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Analyzer Systems
Analyzer Systems is the part of our catalog for process analyzers: instruments that measure the composition and quality of gas and liquid streams, together with their sensors, spare parts and consumables. The largest groups of listings come from ABB, Siemens, Hach, Galvanic and AMETEK. Seven Star LLC, based in Muscat, supplies these analyzer systems to oil and gas, power, water and petrochemical sites in Oman and the GCC.
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Category guide
About Analyzer Systems
Analyzer Systems is the part of our catalog for process analyzers: instruments that measure the composition and quality of gas and liquid streams, together with their sensors, spare parts and consumables. The largest groups of listings come from ABB, Siemens, Hach, Galvanic and AMETEK. Seven Star LLC, based in Muscat, supplies these analyzer systems to oil and gas, power, water and petrochemical sites in Oman and the GCC.
Gas Analytics and Liquid Analytics: the two branches
Gas Analytics is split into Gas Analyzer Systems and Gas Analyzer Accessories. The first holds complete instruments: oxygen analyzers, H2S and sulfur recovery analyzers, gas chromatographs, moisture and dew point analyzers and tunable diode laser analyzers from makers such as Applied Analytics, Servomex, Michell Instruments and Teledyne. The second holds spare parts, most of them for the Siemens Maxum II process gas chromatograph, plus sensors and boards for oxygen analyzers.
Liquid Analytics has three groups. Liquid Analysis Sensors lists pH, ORP, conductivity, dissolved oxygen and chlorine sensors, largely from ABB and JUMO. Liquid Analytical Systems lists transmitters and online analyzers for silica, sodium, TOC, turbidity and oil in water from ABB, Hach, Endress+Hauser and Yokogawa. Liquid Analytical Accessories lists reagents, buffers and analyzer spares.
What a process analyzer system needs around it
An analyzer is only as good as the sample it receives. Extractive systems take a sample from the process and filter, cool, dry or depressurize it before it reaches the measuring cell. In-situ instruments measure directly in the pipe or duct and avoid the sample line. Most sites also need calibration or validation media, signal integration with the control system and, in classified areas, flameproof or purged enclosures with ATEX or IECEx certification.
What to send for an analyzer quotation
State the component or parameter and its range, the full stream composition, pressure and temperature at the sample point, the area classification, outputs and power supply. For spare parts, the manufacturer part number and analyzer serial number are enough. We check the configuration against the manufacturer documentation, propose the manufacturer’s successor when a model is obsolete, and provide datasheets and manufacturer certificates on request.
What to include in your inquiry
These details let us quote the right item the first time.
- Gas to be measured and its range
- Background gas composition
- Sample pressure and temperature
- Area classification
- Output and communication
- Model and serial number for spare parts
Missing some of them? Send what you have. A nameplate photo or an old part number is enough to start.
Top brands in Analyzer Systems
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Guides and articles
All articles →
Process Gas Analyzers for Refineries and Gas Plants: Oxygen, Moisture, Dew Point and Combustion Measurement Explained
Water Quality Analyzers for Desalination, Wastewater and Boiler Water: A Practical Guide for Oman’s Plants
Oman Industry 4.0 in 2026: Smart Factories, Digital Oilfields and the New Procurement Playbook
Request a Quote for Analyzer Systems
Looking for a specific model, part number or brand in Analyzer Systems? Send us your requirements and quantities. Seven Star LLC sources genuine industrial equipment for customers across Oman and the GCC and replies with a formal quotation.
- Genuine OEM products
- Supply across Oman & the GCC
- Formal quotation from our sales team
Free, no-obligation quotation · takes about 1 minute
Other enquiries: [email protected] · WhatsApp
Frequently Asked Questions
What is the difference between an extractive and an in-situ analyzer?
An extractive analyzer draws a sample out of the process through a probe and sample line, conditions it and measures it in a cabinet or shelter. This allows almost any measuring principle but adds lag time and sample system maintenance. An in-situ analyzer measures inside the pipe, duct or vessel, which gives a fast response and no sample transport, but the instrument must tolerate process conditions at the mounting point.
How do I decide which measuring principle suits my stream?
List every component in the stream, not only the one to be measured. Then check each candidate principle for cross-sensitivity to the other components, for the required range and detection limit, and for tolerance to moisture, dust or corrosive species. Response time and maintenance effort come next. If you send the stream composition and conditions, we compare suitable analyzers from the manufacturer documentation.
Can process analyzers be used in hazardous areas?
Yes, in versions built for it. Field analyzers and sensors are offered with flameproof, increased safety or intrinsically safe protection, and larger analyzers are mounted in purged and pressurized enclosures. The equipment carries an ATEX or IECEx certificate stating the zone, gas group and temperature class it is approved for. Give us the area classification from your hazardous area drawing so the correct version is quoted.
Which documents come with a process analyzer?
Typically the manufacturer's datasheet, operating manual, declaration of conformity, a factory test or calibration report and, for Ex versions, the hazardous-area certificate. Material certificates for wetted parts and wiring or dimensional drawings are issued by many manufacturers on request. Send the vendor document list from your requisition with the inquiry, and we confirm which documents the manufacturer issues for that model.
Can you help when an installed analyzer model has been discontinued?
Yes. Send the model code, serial number and application data of the existing analyzer. We identify the manufacturer's successor from the manufacturer documentation and point out what differs: dimensions, sample connections, outputs, reagents or spare parts. Spare parts for discontinued analyzers are sometimes still available by part number, so it is worth sending the parts list as well.
What information is needed to quote an analyzer system?
The measured component or parameter with its range, the complete stream composition, pressure, temperature and phase at the sample point, the distance to the analyzer location, area classification, ambient conditions, outputs and power supply. Say if you need the analyzer only or also sample conditioning. For liquids, add solids and oil content. A project datasheet covers most of this.