[Blog] Transitioning from Biosafety Cabinet models NU-425 and NU-475 to model NU-540

April 24, 2018 John Peters

NuAire launched Biosafety Cabinet (BSC) model NU-540 in February of 2015. Model NU-540 is a Class II, Type A2 BSC that replaces models NU-425 and NU-475. Model NU-540 combines the very best features of the NU-425 and NU-475 with exciting new additions. The 425 has been NuAire’s flagship product for over 40 years. LabGard model NU-540 enhances knowledge learned throughout model NU-425 product development to construct a new industry standard in the NU-540. Learn about the model differences below as you transition to model NU-540.

 

 

Biosafety Cabinet Model Comparison

Feature

LabGard NU-425

NuAire NU-425 Biosafety Cabinet

 CellGard NU-475

NuAire NU-475 Biosafety Cabinet

LabGard NU-540

NuAire NU-540 Biosafety Cabinet

Status

Discontinued

Discontinued

Active

Nominal Widths Available

3, 4, 5, 6-foot (0.9, 1.2, 1.5, 1.8-meter)

3, 4, 5, 6-foot (0.9, 1.2, 1.5, 1.8-meter)

3, 4, 5, 6-foot (0.9, 1.2, 1.5, 1.8-meter)

Quality Assurance

NSF/ANSI 49

NSF/ANSI 49

NSF/ANSI 49

Style of Cabinet

Benchtop/console w/base stand/storage cabinet

Benchtop/console w/base stand/storage cabinet

Bench top/console w/base stand/storage cabinet

Cabinet Construction

All welded stainless steel 16/18 gauge, Type 304 pressure tight design

Welded stainless steel 16/18 gauge, back wall gasksted plate, Type 304 pressure tight design

All welded stainless steel 16/18 gauge, Type 304 pressure tight design

Motor

Single Ultra High-Efficiency

Single Ultra High-Efficiency

Single Ultra  High-Efficiency

Window Sash Type

Straight Vertical

10 Degree Slope

10 Degree Slope

Window Sash Opening

8 or 10-inches (203 or 254 mm)

8 or 10-inches (203 or 254 mm)

8 or 10-inches (203 or 254 mm)

Control System

Essentials

Essential Biosafety Cabinet Controls

  • Rocker switch controls
  • Window Alarm
  • Minihelic gauge to monitor plenum pressure (Airflow)

Essentials

Essential Biosafety Cabinet Controls

  • Rocker switch controls
  • Window Alarm
  • Minihelic gauge to monitor plenum pressure (Airflow)

AeroMax

Biosafety Cabinet AeroMax Controls

The Aeromax™ control system is designed to service the control requirements of the LabGard® ES NU-540 Biological Safety Cabinet. The Aeromax™ control system consists of an electronic module that will perform the following functions:

  • Easy user interface via LED’s and function keys
  • Control blower via solid state switch.
  • Control lights via solid state switch.
  • Control outlets via solid state switch.
  • Disable audible alarm switch with ringback function.
  • Control blower DC ECM motor 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 via PresurFlow™ monitor.

Interior

Stainless steel back wall divider with silicone

Stainless steel back wall divider with silicone

Double wall coved corner insert silicone-free

Shell Construction

Monolithic

Back wall plate

Monolithic

Work Tray

Welded support system

Welded support system

Work tray support system, removable for improved cleaning

Service Valve Configuration

Standard

  • One (1) Service Valve (right side wall)
  • One (1) Plugged Coupling (right side wall)

Standard

  • One (1) Service Valve (right side wall)
  • One (1) Plugged Coupling (right side wall)

Standard

  • One (1) Service Valve (right side wall)
  • One (1) Plugged Coupling (right side wall)
  • Two (2) Plugged Coupling (left sidewall)

Lighting

Fluorescent

Fluorescent

Fluorescent with LED Option

Biosafety cabinets have a 15-year usable life. NuAire’s product useable life and replacement parts support policy offer full support of biosafety cabinets for 15 years. If your BSC is reaching 15-years in age, it is time to start planning for your  replacement. LabGard model NU-540 Class II, Type A2 Biosafety Cabinet from NuAire Laboratory Equipment offers improved performance over models NU-425 and NU-475 at an affordable price.

Learn More about Model NU-540 Contact Us

About the Author

John Peters

Helping educate laboratory professionals about the proper selection, use, and maintenance of capital equipment throughout their lifespan to maximize your results. John Peters is the Marketing Director at NuAire, Inc. with a BS in Marketing with over ten years of experience in the Biological, Chemical, and Pharmaceutical containment equipment industry. John works closely with product engineers, industry professionals, and global standards to translate product specifications and best practices into easy to understand content.

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