MINIVAP VP Vision measures gasoline, jet fuel, crude oil, LPG and solvents. The analyzer provides a wide pressure range of 0 - 2000 kPa, without compromising precision. Long-term testing has demonstrated an unmatched repeatability of less than 0.2 kPa. The newly developed Grabner 2D-Correction™ (273 points) and exact piston positioning guarantee that accurate and precise results are received over the full measuring range. MINIVAP VP Vision incorporates Grabner´s Sampling Pro™ valve design, which during ruggedness tests proved to be the best-in- class piston based design for minimizing cross contamination between various sample types.
The MINIVAP VP Vision uniquely combines ease of use with flexibility. A modern, app-like user interface makes it easy to select, start and follow measurements directly on the industry- proven 10” touch screen. With just a few clicks, measuring templates can be created and customized methods can be added. In addition, Grabner´s Cockpit™ PC software offers lab managers the utmost in flexibility. The software combines measurement results from multiple locations.
With the Cockpit™ PC software multiple instruments are automatically recognized and devices all around the world can be configured, monitored, diagnosed, serviced and upgraded from one central lab. The software can be accessed through a secure VPN tunnel, allowing for true mobile access to instruments from any place at any time. A unique call home function facilitates easy uplink to our well trained support team.
The MINIVAP VP Vision is the first vapor pressure tester certified to work in cold, hot and damp heat climate. It has demonstrated an ability to withstand vibrations and heavy shocks coming from any direction. This instrument is ideal for use in mobile laboratories, in military applications or in harsh environments.
MINIVAP VP Vision comes fully configured to run all major vapor pressure methods. Every analyzer incorporates a shaker to provide rapid equilibrium for crude oil and V/L ratio tests.
While the standard VP model is designed to sustain pressures up to 20 bar, some applications require increased measurement sensitivity for samples with a very low volatility. These applications include e.g. the measurement of Diesel, Oils or Flavors & Fragrances. The MINIVAP VPL Vision model is designed for low volatility measurements up to 150 kPa (21.8 psi). It shows a measuring repeatability better than 0.1 kPa for low volatile samples.
The model MINIVAP VPL Vision was developed to automate the manual ASTM D2879 Standard Test Method for Vapor Pressure by Isoteniscope for low volatile samples, which is used by the chemical industry. The instrument incorporates a direct and an extrapolated "VOC" method for absolute vapor pressure measurement of single- and multi-component samples.
The direct "VOC"-method is a static method for determining the absolute vapor pressure required for safety data sheets. The indirect method additionally allows to extrapolate to extremely low pressures or to temperatures that exceed the instruments temperature range (-100°C to +300°C). Both methods yield results comparable to the static ASTM D2879 Isoteniscope method, but do not require sample evacuation prior to testing. Based on the GRABNER Triple Expansion Method, air/gases are removed automatically from the measurement result and the sample composition is maintained during measurements.
"VOC"-methods are available in both the MINIVAP VPL and the VP Vision analyzer. Because of a better sensitivity for low volatile samples, the precision of the VPL Vision is significantly better in the pressure range of 0.1 to 30 kPa.
Grabner´s "Triple Expansion Method" with determination of the dissolved air in the sample. No cooling and air Saturation required!
DVPE Dry Vapor Pressure Equivalent (w/ EPA and CARB correlation formulas) Standard "Mini-Method" measured against vacuum and a correlation formula for the calculation of the DVP. Requires sample preparation, including cooling of the sample to 0°C (32°F) and triple air saturation prior to the measurement.
"Single-Expansion Method" for vapor pressure of Crude Oil developed by GRABNER INSTRUMENTS. Better precision than classical ASTM D323 RVP method, ASTM correlation formula to D323 available. Does not require sample preparation: Saves time, increases precision and eliminates operator bias.
Easy, quick, fully automatic and accurate measurement of liquefied petroleum gas. Replaces the manual bomb method ASTM D1267. ASTM D6897 eliminates manual operation and cleaning and minimizes sample waste. Yields results in excellent correlation with ASTM D1267, but with a highly improved precision.
Determines V/L ratio of non-viscous liquids including hydrocarbons like gasoline, solvents and other highly volatile compounds. Insturment performs fully automatically, providing results in minutes. No additional equipment is required.
Runs ASTM D5188 and D5191 directly after each other.
Static methods for determining the absolute vapor pressure required for safety data sheets. Both methods yield results comparable to the static ASTM D2879 Isoteniscope method, but do not require sample evacuation prior to testing.
No vacuum pump or sample preparation necessary!
Modern, app-like user interface with big buttons; works also with gloves - no stylus required!
Includes license for Grabner Cockpit™ PC software. For automatic instrument recognition, worldwide analyzer uplink and centralised results and statistics management. Enables remote user management and user training, remote device configuration and software update, remote diagnostics, online support and calibration checks.
Crude oil package for MINIVAP VP Vision available. Due to the instrument´s extended pressure range no pressure regulator is required for filling typical pressurized samples! A dedicated Pipeline Package is available for filling pressures >2000 kPa.
The sample is contained in a 10 mL syringe (3) or in a sample container for direct sampling. The automatic sample introduction and the volume adjustments are made by a piston with an integrated pressure transducer (1). The measuring chamber (2) with a total volume of 5 mL is automatically rinsed and filled with 1 mL for the measuring process. After closing the valve (4) driven by the valve motor (5), the volume expansion to 5 mL (with the sample under vacuum condition) is obtained by a further stroke of the piston. The temperature of the measuring cell is controlled with a high-power thermoelectric module (6) and measured with a precision Platinum RTD sensor (7). After the sample introduction and the volume expansion, the test temperature is adjusted. After the equilibrium time, the measurement of the dissolved air is completed. Test results of DVPE, ASVP, Pgas and Pabs are displayed and printed.
Automatic piston lubrication is processed with every piston stroke.