Measurement Principle & Electrical Performance

Adopts transit-time ultrasonic measurement principle, uses bidirectional ultrasonic probes to capture sound wave transmission time difference in gas medium, calculates gas flow velocity and accumulates flow volume through internal high-speed operation algorithm. Built-in flow turbulence correction and low-flow compensation algorithm to ensure stable measurement accuracy under low flow and pulsating flare gas conditions. Equipped with isolated 4–20mA analog output, relay alarm contacts and serial communication interface for data upload to DCS control system. All calibration parameters are stored in non-volatile memory without data loss after power failure. Core circuit boards pass high-low temperature aging screening to adapt to long-term continuous online measurement.

Structural Design & Environmental Adaptability

The whole machine adopts industrial-grade sealed cabinet structure, optional general protection type and explosion-proof enclosure for Zone 2 hazardous areas. The internal circuit is coated with conformal coating to resist damp, dust and weak corrosive gas erosion in chemical plant environments. The working ambient temperature ranges from -20℃ ~ +60℃, with strong anti-vibration performance to adapt to the vibration environment of flare pipelines and factory exhaust pipelines, and fully meets industrial EMC electromagnetic compatibility requirements. Supports long-distance wiring layout of gas ultrasonic sensors.

Matched Components & Application Scenarios

Matching gas ultrasonic transducers, dedicated signal cables and installation fixing accessories; can be replaced and upgraded with GF868 series new flare flowmeters in a compatible mannerBaker Hugh....

Core application scenarios: refinery flare gas emission metering, chemical plant vent gas monitoring, natural gas processing plant waste gas statistics, environmental protection flare discharge data filing measurement. It is used as a whole machine replacement spare part when the old 7168 host has measurement disorder, communication failure and main board damage.

Stability & Maintenance Advantages

No internal mechanical wearing parts, low daily maintenance frequency and operation cost. Mature digital algorithm improves the anti-interference ability of the original analog 7100 model. The installation size and signal interface are backward compatible with the old system, which can realize direct replacement and greatly shorten the field renovation downtime. Original genuine 7168 host effectively avoids measurement deviation caused by modified equipment. Shockproof sealed packaging meets long-term spare parts inventory requirements, and overall measurement performance remains stable under dry constant-temperature storage conditions.