LabGard B1 NU-427 Class II Type B1 Biosafety Cabinet
The NU-427 preserves the Class II Type B1 cabinet's traditional role of serving as an intermediate option between recirculating and total exhaust cabinets but gives this design a state-of-the-art control system.
The NU-427 preserves the Class II Type B1 cabinet's traditional role of serving as an intermediate option between recirculating and total exhaust cabinets but gives this design a state-of-the-art control system.
- Overview
- Specifications
- Resources
Overview
The NU-427 preserves the Class II Type B1 cabinet's traditional role of serving as an intermediate option between recirculating and total exhaust cabinets but with a control system fit for modern applications. By exhausting air from the entire length of the back half of the work zone through slots in the back wall, this design not only allows users to continue the recommended practice of working "clean to dirty" and deep inside the work zone but also leaves the dished work surface intact to retain spills. This exhaust is powered by an external facility blower that is interlocked with the cabinet's own motor through a redundant system to provide two layers of protection that minimize the risk of blowing air out of the cabinet should the external blower fail: cabinet exhaust is monitored by not only a mechanical pressure switch but also a differential velocity pressure-flow grid. A touch screen displays the readings from both this flow grid and a downflow sensor in the work zone at all times for the cabinet operator. Standard models meet the requirements of the respected NSF/ANSI 49 standard for biosafety cabinets.
TouchLink Control System
The airflow dynamics in an externally exhausted type B2 cabinet need to work in constant harmony. The TouchLink control system displays inflow velocity, downflow velocity, and exhaust volume on a single, easy to read front screen. The digital control system interlocks the downflow blower with the external exhaust to shut down the motor if an exhaust failure occurs—a safeguard that is further backed up by a mechanical pressure switch.
Digital Exhaust Flow Grid
The digital differential velocity pressure flow monitors exhaust to enable the TouchLink to derive not only inflow velocity but also the critical parameter of exhaust volume for display to the cabinet operator.
Downflow Air Sensor
The downflow sensor measures velocity inside the work zone and passes the data to the TouchLink display to assure users of product protection, a critical aspect in many pharmaceutical and biotechnology applications.
Performance History
The TouchLink control panel showcases a week's worth of cabinet performance data on-screen, while also facilitating the download of a full month's operational history to a USB. This feature is essential for procedures requiring documented airflow conditions in compliance with Good Manufacturing Practice (GMP) standards.
Specifications
| Access Opening Glass Type | Tempered Glass |
| Cabinet Construction | All welded stainless steel 16/18 GA, Type 304 pressure tight design |
| Casters | N/A |
| Decontamination Seal-able Window | N/A |
| Diffuser | Metal, non-flammable |
| Drain Valve Location | Front right |
| Exhaust Filter | 11 1/2-inch (292 mm) 99.99% Efficiency on 0.3 Microns |
| Front & Control Panel Material | Painted Steel |
| HEPA Filter Seal Type | HEPEX Zero Leak Neoprene Seal, Spring-loaded |
| Lighting | Fluorescent |
| Main Cabinet Wrap | Single Piece Stainless Steel Side and Back Wall Construction |
| Motor(s) | 1/2 HP DC ECM |
| Plenum Type | HEPEX |
| Pre-filter | N/A |
| Style | Bench top, optional base stand |
| Supply Filter | 5-7/8 inch (149mm) 99.99% Efficiency on 0.3 Microns |
| Viewing Window Inches (mm) | 18.5 (407) open to fully closed |
| Work Access Opening(s) | 8-inch (203mm) |
| Work Surface | One-Piece Dished Stainless Steel, Optional Prop-Up Rod |
| Work Zone Wrap | N/A; Back Wall Inserted into Main Cabinet Wrap |
| Data Output Features | USB |
| Remote Alarm Terminals | Standard |
| Est. Shipping Depth Inches (mm) | 43 (1092) |
| Est. Shipping Height Inches (mm) | 71 (1803) |
| Est. Shipping Width Inches (mm) | 59 (1499) |
| Exterior Depth with Armrest Removed Inches (mm) | 33 1/4 (845) |
| Exterior Height (Minimum for Transport) Inches (mm) | 61 (1549) |
| Exterior Height Inches (mm) | 61 3/8 (1559) |
| Exterior Height with 30-inch Work Surface Height inches (mm) | 87 7/8 (2232) |
| Exterior Height with 36-inch Work Surface Height inches (mm) | 93 7/8 (2385) |
| Exterior Width Inches (mm) | 53 5/8 (1362) |
| Nominal Width Feet (Meters) | 4 ft. (1.2m) |
| Useable Work Tray Area Depth Inches (mm) | 17 3/4 (451) |
| Useable Work Tray Area Width Inches (mm) | 45 5/8 (1159) |
| Work Area Depth Measured at 8-inches Window Height Inches (mm) | 23 1/2 (597) |
| Work Area Height Inches (mm) | 25 1/2 (648) |
| Work Area Width Inches (mm) | 46 3/8 (1178) |
| Blower/Lights Amps | 2.6 |
| Electrical Configuration | 115V60Hz |
| Junction Box | Optional |
| Outlet Amps | 3 |
| Power Cord | 14 GA - 3 Wire, 15A |
| Power Cord Length Foot (Meter) | 12 (3.7) |
| Rated Amps | 10 |
| Light Intensity fc (Lux) | 90-120 (968-1291) |
| Reach into workzone Inches (mm) | 6 (152) |
| Sound Pressure Level per ISO 4871 | Inquire |
| Bag In Bag Out | Optional |
| Direct Connection Exhaust Requirement Concurrent Balance Value, CFM(CMH) | 282 (479) |
| Other Built-in Exhaust Option(s) | Optional Charcoal Module, Optional 99.995% Efficient Metal-Frame Filter |
| Plant Duct Static Pressure Inches (mm) | 0.7" w.g. / 18mm w.g |
| Performance Standard | NSF-ANSI-49 |
| Safety Certification |
| Air Cleanliness (ISO 14644) | ISO-Class-5 |
| Downflow fpm (m/s) | 70 fpm (0.36 m/s) |
| Fumigation: per NIH/NSF Procedures | True |
| Heat Rejected (BTU/Hour) | 543 |
| Inflow fpm (m/s) | 105 fpm (0.53 m/s) |
| Protection | Product, Personnel, Environmental |
| Airflow Monitor | AirflowSensorPressureGrid |
| Control System | TouchLink |
| Est. Shipping Weight lbs (kg) | 600 (272) |
| Net Weight lbs (kg) | 427 (249) |
| Access Opening Glass Type | Tempered Glass |
| Cabinet Construction | All welded stainless steel 16/18 GA, Type 304 pressure tight design |
| Casters | N/A |
| Decontamination Seal-able Window | N/A |
| Diffuser | Metal, non-flammable |
| Drain Valve Location | Front right |
| Exhaust Filter | 11 1/2-inch (292 mm) 99.99% Efficiency on 0.3 Microns |
| Front & Control Panel Material | Painted Steel |
| HEPA Filter Seal Type | HEPEX Zero Leak Neoprene Seal, Spring-loaded |
| Lighting | Fluorescent |
| Main Cabinet Wrap | Single Piece Stainless Steel Side and Back Wall Construction |
| Motor(s) | 1/2 HP DC ECM |
| Plenum Type | HEPEX |
| Pre-filter | N/A |
| Style | Bench top, optional base stand |
| Supply Filter | 5-7/8 inch (149mm) 99.99% Efficiency on 0.3 Microns |
| Viewing Window Inches (mm) | 18.5 (407) open to fully closed |
| Work Access Opening(s) | 8-inch (203mm) |
| Work Surface | One-Piece Dished Stainless Steel, Optional Prop-Up Rod |
| Work Zone Wrap | N/A; Back Wall Inserted into Main Cabinet Wrap |
| Data Output Features | USB |
| Remote Alarm Terminals | Standard |
| Est. Shipping Depth Inches (mm) | 43 (1092) |
| Est. Shipping Height Inches (mm) | 71 (1803) |
| Est. Shipping Width Inches (mm) | 59 (1499) |
| Exterior Depth with Armrest Removed Inches (mm) | 33 1/4 (845) |
| Exterior Height (Minimum for Transport) Inches (mm) | 61 (1549) |
| Exterior Height Inches (mm) | 61 3/8 (1559) |
| Exterior Height with 30-inch Work Surface Height inches (mm) | 87 7/8 (2232) |
| Exterior Height with 36-inch Work Surface Height inches (mm) | 93 7/8 (2385) |
| Exterior Width Inches (mm) | 53 5/8 (1362) |
| Nominal Width Feet (Meters) | 4 ft. (1.2m) |
| Useable Work Tray Area Depth Inches (mm) | 17 3/4 (451) |
| Useable Work Tray Area Width Inches (mm) | 45 5/8 (1159) |
| Work Area Depth Measured at 8-inches Window Height Inches (mm) | 23 1/2 (597) |
| Work Area Height Inches (mm) | 25 1/2 (648) |
| Work Area Width Inches (mm) | 46 3/8 (1178) |
| Blower/Lights Amps | 1.3 |
| Electrical Configuration | 230V5060Hz |
| Junction Box | Optional |
| Outlet Amps | 3 |
| Power Cord | 14 GA - 3 Wire, 15A |
| Power Cord Length Foot (Meter) | 12 (3.7) |
| Rated Amps | 10 |
| Light Intensity fc (Lux) | 90-120 (968-1291) |
| Reach into workzone Inches (mm) | 6 (152) |
| Sound Pressure Level per ISO 4871 | Inquire |
| Bag In Bag Out | Optional |
| Direct Connection Exhaust Requirement Concurrent Balance Value, CFM(CMH) | 282 (479) |
| Other Built-in Exhaust Option(s) | Optional Charcoal Module, Optional 99.995% Efficient Metal-Frame Filter |
| Plant Duct Static Pressure Inches (mm) | 0.7" w.g. / 18mm w.g |
| Performance Standard | NSF-ANSI-49 |
| Safety Certification |
| Air Cleanliness (ISO 14644) | ISO-Class-5 |
| Downflow fpm (m/s) | 70 fpm (0.36 m/s) |
| Fumigation: per NIH/NSF Procedures | True |
| Heat Rejected (BTU/Hour) | 774 |
| Inflow fpm (m/s) | 105 fpm (0.53 m/s) |
| Protection | Product, Personnel, Environmental |
| Airflow Monitor | AirflowSensorPressureGrid |
| Control System | TouchLink |
| Est. Shipping Weight lbs (kg) | 600 (272) |
| Net Weight lbs (kg) | 427 (249) |
| Access Opening Glass Type | Tempered Glass |
| Cabinet Construction | All welded stainless steel 16/18 GA, Type 304 pressure tight design |
| Casters | N/A |
| Decontamination Seal-able Window | N/A |
| Diffuser | Metal, non-flammable |
| Drain Valve Location | Front right |
| Exhaust Filter | 11 1/2-inch (292 mm) 99.99% Efficiency on 0.3 Microns |
| Front & Control Panel Material | Painted Steel |
| HEPA Filter Seal Type | HEPEX Zero Leak Neoprene Seal, Spring-loaded |
| Lighting | Fluorescent |
| Motor(s) | 3/4 HP DCM |
| Motor(s) | 1/2 HP DC ECM |
| Plenum Type | HEPEX |
| Pre-filter | N/A |
| Supply Filter | 5-7/8 inch (149mm) |
| Supply Filter | 5-7/8 inch (149mm) 99.99% Efficiency on 0.3 Microns |
| Viewing Window Inches (mm) | 18.5 (407) open to fully closed |
| Work Access Opening(s) | 8-inch (203mm) |
| Work Surface | One-Piece Dished Stainless Steel, Optional Prop-Up Rod |
| Work Zone Wrap | N/A; Back Wall Inserted into Main Cabinet Wrap |
| Data Output Features | USB |
| Remote Alarm Terminals | Standard |
| Est. Shipping Depth Inches (mm) | 43 (1092) |
| Est. Shipping Height Inches (mm) | 71 (1803) |
| Est. Shipping Width Inches (mm) | 83 (2108) |
| Exterior Depth with Armrest Removed Inches (mm) | 33 1/4 (845) |
| Exterior Height (Minimum for Transport) Inches (mm) | 61 (1549) |
| Exterior Height Inches (mm) | 61 3/8 (1559) |
| Exterior Height with 30-inch Work Surface Height inches (mm) | 87 7/8 (2232) |
| Exterior Height with 36-inch Work Surface Height inches (mm) | 93 7/8 (2385) |
| Exterior Width Inches (mm) | 77 5/8 (1972) |
| Nominal Width Feet (Meters) | 6 ft. (1.2m) |
| Useable Work Tray Area Depth Inches (mm) | 17 3/4 (451) |
| Useable Work Tray Area Width Inches (mm) | 69 5/8 (1768) |
| Work Area Depth Measured at 8-inches Window Height Inches (mm) | 23 1/2 (597) |
| Work Area Height Inches (mm) | 25 1/2 (648) |
| Work Area Width Inches (mm) | 70 3/8 (1788) |
| Blower/Lights Amps | 4.5 |
| Electrical Configuration | 115V60Hz |
| Junction Box | Optional |
| Outlet Amps | 3 |
| Power Cord | 14 GA - 3 Wire, 15A |
| Power Cord Length Foot (Meter) | 12 (3.7) |
| Rated Amps | 12 |
| Light Intensity fc (Lux) | 90-120 (968-1291) |
| Reach into workzone Inches (mm) | 6 (152) |
| Sound Pressure Level per ISO 4871 | Inquire |
| Bag In Bag Out | Optional |
| Direct Connection Exhaust Requirement Concurrent Balance Value, CFM(CMH) | 474 (805) |
| Other Built-in Exhaust Option(s) | Optional Charcoal Module, Optional 99.995% Efficient Metal-Frame Filter |
| Plant Duct Static Pressure Inches (mm) | 0.9" w.g. / 23mm w.g. |
| Performance Standard | NSF-ANSI-49 |
| Safety Certification |
| Air Cleanliness (ISO 14644) | ISO-Class-5 |
| Downflow fpm (m/s) | 70 fpm (0.36 m/s) |
| Fumigation: per NIH/NSF Procedures | True |
| Heat Rejected (BTU/Hour) | 774 |
| Inflow fpm (m/s) | 105 fpm (0.53 m/s) |
| Protection | Product, Personnel, Environmental |
| Airflow Monitor | AirflowSensorPressureGrid |
| Control System | TouchLink |
| Est. Shipping Weight lbs (kg) | 790 (358) |
| Net Weight lbs (kg) | 740 (336) |
| Access Opening Glass Type | Tempered Glass |
| Cabinet Construction | All welded stainless steel 16/18 GA, Type 304 pressure tight design |
| Casters | N/A |
| Decontamination Seal-able Window | N/A |
| Diffuser | Metal, non-flammable |
| Drain Valve Location | Front right |
| Exhaust Filter | 11 1/2-inch (292 mm) 99.99% Efficiency on 0.3 Microns |
| Front & Control Panel Material | Painted Steel |
| HEPA Filter Seal Type | HEPEX Zero Leak Neoprene Seal, Spring-loaded |
| Lighting | Fluorescent |
| Motor(s) | 3/4 HP DCM |
| Motor(s) | 1/2 HP DC ECM |
| Plenum Type | HEPEX |
| Pre-filter | N/A |
| Supply Filter | 5-7/8 inch (149mm) |
| Supply Filter | 5-7/8 inch (149mm) 99.99% Efficiency on 0.3 Microns |
| Viewing Window Inches (mm) | 18.5 (407) open to fully closed |
| Work Access Opening(s) | 8-inch (203mm) |
| Work Surface | One-Piece Dished Stainless Steel, Optional Prop-Up Rod |
| Work Zone Wrap | N/A; Back Wall Inserted into Main Cabinet Wrap |
| Data Output Features | USB |
| Remote Alarm Terminals | Standard |
| Est. Shipping Depth Inches (mm) | 43 (1092) |
| Est. Shipping Height Inches (mm) | 71 (1803) |
| Est. Shipping Width Inches (mm) | 83 (2108) |
| Exterior Depth with Armrest Removed Inches (mm) | 33 1/4 (845) |
| Exterior Height (Minimum for Transport) Inches (mm) | 61 (1549) |
| Exterior Height Inches (mm) | 61 3/8 (1559) |
| Exterior Height with 30-inch Work Surface Height inches (mm) | 87 7/8 (2232) |
| Exterior Height with 36-inch Work Surface Height inches (mm) | 93 7/8 (2385) |
| Exterior Width Inches (mm) | 77 5/8 (1972) |
| Nominal Width Feet (Meters) | 6 ft. (1.2m) |
| Useable Work Tray Area Depth Inches (mm) | 17 3/4 (451) |
| Useable Work Tray Area Width Inches (mm) | 69 5/8 (1768) |
| Work Area Depth Measured at 8-inches Window Height Inches (mm) | 23 1/2 (597) |
| Work Area Height Inches (mm) | 25 1/2 (648) |
| Work Area Width Inches (mm) | 70 3/8 (1788) |
| Blower/Lights Amps | 2.2 |
| Electrical Configuration | 230V5060Hz |
| Junction Box | Optional |
| Outlet Amps | 3 |
| Power Cord | 14 GA - 3 Wire, 15A |
| Power Cord Length Foot (Meter) | 12 (3.7) |
| Rated Amps | 11 |
| Light Intensity fc (Lux) | 90-120 (968-1291) |
| Reach into workzone Inches (mm) | 6 (152) |
| Sound Pressure Level per ISO 4871 | Inquire |
| Bag In Bag Out | Optional |
| Direct Connection Exhaust Requirement Concurrent Balance Value, CFM(CMH) | 474 (805) |
| Other Built-in Exhaust Option(s) | Optional Charcoal Module, Optional 99.995% Efficient Metal-Frame Filter |
| Plant Duct Static Pressure Inches (mm) | 0.9" w.g. / 23mm w.g. |
| Performance Standard | NSF-ANSI-49 |
| Safety Certification |
| Air Cleanliness (ISO 14644) | ISO-Class-5 |
| Downflow fpm (m/s) | 70 fpm (0.36 m/s) |
| Fumigation: per NIH/NSF Procedures | True |
| Heat Rejected (BTU/Hour) | 774 |
| Inflow fpm (m/s) | 105 fpm (0.53 m/s) |
| Protection | Product, Personnel, Environmental |
| Airflow Monitor | AirflowSensorPressureGrid |
| Control System | TouchLink |
| Est. Shipping Weight lbs (kg) | 790 (358) |
| Net Weight lbs (kg) | 740 (336) |
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