Rosemount™ 770XA Natural Gas Chromatograph

Rosemount

Rosemount™ 770XA Natural Gas Chromatograph

Rosemount

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).

Specifications

Ambient Temperature
-40° to 60 °C/-40° to 140 °F
Enclosure Rating
IP66
Communication Protocol
Ethernet: Two ports – one RJ-45 and one four-wire – with 10/100 mbps
Input
Analog inputs: Two standard isolated inputs filtered with transient protection, 4–20 mA (user scalable and assignable)
Digital inputs: Five inputs, user assignable, optically isolated, rated to 30V DC @ 0.5 A
Output
Analog outputs: Six self-powered isolated outputs (4–20 mA)
Digital outputs: Five user-assignable outputs, Form C and electromechanically isolated, 24V DC
Ports
Serial Communication Ports: Three termination blocks, configurable as RS-232, RS-422 or RS-485 and one RS-232 D-sub (9-pin) Modbus/PC Connection
Power Supply
Standard: 24V DC (21–30 VDC) • Optional: 90–264V AC, 47–63 Hz
Certifications/Approvals
CSA: For USA: Class I, Zone 1, AEx d IIC, Enclosure Type 4. Class I, Division 1, Groups B, C, and D, IP66
For CANADA: Class I, Zone 1, Ex d IIC, Enclosure Type 4. Class I, Division 1, Groups B, C, and D, IP66.
ATEX / IECEx. Ex II 2G. Ex d IIC Gb T6. (Ta = -20 °C to 60 °C)
Dimensions
Wall-mount: 711 mm H x 445 mm W x 498 mm D (28";  H x 17.5";  W x 19.6"  D)
Pipe-mount: 711 mm H x 445 mm W x 671 mm D(28"H x 17.5"W x 26.4"  D)
Floor-mount: 1532 mm H x 445 mm W x 612 mm D (60.3"  H x 17.5" W x 24.1" D)
Mounting
Floor-standing (standard), wall- or pipe-mount (optional)
Weight
50 kg (110 lbs.)
Weight
 

Features

  • Best C6+ heating value/BTU repeatability available
  •  ± / -0.01 % (± / -0.1 BTU/1000 BTU) in temperature controlled environment
  •  ± / 0.015 % (± / -0.15 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

Documents & Drawings

Training & Services