eravap is the preferred instrument for vapor pressure testing of gasoline, crude oil, LPG, solvents, perfumes, or aqueous solutions in full accordance with the most recent international standards, thanks to its unrivaled precision, speed, and versatility. eravap provides even more with its ultra-light temperature-controlled U-tube density meter module DENS4052 (patented), which allows for the simultaneous measurement of vapor pressure and density in a single, portable analyzer.
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Image Credit: eralytics GmbH
Standards
- ASTM D4052
- ASTM D5188
- ASTM D5191
- ASTM D6377
- ASTM D6378
- ASTM D6897
- EN 13016-1
- EN 13016-2
- EN 13016-3
- GOST 52340
- IP 394
- IP 409
- IP 481
- ISO 12185
- JIS K2258-2
- SHT 0769
- SHT 0794
- SN/T 2932
Correlations
- ASTM D323
- ASTM D1267
- ASTM D2533
- ASTM D2879
- ASTM D4953
- ASTM D5190
- ASTM D5482
Unmatched Performance
Image Credit: eralytics GmbH
eravap is a vapor pressure tester that is compact, highly precise, and easy to use. It is well-known for providing unrivaled precision, speed, and versatilty in vapor pressure testing across the market's broadest temperature range of -20 °C to 120 °C (4 °F to 248 °F).
It is the best option for both stationary and mobile labs due to its tiny size and true portability, even with a 10-position autosampler attached.
ERAVAP 2-in-1: Simultaneous Measurement of VAPOR PRESSURE + DENSITY with a Single, Portable Analyzer
Image Credit: eralytics GmbH
The optional integration with the temperature-controlled U-tube density meter module DENS4052 from eralytics is a revolutionary development for eravap.
The density measurements provided by this innovative integrated ultra-light (less than 1 kg!) density meter module fully complies with ASTM D4052 and ISO 12185 (r = 0.00001 g/cm3).
eravap is currently the only vapor pressure tester available that enables the simultaneous measurement of two parameters in a single analyzer that are listed in international fuel specifications such as ASTM D4814 and EN 228. These parameters are the density of gasoline, diesel, or jet fuel according to ASTM D4052 and the vapor pressure of gasoline according to ASTM D5191. eravap is the ideal choice for field use, mobile labs, and terminals due to its robust and portable design.
Unique X-Oscillating Metal U-Tube Design
eralytics' unique X-oscillating metal U-tube design
Video Credit: eralytics GmbH
The DENS4052 optional density meter module, which is constructed from the unique metal Hastelloy, is based on a novel X-oscillating U-tube in which only the U-tube's straight tubes vibrate in the direction of one another. Traditional glass U-tube density meters, which oscillate in the Y-mode and require a large counterweight, are more sensitive to external shocks and vibrations than eralytics x-oscillating U-tubes.
The unique X-oscillating metal U-tube design from eralytics is extremely resilient to shocks and vibrations, which makes it ideal for measuring a wide variety of sample types even under the most extreme circumstances, such as in the field.
Low Vapor Pressure Module
Image Credit: eralytics GmbH
The optional eralytics LowVP Module (r<0.1 kPa) makes it easy to measure low vapor pressure materials, such as chemicals or solvents, for material safety data sheets (MSDS) or other official laws (like REACH). This technique, which is based on the triple expansion method ASTM D6378, has a good correlation to the well-known but labor-intensive isoteniscope method ASTM D2879 since it uses eravap’s integrated high-performance shaker to guarantee perfect thermodynamic equilibrium at each expansion phase.
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Maximum Precision and Accuracy
Image Credit: eralytics GmbH
Vapor pressure testing is now more repeatable and reproducible due to recent advancements in eravap design. It performs noticeably better than the precision declarations of its own ASTM standards, with a repeatability of just r ≤ 0.15 kPa and a reproducibility of R ≤ 0.50 kPa for ASTM D5191 and D6378 reference materials at 37.8 °C (100 °F). Additionally, any operator bias caused by improper sample preparation required specifically for ASTM D5191 is eliminated when vapor pressure testing is done using ASTM D6378 rather than D5191.
For the most recent repeatability measurements of the eravap generation utilizing cyclopentane and pentane at 37.8°C (100 °F), please refer to the graph.
Image Credit: eralytics GmbH
Option: 10-Position Autosampler for High Sample Throughput
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eralytics' 10-position autosampler is an optional device for the eravap vapor pressure tester. The 10-position autosampler is directly attached to the instrument, allowing it to connect up to ten samples at once. It is the ideal choice for better sample throughput and increased efficiency. All instruments remain portable, even with the 10-position autosampler connected.
High Viscosity Module
With its default configuration, Eravap already covers a lot of applications. However, drawing the samples into the measuring cell becomes increasingly challenging as their viscosity rises. Heating the sample before introducing it helps in these situations. The samples in the tubes will cool down throughout the measurement, which could cause them to become blocked afterward.
All of the transfer tubes, including the inlet and outlet, are heated to 70 °C by the high viscosity extension of eravap. Through the instrument's measuring menu, the temperature is controlled to a predetermined setting. By using this module, eravap's applicability to a wider range of samples is further expanded.
eravap Feature Video
ERAVAP – Vapor Pressure Testing at its Best
Video Credit: eralytics GmbH
- Unrivaled precision, speed, adaptability, and temperature range
- Temperature range from -20 °C to 120 °C (-4 °F to 248 °F)
- Numerous international standards and correlation techniques are at one's disposal
- By using Pure Sampling™ valve technology, cross-contamination is reduced.
- On-screen quality control mode
- Easy measurement of gasoline, crude oil, LPG, and solvents
eravap Operation Video
This video provides an overview of eravap's typical operation, including installation, measurement, and some extended measuring options.
ERAVAP Operation Video
Video Credit: eralytics GmbH
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Technical Specifications
Source: eralytics GmbH
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| Available Test Methods |
ASTM D4052, D5188, D5191, D6299 (QC charts), D6377, D6378, D6897, EN13016-1, EN13016-2, EN13016-3, IP394, IP409, IP481, JIS K2258-2, SHT 0769, SHT 0794, SN/T 2932, GOST 52340; freely programmable methods; EPA / CARB reference methods, US D.O.T, RCRA, NAVY, NATO approved, TVP measurement VP-V/L Speed TestTM – Combined T(V/L) and vapor pressure measurement |
| Correlation to… |
ASTM D323, ASTM D1267, ASTM D2533, ASTM D4953, ASTM D5190, ASTM D5482, ASTM D2879 (optional low vapor pressure extension) |
| Fuel Specifications |
ASTM D910, ASTM D1655, ASTM D1835, ASTM D4814, ASTM D6227; EN 228 |
| Temperature Range |
0 °C to 120 °C (32 °F to 248 °F) with Peltier technology. No external cooling is required.
-20 °C to 120 °C (-4 °F to 248 °F) with an additional low-temperature upgrade (EV01-COOL).
External cooling is required.
Extrapolated range: -100 °C to 300 °C (-148 °F to 572 °F) |
| Temperature Stability |
0.01 °C (0.02 °F) |
| Pressure Range |
0 kPa to 1 000 kPa (0 psi to 145 psi) |
| Pressure Units (selectable) |
hPa, kPa, psi, mmHg, Torr, at, atm |
| Pressure Resolution |
0.01 kPa (0.0014 psi) |
| Vapor / Liquid Ratio |
Variable from 0.02/1 to 100/1 (Method dependend) |
| Precision |
Repeatability:
r ≤ 0.10 kPa (0.015 psi) / n-Pentane at 20 °C (ASTM D6378)
r ≤ 0.15 kPa (0.022 psi) / Cyclopentane at 37.8 °C (ASTM D6378)
Reproducibility:
R ≤ 0.20 kPa (0.029 psi) / n-Pentane at 20 °C (ASTM D6378)
R ≤ 0.50 kPa (0.073 psi) / Cyclopentane at 37.8 °C (ASTM D6378) |
| QC Mode |
Built-in quality control mode, including on-screen QC charts (ASTM D6299) |
| Internal Density Meter Module (Option) |
Density Accuracy: 0.00005 g/cm³
Density Repeatability: 0.00001 g/cm³
Density Resolution: 0.00001 g/cm³
Density Range: 0 – 3 g/cm³
Density Temperature Range: 10 °C to 40 °C (50 °F to 104 °F)
Temperature Accuracy: 0.02 °C (0.04 °F)
Oscillating Tube: Hastelloy (Patent: US 11,630,044)
Bubble Detection: FillingProofTM – automated bubble detection and bubble quantification (Patent: US 11,493,417 B2)
Full range viscosity correction (Patent: AT523471 A1)
Weight: 1.0 kg (2.2 lb) additional to ERAVAP
The module is suitable for liquids with a boiling point above atmospheric conditions. |
| Available Extension Modules |
EV01-COOL: Low-temperature module (-20 °C to 120 °C / -4 °F to 248 °F)
EV01-VISC: High viscosity module (Heated inlet and outlet up to 70 °C / 158 °F)
EV01-VPL: Low vapor pressure module (r = 0.1 kPa; pressure resolution = 0.01 kPa) |
| Sample Introduction |
Automated via built-in piston
Automated sample filtration through a reuseable 80 µm mesh filter
No external vacuum pump is required |
| Sample Volume |
1 mL (2.2 mL per rinsing cycle) |
| Measurement Time |
5 minutes for a standard measurement |
| Cleaning |
By next sample or solvent |
| Measuring Chamber |
Nickel-plated aluminum chamber |
| Display |
Industry-proven multilingual 8.4” color touchscreen |
| Languages |
English, German, French, Spanish, Russian, Chinese
Additional languages available upon request |
| Interfaces |
Built-in PC with Ethernet, USB and RS232 interfaces
Wifi via external USB dongle
Direct LIMS connectivity via LAN, output to printer or PC as CSV or PDF
Optional input by external keyboard, mouse and barcode reader |
| Remote Control |
Remote service capability via Ethernet interface |
| PC Software |
erasoft RCS – remote control Windows® software for multi-instrument remote control, convenient data transfer, viewing spectra and result analysis |
| Result Database |
Over 100,000 detailed test reports stored in internal memory
DVPE, RVPE, PABS, PGAS, PTOT, ASVP & AVP
Results can be marked for hazy appearance
Graphical view of curve measurements |
| Alarm Tracking |
All alarm messages are stored in the database together with the result |
| Automated Calibration Routine |
10-point probe offset correction table, calibration history tracking, substance calibration |
| Autosampler |
Optional 10-position autosampler – directly attached |
| Operating Conditions |
Temperature range 0 °C to 50 °C
Humidity up to 90% RH, non-condensing |
| Power Requirements |
Auto-switching 85-264 V AC, 47-63 Hz, max. 150 W (multi-voltage power supply)
Field application: 12 V DC (vehicle battery) adapter available |
| Model Number |
EV10 |
| Dimensions & Weight |
(W x D x H) = 29.1 x 32.9 x 34.8 cm (11.5 x 12.9 x 13.7 in) / 9.1 kg (20.1 lb) |