The OFS 2000F is specially developed for refinery flare stack applications where increased velocity scale, wider temperature range and quick response time are necessary.
OSI’s optical scintillation technology provides the most accurate, path-averaged air velocity measurements of any flare gas sensor. Its superiority has been proven again and again, in flare, air-assisted flare and SRU (Sulfur Recovery Unit) installations worldwide.
- Full cross-stack/duct measurement for superior accuracy
- Unaffected by distance & pressure, moisture or opacity
- Conforms to EPA 40 C.F.R. Part 60 Subpart Ja.
- Non-intrusive; nothing in flow path
- No flow media high-temperature limits
- No calibration necessary
- Accurate at low velocity and ambient temperature
- Installs in short runs – two dia. upstream, one dia. downstream
- Built in continuous self-test diagnostics
Measurement Technique: Optical scintillation
Dynamic range: 0.03m to 100m/sec, bidirectional
Accuracy (absolute): +/- 0.01m/sec basic -or- <2% of reading, whichever is greater
Repeatability (relative): +/- 0.01m/sec basic -or- <1% of reading, whichever is greater
Long term drift: < 1% per year
Response time: (user selectable) three seconds to 600 seconds
Stack/Duct/Pipe diameter: 0.3mto 10m, standard, consult OSI for other ranges
Media Temp/Pressure/Humidity: No effect on measurement
Media transparency: Up to 95% opacity
Ambient Temperature/Humidity: -40°C to 60°C (-40°F to 140°F) / 0%-100% condensing
Data output: 4-20mA and/or RS-232 ASCII serial I/O
Operating temperature range: -40°F to 140°F (-40°C to 100°C)
Humidity: 0% to 100%, Condensing
Dust intrusion: IP65
Mounting flange: 9in Dia. ANSI (150# 4in bolt pattern )