Product Description

The ABB NGC8206 is compact field‑installed gas chromatograph developed for natural‑gas composition analysis and custody‑transfer metering applications. Serving as an on‑site analytical core unit along natural‑gas pipelines, it separates and calculates hydrocarbon components from N₂ through C6+ and optional H₂S. It computes heating value, specific gravity, Wobbe index and compressibility complying with AGA‑8 standards and outputs certified measurement data for gas transaction and process‑control systems.

This industrial‑grade analyzer is equipped with built‑in 32‑bit Windows‑CE controller and high‑precision 24‑bit A/D converter to deliver outstanding test repeatability. It consumes less than 7 Watts under normal working conditions and supports low‑power continuous running. It supports Modbus‑TCP, RS‑485 and Ethernet communication for seamless data uploading to DCS or third‑party platforms. With explosion‑proof housing, wide‑temperature adaptation and enhanced EMC anti‑interference design, it adapts to outdoor pipeline sites and supports 24‑7 long‑term stable field‑operation without frequent calibration.

Main Specifications

1. Full Part Number: NGC8206; Product Type: Field‑mount natural‑gas chromatograph analyzer for custody‑transfer metering
2. Applicable System: Natural‑gas pipeline transmission system, gas metering station and energy‑management platform
3. Core Function: Gas component separation, calorific‑value calculation, AGA‑8 computation, historical‑data storage and data transmission
4. Analyzed Components: N₂, CO₂, C1‑C5, C6+ with optional H₂S detection function
5. Testing Accuracy: Repeatability ±0.0125% under ambient conditions and ±0.025% across full temperature range
6. Power Supply: 10.5‑16VDC or 21‑28VDC with nominal power consumption less than 7 Watts
7. Communication Options: RS‑232, RS‑485, Modbus‑RTU/TCP and optional Ethernet interface
8. Built‑in Controller: 32‑bit Windows‑CE system for chromatogram processing and data calculation
9. Certification Standard: ATEX II2G Ex d IIB+H2 T6 and Class I Div.1 explosion‑proof approval
10. Working Environment:‑18℃~55℃ standard range,‑40℃~55℃ with cold‑weather enclosure; 95% RH non‑condensing
11. Structural Feature: Compact pipe‑mount design with small footprint for direct installation near sampling points
12. Operational Reliability: Low‑maintenance design, long calibration cycle and low failure rate for continuous field‑metering tasks

Core Functions

1. Act as the dedicated on‑site gas‑analysis unit for natural‑gas pipeline metering stations.
2. Separate each hydrocarbon component and calculate mole‑percent concentration through chromatography techniques.
3. Compute heating‑value, compressibility factor and Wobbe index complying with AGA‑8 industrial standards.
4. Store historical analysis records for gas custody‑transfer verification and equipment performance checking.
5. Transmit valid measured data to upper DCS systems through standard industrial communication protocols.
6. Carry out self‑diagnosis to identify circuit faults and abnormal sampling‑status automatically.
7. Support long‑term unattended running for remote pipeline monitoring without frequent on‑site maintenance.
8. Guarantee accurate and fair energy‑calculation for natural‑gas trade and pipeline‑control applications.

Application Scenarios

1. On‑pipeline gas composition detection and custody‑transfer metering stations for natural‑gas industry
2. Gas‑field well‑head monitoring, city‑gate station and gas‑distribution network analytical platforms
3. Petrochemical plants, LNG terminals and combined‑cycle power‑plant fuel‑gas analysis scenarios
4. Industrial sites requiring certified high‑precision calorific‑value calculation for energy settlement
5. Old‑fashioned gas‑chromatograph replacement and natural‑gas monitoring system upgrading projects
6. Outdoor hazardous areas with wide‑temperature variation, high‑humidity and electromagnetic interference
7. All natural‑gas measurement and process‑monitoring applications based on ABB Totalflow platform.