Surface Measurement Systems – DVS Endeavour

Technical Specifications

Temperature		Temperature controlled enclosure Control range: 10°C to 70oC Control precision: ± 0.1oC Enclosure 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 Sensors: Pt-100 thermocouple
Mass Measurement	Ultrabalance Low Mass	Maximum load: 1000 mg Mass change: ±150 mg Resolution: 0.01 μg Balance noise: ≤ 0.3 μg
	Ultrabalance High Mass	Maximum load: 5000 mg Mass change: ±1000 mg Resolution: 0.1 μg Balance noise: ≤ 3 μg
Endeavour Stand		Manifold: 316 stainless steel Seals: Viton Tubing: 1/4 inch stainless steel
Water Reservoir		Material: glass 5 L as standard
Organic Vapor Generation and Measurement with Speed of Sound Sensor		High-accuracy digital mass flow controllers for vapor and gas delivery
Speed of Sound Sensor for organic vapors		• Carrier Gas – Dry air or Nitrogen • Partial Pressure range from 0 to 90% • Partial Pressure accuracy from 10 – 70 °C ±1% • 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 • Note: SMS limits the use of organic solvents to 20°C below their boiling points. • Relative Humidity Sensor, Generation, & Measurement
Sensor		• Capacitance probe • Carrier Gas – Dry air or Nitrogen • Water vapor generation range and accuracy: 0% to 98% (±0.5%) RH for 10°C to 45°C 0% to 85% (±1%) RH for 45°C to 70°C • 11-σ confidence level with %RH or P/Po calibration performance based on SMS factory certified methods (Salts Calibrations or equivalent method) • In-line real-time Humidity Probe for Relative Humidity measurements and control with a resolution of 0.1% RH
System Software		Next-generation purpose-built control and evaluation software for the most advanced experimental design and data analysis.
Generation & Measurement		High-accuracy digital mass flow controllers and capacitance probe

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; 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