Measurement and Testing

  • Improvement of repeatability specification for an Axetris mass flow controller with a full scale of 1000sccm FS: Full Scale OR: Of Reading

Repeatability is King: Up to Tenfold Improvement

May 17 2017 Comments 0

Axetris has improved the repeatability specifications of its mass flow meters and controllers. 

Repeatability often more important than absolute accuracy

Repeatability provides information about the precision, that is, the absolute difference between a pair of repeated test results measured by one instrument under unchanged conditions. To measure precision, the same procedures are used under the same environmental conditions, with the same instruments etc. 
Since a specific gas control application often refers to a periodically repeated reference measurement, this value is taken as a basis for calibration. For this reason, many applications, like sample injection in gas chromatography or combustion control in elemental analysis systems, value repeatability over absolute accuracy.

High repeatability values still further improved

Axetris mass flow meters and controllers with the proprietary MEMS-based thermal mass flow technology have delighted OEMs worldwide with their extremely high repeatability values since years, and helped them design high-performance instruments. Now, thanks to a number of design and process improvements, Axetris is happy to announce an improvement in published repeatability specifications. The new repeatability specification means that up to 10 times higher repeatability is guaranteed to Axetris customers (see example: Axetris mass flow controller, FS = 1000sccm).

Read comments0

Do you like or dislike what you have read? Why not post a comment to tell others / the manufacturer and our Editor what you think. To leave comments please complete the form below. Providing the content is approved, your comment will be on screen in less than 24 hours. Leaving comments on product information and articles can assist with future editorial and article content. Post questions, thoughts or simply whether you like the content.


Digital Edition

Petro Industry News October/ November 2017

October 2017

Fuel for Thought - Restek Wins Company of the Year ASTM News - New Standard Helps Meet Need for Hydrocarbon Impurity Testing PEFTEC Preview - Excitement Builds for PEFTEC 2017 - Det...

View all digital editions

Events

PEFTEC 2017

Nov 29 2017 Antwerp, Belgium

Tank Storage Germany

Nov 29 2017 Hamburg, Germany

ASTM - D02 Meeting

Dec 03 2017 Houston, Tx, USA

Saudi International Lab Expo

Dec 04 2017 Riyadh, Saudi Arabia

Iraq Oil & Gas Show

Dec 05 2017 Basra, Iraq

View all events