Thermal Mass Flow Calibration - Laboratory capabilities 2 sccm to 100 slpm as low as +/- 0.2% @ 1500 psi for Nitrogen & Helium

NVLAP accredited calibrations:
2 sccm to 30 slpm at 0.4% for Nitrogen
> 30 slpm to 100 slpm at 1.5% for Nitrogen

Troemner's Thermal Mass Flow Meter / Flow Controller Calibration Program was developed to meet the most demanding requirements of precision gas thermal mass flow calibration and repair. Troemner can also calibrate and service variable volume meters (rotameters). The Thermal Mass Flow Calibration Laboratory is ISO/IEC 17025 compliant.

 
Thermal Mass Flow Calibration Services QuickLINKS:
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Facility and Environment

Environmental conditions in the Thermal Mass Flow Calibration Laboratory are strictly monitored and controlled. Our calibration process employs a laminar gas flow calibration method providing unprecedented levels of stability and precision by applying the most advanced data acquisition and processing technologies available today. Laboratory mass flow measurement accuracy is as low as +/- 0.2% of reading from 2 sccm to 100 slpm @ 1500 psi inlet pressure for Nitrogen and Helium (up to 240 slpm at 1,500 psi inlet pressure for Hydrogen). Information is available for larger flow rates. All measurements are traceable to NIST.

 
Staff

Troemner's metrologists and technicians are thoroughly trained and authorized by a market-leading manufacturer of gas mass flow meters and flow controllers. Troemner's Thermal Mass Flow technicians are trained by several manufacturers and can repair and calibrate most brands of gas mass flow meter/flow controllers.

 
Processes

Troemner offers standard and custom calibration services. Gasses used for calibration include Nitrogen, Hydrogen, Argon and Helium. Service and repair options include pressure testing, replacement of seals and resizing flow rates. Oxygen cleaning is available.

 
Thermal Mass Flow Calibration Services Include:

• A flow measurement accuracy as low as +/- 0.2% of reading from 2 sccm to 100 slpm @ 1500 psi for Nitrogen & Helium (up to 240 slpm at 1,500 psi inlet pressure for Hydrogen). Information available for larger flow rates
• Oxygen cleaning is available
• Services include: repair, resizing and calibration services for a wide variety of types and brands of gas mass flow meters and flow controllers
• Our flow personnel are factory trained and authorized by a market-leading manufacturer of gas mass flow meters and flow controllers
• ISO/IEC 17025 compliant laboratory
• Fast turnaround time

 
Troemner offers 3 levels of Flow Calibration Service.

Troemner offers three standard levels of service, as well as custom services are available. Below is a description of the Flow services available from Troemner:

Level 1 Flow Calibration Service – Troemner's most complete service, designed to meet all of your stringent requirements including: GLP, GMP, FDA, ISO, NCCLS, and CLIA. Service includes:

• Convenient single fee covers flow calibration, labor and most repair parts - circuit boards and sensors are additional for some makes/models.
• Visual inspection upon arrival for signs of damage and/or wear (labor to return the meter/controller to the manufacturer's published specifications will be provided at no additional charge).
• "As Found" 7 point mass flow calibration data is collected.
• The instrument is disassembled and cleaned.
• All process seals and O-rings are replaced with like parts (e.g., Buna, Viton).
• Restrictor and orifice are replaced (if re-ranging or changing gases).
• Unit is reassembled, pressure tested and helium leak tested to manufacturer's specifications.
• "As Left" 7 point mass flow calibration is performed.
• A NIST traceable certificate ISO/IEC 17025 compliant calibration certificate is provided containing both tabular and plotted accuracy versus flow data.
• A calibration sticker is affixed to the instrument that specifies the date of calibration.

Level 1 Flow Calibration As Found Certificate Sample
Level 1 Flow Calibration As Left Certificate Sample

Level 2 Flow Calibration Service – designed for resizing and re-ranging gas mass flow meters and flow controllers that may not require the extensive measurements, calibration and repair provided by the Level 1. Service includes the following:

• Visual inspection upon arrival for signs of damage and/or wear. (If the flow meter is determined to be inoperative or malfunctioning, the cost of the repair and any necessary parts will be determined and a Troemner representative will contact you for approval to either proceed or to return the unit in its "As Found" condition.)
• "As Found" 7 point mass flow calibration is performed.
• Restrictor and orifice are replaced (if re-ranging or changing gases).
• Unit is reassembled, helium leak and pressure tested to manufacturer's specifications.
• "As Left" 7 point mass flow calibration is performed.
• A NIST traceable ISO/IEC 17025 compliant calibration certificate that contains both tabular and plotted data for accuracy versus flow is generated.
• A calibration sticker is affixed to the instrument that specifies the date of mass flow calibration.

Level 3 Flow Calibration Service – designed for companies who require a third party validation of "As Found" data only. This service includes:

• Visual inspection upon arrival for signs of damage and/or wear. (If the flow meter is determined to be inoperative or malfunctioning, the cost of the repair and any necessary parts will be determined and a Troemner representative will contact you for approval to either proceed or to return the unit in its "As Found" condition.)
• Unit is helium leak tested.
• "As Found" 7 point mass flow calibration data is collected.
• A NIST traceable ISO/IEC 17025 compliant calibration certificate that contains both tabular and plotted data for accuracy versus flow is generated.
• A validation sticker is affixed to the instrument that specifies the date of verification.