image
View Details
Back Validation System Home
  • Home
  • Validation System

1. Gas Chromatograph Analysis Software (GCAS)

What is GCAS ?
A unique and comprehensive Condition Based Monitoring (CBM) software package for Gas Chromatograph (GCs), providing patented live uncertainty calculations based on routine gas calibrations.

As an automated condition based monitoring software GCAS:

  • Provides real time assurance that the GC is operating correctly
  • Analysis historical data to identify changes and predict future failures
  • Reduces the need for conventional maintenance and unnecessary costs
  • Determines dynamic GC uncertainty for quantification of GC performance
  • Validates that the pressure let down system provides a representative sample
  • Create a fully auditable database of GC performance
  • Helps to support and increase a technician's competence level

2. Prognosis

Prognosis is the only comprehensive DP meter diagnostic system available. Prognosis is capable of real-time diagnostics and is extremely powerful in assuring good flow measurement and detecting issues with any standard DP Meter. Prognosis can be used as a basis for a Condition Based Maintenance strategy as encouraged by regulatory bodies world-wide.

Prognosis is a DP meter diagnostic and Condition Based Monitoring (CBM) system, providing assurance of meter system accuracy and real time alerts to meter system malfunctions. Prognosis can be used as a basis for a Condition Based Maintenance strategy as encouraged by DECC.

Prognosis can considerably help in reducing maintenance costs, improving fault detection and detecting mismeasurements as soon as they occur.

The Prognosis User Interface is designed to be easy to use and intuitive. Prognosis can be run and displayed with no login required.

View Details
Back GCAS Home

Gas Chromatograph Analysis Software (GCAS)

GCAS is a unique condition based monitoring (CBM) software package for Gas Chromatographs. The only package which provides (patented) live uncertainty calculations based on routine gas calibrations and Confirms GC measurement accuracy by identifying performance errors. As an automated condition based monitoring software GCAS Detects Problems in: The GC e.g.

Cal Gas correctness
  • Leakage
  • Column Deterioration
  • Valve Timing
  • Poor handling procedure
Pressure Let-Down System e.g.
  • Heavy end drops out
    (using spot sample comparison)
Maintenance Procedure e.g.
  • Fault in repeatability test interpretation
  • Fault in control chart interpretation
  • Fault in comparison of composition
How Does It Works ?

When GCAS is first installed it takes an accurate 'footprint' of your GC to use as a healthy set of reference conditions. Existing issues would be detected during this initial installation process.

Once the 'footprint' is set up GCAS will monitor calibration gas analysis data (Ideally via Modbus) to confirm accurate and error free performance. GCAS can analyze the GC calibration data automatically with no manual intervention required by the onsite technician.

GCAS captures response factor and retention time data following each calibration and plots correlation charts to illustrate the GCs currents performance. All Calibration data is historically stored and this can be referred to by the technician, operator and regulator for auditing and validation purposes.

GCAS can be installed by the end user and doesn't require you to call out a GC specialist. GCAS is a windows application and is therefore compatible with most standard desktop and laptop PCs.

GCAS Determines:
  • Stability of the GC from its reproducibility
  • Uncertainty of the GC from reproducibility, calibration gas and (if multi-level calibration data available) linearity and repeatability
  • How stable the gas is from monitoring of mole%?
  • Closeness of calibration gas to process gas PLUS the best calibration gas composition for your process gas
  • Any fault in procedure or genuine error or drift in GC
  • Repeatability and reproducibility changes from the 'healthy' GC state
GCAS Provides:
  • Better understanding of GC performance
  • Higher confidence of the GC and analyzer system
  • Instant and ongoing error detection
  • Early failure detection based on uncertainty values
  • Easy to interpret
View Details
Back PROGNOSIS Home

Prognosis

Prognosis is the world's first and only diagnostics system for Differential Pressure Meters. The patented technology, proven to be extremely powerful both in theory and in practice, has been adopted by Operators world-wide. Prognosis provides real-time monitoring of meter performance and assurance of meter accuracy as well as instant alerts of meter performance shift and mismeasurement.

  • By reading three Differential Pressures across the meter body, the self-diagnostic capabilities of any DP meter are realized
  • The Prognosis system uses the three DP measurements as well as other process conditions and meter geometry to monitor the meter's performance in real time
  • The diagnostic results are represented as 4 points and a box. If the points remain inside the box, this ensures good flow measurement. If any of the points are outside of the box, there is reason to suspect a problem with the meter performance and an error in the reported flow rate prediction
  • The Prognosis system will automatically indicate the NATURE of an issue based on the diagnostic response; in particular, a secondary DP instrumentation issue is distinguished from a primary meter body based physical problem
SAFETY BENEFITS
 

By utilizing Prognosis, Operators may adopt a condition based maintenance strategy; only inspecting a meter or verifying DP measurement when Prognosis indicates a problem

 

As such Operators are already realizing the following safety benefits:

  • Less risk of breaking of hydrocarbon containment
  • Avoidance of maintenance induced errors or accidents
  • Reduced trips to remote and hazardous locations
  • Avoid the risk of miss-interpreting data
  • Improved confidence on the measurement and performance of the meter

Prognosis is an extremely powerful Condition Based Monitoring (CBM) tool that can be applied to any DP meter including Orifice, Venturi, Cone, Pitot Tubes, Flow Nozzles, Wedge meters measuring single phase liquid, single phase gas or wet gas flows.

© 2017 EXIMP. All rights reserved.