DispensMate-Pro Bottle Top Dispenser by DLAB
| Brand | DLAB |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Manual Bottle Top Dispenser |
| Model | DispensMate-Pro |
| Volume Range | 0.5–5 mL, 1–10 mL, 2.5–25 mL, 5–50 mL, 10–100 mL |
| Minimum Graduation | 0.1 mL |
| Accuracy | ±0.2% |
| Maximum Permissible Error | ±0.5% |
| Max. Operating Pressure | 500 mbar |
| Max. Kinematic Viscosity Tolerance | 500 mm²/s |
| Max. Liquid Temperature | 40 °C |
| Max. Liquid Density | 2.2 g/cm³ |
| Construction Materials | PTFE, FEP, Hastelloy®, PP |
| Included Adapters | S40, GL25, GL28, GL32, GL38 |
Overview
The DispensMate-Pro Bottle Top Dispenser is a precision-engineered manual liquid handling device designed for accurate, repeatable, and contamination-free dispensing of reagents directly from standard laboratory bottles. Based on positive displacement piston technology, it operates without reliance on external power or air pressure—ensuring consistent volumetric delivery across the full calibrated range, independent of operator technique or liquid properties within specified physical limits. Its modular design supports seamless integration with common bottle neck standards (S40, GL25–GL38), making it suitable for routine QC testing, analytical sample preparation, titration workflows, and GMP-aligned reagent distribution in pharmaceutical and chemical laboratories.
Key Features
- Five interchangeable volume models covering 0.5–100 mL ranges, each factory-calibrated to ISO 8655-3 and verified per ASTM E542 guidelines for piston-type dispensers.
- Chemically inert wetted components—including PTFE seals, FEP-coated pistons, Hastelloy® springs, and polypropylene housing—ensuring compatibility with aggressive solvents (e.g., concentrated acids, bases, halogenated organics) and minimizing adsorption or leaching.
- Autoclavable at 121 °C for 20 minutes (without adapter assembly), supporting sterile applications in microbiology and cell culture workflows where non-pyrogenic handling is required.
- Integrated return valve enables controlled retraction of excess liquid into the reservoir bottle, eliminating waste and reducing exposure risk during over-dispense correction.
- Retractable inlet tube accommodates variable bottle depths and simplifies priming; dual-scale volume indicators (main scale + fine-adjustment vernier) enhance readability and reduce parallax error.
- Mechanically robust architecture with stainless-steel drive mechanism and ergonomic thumb-wheel operation ensures long-term dimensional stability and reproducibility (CV ≤ 0.2% under GLP-compliant usage conditions).
Sample Compatibility & Compliance
The DispensMate-Pro is validated for use with liquids exhibiting kinematic viscosity up to 500 mm²/s (cSt), density up to 2.2 g/cm³, and temperature up to 40 °C. It complies with ISO 8655-3 (volumetric accuracy of piston-operated dispensers), ISO 9001 manufacturing quality systems, and meets material biocompatibility requirements per USP and . All models are supplied with five universal bottle adapters (S40, GL25, GL28, GL32, GL38) to ensure mechanical sealing integrity and leak-free operation across diverse container geometries. Device construction excludes phthalates, latex, and heavy metals—supporting compliance with RoHS and REACH directives.
Software & Data Management
As a fully manual, non-electronic instrument, the DispensMate-Pro does not incorporate embedded firmware or digital connectivity. However, its calibration traceability aligns with FDA 21 CFR Part 11 requirements when used in conjunction with documented calibration logs, operator training records, and maintenance schedules. Each unit ships with a certificate of conformance referencing NIST-traceable reference standards, and optional calibration verification kits (DLAB Cat. No. CAL-KIT-PRO) enable in-house performance checks per ISO/IEC 17025-accredited protocols. Audit trails for calibration events, usage frequency, and cleaning intervals can be maintained manually or integrated into LIMS via standardized SOP templates.
Applications
- Accurate dilution series preparation for HPLC mobile phase formulation and ICP-MS standard calibration.
- Controlled addition of hazardous reagents (e.g., hydrofluoric acid, bromine) in fume hood environments using closed-system dispensing.
- Reproducible media component dosing in microbial fermentation studies requiring batch-to-batch consistency.
- Standardized buffer exchange in protein purification workflows where pH-sensitive solutions demand minimal air exposure.
- QC release testing of raw materials in accordance with pharmacopeial monographs (USP , EP 2.2.45) where manual dispensing remains the prescribed method.
FAQ
Is the DispensMate-Pro compatible with organic solvents such as acetone or chloroform?
Yes—wetted parts consist of PTFE, FEP, and Hastelloy®, providing broad resistance to halogenated and polar aprotic solvents. Always verify chemical compatibility using DLAB’s published resistance chart before extended exposure.
Can it be sterilized in an autoclave?
Yes—the main body (excluding adapter rings and O-rings) is autoclavable at 121 °C for 20 minutes. Replace silicone O-rings after every third autoclaving cycle to maintain seal integrity.
What is the recommended recalibration interval?
DLAB recommends annual calibration verification under routine use; more frequent checks are advised when handling high-value reagents or operating near maximum viscosity/density limits.
Does the return valve require maintenance?
The return valve is self-cleaning and requires no disassembly—simply flush with compatible solvent after each use. Inspect for particulate buildup quarterly if used with suspensions or undissolved salts.
Are replacement parts available separately?
Yes—PTFE pistons, FEP sleeves, Hastelloy® springs, and adapter sets are stocked globally under DLAB part numbers beginning with “7032” and “ADP-”.
