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CU-123
February 27, 2024
NED-GEAC-2000
TURBINE FLAME SENSOR
DESCRIPTION
This document describes the Fireye Turbine Flame Sensor for turbine flame monitoring applications, its installation
and setup. The Turbine Flame Sensor responds to Ultraviolet optical energy from the flame (200-400 nanometers)
and has a loop powered 4-20mA output representing flame brightness from a very low level. It is not sensitive to
visible and IR emissions from hot walls. The Fireye design basis is a total separation of the optical sensing device
from the turbine without the need for expensive water or pressurized air cooling systems.
APPLICATION
The Fireye Turbine Sensor is designed to sense flame in extreme high pressure and hot environments such as those
found on turbine generators at power generation facilities. The sensor can be used to improve the safety, reliability
and performance by replacing obsoleted and outdated technologies. The device has been developed and tested for
GE Frames 6F, 7F and 9F.
OPERATION
At the hot end is a sapphire glass window to protect the lens and fiber optic bundle from extreme pressure and
temperature. The fiber optic bundle transmits the UV light to the electronic assembly on the cool end, which amplifies
the signal and converts it to a 4-20mA output. The sensor is a loop powered 4-20mA device. The sensor monitoring
electronics needs to provide a voltage between 18 and 30 VDC and the sensor will vary the current between 4 and
20mA depending upon the turbine optical signal. Nominal voltage is 24 VDC. With no optical signal from the flame
output will be 4mA as a minimum. Because of variation in fuel, sighting, turbine styles, etc. the output level for a
FLAME ON is a site decision. Fireye recommends that at least 5 mA be used as a threshold level to detect FLAME
ON. The cable has multiple conductors and uses white for +24 VDC and black for the return of the 4-20mA signal.
© Fireye 2024
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Summary of Contents for Fireye NED-GEAC-2000
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Page 1: Description
4mA as a minimum. Because of variation in fuel, sighting, turbine styles, etc. the output level for a FLAME ON is a site decision. Fireye recommends that at least 5 mA be used as a threshold level to detect FLAME ON. - Page 2 © Fireye 2024...
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Page 3: Table Of Contents
TABLE OF CONTENT DESCRIPTION ..........................1 APPLICATION ..........................1 OPERATION ..........................1 WARNING ............................ 4 DIMENSIONS ..........................5 SPECIFICATIONS ........................7 PART NUMBERS ......................... 9 PACKING ............................. 9 MECHANICAL INSTALLATION ....................10 WIRING DIAGRAM ........................12 OUTPUT ............................ 13 MAINTENANCE ......................... 14 LAST MINUTE RISK ANALYSIS (LMRA) .................. -
Page 4: Warning
WARNING The equipment described in this manual is capable of causing property damage, severe injury, or death. It is the responsibility of the owner or operator to ensure that the equipment described is installed, operated and commissioned in compliance with the manufacturer’s instructions and all applicable codes and regulations. When this equipment is fitted to an appliance, due regard must also be given to the requirements of that appliance. -
Page 5: Dimensions
DIMENSIONS NED-GEAC-2000 (GE PART #304T9240P0001): Turbine flame sensor Turbine flame sensor head & amp - Electronics assembly High pressure, high temperature window Stainless steel high temperature union UV Enhanced quartz fiber optic (fully sheathed) assembly, hot & cold end connections Fiber optic length: 30 feet or 9.1 meter... - Page 6 Specifically designed, intrinsically safe and portable, battery operated source of ultraviolet radiation, emitting a wide band of UV radiation corresponding to the res- ponse of the turbine sensor. High temperature electrical cable & backshell with exterior cable braid © Fireye 2024...
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Page 7: Specifications
SPECIFICATIONS NED-GEAC-2000 GE PART # 304T9240P0001 Service FLAME SENSOR Hazardous area classification Class I, Div 2 - Groups A,B,C & D, (North America). Ex II 3G Ex ec IIC T3 Gc (ATEX/IECEx) Housing material Stainless Steel 18-8 (304) Mounting connection 3/4″... - Page 8 362A 3342 P204 Service CABLE ASSEMBLY Shield ARMORED Voltage 18-30 VDC Temperature range -40°F/-40°C - 284°F/140°C Cable length 40 feet / 12.1 meter 60 feet / 18.1 meter 80 feet / 24.3 meter 100 feet / 30.4 meter © Fireye 2024...
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Page 9: Part Numbers
PART NUMBERS REFERENCE GE PART # DESCRIPTION NED-GEAC-2000 304T9240P0001 Turbine flame sensor with fiber optic length 30 feet / 9.1 meter, High pressure, high temperature window & union, US. 59-606-40 362A3342P001 High temperature electrical cable & prefabricated molded connector. 40 feet / 12.1 meter, US... -
Page 10: Mechanical Installation
The FIBER OPTIC BUNDLE should not be routed with any radius less than 6 inches (15 cm). Fireye recommends P-clamps or similar be installed every 3 feet (1 meter) to support the fiber optic bundle and avoid damage caused by vibration. - Page 11 2″ WRENCH FLAT HIGH PRESSURE WINDOW 1 1/16 ″ WRENCH FLAT ARROW POINTS TO THE HIGH PRESSURE SIDE WHICH MUST FACE THE TURBINE 3/4″ NPT FEMALE UNION LENS HOUSING OUTPUT CABLE CLAMP (BY OTHERS) CONNECTOR SECURE FIBER STAINLESS SHEATH OPTIC BUNDLE Ø...
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Page 12: Wiring Diagram
Do not use excessive torque when mating as connector damage may result. With power off, wire the cable to the junction box. • BLACK: -24 VDC (negative) A • WHITE: +24 VDC (positive) B • GREEN WIRE: Grounding C CHECK © Fireye 2024... -
Page 13: Output
OUTPUT CONDITION BRIGHTNESS ANALOG OUTPUT FLAME OFF DARK < 4.25mA FLAME ON 1nW/cm²@310nm between 4.90mA & 5.85mA Maximum flame > 500nW/cm² < 20mA • A current less than 4mA or greater than 20mA are considered error conditions. • The response time is less than 175ms. (Typically < 75ms) -
Page 14: Maintenance
UV400 eye protection blocks UV-A, UV-B and UV-C but does not pro- tect against blue light (400-500nm) which is suspected of being res- ponsible for macular degeneration. We recommend the use of welding glasses for complete protection. © Fireye 2024... -
Page 15: Last Minute Risk Analysis (Lmra)
LAST MINUTE RISK ANALYSIS (LMRA) Following items serve as a guideline to complete the LMRA in place and do not overrule any local regulations. Danger of hot surface A hot surface can burn skin, either by contact or from radiated heat. The eyes are particularly sensitive to burning, especially from UV light radiation. -
Page 16: Maintenance Procedure
2.5 turns, approximately. Make sure the arrow points towards the turbine. Repeat the visibility check of the flame by looking through the high pressure, high temperature window. USE EYE PROTECTION! Repeat the cleaning procedure if necessary. CHECK © Fireye 2024... - Page 17 STEP 3: TEST TURBINE SENSOR FUNCTIONALITY Place the turbine sensor in a comfortable position to prevent it from falling, within reach of the electrical connector Re-connect the electrical connector to power the turbine sensor. Be sure to wear proper EYE PROTECTION. Check all items for possible damages and/or discrepancies.
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Page 18: Label
UL Certificate UL 353, 5th Ed., Issue Date: 1994-09-23, Revision Date: 2011-11-08 • CSA Certificate C22.2 NO. 24-15, 9th Ed. Issue Date: 2015-01-01 • CE: EUROPEAN COMMUNITY COUNCIL DIRECTIVE 2014/30/EU • UKCA • ATEX: ITS-I ATEX38197X • IECEx: IECEx ETL 23.0046X © Fireye 2024... -
Page 20: Notice
WARRANTIES, EXCLUSIVE REMEDIES, AND LIMITATION OF DAMAGES Fireye guarantees for 24 months from the date of manufacture to replace, or at its option, to repair any product or part thereof which Fireye, in its sole discretion, deems to be defective in material or workmanship or which otherwise fails to conform to the description of the product on the face of its sales order.
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