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Rosemount™ 770XA Gas Chromatograph

The Rosemount 770XA Natural Gas Chromatograph delivers highly accurate field-mounted analysis with a wide ambient temperature range.

Rosemount 770XA Natural Gas Chromatographs provide the most accurate analysis of natural gas available in a field mounted gas chromatograph (GC). The 700XA features a design that increases analytical capability, maximizes ease of use, and widens the range of analysis options in a GC with an ambient temperature rating of -20 °C to 60 °C/ -4 °F to 140 °F. These enhanced features make the 700XA ideal for natural gas custody transfer and applications requiring advanced analysis such as C9+ (with hydrocarbon dew point and cricondentherm calculations) and C6+ with hydrogen sulfide (H2S).

Key Features

  • Best C6+ heating value/BTU repeatability available
  • ± / -0.01 % (± / -0.1 BTU/1000 BTU) in temperature controlled environment
  • ± / 0.02% (± / -0.2 BTU/1000 BTU) in uncontrolled environment (-20° to 60 °C/-4° to 140 °F) with a three minute cycle time
  • Best-in-industry C9+ repeatability available
  • ±0.0125 % of heating value (±0.125 BTU/1000 BTU) for controlled environment
  • ±0.025 % (±0.25 BTU/1000 BTU) of heating value for uncontrolled environment (-20° to 60 °C/-4° to 140 °F) with a five minute cycle time
  • Wide dynamic range from percent to trace level components down to 2 ppm
  • Reliable performance over broad ambient temperatures
  • -40 °C to 60 °C/-40 °F to 140 °F