Unmatched precision, speed and versatility

ASTM, D4052, D5191, D6378, D5188

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2-in-1: Simultaneous Measurement of VAPOR PRESSURE DENSITY with a Single, Portable Analyzer

The latest ground-breaking innovation for ERAVAP is the optional combination with eralytics new temperature-controlled U-tube portable density meter module DENS4052. This integrated ultra-light (< 1 kg!) density meter module (patent pending) offers density measurements in full compliance with ASTM D4052 & ISO 12185 (r = 0.0001 g/cm3).

ERAVAP is now the only vapor pressure tester on the market which allows for simultaneous measurements of two parameters listed in international fuel specifications like ASTM D4814 and EN 228 in a single analyzer, namely the vapor pressure of gasoline according to ASTM D5191 and the density of gasoline, diesel or jet fuel according to ASTM D4052. Its portable and rugged design makes ERAVAP the perfect solution for mobile laboratories, terminals, and field use.


features__astm compliantERAVAP is fully compliant with ASTM D1267, ASTM D323, ASTM D4814, ASTM D4953, ASTM D5188, ASTM D5190, ASTM D5191, ASTM D6377, ASTM D6378, ASTM D6897, ASTM D910, providing both standard method and refined methodology.
features__simple operatonAll eralytics analyzers use an intuitive menu structure that is easy to navigate. Samples need no prior preparation and measurements are done fully automated.
A direct out-of-the-box connection to LIMS (Laboratory Information Management System) is established with a standard Ethernet cable.No extra software or PC are necessary.
features__footprintThe small footprint of the eralytics instruments makes them the first choice for use in the lab and on-site.
features__portableThe Eralytics units are all lightweight and built with an integrated carrying handle, they are versatile and ideally suited for mobile applications as well.
features__touch screenAll Eralytics analyzer results are displayed immediately after the test on their large and user-friendly color touch screen.
features__high precisionThe outstanding precision of the ERAVAP is the result of combining the innovative measurement cell design with a choice of cutting-edge instrument parts. Among those count a self-lubricating piston drive, a built-in shaker motor and state-of-the-art solenoid valves that prevent cross contamination between samples. The ERAVAP instrument clearly outperforms the standard methods in terms of repeatability and reproducibility. (r = 0.3 kPa, R = 0.7 kPa).


The following accessories are recommended for purchase in sequential order (see eStore):

1st Year: No spare parts are required
2nd Year: Sampling tube with Luer connector
Sampling tube 0,5m with Luer connector
Teflon o-ring for EV01-A002a Mesh inlet filter 80µ
Outlet tube
Kalrez O-ring for pressure sensor (Kalrez 12.42×1.78)
O-ring small for measuring cell cover (Viton 6×1.5)
Remaining Parts:


Specifications ASTM D910, D4814, D6227, EN 228
Available Test Methods ASTM D5188, D5191, D6377, D6378, D6897
excellent correlation to D323, D4953, D5190, D5482, D1267
EN13016-1 & EN13016-2, IP394, IP409, IP481
JIS K2258-2, SHT 0769, GOST 52340;
customized measuring programs
Vapor-Liquid ratio Variable from 0.02/1 to 100/1, single and multi-point & V/L curve measurements
Temperature range 0°C to 120°C (32 to 248 °F); Peltier technology, no external cooling necessary
Temperature Stability 0.01°C (0.014°F)
Temperature profiles Single temperature, stepped or ramped
Pressure range EV01 ERAVAP: 0 to 1000 kPa (0 to 145 psi) EV02 ERAVAP LPG: 0 to 2000 kPa (0 to 290 psi)
Pressure resolution 0.01 kPa; Accuracy: 0.2 kPa (0.028 psi)
Pressure units (selectable) hPa, kPa, psi, mmHg, bar, mbar, at, atm
Precision Repeatability: r = 0.3 kPa, Reproducibility: R = 0.7 kPa
Sample introduction Automated via built in piston, no external vacuum pump required
Shaker motor Built-in shaker motor for fast crude oil & T(V/L) measurements
D5191 & D5188 Speed test VP & T(V/L=20) measurement of gasoline at the push-of-a-button
Measuring chamber Nickel plated aluminum chamber
Sample volume 1 ml (2.2 ml per rinsing cycle)
Cleaning By next sample or solvent
Display Industry proven 7’’ color touch screen
Remote Control Remote service capability via Ethernet interface
Interfaces Built-in PC with Ethernet, USB and RS232 interfaces; direct LIMS connectivity and output to printer or PC
Auto sampler Optional 10 position auto sampler – directly attached!
Quality-Check tracking Statistical quality assurance & graphical control charting (ASTM D6299)
Result database > 100,000 detailed test reports stored in internal memory: DVPE, RVPE, PABS, PGAS, PTOT, ASVP & AVP, T(V/L), VLI, TVP
Operators Unlimited operator names memorized
Hazy mark Results can be marked for hazy appearance
Sample container size record 100 ml, 250 ml, 1 l
Alarm tracking All messages are stored in the database together with the result
Automated calibration routine 10-point probe offset correction table, calibration history tracking, self-diagnostics
Power requirements Auto switching 85-264 V AC, 47-63 Hz, 100 W (multi-voltage power supply)
Field application: 12 V/9A DC (vehicle battery)
Dimensions / Weight 22 x 32 x 28 cm (8.7 x 12.6 x 11 in) / 8 kg (17.6 lb)


Download our brochure for more details



ASTM D5191 with D4052

AYA-83-22243 Sampling tube (FEP) 0,4m with Luer connector
AYA-82-22237 Mesh inlet filter 80µ (5 pcs, 1 pc inside Sample inlet on instrument)
AYA-82-22084 Outlet tube
AYA-82-22085 Waste container
AYA-82-22086 Power cable

ASTM D6378 with D4052

AYA-83-22243 Sampling tube (FEP) 0,4m with Luer connector
AYA-82-22237 Mesh inlet filter 80µ (5 pcs, 1 pc inside Sample inlet on instrument)
AYA-82-22084 Outlet tube
AYA-82-22085 Waste container
AYA-82-22086 Power cable


ISO OEM 17025 Certified

ISO 17025

Our Service Center has been ISO Accredited for Competence of Calibration.


1-3 Days Service Turn Around


We are please to offer our 1-3-day service turn around from our Ayalytical Service department.


Application Support


We are pleased to offer our expertise in various disciplines including Physical Properties, Elemental and Compositional.


Dedicated Support Lines


We are pleased to offer our On-Site trainings and service calls for our Ayalytical partners.