September 11, 2008 – Sierra Instruments released its Cal=Trak XL Primary Standard Gas Flow Calibrator for high flows up to 500 slpm. Ideal for calibration of gas measuring instruments including mass flow meters and controllers, Cal=Trak XL offers class-leading accuracy of ± 0.25% of reading. The dimensionally-based primary accuracy of the Cal=Trak XL is superior to pressure-based secondary methods and is backed by a rigorous uncertainty analysis.Like all members of Sierra’s Cal=Trak Series, the Cal=Trak XL is a primary standard piston prover that operates with the press of a button--assuring end-users the ultimate in calibration accuracy, convenience, ease-of-use and productivity.
At 24"W x 30"H x 12"D, Cal=Trak XL fits on any laboratory bench replacing large bell provers with one simple, integrated package. It can be used in the manufacture, inspection, validation and recalibration of mass flow controllers, flow meters and many other varieties of flow equipment with flow rates too high for common primary standard devices.In either manual or automatic operation, Sierra’s Cal=Trak XL measures, displays and outputs the flow of gas, either in mass or volumetric units. The menu-driven configuration of the Cal=Trak XL allows end-users to customize the calibrator to fit their changing needs. The single integrated piston chamber of the Cal=Trak XL can measure flows from 5 to 500 slpm, over a 100:1 range!
Used in conjunction with our other Cal=Trak models, a metrology lab can be established capable of calibrating gas flow meters over a very broad range from 5 sccm to 500 slpm for a combined turndown ratio of 10,000:1. Cal=Trak XL arrives complete with Sierra’s Cal=Soft application software. This package downloads the digital output of the calibrator into your PC, storing calibration data in a convenient spreadsheet and allowing Calibration Certificates to be generated automatically.With hundreds of Cal=Trak installations spread across the globe, we have found that most technicians can perform calibrations using Cal=Trak with minimal training, so expensive calibration training is never required.
The Cal=Trak XL is well-suited for applications in many fields where higher flows rates of gas are becoming common: metrology, semiconductor, analytical, medical, pharmaceutical and quality control among others.Sierra's Cal=Trak Family of Products provides primary NIST traceability, is manufactured under strict ISO 17025 certification, and is CE approved.
ABOUT SIERRA
Sierra is one of the most trusted manufacturers of high performance flow meters and controllers today. By combining superior product quality with a talented global support network of flow experts in 47 countries, Sierra consistently delivers quality flow measurement solutions for each customer.Our Thermal Mass, Transit-Time Ultrasonic, Vortex Shedding and Multivariable instruments are available in both standard and customized versions for applications in laboratory, industrial and hazardous environments. Sierra’s flow measurement technologies precisely measure or control very low flows of gas down to less than 1 sccm full scale as well as extremely high flows of gas, liquid, and steam.
With rugged product design, cutting-edge innovation, and a worldwide team of flow experts, experience why customers around the globe rely on Sierra.

