Sierra TopTrak 820 Mass Flow Meter is designed to replace volumetric flow rate devices at a comparable installed cost. No temperature or pressure corrections are required, as in the case of most other flow monitoring devices, such as rotometers, turbine meters or critical orifices.
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| Sierra TopTrak 820 Mass Flow Meter |
Available in flow ranges from 0 to 10 sccm up to 0 to 50 slpm, TopTrak is suitable for any clean gas flow measurement application. Wetted surfaces are rugged 316 stainless steel, nickel plating, 6/6 reinforced Nylon® and Viton® "O" rings; all are corrosion-resistant.
The 820 measures and displays the mass flow rate directly in sccm or slpm. The integral instrument display is tiltable over 180° for easy viewing and can be removed for remote panel mounting. A 0 to 5 VDC or 4 to 20 mA output signal linearly proportional to gas mass flow rate is provided for recording, data-logging or control. This device is widely used in a variety of flow validation and calibration applications-by dozens of instrument OEMs and in a multitude of laboratory, test and analytical operations.
Features
- Direct monitoring of mass flow rate eliminates need for ancillary pressure and temperature sensing
- Digital display of mass flow rate on flow body or remote version for panel mounting
- Electronic output of mass flow rate for control or data-logging
- Fast response to changes in flow rate
- Large, straight sensor tube reduces contamination and maintenance down-time
- Platinum sensor eliminates zero drift and ensures long-term repeatability
- Primary standard calibration ensures starting point accuracy and NIST traceability
- CE Approved
Specifications
- Most gases; check compatibility with wetted materials
- Accuracy: +/- 1.5% of full scale
- Repeatability: +/- 0.5% of full scale
- Nylon version to 50 slpm (nlpm) maximum
- Aluminum version to 175 slpm (nlpm) maximum
- Stainless-steel version 500 slpm (nlpm) maximum
- Response time: 800ms time constant
- Pressure: Stainless-steel version to 500 psig (34.5 barg) maximum; Aluminum and Nylon versions to 150 psig (10 barg) maximum
- Gas/ambient temperature 32 to 176°F (0 to 80°C), all versions
- 15 VDC, 24 VDC power supply
- Wetted materials: 10% glass-filled Nylon® 6/6; 316 stainless-steel
- Seals: Viton, Neoprene, Kalrez, Teflon
- Analog signals included: 4-20 mA; 0-5 VDC
- CE approved
Download Datasheet: Sierra TopTrak® 820 Mass Flow Meter
Reference: sierrainstruments.com
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