The Sage Model 51 is a precision thermal mass flow meter engineered for accurate measurement of natural gas, biogas, compressed air, and other industrial gases. NIST-traceable calibration and proven thermal dispersion technology make it an ideal solution for utility billing, emissions monitoring, combustion control, and process flow applications where reliable mass flow data is critical. Measuring true mass flow directly—without the need for separate temperature and pressure correction—the Sage Model 51 delivers excellent low-flow sensitivity, wide turndown, and minimal pressure drop. Its rugged construction, insertion or inline configurations, and clear digital display make installation and ongoing monitoring straightforward across pipes and ducts of many sizes. Key Features Thermal mass flow technology for direct, accurate gas mass measurement NIST-traceable calibration for confidence in billing and compliance Wide turndown and low-flow sensitivity with minimal pressure drop Insertion or inline configurations for flexible installation Clear digital display for straightforward on-site monitoring Applications Utility natural gas billing and submetering requiring NIST-traceable accuracy Emissions monitoring and regulatory compliance reporting Combustion control and process flow measurement in industrial gas systems Biogas and compressed air flow measurement alongside natural gas applications Frequently Asked Questions What gases can the Sage Model 51 measure?Natural gas, biogas, compressed air, and other industrial gases. Does it need separate temperature/pressure correction?No, it measures true mass flow directly without needing separate correction. What installation configurations are available?Insertion or inline configurations to fit pipes and ducts of many sizes. Is it NIST-traceable?Yes, it ships with NIST-traceable calibration for billing and compliance confidence. What does it cost?It's listed at $3,500.00; contact us or request a quote for current availability.
Sage Metering
Sage Model 51 Natural Gas Flow Meter | Thermal Mass | NIST-Calibrated
$3,500.00
In stock
Overview
Specifications & Details
Full product specifications and supporting documentation.
The Sage Model 51 is a precision thermal mass flow meter engineered for accurate measurement of natural gas, biogas, compressed air, and other industrial gases. NIST-traceable calibration and proven thermal dispersion technology make it an ideal solution for utility billing, emissions monitoring, combustion control, and process flow applications where reliable mass flow data is critical.
Measuring true mass flow directly—without the need for separate temperature and pressure correction—the Sage Model 51 delivers excellent low-flow sensitivity, wide turndown, and minimal pressure drop. Its rugged construction, insertion or inline configurations, and clear digital display make installation and ongoing monitoring straightforward across pipes and ducts of many sizes.
Key Features
- Thermal mass flow technology for direct, accurate gas mass measurement
- NIST-traceable calibration for confidence in billing and compliance
- Wide turndown and low-flow sensitivity with minimal pressure drop
- Insertion or inline configurations for flexible installation
- Clear digital display for straightforward on-site monitoring
Applications
- Utility natural gas billing and submetering requiring NIST-traceable accuracy
- Emissions monitoring and regulatory compliance reporting
- Combustion control and process flow measurement in industrial gas systems
- Biogas and compressed air flow measurement alongside natural gas applications
Frequently Asked Questions
What gases can the Sage Model 51 measure?
Natural gas, biogas, compressed air, and other industrial gases.
Does it need separate temperature/pressure correction?
No, it measures true mass flow directly without needing separate correction.
What installation configurations are available?
Insertion or inline configurations to fit pipes and ducts of many sizes.
Is it NIST-traceable?
Yes, it ships with NIST-traceable calibration for billing and compliance confidence.
What does it cost?
It's listed at $3,500.00; contact us or request a quote for current availability.
Ready to put energy data to work?
Order sensors, bridges, and PowerRadar subscriptions from our store — or talk to a CEM-certified engineer about your project.