Measurement Principle & Electrical Performance

The instrument transmits and receives ultrasonic signals bidirectionally via paired insertion transducers, calculates gas flow velocity by detecting sound wave transit time difference, and integrates real-time pressure and temperature signals to compute standard volume flow and flare gas mass flow. Built-in digital filtering algorithm restrains measurement jitter caused by turbulent flow, pulsating flow and flue dust interference. It supports 1-channel standard configuration and optional dual-channel measurement for dual-pipe monitoring or single-pipe dual-path flow averaging to promote measurement precision. Equipped with isolated 4–20mA analog output, frequency/totalizer output, multi-group alarm relay contacts, with optional HART, Modbus, Ethernet communication to upload data to DCS and SCADA systems. Massive circular storage records over 43,000 groups of flow historical data; all calibration parameters and pipe settings are stored in non-volatile memory free from data loss after power failure. Internal electronic components pass high-low temperature aging screening to adapt to long-term continuous online operation in harsh industrial environments.

Structural Design & Environmental Adaptability

Standard shell adopts epoxy-coated aluminum structure with IP66/NEMA4X protection grade, obtains Class I Div.2 explosion-proof certification; stainless steel explosion-proof housing is available for high-risk flare pipeline areasBaker Hugh.... The overall size is 362×290×130 mm with net weight of 5 kg, equipped with dual independent backlit LCD graphic displays and tactile membrane keypad for local parameter setting and data viewingBaker Hugh.... The internal PCB is coated with anti-corrosion conformal coating to resist damp, dust and corrosive flare gas components. The system allows maximum 300-meter wiring distance between host and transducers, fitting long-distance field layout. The whole machine meets industrial EMC standards and operates stably under electromagnetic interference from fans, pumps and frequency converters on site.

Matching Components & Application Scenarios

Support dedicated insertion ultrasonic transducers, hot tapping installation parts, pressure/temperature auxiliary transmitters and matched internal mainboard, communication board spare parts such as 703-1403-02,703-1475-04. Mainly applied to refinery flare stack gas metering, petrochemical plant vent gas monitoring, chemical waste gas discharge measurement, offshore platform flare gas statistics and other working conditions. It is core metering equipment for enterprise pollutant emission reporting, flare combustion efficiency analysis and production material balance management.

Stability & Maintenance Advantages

No moving internal components, free from abrasion and medium adhesion pollution, greatly lowering routine maintenance workload. Each GF868 unit completes signal matching calibration, full function detection and long-time powered aging test before factory delivery to guarantee stable batch performance. Built-in self-diagnosis function feeds hardware fault prompts to support rapid troubleshooting by maintenance personnel. Standard menu-based configuration and PanaView upper computer debugging software shorten equipment commissioning and replacement cycle. Original GE genuine equipment effectively avoids measurement deviation and system downtime risks brought by generic substitutes. Shockproof sealed packaging meets long-term spare parts warehousing requirements, and circuit measurement performance will not degrade significantly under dry constant-temperature storage conditions.