C7915A1010/U

Product Description

The C7915A Flame Detector includes a lead sulfide photocell that is sensitive to the infrared radiation emitted by the combustion of fuels such as natural gas, oil, and coal.
Features & Benefits:

• Particularly suitable for combination or dual-fuel applications.• When installed properly, can supervise the pilot flame and/ or the main burner flame.• Mounts easily on a standard 3/4 inch sight pipe.• The infrared sensor plugs into an electrical socket in the C7915A assembly and is field replaceable.• The lead sulfide photocell's sensitivity to infrared radiation is compatible with a wide range of flame supervisory applications.• Flexible metal cable protects and electrically shields the detector coaxial cables.• Accessories available include a heat block, seal-off adapter, reducer bushing, and orifice plate.• Immune to x-ray testing.

STANDARD MODELS

MODELS: See Table 6 for flame safeguard controls and associated amplifiers.

DETECTOR RESPONSE: Responds to infrared radiation with wavelengths between 0.75 and 1.0 micron.

LEAD SULFIDE PHOTOCELL: Photo conductor resistance decreases as incident radiant energy increases.

AMBIENT TEMPERATURE RATING: -40°F to 125°F (-40°C to 52°C) maximum at the lead sulfide photocell.

MOUNTING:

C7915A Mount-knurled collar with 3/4-14 NPSM internal threads for mounting on a standard 3/4 in. pipe (see Fig. 1). 32007255-001 Lead Sulfide Photocell-two leads for inserting into socket in C7915A

a With 0.125 in. (3.175 mm) diameter hexagonal orifice to reduce the detector field of view.

b To insulate the detector from sight pipe temperatures higher than -40°F-125°F (-40°C-52°C) and up to 250°F (121°C).

c To mount the detector on a 1/2 in. sight pipe, specifically to replace Fireye™ lead sulfide infrared flame detectors.  

WIRING CONNECTIONS

Nominal 48 in. (1.22 m) coaxial cables-rated for 194°F (90°C); terminated-one blue and one white. Coaxial cables enclosed in flexible metal cable-3/8 in. (9.6 mm) maximum outer diameter.

DIMENSIONS: See Fig. 1.

SIL 3 CAPABLE:

The C7915 when used with a R7852B Ampli-check amplifier in Relay Module EC7810A, 20A, 30A, 40L, 50A; RM7800[E,G,L,M], 30A, 38[A,B,C], 40[E,G,L,M] 50A, 90[A,B,C,D], 97[A,C], 98A is SIL 3 Capable in a properly designed Safety Instrumented System. See form number 65-0312 for Certificate Agreement.

APPROVALS:

Underwriters Laboratories Inc. listed: File No. MP268.Canadian Standards Association certified: Master file LR- 95329-1.

Factory Mutual approved.

Swiss Re (formerly Industrial Risk Insurers): acceptable.

IMPORTANT:

Caution, stickers, form 96-610, are included with the C7915A. Underwriters Laboratories Inc. requires that this sticker be placed on any junction box in which C7915A coaxial cables are connected. The sticker prohibits routing any other wiring through the junction box.

REPLACEMENT PARTS:

32007255-001 Lead Sulfide Photocell 50019469-001 Bushing with Focusing Lens 105061 Heat Block to insulate the detector from sight pipe temperatures higher than 125°F (52°C) and up to 250°F

(121°C).

390427A Reducer Bushing, to mount the detector on a 1/2 in. sight pipe; specifically to replace Fireye™ lead sulfide infrared flame detectors.

ACCESSORIES:

105172A Seal-Off Adapter; with glass window to prevent hot gases from reaching the lead sulfide photocell. 118367A Swivel Mount; provides adjustable positioning of the

C7915A.

Hookup Cable-R1298020; 2-wire, heat- and moisture-resistant, No. 20 AWG, Teflon (TFE) insulated; rated up to

400°F (204°C) for continuous duty; tested for operation up to 600 volts and breakdown up to 7500 volts.

BNSENS (Nanjing) Sensor Technology Co., Ltd. is located in Nanjing, China. It is a high-tech enterprise specializing in the development, manufacturing and trade of sensor products. The company has brought together a group of outstanding technical experts in various fields such as automation, electronics, machinery and computers. All employees of the company have college degrees or above. It adopts the world-class management and operation model and 6 sigma quality system. At present, the company's main products are pressure, liquid level, flow, current, switches, etc. The company's users are all over the country, and some products have been exported to Japan, South Korea and Southeast Asia.

Since its inception, the company has been based on the technical accumulation and management standards of American sensor giants. It is composed of senior engineers and managers who have served in multinational companies for many years, and has rapidly developed various pressure sensors, transmitters, liquid level, flow meters, pressure switches, digital meters, current sensors, proximity switches and other products. After years of unremitting efforts, it has become one of the leading suppliers in the domestic automation industry. Our pressure transmitters can achieve an accuracy of more than 3/10, 000. The products have been widely used in oil, natural gas, electricity, chemical industry, metallurgy, building materials, food, light industry, environmental protection, aerospace, tap water, municipal and other industries.

It is a sensor science and technology innovation company that masters the core technology of MEMS chips. The company has a research and development center in Minnesota, USA. The leader is Dr. Pan Hanjin, a famous scientist in the sensor industry. Dr. Pan Hanjin has been deeply involved in the sensor industry for more than 20 years and is an expert in the sensor industry.

The company has a number of ASIC chips independently developed, which are widely used in industrial, automotive, home appliance and other markets.

BNSENS (Nanjing) Sensing Technology Co., Ltd. is a strategic partner of Honeywell in China. The two parties proposed a plan of East serving East and jointly developed several sensors specifically for the Chinese market. These sensors will be widely used in intelligent manufacturing, Internet of Things, artificial intelligence, and smart home fields. These sensors include: Magnetic sensors, temperature sensors, humidity sensors, force sensors, fire water pressure sensors, equipment vibration sensors, human body status monitoring sensors, motion sensors, etc.

History of BNSENS Company:

BNSENS is a company focusing on sensors, instruments, and electronic components. We are a young company, founded in 1999, just 25 years old, and we are still growing.

1999: The company's first pressure sensor was launched, mainly for the petroleum and petrochemical industries.

2002: The company expanded its product line and launched temperature sensors

2005: Started producing high-precision pressure sensors for the test and measurement market

2006: Became an official authorized agent of Honeywell

2009: Introduced the Six Sigma management system, and the product qualification rate was greatly improved

2010: Became a supplier of Emerson

2011: We started selling SICK sensors

2014: Introduced the sensor production line from Germany, developed more industrial control sensors, and cooperated with TSMC

2015: Cooperated with Siemens in Vietnam

2017: The factory moved to Nanjing High-tech Zone

2019: Became a national high-tech enterprise in China

2023: We started selling products from Infineon and Rohm

BNSENS, The Future Starts Here.