OXYGEN ANALYSER
NGK
New product
The Energy Support Corp. DTF-201R Oxygen Analyzer (RX-621310-A11B) is a compact, panel-mounted oxygen analyzer receiver designed for continuous oxygen concentration monitoring in combustion and industrial process applications. Together with the AS-210 zirconia oxygen sensor, it forms the TF-SD201R oxygen analyzer system, widely used to optimize combustion efficiency, reduce fuel consumption, and improve operational safety.
In the marine industry, oxygen analyzers are commonly installed on auxiliary boilers, thermal oil heaters, incinerators, industrial furnaces, and engine room automation systems. By continuously measuring oxygen concentration in flue gas, the analyzer helps engineers maintain the ideal air-to-fuel ratio, resulting in cleaner combustion, lower emissions, and improved fuel economy.
The official Energy Support operation manual identifies the DTF-201R as a receiver for the TF-SD201R system and documents wiring, calibration, analog outputs, alarm functions, and operating procedures.
The DTF-201R functions as the display and control receiver of the oxygen analyzer system. It accepts measurement signals from the zirconia oxygen sensor, processes oxygen concentration values, displays them on the front panel, and transmits analog signals to PLCs, distributed control systems (DCS), recorders, or marine automation panels.
The receiver supports multiple measuring ranges and analog outputs, making it suitable for both marine and industrial installations. According to the manufacturer's documentation, the analyzer provides 4–20 mA current output, selectable voltage outputs, alarm functions, and key-based calibration and configuration.
Your supplied unit is identified as:
| Item | Information |
|---|---|
| Manufacturer | Energy Support Corp., Japan |
| Product | Oxygen Analyzer |
| Model | DTF-201R |
| Catalog Number | RX-621310-A11B |
| Manufacturing No. | 1705051 |
| Measuring Range | 0–5%, 0–10%, 0–25% O₂ |
| Power Supply | AC 85–132 V, 50/60 Hz |
These specifications match the identification label shown in your uploaded equipment photographs.
The Energy Support Corp. DTF-201R Oxygen Analyzer (RX-621310-A11B) is a high-performance zirconia oxygen analyzer receiver engineered for continuous oxygen concentration measurement in combustion gas applications. It is part of the TF-SD201R Oxygen Analyzer System, operating together with the AS-210 Oxygen Sensor to deliver precise oxygen monitoring for industrial and marine combustion processes.
Marine auxiliary boilers, thermal oil heaters, incinerators, and industrial furnaces require accurate oxygen measurement to maintain the optimum air-to-fuel ratio. By continuously monitoring oxygen concentration in flue gas, the DTF-201R helps engineers improve combustion efficiency, reduce fuel consumption, lower emissions, and extend burner life.
According to the official Energy Support documentation, the DTF-201R is designed as a panel-mounted receiver featuring digital signal processing, multiple analog output options, and compatibility with the AS-210 zirconia oxygen sensor.
The DTF-201R is the control and display unit of the oxygen analyzer system. It receives electrical signals generated by the AS-210 zirconia sensor, processes oxygen concentration values using digital signal processing technology, and displays the measured oxygen percentage on the front panel.
Besides local indication, the receiver transmits measurement signals through standard analog outputs for integration with PLCs, Distributed Control Systems (DCS), boiler burner management systems, engine room monitoring systems, and marine automation panels.
Its compact design allows easy installation inside marine electrical cabinets while maintaining stable operation even under demanding engine room conditions.
The official manufacturer states that the TF-SD201R system supports air-point calibration, compact installation, and continuous flue gas oxygen measurement using zirconia sensing technology.
| Item | Specification |
|---|---|
| Manufacturer | Energy Support Corporation (NGK Group), Japan |
| Product | Oxygen Analyzer Receiver |
| Model | DTF-201R |
| Part Number | RX-621310-A11B |
| Analyzer System | TF-SD201R |
| Oxygen Sensor | AS-210 Zirconia Sensor |
| Measuring Principle | Zirconia Limiting Current Method |
| Measuring Range | Configurable ranges including 0–5%, 0–10%, and 0–25% O₂ |
| Display | Digital Front Panel Display |
| Analog Output | 4–20 mA DC and selectable voltage outputs |
| Installation | Panel Mount |
| Application | Marine Boiler, Furnace, Combustion Control |
Your supplied unit, shown in the uploaded photographs, matches the DTF-201R receiver nameplate with RX-621310-A11B, manufactured by Energy Support Corporation, Japan.
The official manuals also emphasize safe wiring practices, grounding, gas leak testing after sensor maintenance, and periodic calibration for reliable operation.
The Energy Support DTF-201R Oxygen Analyzer has been engineered for continuous industrial and marine operation. Unlike portable oxygen meters, this receiver is designed for permanent installation inside automation panels, providing reliable oxygen monitoring with minimal maintenance.
Its zirconia-based sensing technology delivers stable measurement accuracy over long operating periods, making it suitable for vessels that require dependable combustion control.
Key features include:
The manufacturer specifies repeatability of ±1% FS (or ±0.5% FS depending on the selected range), analog 4–20 mA output, and support for multiple oxygen measuring ranges in the TF-SD201R system.
The DTF-201R is widely used wherever accurate combustion monitoring is required.
Typical marine applications include:
Maintaining the proper oxygen level improves combustion efficiency, reduces soot formation, lowers fuel consumption, and helps protect boiler components from inefficient firing conditions. These analyzers are particularly valuable on vessels operating continuously where fuel economy and reliable automation are priorities.
The Energy Support DTF-201R can communicate with numerous marine automation and industrial control systems.
Common compatible equipment includes:
The analyzer normally operates together with the AS-210 Zirconia Oxygen Sensor, forming the complete TF-SD201R oxygen analyzer package supplied by Energy Support Corporation.
SM MARINE SERVICE™ can assist customers in sourcing original and replacement parts for Energy Support oxygen analyzer systems, including:
We also support sourcing discontinued Japanese marine automation equipment that is no longer readily available through standard distribution channels.
SM MARINE SERVICE™ provides professional technical assistance for marine oxygen analyzer systems.
Our support includes:
The official operation manual emphasizes safe wiring, proper grounding, gas leak testing after maintenance, and periodic calibration to ensure reliable performance.
It is a zirconia oxygen analyzer receiver used for continuous oxygen concentration measurement in combustion gas applications.
The standard configuration combines the AS-210 Oxygen Sensor with the DTF-201R Receiver in the TF-SD201R system.
Yes. It is commonly used for auxiliary boilers, thermal oil heaters, marine incinerators, and other combustion control systems.
Yes. Routine calibration and inspection are recommended to maintain measurement accuracy and long-term reliability.
Yes. Depending on stock availability, we supply new, used, and professionally reconditioned marine automation equipment together with technical support.
Whether you need a new, used, or reconditioned Energy Support DTF-201R Oxygen Analyzer, spare parts, repair, calibration, troubleshooting, or technical consultation, SM MARINE SERVICE™ is ready to support your marine automation requirements with worldwide supply and fast technical assistance.
SM MARINE SERVICE™
Samir Market, DT Road, Pahartali, Beside CDA Market, Chattogram, Bangladesh
China Warehouse & Support Center: Shanghai, China
Website: www.smmarineservice.com
Email: info@smmarineservice.com
WhatsApp: +8801818929292
Marketing Contact: Nazmul Hasan Bhuiya
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