AccuChrome™ GC4 — BTU & C9+ Hydrocarbon Analyzer

Name: AccuChrome™ GC4 — BTU & C9+ Hydrocarbon Analyzer
Brand: Galvanic Applied Sciences Inc.
SKU: GAL-ACCUCHROME-GC4

BTU & hydrocarbon content analysis for natural gas processing and custody transfer.

ModelAccuChrome GC4

SKUGAL-ACCUCHROME-GC4

CategoryGas Analysis & Chromatography

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Key Features

Btu accuracy ±0.25 % per 1,000 Btu/scf (or ±0.5–2 % FS, application specific)
C6–C7+ hydrocarbon measurement; C9 capability (Div 1 model); ≤ 50 % hydrogen
Full auto calibration and validation for stand-alone operation
TCD detector; valves rated for 1,000,000 injections
4-minute typical analysis sequence
4 × 4–20 mA outputs, Modbus TCP/IP, RS232 or RS485, Ethernet GUI
Class I Div 2 / Div 1 and ATEX/IECEx Zone 1 versions; Measurement Canada

Overview

The Galvanic AccuChrome GC4 performs Btu and constituent analysis of natural gas for custody transfer, process optimization during fractionation, and 40 CFR 60 Subpart JA flare-gas emissions monitoring. Auto calibration and validation enable fully hands-off, stand-alone operation, with all components field-serviceable for fast, low-cost maintenance.

Working Principle

Sample gas is separated by gas chromatography and measured with a thermal-conductivity detector housed in an airless heat-sink oven. Low-maintenance injection valves and a detector that resists burnout from carrier-gas loss or corrosive H2S keep the analyzer running reliably in harsh field conditions.

Applications

Benefits

Field-proven, rugged construction for harsh environments
Fully field-serviceable — reduces downtime and module-replacement cost
Standard or customized reports with location, technician and comments
Available in C6+, C7+, and hydrogen-only configurations

Technical Specifications

Measurement
Compounds	Btu, SG, Wobbe, mole % (O2, CO, C6+–C12+, N2, CH4, CO2, ethane, H2S, propane, butanes, pentanes, H2)
Accuracy	±0.25 % Btu/scf per 1,000 Btu/scf or ±0.5–2 % FS (application specific)
Sensitivity	200 ppm ≤ C7+
Detector	Thermal conductivity (TCD)
Analysis Time	4 minutes (application specific)
Carrier Gas	Helium or hydrogen at 4.1 bar, 20 cc/min

I/O
Analog	4 × 4–20 mA out, 3 × 4–20 mA in
Digital	Modbus TCP/IP, RS232 or RS485; 4 × SPDT relays; 4 discrete inputs

Physical
Power	24 VDC or 90–240 VAC, 100 W start-up / 50 W running
Ambient	-20 to 60 °C
Enclosure	Stainless steel Type 4/4X IP66 (Div 2) or cast aluminium Type 4 (Div 1 / Zone 1)
Area Classification	Class I Div 2 / Div 1 Groups BCD T3; II 2 G Ex db [ia Ga] IIB+H2 T3 Gb

Downloads

Technical Datasheet (PDF)PDF

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Frequently Asked Questions

What warranty is offered on this product?

All Tetracon-supplied instruments carry the original manufacturer warranty (typically 12–24 months) plus first-line local support from our Islamabad service centre.

Do you provide installation and commissioning?

Yes. Our manufacturer-trained engineers offer on-site installation, commissioning and startup training anywhere in Pakistan.

Are spares and calibration available locally?

Common spares are held in local stock. Calibration is available at our lab or on-site with NIST-traceable reference standards.

How long is the typical lead time?

Stocked items ship within 3–5 working days; engineered configurations typically 6–10 weeks depending on manufacturer schedule.

Request a Quote — AccuChrome™ GC4 — BTU & C9+ Hydrocarbon Analyzer

Complete the form below and one of our engineers will respond within 1 working day with pricing and lead time. Prefer email? Contact our sales team.