The C7961E1014/U, C7961F1004/U are dynamic self-checking flame detectors for sensing the ultraviolet radiation generated by the combustion of gas, oil, or other fuels.
Features & Benefits:
• Oscillating shutter interrupts ultraviolet radiationreaching the UV sensor at a 3 Hz rate to provide the UV sensor tube checking function. The 7800 Series Control conducts an additional shutter test every 5 seconds.
• Detectors can be mounted horizontally, vertically or atany other angle.
• Quartz viewing window is field replaceable.
• Threaded conduit fitting and color-coded leadwires allow rapid electrical installation.
• 3/4 in. and 1 in. NPT mounting models available.
• Models available with Molex Woodhead 1R5006A20A120 (Formerly Brad Harrison® 41310)connector.
•A swivel mount is available to facilitate flame sighting.
•-40°F (-40°C) rated ultraviolet sensing tube.
• Incorporates UV sensor tube checking feature; usedwith R7851C Dynamic Self-check Amplifiers.
• High pressure 50 psi (345 kPa) quartz viewing window, magnifying lens and antivibration mount are available as accessories.
• Housing meets NEMA 4 enclosure standards (C7961E).
• Protective heat block built into mounting flange.
• C7961E, F are immune to x-ray. C7961F:
• Housing designed to be explosion-proof and Underwriters Laboratories Inc. listed for use in hazardous locations; Class I, groups C and D; and Class II, groups E, F and G.
• Viewing window rated for 100psi (690 kPa).
IMPORTANT
The specifications in this publication do not include normal manufacturing tolerances. Therefore, this unit may not exactly match the specifications listed. This product is tested and calibrated under closely controlled conditions, and minor differences in performance can be expected if those conditions are changed.
Models:
C7961E Dynamic Self-Check Ultraviolet Flame Detector. C7961F Dynamic Self-Check Ultraviolet Flame Detector. (Same as C7961E except with explosion-proof housing for use in hazardous locations).
Electrical Ratings:
Voltage and Frequency: 120 Vac (-15%, +10%), 50/60 Hz.
Ambient Operating Temperature Ratings (Outside the Case): -40°F to 175°F (-40°C to 80°C).
Storage Temperature Ratings: -60°F to 175°F (-50°C to 80°C).
Housing:
C7961E: Violet, cast-aluminum cover. Separate mounting flange (with heat block) and faceplate provide heat insulation and sealoff.
Meets NEMA 4 enclosure requirements (indoor, outdoor protection; rain-tight, dust-tight, hose-directed water protection).
C7961F: Explosion-proof, two-piece, violet, cast aluminum.
Pressure Rating of Quartz Viewing Window:
C7961E: 20 psi (138 kPa), see Replacement Parts. C7961F: 100 psi (690 kPa).
Pressure Rating of Quartz Focusing Lens: 20 psi
(138 kPa), see Accessories.
Mounting: C7961E: Mounting flange with 3/4 in. NPT or 1 in.
NPT internal threads for attaching to sight pipe.
C7961E1014, C7961E1022: Mounting flange with 1 inch NPT internal threads for attaching to sight pipe.
C7961F: Pipe union with 1 inch NPT internal threads for attaching to sight pipe.
Wiring Connections:
Leadwire: Models with NEC Class 1 color coded (C7961E1006, C7961E1014). Length: 8 ft (2.4m).
Threaded Leadwire Faceplate Opening: 1/2-14 NPSM internal threads for attaching conduit.
Connector: Models with Molex Woodhead 1R5006A20A120 (formerly Brad Harrison® 41310 Connector) (C7961E1022, C7961E1030).
Dimensions: See Fig. 1.
Weight:
C7961E: 2.6 lbs (1.2 kg).
C7961F: 14.5 lbs (6.6 kg).
SIL 3 Capable:
The C7961 when used with a R7851C self-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 Number MP268, Guide Number MCCZZ.
Canadian Standards Association Certified: Pending. Factory Mutual Approved: 14740.01.
SwissRe (formerly Industrial Risk Insurers) Acceptable.
C7961F: For use in hazardous locations; Class I, Groups C and D; Class II, Groups E, F, and G; File no. E34649.
Replacement Parts:
190971G Shutter Assembly.
C7961E:
114372 Quartz Viewing Window; rated for 20 psi (138 kPa).
114465 Gasket, silicone rubber; for installing viewing window (three required).
120739 Gasket, fiber-neoprene; heat insulation and seal-off for mounting flange.
C7961F:
122037 Quartz Viewing Window; rated for 100 psi (690 kPa).
Accessories:
C7961E:
118367A Swivel Mount.
123539 Antivibration Mount.
122748 Quartz Viewing Window, rated for 50 psi (345 kPa).
124204 Quartz Focusing Lens, rated for 20 psi (138 kPa); increases the detector-sensed ultraviolet radiation.
120934 Mounting Flange, aluminum, with 3/4 inch NPT internal threads for attaching to sight pipe.
124198 Mounting Flange, aluminum, with 1 inch NPT internal threads for attaching to sight pipe.
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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.