DigitalFlow™ GS868 Datasheet
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Panametrics ultrasonic steam mass flowmeter Applications The DigitalFlow GS868 steam ultrasonic flowmeter is a complete ultrasonic flow metering system that measures saturated or superheated steam for: • Heating, ventilating and air conditioning (HVAC) • Pneumatic power systems • Food and beverage industry • Water purification and distillation • Chemical and petrochemical industries • Electric power generation • Steel industry • Public works • Manufacturing • No moving parts • No pressure drop • Wide rangeability with 1500 to 1 turndown ratio • Non-obstructive flow measurement • Tolerance to dirty streams • Low maintenance • Suitable for high temperatures • Two-path measure

Panametrics ultrasonic steam mass flowmeter The DigitalFlow GS868 steam ultrasonic flowmeter is designed to measure the mass flow rate of saturated or superheated steam. It offers a unique combination of no pressure drop, wide rangeability, ease of installation, low maintenance and high accuracy in a full-feature flowmeter package. The DigitalFlow GS868 flowmeter uses the correlation Transit-Time™ technique Compact ultrasonic transducers are installed in the pipe or duct, one upstream of the other. The transducers send and receive ultrasonic pulses through the steam. The meter measures the...

GS868 specifications Operation and performance Fluid types Saturated and superheated steam Pipe sizes 2 in to 48 in NB (50 mm to 1200 mm DN) Pipe materials All metals. Consult Panametrics for other materials. Flow accuracy (velocity) ±1% to 2% of reading typical Accuracy depends on pipe size and whether measurement is one-path or two-path. Accuracy to ±0.5% of reading may be achievable with process calibration. Repeatability ±0.2% to 0.5% of reading Range (bidirectional) –150 to 150 ft/s (–46 to 46 m/s) Rangeability (overall) 1500:1 Specifications assume a fully developed flow profile...

Permanent pressure loss by flowmeter type 4 in (100 mm) vortex shedding 4 in (100 mm) orifice plate Transit-time 12 in (300 mm) vortex shedding 12 in (300 mm) orifice plate Transit-time Saturated steam flow Saturated steam flow Digital interfaces Pressure ranges • Optional: 3480 psig (240 bar) maximum • Optional: Modbus® RS485 or TCP protocol Transducer materials • Optional: Ethernet • Standard: Titanium or stainless steel Transducer mounting Flanged port: spool piece or cold tap • Optional: Foundation fieldbus Site parameter programming Menu-driven operator interface using keypad and...