TrippNT Small Draft Shield | Clear Acrylic Balance Enclosure with Overhang & Cord Port 50029

TrippNT Small Draft Shield — Heavy-Gauge Clear Acrylic Enclosure for Precision Balance Protection

The TrippNT Small Draft Shield (SKU 50029) is a procurement-grade draft protection enclosure engineered to safeguard top-loading analytical balances, micro-balances, and sensitive electrochemical instruments from the airflow disturbances that introduce measurement error in open laboratory environments. Unlike generic three-sided acrylic boxes that leave the top plane exposed to downward HVAC drafts, the TrippNT Small Draft Shield incorporates a purpose-engineered overhang panel that extends beyond the enclosure's top edge to intercept and deflect downward airflows before they reach the instrument's weighing zone. This overhang design is particularly critical in laboratories with overhead laminar flow hoods, ceiling-mounted HVAC diffusers, or high foot-traffic corridors where transient air currents consistently corrupt microgram-level weighing accuracy. At 13 × 13 × 14¼ inches, the shield's cube form factor fully encloses the balance pan and display zone of most standard top-loading laboratory balances.

Fabricated from 3/16-inch clear optical-grade acrylic, the Small Draft Shield delivers the structural rigidity and panel clarity required for high-precision laboratory enclosure applications. The thick-gauge acrylic construction resists the panel flexing and stress-cracking that compromise thinner injection-molded draft boxes over time, maintaining a stable enclosure geometry that does not shift or bow under repeated cleaning or temperature fluctuation. A semi-circular cutout at the rear panel allows cables, data leads, RS-232 connectors, and power cords to pass through cleanly without gaps that would compromise draft protection — eliminating the cable routing compromises required by solid-panel alternatives. The clear acrylic construction provides unobstructed sightlines to the balance display and sample pan from all angles, and the smooth non-porous surface can be disinfected with standard laboratory cleaning agents without surface hazing or crazing under normal use conditions.

Technical Specifications

Laboratory Applications

The Small Draft Shield is ideally deployed in analytical chemistry, pharmaceutical QC, compounding pharmacy, materials science, and forensic laboratory environments where balance measurement accuracy at the milligram or microgram level is a regulatory and procedural requirement. The overhang panel design makes it particularly effective in open-plan laboratories without dedicated balance rooms, where overhead HVAC systems, personnel movement, and fume hood exhaust create persistent low-velocity air currents that introduce weighing variability. The rear cord passthrough accommodates RS-232 and USB data outputs for connected balances used in 21 CFR Part 11-compliant data recording workflows, GMP batch record systems, and LIMS-integrated weighing stations. The shield is equally suitable for protecting sensitive electrochemical instruments — including pH meters, conductivity meters, dissolved oxygen analyzers, and ion-selective electrode setups — from convective air currents that destabilize electrode equilibration and extend measurement time.

Product Documentation

• SKU 50029 — Small Draft Shield: Official Spec Sheet & Engineering Drawing (PDF)

Made in the U.S.A. & Lifetime Guarantee

Proudly manufactured in the United States by TrippNT. This draft shield is backed by a 100% Lifetime Guarantee, ensuring it is a permanent asset for your laboratory. Institutional pricing and bulk discounts are available for universities, hospital systems, and government agencies.

Frequently Asked Questions

What is the interior clearance of the Small Draft Shield, and will it fit over a standard top-loading analytical balance?

The Small Draft Shield provides an interior envelope of 13 × 13 × 14¼ inches (W × H × D), which accommodates most standard compact top-loading analytical balances with display heights up to approximately 13 inches. For semi-micro or micro-analytical balances with taller enclosures or extended display towers, TrippNT offers this draft shield in three additional sizes. Refer to the engineering drawing in the spec sheet linked above for precise panel thickness and interior clearance dimensions before specifying for a particular balance model.

Can the Small Draft Shield be used with a balance that has a built-in draft shield enclosure?

Yes. The TrippNT Small Draft Shield is designed to function as a supplemental environmental enclosure placed over or around balances that have factory-installed draft shield panels. In high-disturbance laboratory environments — such as those adjacent to fume hoods, in open-plan research areas, or in facilities with variable HVAC performance — a supplemental outer shield significantly reduces residual airflow disturbance that penetrates factory draft shield gaps around the pan access doors. The rear cord passthrough accommodates all cable connections without requiring removal of the shield between measurements.