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1、PRODUCT DATA60-2026-10? U.S. Registered TrademarkCopyright ? 2000 Honeywell ? All Rights Reserved C7027A, C7035, C7044A, C7927AMinipeeper? Ultraviolet Flame DetectorsAPPLICATIONThe C7027A, C7035A, C7044A and C7927A Minipeeper? Ultraviolet Flame Detectors detect the ultraviolet radiation emitted by c
2、ombustion flames. The flame detectors are used with Honeywell flame safeguard controls to provide flame supervision for gas, oil, or combination gas-oil burners.FEATURES?C7027A, C7035A, and C7044A Flame Detectors are used with R7249A, R7290A, R7749B and R7849A,B Amplifiers and the appropriate Honeyw
3、ell controls.?C7044A may also be used with the following 50 Hz Honeywell combustion controls/amplifiers:R4341/R7323R4343/R7323R4344/R7323?C7027A has an integral collar threaded (internal 1/2-14 NPSM) for mounting on a one-half-inch sight pipe.?C7035A has an integral collar threaded (internal 1-11-1/
4、2 NPSM) for mounting on a one-inch sight pipe.?C7035A housing meets Underwriters Laboratories Inc. requirements for rain tightness and complies with NEMA enclosure standards, types 4 and 4X.?C7044A mounts with a two screw bracket. The UV sensor tube is enclosed in a stainless steel housing.?C7044A h
5、as the capability of side or end viewing in flame monitoring applications.?Because of their compact size, the C7027A and C7044A are particularly suitable for blast tube mounting.?Properly installed, the C7027A and C7035A are pressure rated for 5 psi.?C7035A ultraviolet radiation sensor tube is field
6、 replaceable.?Two C7027A, C7035A or C7044A Flame Detectors can be wired in parallel for difficult flame sighting installations.?C7927A is used with only the R7851B Flame Amplifier and the appropriate Honeywell controls.?C7927A has an integral collar threaded (internal 1/2-14 NPSM) for mounting on a
7、one-half inch sight pipe.C7027AC7035AC7044AC7927AContentsApplication .1Features .1Specifications .2Ordering Information .2Installation .4Wiring (All ModelsFig. 10) .8Adjustments and Checkout .9Troubleshooting .12Maintenance .12名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - -
8、 - - 第 1 页，共 12 页 - - - - - - - - - MINIPEEPER? ULTRAVIOLET FLAME DETECTORS60-2026 102ORDERING INFORMATIONWhen 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 ad
9、ditional questions, need further information, or would like to comment on our products or services, please write or phone:1.Your local Home and Building Control Sales Office (check white pages of your phone directory).2.Home and Building Control Customer RelationsHoneywell, 1885 Douglas Drive NorthM
10、inneapolis, Minnesota 55422-4386 (800) 328-5111In Canada Honeywell Limited/Honeywell Limite, 35 Dynamic Drive, Scarborough, Ontario M1V 4Z9.International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France, Germany, Japan, Mexico, Nethe
11、rlands, Spain, Taiwan, United Kingdom, U.S.A.SPECIFICATIONSFig. 1. Installation dimensions of C7027A in in. (mm).C7027A Minipeeper? Ultraviolet Flame Detector:Ambient Operating Temperature Ratings: 0F to 215F (-18 C to 102C), or -40F to 215F -40C to +102 C), depending on model.Maximum Pressure Ratin
12、g: 5 psi (34.5 kPa).Mounting: Collar with 1/2-14 NPSM internal threads for mounting on a 1/2 in. sight pipe.Wiring Connections: Two 6 ft 1.83 m, color-coded, NEC Class 1 leadwires, rated for 221F (105 C). (C7027A1064 has 24 ft 7.32 m leadwires.) Rear of detector has a clamp type connector for 1/2 in
13、. flexible metallic conduit. (Models are available with 1/2 in. internally threaded spud connector instead of the clamp). C7027A1114 has 44 in. (1.118 m) leadwires and 22 in. (558 mm) flexible conduit.Dimensions: See Fig. 1.Replacement Part: 129685 Flange Gasket. NOTE: The ultraviolet radiation sens
14、ing tube is not field replaceable.Accessory: 136733 Heat Block, laminated plastic, insulating the flame detector from sight pipe temperatures up to 266F (130 C), 1/2-14 NPSM external threads on one end and 1/2-14 NPSM internal threads on the other end (see Fig. 8). Included with C7027A1080.390427B B
15、ushing, for mounting to 3/8 in. sight pipe. Included with C7027A1080.Fig. 2. Installation dimensions of C7035A in in. (mm).COLLAR WITH 1/2-14 NPSM INTERNAL THREADS4 (102)6 FOOT (1.83 METER)LEADWIRES (2)M1943DC7027A1064 HAS 24 FOOT (7.32 METER) LEADWIRES.C7027A1114 HAS 44 IN. (1.118 M) LEADWIRES WITH
16、 22 IN. (558 MM) FLEXIBLE CONDUIT.MODELS AVAILABLE WITH SPUD CONNECTOR (1/2-14 NPSM INTERNALTHREADS) INSTEAD OF CLAMP TYPE CONNECTOR.1223-1/2 (89)1-1/16(27)C702711/2-14 NPSMINTERNAL THREADS22 (51)COLLAR WITH1 11-1/2 NPSMINTERNALTHREADS11DIN APPROVED C7035A1064 HAS 1-11 BSP.P1 INTERNAL MOUNTING THREA
17、DS.DIN APPROVED C7035A1064 HAS 1/2-14 BSP-F INTERNAL MOUNTING THREADS.C7035A1056 HAS 12 FOOT (3.66 METER) LEADWIRES.23INSERTION DEPTH6 FOOT 1.83 METERLEADWIRES (2)3M1945C2-5/8 (67)1-1/2(38)31/32(25)4-1/8 (105)1-3/16(30)C7035名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - -
18、- 第 2 页，共 12 页 - - - - - - - - - MINIPEEPER? ULTRAVIOLET FLAME DETECTORS360-2026 10C7035A Minipeeper? Ultraviolet Flame Detector:Flame Detection: End viewing.Ambient Operating Temperature Ratings: 0 F to 250 F (-18 C to +121 C), or -40 F to 250 F (-40 C to +121 C), depending on model.Maximum Pressur
19、e Rating: 5 psi (34.5 kPa).Mounting: Collar with 1-11-1/2 NPSM internal threads for mounting on a 1 in. sight pipe. (The DIN approved C7035A1064 has 1-11 BSP.P1 threads.)Wiring Connections: Two 6 ft. 1.83 m, color-coded NEC Class 1 leadwires rated for 302 F (150 C). One model is available with 12 ft
20、. (3.66 m) leadwires. Rear of detector has 1/2-14 NPSM internal threads for connecting to a conduit. The DIN-approved C7035A1064 has 1/2-14 BSP-F threads.C7035A1056 has 12 ft (3.66 m) leadwires. C7035A1080 leadwire is rated for 600 F (204 C).Dimensions: See Fig. 2.Replacement Parts:129808 Flange Gas
21、ket.129464M Ultraviolet Sensing Tube, 0 F to 250 F (-18 C to +121 C).129464N Ultraviolet Sensing Tube, -40 F to +250 F (-40 C to 121 C).C7027A AND C7035A:Approvals:Underwriters Laboratories Inc. listed: File No. MP268.Canadian Standards Association certified: Master Report LR 95329-1.Factory Mutual
22、approved.Industrial Risk Insurers acceptable.DIN approved models: C7027A1056, C7035A1049, C7035A1064.Accessory: 118367A Swivel Mount; provides adjustable positioning of the C7027A or C7035A.Fig. 3. Installation dimensions of C7044A in in. (mm).C7044A Minipeeper? Ultraviolet Flame Detector:Flame Dete
23、ction: Housing has two openings to permit either side or end viewing. Side viewing is 1/8 as sensitive as end viewing.Mounting: Bracket (included in 4074BVK Bag Assembly), secured by two 8-32 RHIS (European M-4) screws (not included).Wiring Connections: Two 6 ft. (1.83 m) color-coded NEC Class 1 lea
24、dwires. Rear of detector has a clamp type connector for 1/2 in. flexible metallic conduit.Dimensions: See Fig. 3.C7927A Minipeeper? Ultraviolet Flame Detector:Ambient Operating Temperature Ratings:C7927A1016 (U.S. Version): -40 F to +200 F (-40 C to +93 C).C7927A1008 (European Version): -4 F to +140
25、 F (-20 C to +60 C).Storage Temperature Rating: -20 F to +120 F (-28 C to +49 C).Maximum Pressure Rating: 5 psi 34.5 kPa).Mounting: Collar with 1/2-14 NPSM internal threads for mounting on a 1/2 in. (13mm) sight pipe.Wiring Connections: Two four-foot (1.2 meter) color-coded NEC Class 1 leadwires. Re
26、ar of detector has a clamp-type connector for 1/2 in. (13mm) flexible metal conduit.Dimensions: See Fig. 4 and 5.Approvals:Underwriters Laboratories Inc. (UL): Pending.Factory Mutual (FM): Pending.IAS: Pending.MOUNTING BRACKET6 FOOT 1.83 METERLEADWIRES (2)M1944B3-5/8 (92)1/2 (13)9/16(14)7/8(22)3/8(1
27、0)1-27/64(36)C7044名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 3 页，共 12 页 - - - - - - - - - MINIPEEPER? ULTRAVIOLET FLAME DETECTORS60-2026 104Fig. 4. Installation dimensions of C7927A1016 (U.S.A. version) and C7927A1008 (European version) in in. (mm).INSTALLATIONWh
28、en Installing This Product.1.Read these instructions carefully. Failure to follow them could damage the product or cause a hazardous condition.2.Check the ratings given in the instructions and on the product to make sure the product is suitable for your application.3.Installer must be a trained, exp
29、erienced, flame safeguard control technician.4.After installation is complete, check out product operation as provided in these instructions.Disconnect power supply before beginning installation to prevent electrical shock and equipment damage. All wiring must comply with applicable electrical codes
30、, ordinances and regulations. Use NEC Class 1 wiring.IMPORTANTUltraviolet radiation sensing tubes have a life expectancy of 40,000 hours of continuous use within the flame detectors specified ambient temperature and voltage ratings. Wearout of an ultraviolet radiation sensing tube results in failure
31、 of the UV sensor to properly discriminate between flame conditions.The C7027A, C7035A and C7044A Flame Detectors should only be used on burners that cycle on/off periodically or, in the absence of cycling, are periodically checked for proper operation.Recommended industry standards for the frequenc
32、y of sensor checks, either through cycling (employing safe-start check methods) or periodic maintenance, vary between once every ten seconds and once every week, depending on the standard used and the application needs.Consult the equipment manufacturer or the governing standard for recommendations
33、about frequency of checks.Controls incorporating safe-start checks, and sensors and controls employing constant check means are available from Honeywell. See your Honeywell representative for specific information.4 FOOT (1.2 METER)LEADWIRES (2)M177833-1/4 (82)3-3/4 (95)1(25)C7927A10163-11/16(94)1 (2
34、5)6-1/2 FT. (1.98M)M17784C7927A1008名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 4 页，共 12 页 - - - - - - - - - MINIPEEPER? ULTRAVIOLET FLAME DETECTORS560-2026 10WARNINGExplosion Hazard and Electrical Shock Hazard.Can cause serious injury, death or property damage.1.
35、The C7027A, C7035A , C7044A and C7927 Flame Detectors must be used with Honeywell flame safeguard controls (primaries, programmers, multiburner systems, and burner management systems). Using with controls not manufactured by Honeywell could result in unsafe conditions.2. Disconnect power supply befo
36、re beginning installation to prevent electrical shock or equipment damage, more than one disconnect may be involved.3. Read the installation instructions before starting the installation.4. All wiring must be NEC Class 1 (line voltage).5. The flame detector must be positioned so that it sights the f
37、lame and does not respond to the UV radiation emitted by sparks generated by a spark ignitor. The Q624A Solid-State Igniter may be useful in difficult installations.Basic Requirements For Ultraviolet Detector InstallationsAll flames emit ultraviolet radiation, invisible to the human eye but detected
38、 by the UV sensing tube. There are two important factors in UV detector installation:The detector must have a line-of-sight view of the flame.The detector must not be exposed to other sources of ultraviolet radiation, the most common being ignition spark. Other sources are listed in the next section
39、.Because it is necessary for the detector to actually see the flame, it is desirable to locate the detector as close to the flame as physical arrangement and temperature restrictions permit.Sighting requirements for different types of flame supervision are:1.Pilot flame only Sighting must be along t
40、he axis of the pilot flame. The smallest pilot flame that can be sighted must be capable of igniting the main burner (see Pilot Turndown Test, page 9).2.Main flame only Sighting must be at the most stable part of the flame for all firing rates.3.Pilot and main flameSighting must be at the junction o
41、f both flames.Other Radiation Sources Sensed By The UV DetectorExamples of radiation sources (other than flame) that could actuate the detection system are:1.Ultraviolet Sources:a.Hot refractory above 2800 F (1371 C).b.Spark.c.ignition transformers.d.welding arcs.e.lightning.f.Gas lasers.g.Sun lamps
42、.h.Germicidal lamps.2.Gamma Ray and X-ray Sources:a.Diffraction analyzers.b.Electron microscopes.c.Radiographic X-ray machines.d.High voltage vacuum switches.e.High voltage condensers.f.Radioscotopes.Except under unusual circumstances, none of these sources except hot refractory and ignition spark w
43、ould be present in or near the combustion chamber.The detector may respond to hot refractory above 2800 F (1371 C) if the refractory surface represents a significant percentage of the field of view of the detector. If the temperature of the hot refractory causes the flame relay (in the flame safegua
44、rd control) to pull in, re-position the sight pipe so the detector views a cooler area of the refractory. Ignition spark is a source of ultraviolet radiation. When installing the C7027A, C7035A, C7044A or C7927 Flame Detector, make sure it does not respond to ignition spark (see Ultraviolet Response
45、 Test, page 9.) If the installation is such that response to the ignition sparks cannot be avoided, the Q624A Solid-State Ignition Transformer may eliminate the ignition spark response. The Q624A, when properly installed, prevents C7027A, C7035A, C7044A and C7927 ignition spark response by alternate
46、ly activating the spark generator and the UV sensing tube.名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 5 页，共 12 页 - - - - - - - - - MINIPEEPER? ULTRAVIOLET FLAME DETECTORS60-2026 106Mounting a C7027A, C7927 or C7035ALocate the Sight PipeThe location of the sight pi
47、pe is the most critical part of the installation. A black iron pipe is recommended. Do not use a stainless steel or galvanized pipe because its internal surface blackens with use as deposits from the combustion chamber settle on it. Initially, its shiny internal surface reflects ultraviolet radiatio
48、n, which could result in a satisfactory flame signal, even though the pipe may be improperly located. As it blackens, less ultraviolet radiation is reflected and the flame signal may become marginal.Under optimum sighting conditions, the C7027A , C7927 and C7035A Flame Detectors can detect most comm
49、on gas and oil combustion flames at a distance of six feet. The critical factors in determining the flame-detector distance separation are the optimized flame signal (current or voltage) and the flame detector temperature. Other factors may be influential and are associated with the specific install
50、ation. For minimum flame signals, see Table 1 and for ambient operating temperatures, refer to Specifications, page 2.Use 1/2 in. pipe for a C7027 or C7927, and 1 in. pipe for a C7035. Since no two situations are likely to be the same, length and sighting angle of the pipe must be determined at the