Room Activity Activity in the room itself should be held to a minimum Unnecessary activity may create disruptive air currents as well as...

Страница 22: ...OR HALOGENS RE WIPE ALL SURFACES WITH 70 ALCOHOL OR SIMILAR NON CORROSIVE ANTI MICROBIAL AGENT TO PREVENT DAMAGE TO STAINLESS STEEL 6 2 8 Materials Equipment The apparatus and materials should next b...

Страница 23: ...ed both in terms of both effectiveness and material compatibility before they are written into the cleaning SOP documentation a The airflow blower should be operating during the cleaning process to ma...

Страница 24: ...e appropriate Personnel Protective Equipment PPE i e face mask gloves Tyvek gown to mitigate exposure a Open hinged window b Remove 2 knurled screws on the top of the rear panel Lower panel and clean...

Страница 25: ...authorized service personnel in accordance with applicable national safety regulations The decontaminate is generated either external or internal of the sealed cabinet The quantity of decontaminate sh...

Страница 26: ...cal power from the CVE before attempting any maintenance action To access the exhaust HEPA filter 1 Remove fasteners on top and sides of control panel and rotate control center down 2 Remove exhaust f...

Страница 27: ...unit is decontaminated before doing any repairs on the interior of the unit Disconnect power or unplug unit before working with any electrical wiring Motor Blower removal should be done by a qualified...

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Страница 29: ...wer red and UV light keys will blink fast Review cabinet model size and change if desired as described below o Press or keys to scroll through the LED segment choices associated with model size Class...

Страница 30: ...l or blower speed adjustment establishes the CVE s total volume of airflow as well as makes up for filter resistance tolerances DC ECM motor PWM signal DC voltage should also be monitored and recorded...

Страница 31: ...nd red LED indicates active blower speed 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...

Страница 32: ...nflow air velocity is measured on a 4 by 4 102mm by 102mm grid in a vertical plane defined by the access opening Readings are taken 3 76mm from the top and bottom of the opening and 4 102mm from the s...

Страница 33: ...ote 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 Press key to abort and exit Upon exiti...

Страница 34: ...cate minimum left maximum right blower speed has been achieved Note At any time during the process Press hidden key to accept Low Flow blower speed calibration point Press key to abort and exit 7 5 3...

Страница 35: ...in the rear center of the workzone and the exhaust probed above the ring When probing a leakage shall not exceed 0 005 of the upstream concentration Internal reference concentration with one Laskin No...

Страница 36: ...X 20MM NU 813 300 E 3 AMPS 3 AMPS 2 AMPS 1 AMP 2 NU 813 400 E 3 AMPS 3 AMPS 2 AMPS 1 AMP 2 NU 813 600 E 5 AMPS 3 AMPS 2 AMPS 1 AMP 2 7 7 3 Main Control Board Replacement Note All setup and calibration...

Страница 37: ...particle counter using the applicable methods and techniques For the primary HEPA the P A O challenge is introduced into the cabinet workzone and the sample probe is taken from the port labeled S on...

Страница 38: ...rating properly Verify standard working height and window micro switch operation Cabinet fluorescent lights won t Turn on Blue LED above light key indicates the lamp should be on Check light fuse on m...

Страница 39: ...lower 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...

Страница 40: ...e the user to press the blower key to restart the blower Low Flow Normally the function is turned off If selected and turned on once the blower is actively running Upon closure the blower will continu...

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Страница 42: ...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 10 2 Alarm Relay The alarm relay contacts are normally op...

Страница 43: ...500 V for a 120 V supply 11 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...

Страница 44: ...ainted Steel Worksurface Epoxy Resin Window Polycarbonate Control Center Painted Steel Top Interior Panel Painted Steel Bottom Exterior Panel Painted Steel Exhaust Filter Aluminum HEPA Filter Frames S...

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