GAS-CAL Calibration Systems

Inc. * *Phone: (317) 328-8492 Fax: (317) 328-2686 www.atcinc.net

GAS-CAL Portable Gas Flow CalibratorCombined Technology for Precision Gas Flow Calibration

The GAS-CAL instrument has a built-in pressure standard with a PC-based interface with Venturi Nozzles and the IGFS. The GAS-CAL gas flow calibrator uses multiple technologies for precision gas flow testing, calibration, and analysis in the field, on the shop floor, or in the lab.

OPTIONS OFFERED:STAND ALONE STANDARDSorCOMPLETE GAS-CAL SYSTEM built to meet your specific requirements.

Handheld IGFS

GAS-CAL Instrument with Built-in Pressure Standard

Flow Standards:Venturi Nozzle & Intelligent Gas Flow Sensor

GAS-CAL Gas Flow Calibration System for Hazardous Gases

GAS-CAL Features:

+ Rugged, PC-based mobile gas flow meter calibrator

+ Up to 6 calibrated flow standards.

+ Uncertainty as low as +/- 0.25% of reading

+ GAS-CAL Instrument with GAS-CAL Program and Pressure Standard

+ Automatic compensation for gas temperature, pressure, viscosity, compressibility, and specific gravity for high accuracy

+ Supports gas flow ranging from 3 cc/min to 50,000 LPM

+ Helps you meet ISO 17025, MIL. STD. 45662A, FDA/GMP, and ANSI/NCSL Z540-1 calibration requirements

GAS-CAL Portable Gas Flow Calibrator

GAS-CAL Calibration Systems

The COMPLETE Solution For Your Most Challenging Automatic Leak Flow Testing

Two Technologies Used:

CRITICAL VENTURI NOZZLES with GAS-CAL INSTRUMENT - for medium to high flow rates, +/- 0.25% uncertainty.

ATC’s LAMINAR FLOW - for micro to medium flow rates, +/- 0.5% uncertainty.

PC & data acquisition enclosure, hazardous environment design

UUT, electrical output connector

Workbench with vise

Spill proof keyboard

Auxiliary inlet

Flow control fine

Inlet

Flow control, coarse

Isolation valve

Medium flow range, critical flow venturi nozzle

Polished stainless steel cart

Outlet to unit under test

Pressure standard valvemanifold, IGFS flow std.

Flow manifold with multiple flow standards thermally insulated

High flow range, critical flow venturi nozzle

GAS-CAL Calibration System

©GAS-CAL Software

Version 1.2

Gas ConfigurationThe GAS-CAL is capable of supporting a variety of gases, and each flow standard is calibrated with a specific gas. The GAS-CAL software supports the storage and retrieval of different gas properties including temperature, compressibility, viscosity, critical flow, and universal gas constants.

Unit Under Test (UUT) ConfigurationThe GAS-CAL software provides for the storage and retrieval of information on each gas flow metering device in your facility. This includes UUT ID, units of measurement, type, manufacturer, model, pre-configured test points, previous calibration dates, previous calibration data, and other pertinent information necessary to maintain proper records.

UUT CalibrationOnce the operator has entered or selected the UUT to be calibrated, the main calibration screen will be available to review or enter new calibration data. Each calibration screen supports up to 32 flow calibration points. These points are used to accurately map each flow device across the desired range of flow rates. User friendly Windows based software literally prompts the operator through each calibration sequence. Once the flow trend and variation readouts reach stability, the flow rate is electronically captured.

Flow StandardsThe GAS-CAL can support up to 6 flow standards, which are used to evaluate the UUT. Each flow standard covers a different range of flow values, providing effective coverage across the total flow calibration range of the GAS-CAL. However, at calibration time, only one flow standard is used to capture the steady state flow. This feature allows for the maximum possible accuracy available from the GAS-CAL.

Automatic Error CompensationAs can be expected, test gases and other system components can actually add undesirable variables to an otherwise accurate calibration. Because these physical characteristics exist, the GAS-CAL software automatically compensates for changes in gas temperature, pressure, viscosity, compressibility, and specific gravity.

Reports and AnalysisStandard reports include both on-screen and printed graphical analysis and tabulated data, including calibration data, % error vs. actual flow, and linearity analysis. In addition, all of this data is stored ready for import into other analysis packages, such as spreadsheets and databases.

Calibration Chart Screen

Analysis Screen

Inc. * *Phone: (317) 328-8492 Fax: (317) 328-2686 www.atcinc.net

Run Screen

FLO-CAL SOFTWARE

GAS FLOW MEASUREMENT:

Maximum Flow Capacity of System: 50,000 LPMFlow Standards Configuration:

+ Up to 6 calibrated flow measurement standards

+ Low flow standards are accelerated laminar flow (ALF) (See Flow Sensor specification sheets.) Critical venturi nozzles for high range up to 50,000 LPM

+ Selectable flow units of mass and volumetric measure: cc/min, LPM, L/hr, GPM, cubic meters/hours, g/sec, kg/min, lb/min, kg/hr, and lb/hr

Overall Uncertainty:

+ +/- 0.25% of reading Calibrated Range (Critical Venturi) or +/- 0.5% of reading, Calibrated Range (IGFS Sensors)

Over Flow Range Condition:

+ Should gas flow through the system exceed the maximum flow rate, the operator will be prompted to take appropriate action

Maximum Working Pressure:

+ 500 PSIG or pressure sensor range whichever is the lesser.

Gas Media:

+ Multiple non-corrosive gasses are supported, typically air, nitrogen, CO2, natural gas, hydrogen (consult ATC for other gasses).

Pressure Measurement:For critical venturi nozzles:

+ Digiquartz type pressure standard

+ Located upstream to nozzle

+ Uncertainty: +/- 0.01% FS

For IGFS:

+ Silicon piezoresistive type pressure sensor

+ Uncertainty: +/- 0.1% FS

+ All pressure measurements are temperature compensated

Temperature Measurement:

+ 100 Ohm platinum element RTD probe

+ Uncertainty +/- 0.3 °C

Environment:

+ Temperature: 0 to 50 °C, operating

+ 25 to 85 °C storage

Relative Humidity:

+ 95% non-condensing

Critical Venturi Nozzle Design:

+ Stainless steel toroidal throat nozzles per ASME/ANSI MFC-7M, polished at throat and critical flow area, with inlet flow straightener and outlet pressure recovery diffuser.

System Calibration:

+ Each unit is supplied complete with calibration certificates traceable to the National Institute of Standards and Technology (NIST) and uncertainty analysis.

* All measurement uncertainties are per ANSI/NCSL Z540-2-1997 and ISO 17025-2000.

GAS-CAL Calibration System

GAS-CAL System Specifications

The IGLS, IGFS, IMFS, Mass Extraction Technology, Gas-Cal © Program, and Flo-Cal © Program are proprietary products belonging to Advanced Test Concepts (ATC), Inc. and are protected by existing patents (5,861,546; 6,308,556B1; 6,584,828B2; 6,854,318B2; 7,231,811) as well as other US and International patents pending.

The Gas-Cal © Program & Flo-Cal © Program are protected by international copyright laws.© 1995-2006 ATC, Inc. All rights reserved.

The COMPLETE Solution For Your Most Challenging Automatic Leak Flow Testing