Brand
Sage Metering
Thermal mass flow meters for natural gas, biogas, flare gas, and compressed air — direct-mass measurement without pressure or temperature compensation.
About Sage Metering
Sage Metering builds thermal mass flow meters for natural gas, biogas, digester and landfill gas, flare gas, and compressed air. Thermal mass technology measures mass flow directly, so unlike volumetric meters it does not require separate pressure and temperature transmitters and flow computers to correct the reading — one instrument, one signal, no compensation chain to drift or fail.
That makes Sage meters especially well suited to dirty, wet, or variable-composition gases where volumetric meters struggle, and to low-flow conditions where differential-pressure devices lose turndown. In-situ calibration verification lets a technician confirm accuracy in the field without pulling the meter out of the line.
Emergent Metering applies Sage meters to greenhouse-gas reporting, boiler and process gas submetering, digester and landfill gas measurement for renewable-energy credit programs, and industrial natural-gas cost allocation where the utility provides only a single master meter for the whole site.
Choosing a Sage Prime configuration
| Series | Electronics | Configuration | Accuracy | Best for |
|---|---|---|---|---|
| Sage Prime SIP | Integral — mounted at the probe | In-line or insertion | ±0.5% of full scale plus ±1% of reading | Accessible points where the display is read at the meter |
| Sage Prime SRP | Remote — up to 1000 feet from the probe | In-line or insertion | ±0.5% of full scale plus ±1% of reading | Points that are hot, high, hazardous or hard to reach |
Specifications
- Turndown of 100 to 1, with resolution as much as 1000 to 1
- Repeatability of 0.2%
- NIST traceable calibration
- In-situ calibration verification, with raw calibration milliwatts displayed continuously
- Modbus RS485 RTU standard using IEEE 32-bit floating point; BACnet optional
- Isolated 4–20 mA output plus a pulsed output of totalized flow
- Power draw under 2.5 watts, which is under 100 mA at 24 VDC
- NEMA 4 enclosure, with an explosion-proof junction box available
- No moving parts and negligible pressure drop
- Natural gas, biogas, digester and landfill gas, flare gas and compressed air
Figures from the Sage Prime SIP and SRP datasheet.
Sage Metering FAQ
How accurate are Sage thermal mass flow meters?
Why choose thermal mass over a volumetric flow meter?
Can accuracy be verified without pulling the meter out of the line?
Which gases do these meters handle?
How does a Sage meter integrate with a monitoring system?
What is the difference between the SIP and SRP series?
Sage Metering products
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