C7061A 1020

Product Description

The C7061A,F are dynamic self-checking flame detectors for sensing the ultraviolet radiation generated by the combustion of gas, oil, or other fuels.

FEATURES
• Oscillating shutter interrupts ultraviolet radiation reaching the UV sensor 12 times per minute to provide the UV sensor tube checking function. Amplifier circuitry components are checked from the microprocessor in the 7800 Series Control.
• Detectors can be mounted horizontally, vertically or at any other angle. The self-checking C7061 models require faceplate alignment and have integral locating reference points to assure proper shutter mechanism operation.
• Ultraviolet radiation sensing tube and quartz viewing window are field replaceable.
• Threaded conduit fitting and color-coded leadwires allow rapid electrical installation.
• Models available using Brad Harrison® 41310 connector.
• Two flame detectors can be wired in parallel to reduce nuisance shutdowns in difficult flame sighting applications.
• -40°F (-40°C) rated ultraviolet sensing tube.
• Incorporates UV sensor tube checking feature; used with R7861 Dynamic Self-check Amplifiers.
• Housing meets NEMA 4 enclosure standards (C7061A).
• Protective heat block built into mounting flange. C7061F
• 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). C7061F C7061A

SPECIFICATIONS
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:
C7061A Dynamic Self-Check Ultraviolet Flame Detector.
C7061F Dynamic Self-Check Ultraviolet Flame Detector. (Same as C7061A except with explosion-proof housing for use in hazardous locations).

Electrical Ratings:
Voltage and Frequency:
The C7061 is powered from the Flame Safeguard unit that delivers the necessary voltages to operate the tube and shutter.

Ambient Operating Temperature Ratings
(Outside the Case): -40°F to 175°F (-40°C to 80°C) using part no. 129464N UV Sensing Tube. Storage Temperature Ratings: -60°F to 175°F (-50°C to 80°C).

Housing:
C7061A:
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). Optional water jacket available; see Accessories. C7061F: Explosion-proof, two-piece, violet, cast aluminum.

Pressure Rating of Quartz Viewing Window: C7061A: 20 psi (138 kPa), see Replacement Parts. C7061F: 100 psi (690 kPa).

Pressure Rating of Quartz Focusing Lens: 20 psi (138 kPa), see Accessories

Mounting:
C7061A: Mounting flange with 3/4 NPT internal threads for attaching to sight pipe.
C7061A1046: Mounting flange with 1 inch NPT internal threads for attaching to sight pipe.
C7061F: Pipe union with 1 inch NPT internal threads for attaching to sight pipe.

Wiring Connections: Leadwire: NEC Class 1 color coded. Length: 8 ft (2.4m).

Threaded Leadwire Faceplate Opening: 1/2-14 NPSM internal threads for attaching conduit.

Connector: C7061A1038 and C7061A1046: Brad Harrison® 41310.

Weight:
C7061A: 2.6 lbs (1.2 kg).
C7061F: 14.5 lbs (6.6 kg).

Serviceability:
C7061A: Field replaceable ultraviolet sensing tube viewing window, coil and shutter assembly gaskets.
C7061F: Field replaceable self-checking coil and shutter assembly.

SIL 3 Capable:
The C7061A or F when used with a R7861 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: Master File LR95329-1. Factory Mutual Approved: 14740.01. SwissRe (formerly Industrial Risk Insurers) Acceptable. C7061F: For use in hazardous locations; Class I, Groups C and D; Class II, Groups E, F, and G; File no. E34649.

Replacement Parts: All Models: 129464N Ultraviolet Sensing Tube; -40°F (-40°C).

a Shutter operation of the C7061A causes fluctuations in the voltage reading. Read the average stable voltage, disregarding the peaks. b Shutter operates at 12 cycles per minute.
2. Start the burner and run through the Ignition period. Ignition spark should occur, but the flame LED must not light. The flame signal should not be greater than 0.25 Vdc.
3. If the flame relay does pull in, reposition the detector farther from the spark, or relocate/resight the detector to eliminate/reduce the detector response to reflected UV radiation. It may be necessary to construct a barrier to block the ignition spark from the detector view. Continue adjustments until the flame signal due to ignition spark is less than the flame signal values indicated in step 2
 

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.