Surface Measurement Systems – DVS Resolution

Technical Specifications

Temperature (Temperature-controlled enclosure)		Temperature controlled enclosure Control range: 5 °C to 85 °C Control precision: ±0.1°C Enclosure also provides anti-condensation protection
	High-temperature pre-heater for sample drying/activation	Delivers local sample temperatures of up to 200 °C Heating ramp rates: up to 5 °C / min Sensor: Pt-100 thermocouple
Mass Measurement	Ultrabalance Low Mass	Sample mass: between 1 and 1000mg Mass change: ±150mg Resolution (precision): 0.1 μg Root mean square balance noise: ≤ 0.3 μg
	Ultrabalance High Mass	Sample mass: between 10 and 5000mg Mass change: ±1000mg Resolution (precision): 1 μg Root mean square balance noise: ≤ 3 μg
Resolution Stand		Manifold: 316 stainless steel Seals: Viton Tubing: 1/4 inch stainless steel
Solvent Reservoirs		Material: Pyrex glass 25 and 0.5L as standard 2 Reservoirs included
Relative humidity generation, measurement, & sensor	High-accuracy digital mass flow controllers and capacitance probe	Carrier Gas – Dry air or Nitrogen Relative humidity range from 0 to 98% RH range accuracy from 5 – 60 °C ±1% RH range accuracy from 60 – 85 °C ±2%
Organic vapor measurement with Speed of Sound Sensor	High-accuracy digital mass flow controllers for vapor and gas delivery
Speed of Sound Sensor for organic vapors	In-line real-time Speed-of-Sound Sensor for organic vapor Partial Pressure (P/Po) measurements and control with a typical resolution of ±0.1% P/Po	Automated zeroing of Speed of Sound sensor prior to each experiment Carrier Gas – Dry air or NitrogenPartial Pressure range from 0 to 90% Partial Pressure accuracy from 10 – 70 °C ±1%
	Note: SMS limits the use of organic solvents to 20°C below their boiling points.

Technical Specifications

System Software

Next-generation purpose-built control and evaluation software for the most advanced experimental design and data analysis.

DVS Control

Complex protocols for multiple experimental sequences using sample pre-heating and conditioning; isotherm, isobar, and ramped humidity and organic vapor methods; single or dual vapor delivery and control; a fixed time or mass derivative steps.

Multiple-method protocols incorporating	• Sample pre-heating • Vapor sorption • Vapor exchange • Dual vapor co-adsorption • Temperature changes in a single experiment, including • Ramp or step changes in relative humidity • Automated video image acquisition • Organic vapor sorption partial pressure • Temperature stages may be based on fixed-time or user-defined dm/dt criteria • Complex isotherm experiments • Experiments may include half, full, or multiple partial pressure or temperature cycles
Analysis	• Isotherms • Permeability and diffusion • Kinetics information • Heat of sorption • Tg determinations • Amorphous content • BET
	21CFR Part 11 software solution is available for all DVS software upon request.

Solvents Available

Acetone	Chloroform	Cyclohexane	Decane	Dichloromethane	Ethanol
Ethyl acetate	Ethyl benzene	Heptane	Hexane	Isopropanol	Methanol
Nonane	Octane	Toluene	Water	M-Xylene	p-Xylene

Key Features

Key Industries

• Biopharmaceutical and Biotechnology
• Cosmetics & Personal Care
• Education & Academics
• Food & Beverage
• Medical
• Mining & Minerals
• Pharmaceutical
• Polymers, Plastics and Rubbers