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C7061M MINIATURE DYNAMIC SELF-CHECK ULTRAVIOLET FLAME DETECTOR

65-0304—05

2

ORDERING INFORMATION

When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the 

TRADELINE® Catalog or price sheets for complete ordering number. If you have additional questions, need further information, 

or would like to comment on our products or services, please write or phone:

1.

Your local Honeywell Environmental and Combustion Controls Sales Office (check white pages of your phone directory).

2.

Honeywell Customer Care

1885 Douglas Drive North

Minneapolis, Minnesota 55422-4386

3.

http://customer.honeywell.com or http://customer.honeywell.ca

International Sales and Service Offices in all principal cities of the world. Manufacturing in Belgium, Canada, China, Czech 

Republic, Germany, Hungary, Italy, Mexico, Netherlands, United Kingdom, and United States.

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:

C7061M1008 - with 8 foot (2.4m) leadwires.

C7061M1016 - With connector.

Electrical Ratings:

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): 

-4°F to 175°F (-20°C to 80°C) using part no. 129464N UV 

Sensing Tube.

Storage Temperature Ratings: 

-4°F to 158°F (-20°C to 70°C).

Housing:

Violet, plastic cover.

Housing protection is IP66. Similar to Nema 4 (indoor, outdoor 

protection; rain-tight, dust-tight, hose-directed water pro-

tection). 

Pressure Rating of Quartz Viewing Window:

50 psi (350 kPa)

Mounting: 

Threaded collar (internal 1-11 1/2 NPSM) internal threads for 

attaching to a 1 inch sight pipe.

Wiring Connections: (C7061M1008)

Leadwire: NEC Class 1 color coded. 

Length: 8 ft (2.4m).

Threaded Leadwire Faceplate Opening:  

1/2-14 NPSM internal threads for attaching conduit (avoid 

overtightening that could crack the housing).

Connector: 

C7061M1016: Molex Woodhead 1R5006A20A120 (formerly 

Brad Harrison

®

 Type 41310).

Dimensions:  

See Fig. 1.

Weight:

1.4 lbs (630 g).

Approvals:

Underwriters Laboratories Inc. Listed: MP268, Guide MCCZ2, 

MCCZ8

Factory Mutual approved.

SwissRe (formerly Industrial Risk Insurers) Acceptable.

Replacement Parts:

129464N Ultraviolet Sensing Tube

Accessories:

123539 Antivibration Mount.

204341 Mirror Assembly.

105172C Pressure Sealoff adapter (3/4 in. npt)

118367 Swivel Mount

136733 Heat Block (3/4 in. npt)

SIL 3 Capable:

The C7061M when used with a R7861 Self Check amplifier in 

relay module EC7810A, 20A, 30A, 40L, 50; RM7800 [E, G, 

L, M], 30A, 38[A,B,C], 40[E,G,L,M], 50A, 88A, 90[A,B], 

97[A,C], 98A is SIL 3 Capable in a properly designed 

safety instrumented system.  See Form number 65-0312 

for certificate agreement.

Summary of Contents for C7061M

Page 1: ...ing tube is field replaceable Threaded conduit fitting and color coded leadwires allow rapid electrical installation C7061M1016 uses Molex Woodhead 1R5006A20A120 formerly Brad Harrison Type 41310 connector Two flame detectors can be wired in parallel to reduce nuisance shutdowns in difficult flame sighting applications 4 F 20 C to 175 F 80 C ambient temperature Incorporates UV sensor tube checking...

Page 2: ... unit that delivers the necessary voltages to operate the tube and shutter Ambient Operating Temperature Ratings Outside the Case 4 F to 175 F 20 C to 80 C using part no 129464N UV Sensing Tube Storage Temperature Ratings 4 F to 158 F 20 C to 70 C Housing Violet plastic cover Housing protection is IP66 Similar to Nema 4 indoor outdoor protection rain tight dust tight hose directed water pro tectio...

Page 3: ...nditions could result 2 All wiring must be NEC Class 1 line voltage 3 The C7061 is powered from the Flame Safeguard unit that delivers the necessary voltages to operate the sensing tube and shutter 4 Sight the detector so it does not respond to ignition spark 5 On multiburner installations each detector must respond only to the flame of the burner it is supervising 6 Do not connect more than two C...

Page 4: ...field of view If the temperature of the hot refractory causes the flame relay in the flame safeguard control to pull in re aim the sight pipe so the detector views a cooler area of the refractory Ignition spark is an intense source of ultraviolet radiation When installing the detector make sure it does not respond to ignition spark by following the Ignition Spark Response Test listed on page 9 Sin...

Page 5: ...e defined as locating all flame detectors so that each detector responds only to the flame of the burner it is supervising In multiple burner systems not every detector can be positioned so its line of sight does not intercept flames from other burners For example this situation occurs in front fired boiler furnaces having more than one row of burners or in multilevel opposed fired furnaces where ...

Page 6: ...tilate the sight pipe to cool the detector or to clear a viewing path through UV radiation attenuating material For a negative pressure combustion chamber drilling a few holes in the section of the sight pipe outside of the combustion chamber allows air at atmospheric pressure to flow through the sight pipe and into the chamber A perforated pipe nipple between the sight pipe and the detector can a...

Page 7: ...on source in the event of a seal leakage or diaphragm failure 1 All wiring must comply with applicable local electrical codes ordinances and regulations Use NEC Class 1 wiring 2 Keep the flame signal leadwires as short as possible from the flame detector to the terminal strip or wiring subbase Capacitance increases with leadwire length reducing the signal strength The maximum permissible leadwire ...

Page 8: ...the sighting position of the detector for optimum flame signal It is suggested that a volt ohm meter with a minimum sensitivity of one megohm volt and a zero to five or ten Vdc scale be used for R7861 Amplifier flame signal measurements Measure the flame signal as illustrated in Fig 8 Be careful to make the proper connections of positive red meter lead to positive control jack and negative black m...

Page 9: ...iew Continue adjustments until the flame signal due to ignition spark is less than the flame signal values indicated in step 2 Response to other Ultraviolet Radiation Sources Some sources of artificial light produce small amounts of ultraviolet radiation Under certain conditions an ultraviolet detector responds as if it is sensing a flame Do not use an artificial light source to check the response...

Page 10: ...e the plug in amplifier Then recheck the flame signal 7 Replace the ultraviolet sensing tube see Service on page 10 Then recheck the flame signal 8 Remove detector from the sight pipe and sight it on a UV source and note the flame LED on the 7800 Series device 9 If you cannot yet obtain a meter reading replace the detector IMPORTANT At the completion of Troubleshooting be sure to perform the Adjus...

Page 11: ...f ultraviolet rays with an orifice ring or the like If there is too much ultraviolet radiation it can penetrate the tube unit even when the shutter is closed causing faulty operation Inspection and Adjustment After replacing the UV sensing tube perform a pilot turndown test an ignition spark response test and a safety shutoff test to verify proper functioning of the tube unit IMPORTANT Do not put ...

Page 12: ...AME DETECTOR Automation and Control Solutions Honeywell International Inc 1985 Douglas Drive North Golden Valley MN 55422 customer honeywell com U S Registered Trademark 2013 Honeywell International Inc 65 0304 05 M S Rev 07 13 Printed in United States ...

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