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Fireye Turbine Flame Sensor - Flame Sensors
FireyeFlame Sensors

Fireye Turbine Flame Sensor

The Fireye 3G-OTH-02793 Turbine Flame Sensor is a flame sensor designed for gas turbine applications. It is available for models including 3G-OTH-02793, 7FA, 9FA, 9FB, 7E, 9E, 6B, and 6FA. The sensor carries…

SKU 3G-OTH-02793

Also listed as: NEDGEAC2000 · NED GEAC 2000

Brand
Fireye
Item
Turbine Flame Sensor
Category
Flame Sensors
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Fireye
Models
NED-GEAC-2000, 7FA, 9FA, 9FB, 7E, 9E, 6B, 6FA
Category
Flame Sensors
Approvals
CE, Ex, Functional Safety UL Listed SIL 3, UKCA, UL Listed

Datasheet Content

[{"filename":"CU-123-NED-GEAC-2000_Turbine_Flame_Sensor_English_2024-02-27.pdf","text":"CU-123\n February 27, 2024\n\n\n\n\n 3G-OTH-02793\n TURBINE FLAME SENSOR\n\n\n\n\nDESCRIPTION\n\nThis document describes the Fireye Turbine Flame Sensor for turbine flame monitoring applications, its installation\nand setup. The Turbine Flame Sensor responds to Ultraviolet optical energy from the flame (200-400 nanometers)\nand has a loop powered 4-20mA output representing flame brightness from a very low level. It is not sensitive to\nvisible and IR emissions from hot walls. The Fireye design basis is a total separation of the optical sensing device\nfrom the turbine without the need for expensive water or pressurized air cooling systems.\n\n\n\nAPPLICATION\n\nThe Fireye Turbine Sensor is designed to sense flame in extreme high pressure and hot environments such as those\nfound on turbine generators at power generation facilities. The sensor can be used to improve the safety, reliability\nand performance by replacing obsoleted and outdated technologies. The device has been developed and tested for\nGE Frames 6F, 7F and 9F.\n\n\nOPERATION\n\nAt the hot end is a sapphire glass window to protect the lens and fiber optic bundle from extreme pressure and\ntemperature. The fiber optic bundle transmits the UV light to the electronic assembly on the cool end, which amplifies\nthe signal and converts it to a 4-20mA output. The sensor is a loop powered 4-20mA device. The sensor monitoring\nelectronics needs to provide a voltage between 18 and 30 VDC and the sensor will vary the current between 4 and\n20mA depending upon the turbine optical signal. Nominal voltage is 24 VDC. With no optical signal from the flame\noutput will be 4mA as a minimum. Because of variation in fuel, sighting, turbine styles, etc. the output level for a\nFLAME ON is a site decision. Fireye recommends that at least 5 mA be used as a threshold level to detect FLAME\nON. The cable has multiple conductors and uses white for +24 VDC and black for the return of the 4-20mA signal.\n\n\n\n\n© Fireye 2024 1\n\f© Fireye 2024\n\fTABLE OF CONTENT\n\n\n\n\nDESCRIPTION\b���������������������������������������������������������������������������������������������������������������������������� 1\nAPPLICATION\b����������������������������������������������������������������������������������������������������������������������������� 1\nOPERATION\b�������������������������������������������������������������������������������������������������������������������������������� 1\nWARNING\b������������������������������������������������������������������������������������������������������������������������������������ 4\nDIMENSIONS\b������������������������������������������������������������������������������������������������������������������������������ 5\nSPECIFICATIONS\b����������������������������������������������������������������������������������������������������������������������� 7\nPART NUMBERS\b������������������������������������������������������������������������������������������������������������������������� 9\nPACKING\b������������������������������������������������������������������������������������������������������������������������������������� 9\nMECHANICAL INSTALLATION\b������������������������������������������������������������������������������������������������� 10\nWIRING DIAGRAM\b�������������������������������������������������������������������������������������������������������������������� 12\nOUTPUT\b������������������������������������������������������������������������������������������������������������������������������������ 13\nMAINTENANCE\b������������������������������������������������������������������������������������������������������������������������� 14\nLAST MINUTE RISK ANALYSIS (LMRA)\b���������������������������������������������������������������������������������� 15\nMAINTENANCE PROCEDURE \b������������������������������������������������������������������������������������������������ 16\nLABEL\b���������������������������������������������������������������������������������������������������������������������������������������� 18\nCERTIFICATIONS\b��������������������������������������������������������������������������������������������������������������������� 18\nNOTICE\b������������������������������������������������������������������������������������������������������������������������������������� 20\n\n\n\n\n 3\n\f WARNING\n\n\t\t\n\n\n\n !\n\t\t The equipment described in this manual is capable of causing property\n\t\t damage, severe injury, or death. It is the responsibility of the owner or operator\n\t\t to ensure that the equipment described is installed, operated and commissioned in\n\t\t compliance with the manufacturer’s instructions and all applicable codes and regulations.\n\n\n\n\nWhen this equipment is fitted to an appliance, due regard must also be given to the requirements of that\nappliance.\n\nBefore attempting to install, commission, or operate this equipment, all relevant sections of this document must\nbe read and fully understood. If in doubt about any requirements consult your supplier.\n\nInstallation, commissioning or adjustment of this product MUST be carried out by suitably trained engineers or\npersonnel qualified by training and experience.\n\nThe manufacturer of this equipment accepts no liability for any consequences resulting from inappropriate,\nnegligent or incorrect installation, commissioning or adjustment of operating parameters of the equipment.\nThere are no user serviceable parts.\n\nBefore attempting any work on this equipment or any equipment controlled by or connected to this equipment, all\nrelated electrical supplies MUST be isolated.\n\nSafety interlocks MUST NOT be removed or overridden. Any faults once detected must be corrected before the\ncontrol is operated.\nDO NOT disconnect the sensor while the circuit is energized (live), unless the area is known to be non-hazardous\nand free of explosive gases.\nThese paragraphs indicate a risk of potential serious personal injury, unless these instructions are followed\ncarefully.\n\nFailure to properly install or operate the equipment in this manual could result in significant property damage,\nsevere injury, or death. It is the responsibility of the owner or user to ensure that the equipment described is\ninstalled and operated in compliance with this manual and other system component manuals, as well with all\napplicable national and local codes.\n\nThe flame sensor seals high pressures within the turbine. The union nut must be tightened to the specified\ntorque. Insufficient torque could result in combustion gases being released into the turbine compartment.\nThe window holds pressure. The union is only for mechanical attachment.\n\nThe Turbine Sensor and its accessories are designed to operate at extreme temperatures. Do not attempt to\nwork on this device until it has reached a safe handling temperature.\n\nThe fiber optic cable cannot be bent to a radius less than 6 inches or 15 cm.\n\nDo not install a flame sensor that has a cracked window, damaged threads, or one that has been disassembled.\n\nExplosion hazard. Do not connect or disconnect when energized.\n\fDIMENSIONS\n\n\n\n 3G-OTH-02793 (GE PART #304T9240P0001): Turbine flame sensor\n Turbine flame sensor head & amp - Electronics assembly\n High pressure, high temperature window\n Stainless steel high temperature union\n UV Enhanced quartz fiber optic (fully sheathed) assembly, hot & cold end connections\n Fiber optic length: 30 feet or 9.1 meter\n\n\n\n\n 2.00″ 1.33″ 1.99″ 2.14″\n 50.8 mm 33.8 mm 50.5 mm 54.3 mm\n Ø 2.50″\n Ø 63.5 mm\n\n\n\n\n 2.91″ 30′ Ø 1.38″\n 74 mm 9140 mm Ø 34.9 mm\n\n\n ≈ 30′ 9″\n 9370 mm\n\n\n\n STAINLESS STEEL, HIGH TEMPERATURE UNION\n\n\n\n\n 3/4″ NPT\n\n\n\n\n 1.93″ Hex 1.25″\n 49.0 mm 31.7 mm\n\n HIGH PRESSURE, HIGH TEMPERATURE WINDOW\n\n 5\n\f The Cool End.... The Lens Housing....\n\n 5 PIN MALE MIL-DTL-38999\n\n LENS\n\n\n\n\n Hazardous area requirements: Det-Tronics portable turbine sensor\n The plastic “Loc Fast” retainers (supplied) must be installed UV test lamp\n over the electrical connector. Specifically designed, intrinsically safe and portable,\n battery operated source of ultraviolet radiation, emitting\n a wide band of UV radiation corresponding to the res-\n ponse of the turbine sensor.\n\n\n\n\n High temperature electrical cable & backshell with exterior\n cable braid\n\n\n\n\n© Fireye 2024\n\fSPECIFICATIONS\n\n 3G-OTH-02793\nGE PART # 304T9240P0001\nService FLAME SENSOR\nHazardous area classification Class I, Div 2 - Groups A,B,C & D, (North America). Ex II 3G Ex ec IIC T3 Gc (ATEX/IECEx)\nHousing material Stainless Steel 18-8 (304)\nMounting connection 3/4″ male NPT\nMin. operating temperature 32°F/0°C\nMin. storage temperature -40°F/-40°C\nMax. operating temperature hot end 617°F/325°C\nMax. operating temperature cool end 284°F/140°C\nHumidity 100%\nVibration Per IEC 60068-2-64, Stationary Installation, Category 3\nDetection principle Ultraviolet solid state sensor\nSensor Silicon Carbide Diode\nSensitivity 1nW/cm²@310nm\nOutput 4-20mA DC, current loop\nFlame Present Detection Time 175ms (typical < 75ms)\nFlame Failure Detection Time 175ms (typical < 75ms)\nPower supply 18-30 VDC\nReverse polarity protected YES\nElectrical connection 5-pin male MIL-DTL-38999 shell, size 15 series III hermetic, scoop proof\nSIL Rating SIL 3\nSIL Certificate EN61508\nUL Certificate UL 353, 5th Ed., Issue Date: 1994-09-23, Revision Date:…

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Fireye Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Fireye 3G-OTH-02793 Turbine Flame Sensor is a flame sensor designed for gas turbine applications. It is available for models including 3G-OTH-02793, 7FA, 9FA, 9FB, 7E, 9E, 6B, and 6FA. The sensor carries approvals including CE, Ex, Functional Safety UL Listed SIL 3, UKCA, and UL Listed.

Frequently Asked Questions

What is the Fireye 3G-OTH-02793 Turbine Flame Sensor used for?

The Fireye 3G-OTH-02793 Turbine Flame Sensor is used to detect ultraviolet flame in extreme high-pressure and hot environments, such as turbine generators at power generation facilities. It improves safety, reliability, and performance by replacing obsolete technologies. It is compatible with GE Frames 7FA, 9FA, 9FB, 7E, 9E, 6B, and 6FA.

What are the specifications of the Fireye 3G-OTH-02793?

The Fireye 3G-OTH-02793 responds to UV optical energy from 200-400 nanometers and provides a loop-powered 4-20 mA output representing flame brightness. It requires 18-30 VDC supply (nominal 24 VDC). Approvals include CE, Ex, Functional Safety UL Listed SIL 3, UKCA, and UL Listed. It is designed for GE Frames 6F, 7F, and 9F.

Where to buy the Fireye 3G-OTH-02793 in Singapore?

3G Electric supplies the Fireye 3G-OTH-02793 Turbine Flame Sensor to customers in Singapore. We handle logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this item. We source and deliver industrial equipment to support power generation applications.

How to install the Fireye 3G-OTH-02793 Turbine Flame Sensor?

Install the Fireye 3G-OTH-02793 by mounting the sensor so the sapphire window at the hot end faces the flame. Connect the white conductor to +24 VDC and the black conductor for the 4-20 mA signal return. Ensure the supply voltage is between 18-30 VDC. Fireye recommends setting a threshold of at least 5 mA to indicate flame on.

Used in

Common applications for Fireye
Power-plant auxiliary boiler — M-Series II controller with UV flame scanner, programmed for gas/oil switchover and flame-presence monitoring.
Refinery process heater — MP100E programmer module managing multi-stage ignition and flame-out shutdown interlocks on high-pressure burners.
Petrochemical facility thermal oxidizer — MAUV1T UV amplifier module processing scanner signal from high-temperature burner housings with immune-response filtering.
Large-scale industrial oven (metal treating) — M-Series II with remote reset capability and dual-fuel solenoid isolation for operator safety and burner protection.
Cogeneration plant fuel-gas burner — Fireye scanner and modular controller stack integrated into BMS with remote monitoring of flame status and controller fault codes.

Fireye Products

3G Electric supplies Fireye flame sensors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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