ABB NGC8206 Natural Gas Chromatograph Analyzer

NGC8206 is a field‑mounted natural gas chromatograph from ABB Totalflow series for custody‑transfer grade gas composition analysis. It measures natural gas components ranging from N₂ to C6+, calculates heating value, Wobbe index and relative density, delivering accurate metering data for natural gas pipeline custody transfer applications. Integrated 32‑bit Windows CE controller processes chromatogram data locally and stores historical records for audit traceability.

Adopting manifold‑based modular structure without complex internal tubing, this compact transmitter‑style analyzer occupies only 1.1 cubic‑foot space and consumes less than 7W power for continuous operation. Equipped with TCD thermal conductivity detector and dual electronic carrier‑gas regulators, it supports long calibration intervals, multiple sample streams and rich communication interfaces for oil‑gas field remote monitoring systems.

Main Specifications

• Brand: ABB; Model: NGC8206; Product Type: On‑site Natural Gas Chromatograph
• Measuring Range: Gas components N₂ to C6+, optional H₂S separation function
• Detector Type: TCD thermal conductivity detector with glass‑encapsulated thermistor sensor
• Analysis Cycle: Approximately 5 minutes per cycle, user configurable scheduling available
• Repeatability: ±0.125 Btu @1000 Btu under ambient working condition
• Power Consumption: Less than 7 W continuous running power consumption
• Carrier Gas: Helium, consumption below 20 cc/min during analysis cycle
• Communication: Multi‑serial ports, supports third‑party host system data output
• Operating Environment: ‑18℃ ~ +55℃, extended low‑temperature kit down to ‑40℃, field‑explosion‑proof enclosure
• Certifications: Custody‑transfer metrology approval, CE, compliant with oil‑gas industry standards

Core Functions

• Real‑time on‑site chromatographic analysis of natural gas component mole fraction for pipeline custody‑transfer energy metering.
• Automatically calculate heating value, Wobbe index, relative density and hydrocarbon dew point for gas‑quality evaluation.
• Local 32‑bit controller completes chromatogram processing, historical‑data storage and event logging for traceability audit.
• Multi‑stream sample switching supports up to 4 sample inputs, enables automatic calibration sequence execution.
• Modular manifold structure reduces internal‑tube‑joint failure risks, realizes long‑term stable field‑site operation.
• Multiple communication ports transmit analysis results to flow computers, SCADA and third‑party host monitoring platforms.

Application Scenarios

• Gas‑quality analysis spare replacement for natural‑gas pipeline custody‑transfer metering stations and wellhead gathering stations.
• On‑line analytical instrument for gas‑distribution network gate stations, LNG receiving terminal and gas‑processing plant production lines.
• Maintenance backup inventory for oil‑gas upstream‑downstream energy‑measurement and gas‑quality‑monitoring automation systems.
• Matching analytical device cooperating with flow‑computers, remote‑telemetry RTU and oil‑gas‑field SCADA monitoring system.
• Retrofit replacement for old gas‑chromatograph systems suffering large volume, high power consumption and frequent calibration requirements.
• Global aftermarket spare supply for automation maintenance teams managing ABB Totalflow oil‑gas‑measurement equipment worldwide.