AS ONE DAS-01 Compact Oil-Free Diaphragm Vacuum Pump (AC 100 V)

Overview

The AS ONE DAS-01 is a compact, oil-free diaphragm vacuum pump engineered for reliable, maintenance-free operation in general laboratory environments. Operating on AC 100 V input power, it employs a sealed, corrosion-resistant diaphragm mechanism to generate vacuum without lubricating oil—eliminating risk of oil backstreaming, vapor contamination, or scheduled oil changes. Its core principle relies on reciprocating diaphragm displacement to evacuate air from connected systems, achieving stable ultimate vacuum levels suitable for low-to-moderate vacuum applications. Designed specifically for benchtop deployment, the DAS-01 delivers consistent suction performance independent of ambient temperature or coolant supply—making it ideal for settings where water-cooled pumps are impractical or prohibited. Unlike water aspirators, its vacuum output remains unaffected by inlet water temperature fluctuations, ensuring reproducible process conditions across extended operation cycles.

Key Features

• Oil-free diaphragm technology ensures clean, hydrocarbon-free vacuum generation—critical for solvent-sensitive applications such as rotary evaporation and vacuum filtration.
• Integrated vacuum regulation knob enables precise, manual control of operating pressure—facilitating optimization for delicate samples or volatile solvents requiring gradual pressure ramping.
• Compact footprint (268 × 107 × 295 mm, excluding protrusions) and integrated carrying handle support flexible placement on fume hoods, laminar flow benches, or mobile lab carts.
• RoHS 2 (EU) 2015/863 compliant construction reflects adherence to environmental and material safety standards for electronic components and housing materials.
• No external cooling water required—enables deployment in dry labs, field laboratories, or ISO-classified cleanrooms where plumbing infrastructure is unavailable or restricted.
• Low-vibration motor and elastomeric mounting minimize mechanical transmission to sensitive instrumentation mounted on shared optical tables or analytical platforms.

Sample Compatibility & Compliance

The DAS-01 is compatible with standard laboratory vacuum interfaces including 8–10 mm ID tubing, BPG (barometric pressure gauge) ports, and common vacuum flask ground joints (e.g., 24/40, 29/32). It supports continuous operation under typical load conditions encountered during rotary evaporation of low-boiling solvents (e.g., dichloromethane, ethyl acetate), Büchner funnel filtration of aqueous or organic suspensions, and degassing of adhesives or resin prepolymers. While not rated for high-vacuum applications (<1 mbar), its performance aligns with ASTM D1720 (Standard Test Method for Vacuum Degassing of Liquids) and ISO 2782-1 (Rubber—Determination of Vacuum Properties) for routine vacuum-assisted sample preparation. The unit’s electrical design conforms to IEC 61010-1:2010 for safety in laboratory equipment, and its material declarations satisfy EU REACH SVHC screening requirements.

Software & Data Management

The DAS-01 operates as a standalone analog device with no embedded microcontroller, firmware, or digital interface. Consequently, it does not feature data logging, remote monitoring, or software integration capabilities. This design prioritizes operational simplicity, electromagnetic compatibility (EMC), and long-term reliability in electromagnetically noisy environments—such as those adjacent to NMR spectrometers, mass spectrometers, or RF-based instrumentation. For GLP/GMP-regulated workflows requiring audit trails, users may pair the pump with external pressure transducers (e.g., capacitance manometers) and validated data acquisition systems compliant with FDA 21 CFR Part 11. Calibration of associated vacuum sensors should follow ISO/IEC 17025 procedures when used in quality-critical applications.

Applications

• Rotary evaporation of heat-labile compounds and low-boiling solvents under controlled vacuum.
• Gravity and vacuum-assisted filtration using Büchner or Hirsch funnels with filter paper or membrane filters.
• Deaeration of casting resins, dental impression materials, and polymer composites prior to curing.
• Sample preparation for SEM stub mounting, freeze-drying pre-treatment, and lyophilization manifold evacuation.
• Gas purging of Schlenk lines and inert-atmosphere glovebox antechambers (as auxiliary roughing pump).
• Supporting vacuum desiccators in stability testing per ICH Q1A(R2) guidelines.

FAQ

What is the ultimate vacuum level achievable with the DAS-01?
The DAS-01 achieves an ultimate vacuum of approximately 10–15 mbar (absolute) under standard laboratory conditions (23 °C, 50% RH) with clean, dry air load and properly sealed connections.
Can this pump be used continuously for 8+ hours per day?
Yes—the pump is rated for intermittent and continuous duty cycles; however, optimal service life is maintained when operated within ambient temperatures of 15–30 °C and relative humidity below 80% non-condensing.
Is the DAS-01 suitable for pumping corrosive vapors such as HCl or Cl₂?
No—while the diaphragm and valve materials resist mild organics and moisture, they are not chemically resistant to strong acids, halogens, or oxidizing agents; use of inline chemical traps or alternative PTFE-lined pumps is recommended for such applications.
Does the unit include a vacuum gauge?
No—the DAS-01 does not incorporate an integrated pressure indicator; users must connect an external analog or digital vacuum gauge calibrated to the relevant pressure range.
What maintenance is required?
Routine inspection of inlet filter (if installed), periodic cleaning of exterior vents, and replacement of diaphragm and valve assemblies every 12–18 months under typical usage—per AS ONE Service Bulletin SB-DAS01-2023.