id-200, Precision You Trust
The ID-200 Oil Tank Dewatering System
Control the Interface, Control Everything.
The ID-200 isn’t just a sensor; it’s a key to operational control. In applications where oil and water must be precisely separated, the ID-200 delivers accurate, real-time interface detection, preventing hydrocarbon loss, reducing chemical waste, and protecting equipment from contamination. With proven results across global refineries, this technology has saved operators up to £1.9 million per year in lost product and process inefficiencies. When uptime, safety, and cost control matter, the ID-200 is the solution engineers trust.
What is the ID-200?
The ID-200 series interface detectors are used for interface measurement and control in all liquid/liquid and vapour/liquid separation processes, including emulsions and foam. A wide range of models, process connections, and output options are available to control a variety of process installations such as tanks, decanters, dehydrators, desalters, coalescers, etc. The ID-200 series’ advanced control capabilities can automate upset responses, antifoam and demulsifier chemical feed systems and eliminate cross-contamination of separate phases.
Reliable Interface Detection
Upgrade Your Separation Process with the ID-200 Interface Sensor
Why the ID-200 Is the Smart Choice
With increasing pressure on efficiency, compliance, and uptime, the ID-200 delivers what others can’t: consistent, real-time accuracy in even the harshest process conditions. Whether you’re managing a crude desalter, a storage tank, or a wastewater system, this sensor ensures reliable interface detection and automatic tank dewatering without the risk of cross-contamination or manual error.
Built for Results That Last
Engineered to perform under high pressure and extreme temperatures, the ID-200 is built using durable, corrosion-resistant materials including 316 stainless steel, duplex, and Hastelloy options. Its precision measurement—down to low ppm levels—reduces chemical overuse, prevents hydrocarbon loss, and keeps systems running at peak performance. It’s a long-term investment that pays off in uptime, safety, and bottom-line savings.
For Engineers: What You Need to Know
- 2-wire, loop-powered design with HART protocol for easy integration
- Real-time monitoring with continuous 4–20 mA output
- Emulsion concentration range: 0–100% Hydrocarbon/Water
- Temperature range: up to 450°F (232°C)
- Pressure rating: up to 3000 PSI
- Available with Aflas, Teflon, and Viton seals
- NACE-compliant for corrosive environments
Get quick expert help.
Whether you’re specifying equipment for a new build or upgrading a legacy system, the ID-200 offers field-proven accuracy, straightforward commissioning, and dependable performance across a wide range of applications.
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Key Features
- Real-time interface detection
- Automatic tank dewatering
- High accuracy down to low ppm
- 2-wire loop powered with HART
- Durable construction: 316SS, duplex, Hastelloy options
- Operates in high-temp, high-pressure environments
- NACE-compliant for corrosive service
- Low maintenance, field-proven reliability
Applications
- Crude oil desalters
- Free water knockouts (FWKO)
- Storage and slop tanks
- Coalescers and dehydrators
- API separators
- Amine and sour water units
- Refining, upstream, and petrochemical facilities
- Wastewater treatment and produced water systems
Technical Specifications
- Measurement range: 0–100% Hydrocarbon/Water
- Output: 4–20 mA with HART communication
- Pressure rating: Up to 3000 PSI
- Temperature range:
- Standard: 32°F to 300°F (0°C to 149°C)
- High-temp: Up to 450°F (232°C)
- Process connections: Wide range available
- Seal options: Aflas, Teflon (standard), Viton (optional)
- Construction: Teflon-coated 316SS (standard), optional duplex, Hastelloy, Monel
Why choose the ID-200?
The Agar ID-200 Series is trusted by engineers and operators worldwide for one reason: performance you can count on. Its design meets the demands of critical separation processes. The ID-200 delivers unmatched precision, reliability, and durability in environments where failure isn’t an option.
Whether you’re managing a desalter, separator, or storage system, the ID-200 helps reduce hydrocarbon losses, improve safety, and cut unnecessary chemical usage. With over five decades of instrumentation expertise, this is more than just a sensor—it’s a long-term solution built for real-world results.
Choose the ID-200 today and experience cleaner operations and proven performance.
Technical resources
Automatic tank dewatering system guide
Understand the process sequence, control logic and planning questions for safer, more repeatable water draw-off.
How crude oil desalters work
Learn how wash water, electrostatic separation, interfaces and emulsions affect crude oil desalter performance.
ID-200H specifications and installation planning
Review published operating ranges, materials, connections and a practical commissioning checklist.
Trusted by some of the best in the industry
ID200h Brochure
Get a complete overview of the ID200h Series Interface Detector, including technical specifications, key features, installation options, and performance benefits across a range of separation applications. This brochure is ideal for engineers, procurement teams, and operations managers looking to improve interface control, reduce hydrocarbon losses, and boost process efficiency.
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