Eravap Online

The Piston-based

Measurement Principle

With this leading-edge measurement principle vapor pressure testing in laboratories made a huge step forward. The built-in piston renders a vacuum pump obsolete and simplifies the measurement. Years of experience in building such laboratory instruments resulted in a ruggedized measurement design now used in ERAVAP ONLINE and measuring in full accordance with latest vapor pressure standards.

Highest Durability 

Eralytics took the heart of its laboratory vapor pressure tester and enhanced it for even higher durability needed for 24/7 operation. This includes maintenance-free, self-lubricating gears and the continuously monitored lubrication of the piston.

Ex-proof housings according to UL Class 1 Division 1 and ATEX/IECEx Zone 1 are available, meeting all requirements of hazardous environments.

Lab-grade Performance

Since ERAVAP ONLINE is measuring according to the latest vapor pressure standards and its measurement cell is based on eralytics’ laboratory systems, results from ERAVAP ONLINE are identical to laboratory results. There is no need for correlating results in any way. It clearly outperforms the standard methods in terms of repeatability (r = 0.15 kPa) and reproducibility (R = 0.5 kPa).

1. sample
2. inlet valve
3. manifold
4. outlet valve
5. waste container
6. measuring cell
7. liquid phase
8. gas phase
9. piston with pressure sensor
10. temperature sensor

Minimized Downtime

A spare measurement cell delivered with ERAVAP ONLINE minimizes downtimes during calibration or maintenance. While one measurement cell is calibrated and maintained in a safe area, the second one is used for the measurements. They can be swapped in a few simple steps in less than a minute. No tools are required. Measurement cells can be used in any ERAVAP ONLINE analyzer as all necessary operating parameters are stored directly on the cell and read by the main unit when connected

Comprehensive Connectivity

ERAVAP ONLINE offers a wide variety of options to transfer data to a process control system. Modbus communication is possible using its integrated Ethernet or optional RS232 / RS485 connections. Four analog outputs (4 mA–20 mA) can be configured freely to monitor different measurement parameters. Four digital outputs communicate errors and warnings. The main operating steps can be triggered using four digital input ports. In ERAVAP ONLINE’s standard operating mode it autonomously measures and sends results over the chosen output channels.

ERAVAP ONLINE has four fluid inlet streams that can be configured to be used as sample streams, quality control streams or as cleaning streams for crude oil applications. All settings are easy to configure on the ex-proof touchscreen during installation. Configuration of an online analyzer never was easier.

Applications

Quality control measurements at terminals or refineries belong to ERAVAP ONLINE’s standard repertoire. With its multi-stream capabilities ERAVAP ONLINE is the ideal tool for blending applications. It can monitor both inlet streams and the blended stream within one instrument. Wether it is blending naptha into viscous crude or butane into gasoline, ERAVAP ONLINE is the analyzer of choice.