Labconco XPert Filtered Balance Enclosure 3950301

Labconco XPert 3950301 3' Filtered Balance System

The Labconco XPert 3950301 3' Filtered Balance System is a compact, self-contained laboratory enclosure designed to protect personnel during weighing and handling of powders, particulates, and other potentially hazardous dry materials. Available used and refurbished from American Instrument Exchange, this specialized balance enclosure combines controlled inward airflow, built-in HEPA filtration, and an integrated blower in a compact 3-foot-wide workstation suitable for analytical and microbalance applications.

Unlike a conventional chemical fume hood, the XPert 3950301 is designed specifically around particulate containment and precision weighing. Airborne powders generated during weighing and transfer procedures are drawn away from the operator and through a 99.99% efficient exhaust HEPA filter. Filtered air is then returned to the laboratory, allowing the system to operate without external exhaust ductwork for appropriate particulate applications.

With exterior dimensions of approximately 36" W × 29" D × 37.1" H and an interior measuring approximately 33.6" W × 23.4" D × 22.7" H, the XPert provides enough depth for many analytical and microbalances while maintaining a relatively small laboratory footprint. Catalog 3950301 also incorporates a Guardian analog airflow monitor for continuous indication of airflow conditions.

Key Features

• Used and refurbished Labconco XPert Filtered Balance System

• Catalog number 3950301

• Compact 3-foot-wide powder weighing enclosure

• Designed for personnel protection during weighing and particulate-handling procedures

• Built-in variable-speed blower

• 99.99% efficient exhaust HEPA filtration

• HEPA-filtered air returned to the laboratory for appropriate applications

• No external ductwork required for standard recirculating operation

• Guardian analog airflow monitor

• Deep 23.4-inch interior accommodates many analytical and microbalances

• Clean-Sweep ergonomic air foil and zone-perforated rear baffle

• True bag-in/bag-out HEPA filter disposal system

• Negative-pressure enclosure design

• Angled, hinged tempered safety-glass sash

• Two utility ports for electrical cords and tubing

• 100–115 V, 60 Hz electrical requirements

• 90-day warranty included from American Instrument Exchange

Designed for Powder Weighing and Particulate Containment

Weighing fine powders presents a different containment challenge from handling volatile chemicals. Opening containers, transferring powders, using spatulas, and placing material onto weighing vessels can release small particles into the surrounding air and potentially expose the operator.

The Labconco XPert 3950301 is specifically designed to contain these airborne particulates during weighing procedures. Controlled inward airflow helps prevent powders generated inside the enclosure from escaping through the front opening, while the exhaust HEPA filter captures airborne particles before filtered air is returned to the laboratory.

This design makes the XPert particularly useful for pharmaceutical formulation, dry chemical weighing, analytical sample preparation, environmental testing, and other laboratory procedures where powder containment and accurate weighing are both important.

Built-In Blower and HEPA Filtration

One of the major advantages of the XPert 3950301 is its self-contained airflow system. A variable-speed blower and exhaust HEPA filter are integrated into the upper plenum, eliminating the need for a separate filtered exhauster in the standard configuration.

The HEPA filter is 99.99% efficient for particles 0.3 micron in size. Because filtered exhaust air can be returned directly to the laboratory for appropriate applications, no connection to an external building exhaust system is required.

The blower incorporates a dynamically balanced, vibration-isolated motorized impeller. Minimizing vibration is particularly important in a balance enclosure because sensitive analytical and microbalances can be affected by movement transmitted through the surrounding workstation.

This integrated design can substantially simplify installation compared with a conventional ducted enclosure while allowing the XPert to be relocated more easily if laboratory requirements change.

Guardian Airflow Monitor

Catalog number 3950301 is equipped with Labconco's Guardian analog airflow monitor. The monitor provides a continuous indication of airflow conditions so operators can recognize changes that may affect enclosure performance.

This is particularly useful in a filtered weighing enclosure because containment depends on maintaining appropriate inward airflow through the front opening.

The system also incorporates a front-mounted pressure gauge used to monitor HEPA filter loading. Increasing resistance across the filter can indicate when filter service or replacement should be evaluated.

Designed for Analytical and Microbalances

The XPert's interior measures approximately 33.6" W × 23.4" D × 22.7" H, providing enough depth to accommodate many analytical and microbalances along with weighing vessels, sample containers, spatulas, and other accessories required during powder-handling procedures.

Labconco's airflow design is specifically intended to combine containment with the needs of precision weighing. The Clean-Sweep air foil directs air across the work surface, while a zone-perforated rear baffle promotes controlled horizontal airflow through the enclosure.

Additional airflow-management features include side-entry air foils, an upper dilution air supply, upper containment sash foil, and upper diffuser screen.

For the best weighing performance, the XPert should be installed on a rigid, level work surface with minimal vibration, and the balance should be appropriately selected for operation within a ventilated enclosure.

Sash and Work Area Access

The XPert 3950301 incorporates a 1/4-inch-thick tempered safety-glass front sash and glass side panels, providing excellent visibility into the weighing area.

The sash is positioned at an ergonomic 10-degree angle and provides an approximately 9.4-inch working opening during normal operation. This relatively small opening helps maintain the inward airflow required for containment while still providing convenient access to samples and weighing equipment.

For loading a balance or larger equipment, the sash can pivot upward and lock in position to provide substantially greater access to the interior. A wiping seal helps contain contaminants around the sash assembly.

Two utility ports provide convenient pathways for balance power cords and other required connections without unnecessarily routing cables through the primary work opening.

Common Applications

The Labconco XPert 3950301 is particularly well suited for pharmaceutical powder weighing, formulation research, analytical sample preparation, dry chemical weighing, powdered reagent preparation, environmental sample processing, mold sample handling, asbestos-related laboratory procedures, and other applications involving fine particulates.

It can also serve as a dedicated contained weighing station for laboratories that routinely work with powders and want to reduce both operator exposure and contamination of surrounding laboratory surfaces.

Suitability for a specific compound should always be determined through an appropriate laboratory risk assessment based on the material, quantity, procedure, and potential exposure hazard.

Ideal Laboratory Environments

The XPert 3950301 is well suited for pharmaceutical research and development laboratories, formulation laboratories, biotechnology facilities, analytical chemistry laboratories, environmental testing laboratories, industrial quality control laboratories, university research facilities, and other laboratories that need dedicated particulate containment.

Its compact 3-foot width makes it especially useful where laboratory bench space is limited or where several dedicated weighing stations are preferred over one larger centralized enclosure.

Key Specifications

No External Ductwork Required

For appropriate particulate applications, one of the most significant advantages of the XPert 3950301 is its relatively simple installation.

The enclosure's blower and HEPA filter are built into the upper plenum. Instead of sending exhaust through facility ductwork to an external blower, filtered air is discharged back into the laboratory.

This can make the XPert especially useful when adding a powder weighing station to an existing laboratory where installing new exhaust ductwork would be difficult or expensive. It also provides greater flexibility if the laboratory is reorganized in the future.

The work surface and supporting base are separate components in Labconco's standard configuration, so buyers should confirm exactly what is included with this individual American Instrument Exchange unit before purchase.

Choosing an XPert Filtered Balance System vs. a Chemical Fume Hood

The XPert 3950301 and a conventional chemical fume hood are designed to address different laboratory hazards.

The XPert's HEPA filtration system is intended primarily for powders and airborne particulates. HEPA filters capture particles but do not remove most volatile chemical vapors or gases.

A conventional ducted chemical fume hood is generally the better choice when the primary hazard consists of solvent vapors, corrosive fumes, toxic gases, or other volatile chemicals that need to be exhausted from the building.

For laboratories weighing fine powders, dry chemicals, pharmaceutical ingredients, and other particulate materials, a purpose-designed filtered balance enclosure can provide a more appropriate combination of containment, workspace organization, and balance compatibility.

Refurbishment and Testing

This Labconco XPert 3950301 is inspected and refurbished by American Instrument Exchange prior to shipment. Our technicians inspect the enclosure, sash, blower, lighting, airflow components, airflow monitor, pressure gauge, and other operating features as applicable to the individual unit.

Because filtration performance is central to the intended use of the XPert, buyers should confirm the condition and configuration of the HEPA filter supplied with the individual enclosure before purchase. Final airflow performance should also be verified according to the requirements of the laboratory and intended application.

Why Buy a Refurbished Filtered Balance Enclosure from American Instrument Exchange?

A refurbished filtered balance enclosure can provide pharmaceutical, analytical, and research laboratories with dedicated powder containment at substantially lower cost than purchasing a comparable new workstation.

American Instrument Exchange also supplies analytical and precision balances, allowing laboratories to source both the weighing instrument and the containment enclosure required to build a complete powder weighing workstation.

In addition to balance enclosures, AIE offers chemical fume hoods, biosafety cabinets, clean benches, laboratory ventilation enclosures, and other containment equipment for a wide range of laboratory workflows.

This Labconco XPert 3950301 includes a 90-day warranty from American Instrument Exchange.

Frequently Asked Questions

What is the Labconco XPert 3950301 designed for?

The XPert 3950301 is designed primarily for contained weighing and handling of powders and particulates. Typical applications include pharmaceutical powder weighing, dry chemical preparation, analytical sample preparation, mold work, and other procedures where airborne particulates may present an exposure hazard.

Does the XPert 3950301 have a built-in blower?

Yes. A variable-speed blower is integrated into the enclosure's upper plenum along with the exhaust HEPA filter, eliminating the need for a separate filtered exhauster during standard recirculating operation.

Does the Labconco 3950301 require external ductwork?

No external ductwork is required for appropriate standard particulate applications. HEPA-filtered exhaust air is returned to the laboratory.

Can an analytical balance be used inside the XPert 3950301?

Yes. Analytical and microbalance applications are a primary purpose of the XPert Filtered Balance System. The 23.4-inch-deep interior accommodates many laboratory balances while leaving additional room for samples and weighing accessories.

What type of airflow monitor does catalog 3950301 have?

The 3950301 configuration is equipped with Labconco's Guardian analog airflow monitor. The closely related 3950302 configuration uses the Guardian 1000 Digital airflow monitor.

Is the XPert suitable for chemical vapors?

The standard HEPA filtration system is intended for particles rather than most chemical vapors or gases. Procedures involving significant quantities of volatile solvents or hazardous vapors should be evaluated for use with an appropriate chemical fume hood or another suitable containment system.

Does this enclosure provide product protection?

The XPert is designed primarily to protect personnel during particulate-handling procedures. It should not be treated as a clean bench or Class II biosafety cabinet when protection of the sample from ambient laboratory contamination is required.

Are the work surface and base included?

Labconco specifies a work surface and supporting base as required accessories rather than standard components of the 3950301 enclosure. Buyers should confirm the exact configuration included with this individual American Instrument Exchange unit before purchase.

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