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C7012A,C,E,F,G SOLID STATE PURPLE PEEPER® ULTRAVIOLET FLAME DETECTORS

3

60-2398-17

C7012G: Mounting flange with 3/4 inch NPT internal threads 

for attaching to sight pipe.

C7012C and F: Pipe union with 1 inch NPT internal threads for 

attaching to sight pipe.

Wiring Connections:

NEC Class 1 Color-Coded Leadwires:

Length: 8 feet (2.4 meters).

Number of Leadwires:

C7012A and C: 4.

C7012E and F: 6.

C7012G: 5.

C7012E1278 contains Brad Harrison™ Type 41310 

Connector. Mating connector (Brad Harrison™ Type 

41306N or 41307N not provided by Honeywell).

NOTE: Models designed to meet DIN (German) and 

BGC (British) requirements have an additional yellow/

green leadwire that is used as a separate ground 

wire.

Threaded Leadwire Opening in Faceplate:

C7012A and E: 1/2-14 NPSM internal threads for 

attaching conduit.

C7012C and F: 1/2-14 NPT internal threads for 

attaching pipe.

Dimensions: 

See Fig. 1 or 2.

Weight:

C7012A,E and G: Approximately 4.25 pounds (1.9 kg).

C7012C and F: Approximately 14.5 pounds (6.6 kg).

Serviceability:

All Models: Field-replaceable viewing window and ultraviolet 

sensing tube.

C7012E and F: Field-replaceable self-checking coil and shutter 

assembly.

NOTE: The 190971B Coil and Shutter Assembly can 

be used on existing C7012 Detectors with electron 

tubes, but the old 120625B Coil and Shutter 

Assembly cannot be used on solid state C7012 Flame 

Detectors.

Interchangeability:

Solid State C7012A,C,E,F and G Purple Peeper® Ultraviolet 

Flame Detectors are interchangeable with similar models of 

earlier C7012 Flame Detectors.

SIL 3 Capable:

The C7012E or F when used with a R7847C 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 (120 Volt 

Models Only):

C7012A and E (except C7012E1161 and E1278): 

File no. MP268.

C7012C and F: For use in hazardous locations; 

Class I, Groups C and D; Class II, 

Groups E, F and G; File no. E34649.

Canadian Standards Association Certified (120 Volt Models 

Only): C7012A and E: Master File LR95329-1.

Factory Mutual Approved: A,C,E and F models, 14740.01.

SwissRe (formerly Industrial Risk Insurers) Acceptable.

DIN: 220 volt models of European C7012E and G are designed 

to meet DIN requirements.

British Gas Corporation: 110 and 240 volt models of European 

C7012E and G are designed to meet British Gas 

Corporation requirements.

Replacement Parts:

All Models:

113228 Ultraviolet Sensing Tube.

191286 Ultraviolet Sensing Tube for -40°F 

(-40°C) operation.

114465 Gasket, silicone rubber; for installing viewing 

window (three required).

C7012A,E and G:

114372 Quartz Viewing Window; rated for 20 psi (138 kPa).

32004080-001 Electronic Assembly (C7012A)

191702 Electronic Assembly with Shutter (C7012E)

120739 Gasket, fiber-neoprene; heat insulation and 

seal-off for mounting flange.

C7012C and F:

122037 Quartz Viewing Window; rated for 100 psi (690 

kPa).

32004080-001 Electronic Assembly (C7012C).

191702 Electronic Assembly with Shutter (C7012F).

C7012E and F:

190971B Coil and Shutter Assembly for all models except 

220V/50 Hz.

Fig. 1. Dimensions of C7012A,E, and G in in. (mm).

Fig. 2. Dimensions of C7012C and F in in. (mm).

Accessories:

All Models:

118369 Bushing, galvanized iron, with 3/4 inch NPT internal 

threads on one end and 1 inch NPT external threads on 

the other end. For adapting a detector with 

MOUNTING FLANGE

1/2-14 NPSM

LEADWIRES

FACEPLATE

3/4Ð14 NPT 

M1962B

3-3/4

(95)

7-7/32

(183)

5-1/8 (130)

3-7/16

(87)

5-1/4 (133)

C7012A,C,E,F

1/2–14 NPT

5

(127)

2

(51)

1(25)

8

(203)

DIA.

9 (229)

2(51)

2     

(52)

1

16

1     

(38)

1
2

3 (76)

LEADWIRES

FACEPLATE

PIPE 
UNION

1–11 1/2 NPT

5/16–18 UNC–2B BY
7/16 (11) DEEP 
MOUNTING HOLES (2)

M1963

Summary of Contents for Purple Peeper C7012A

Page 1: ...n sensing tube and quartz viewing window are field replaceable Threaded conduit fitting and color coded leadwires allow rapid electrical installation Two flame detectors can be wired in parallel to reduce nuisance shutdowns in difficult flame sighting applications A swivel mount is available to facilitate flame sighting Models are available with a 40 F 40 C rating C7012A C G Designed for use with ...

Page 2: ...Ultraviolet Flame Detector For use in rectification type flame safeguard systems C7012C Solid State Purple Peeper Ultraviolet Flame Detector Same as C7012A except with explosion proof housing for use in hazardous locations C7012E Self Checking Solid State Purple Peeper Ultraviolet Flame Detector For use with R7247C and R7847C Dynamic Self Check Amplifiers C7012F Self Checking Solid State Purple Pe...

Page 3: ... System See form number 65 0312 for Certificate Agreement Approvals Underwriters Laboratories Inc Listed 120 Volt Models Only C7012A and E except C7012E1161 and E1278 File no MP268 C7012C and F For use in hazardous locations Class I Groups C and D Class II Groups E F and G File no E34649 Canadian Standards Association Certified 120 Volt Models Only C7012A and E Master File LR95329 1 Factory Mutual...

Page 4: ...or must respond only to the flame produced by the burner it is supervising 6 Do not connect more than two C7012 Flame Detectors in parallel Proper flame detector installation is the basis of a safe and reliable flame safeguard installation Refer also to the burner manufacturer instructions Carefully follow the instructions for the best possible flame detection application Basic Requirements The co...

Page 5: ... nearly parallel to the axis of the flame permitting the detector to view a large portion of the first 30 percent of the flame closest to the burner nozzle as illustrated in Fig 3 Low angle sighting permits the detector to view a greater depth of flame thus reducing the effects of instabilities in the flame pattern Also the environment near the burner nozzle is usually cleaner than at any other pa...

Page 6: ...med at the first 30 percent of Flame A where the ultraviolet radiation is most intense It sights the tip of Flame B but it is not aimed at the first 30 percent of Flame B where UV is intense Detector A is repositioned to assure maximum response to Flame A while rejecting Flame B Similarly Detector B is positioned to assure maximum response to Flame B while rejecting Flame A If you reposition a det...

Page 7: ...e Fig 5 8 The C7012A C G Flame Detectors do not have the oscillating shutter mechanism for checking the UV sensor so they can be mounted in any position suitable for the temperature environment The C7012E F Self Checking Flame Detectors incorporate an oscillating shutter mechanism and therefore require special consideration for mounting positions other than vertically sighting downward or upward T...

Page 8: ...itable for at least 167 F 75 C c For high temperature installations use Honeywell specification No 32004766 003 or equivalent for the F leadwire This wire is rated up to 400 F 250 C for continuous duty It it tested for operation up to 20 000 volts and for breakdown up to 32 000 volts For the other leadwires use moisture resistant no 14 wire selected for a temperature rating above the maxi mum oper...

Page 9: ...NG LEADWIRES SUPPLIED WITH C7012E JUNCTION BOX CONDUIT CONTAINING F G LEADWIRES CONDUIT CONTAINING POWER AND SHUTTER LEADWIRES M20035 CONTROL CABINET C7012E 1 1 1 ISOLATE F G LEADWIRES FROM OTHER LINE VOLTAGE WIRING BY A MINIMUM OF 2 INCHES YELLOW GREEN YELLOW BLACK M9371 G C7012A C G 1 FLAME SAFEGUARD CONTROL TERMINAL STRIP OR WIRING SUBBASE 1 TWO C7012A C OR G DETECTORS CAN BE CONNECTED IN PARAL...

Page 10: ...MPERS BETWEEN TERMINALS 14 AND 13 AND BETWEEN TERMINALS 12 AND F IF THERE ARE JUMPERS AND INSTALL A JUMPER BETWEEN TERMINALS 13 AND 7 VOLTAGE AND FREQUENCY RATING OF THE C7012E OR F MUST MATCH THE POWER SUPPLY OF THE FLAME SAFEGUARD CONTROL IDENTIFICATION LABEL ON LEADWIRES 2 3 4 1 5 WHITE YELLOW GREEN M9375A C7012E OR F 3 1 AN R7247C DYNAMIC SELF CHECK AMPLIFIER MUST BE USED WITH AN R4140 BC7000 ...

Page 11: ...N LEADWIRES CHECK L1 CONNECTION OF 7800 SERIES DEVICE BEING INSTALLED TO LOCATE CORRECT TERMINAL CAUTION EQUIPMENT DAMAGE HAZARD SERIOUS DAMAGE TO SHUTTER MECHANISM CAN OCCUR ON EC78XX SERIES RELAY MODULE APPLICATIONS ONLY INSTALL A 220 240 VAC TO 120 VAC 10 VA MINIMUM STEP DOWN TRANSFORMER ORDER SEPARATLY TO DRIVE THE SHUTTER 2 3 4 5 6 7 5 7 1 2 BLUE BLACK BLACK YELLOW GREEN S L2 L2 L1 6 M6823B 1...

Page 12: ...ntrol amplifier see Fig 17 The W136A Meter then directly reads the flame signal in microamperes Refer to Table 1 for minimum acceptable flame currents Fig 18 Measuring microamp flame signal The R7747C and R7847C Amplifiers used with the BCS 7700 and 7800 Series Flame Safeguard controls respectively have a dc voltage flame signal output For the R7747C Amplifiers a volt ohmmeter with a 20 000 ohm vo...

Page 13: ...ame safeguard control 1 Close the pilot and main burner manual shutoff valves 2 Start the burner and run through the Ignition period Igni tion spark should occur but the flame relay must not pull in The flame signal should not be greater than 0 25 microampere for most Honeywell controls and not greater than 1 0 Vdc for BCS 7700 controls nor larger than 0 25 Vdc for 7800 Series controls 3 If the fl...

Page 14: ...g usually between 0 9 to 2 3 Vdc on the S7800 Keyboard Display Mod ule g Currently obsolete Table 1 Flame Signal Flame Detector Plug inFlame Signal Amplifier Flame Safeguard Control s Minimuma Acceptable Steady Current uA Maximum Expected Current uA Minimuma Acceptable Steady Voltage Vdc Maximum Expected Voltage Vdc C7012A C R7247A R4075C D Eg R4138C Dg R4140G L M BC7000L 2 0 6 0 R7247Bb Ampli Che...

Page 15: ...follow the applicable procedures for either a low reading or a zero reading on the meter After reinstalling the detector or replacing its cover recheck the meter reading To try to obtain the proper flame signal adjust the position of the detector If you complete all of the procedures and cannot yet obtain a proper flame signal replace the detector Preliminary Inspection 1 Check for the proper line...

Page 16: ...the holes in the socket 8 Carefully push the new tube firmly into the socket On a C7012E or F the alignment guide snaps into place around the tip of the tube 9 Make sure the new UV sensor tube is seated securely NOTE The cover for a C7012C or F has a small hole that is keyed to a pin on the body flange Fig 8 10 Replace the detector cover Fig 21 Replacing ultraviolet radiation sensing tube Replacin...

Page 17: ...to the window aperture with either side toward the flame 7 Insert two rubber mounting gaskets only one gasket when replacing a focusing lens into the aperture 8 Put the back section of the mounting flange rubber washer and fiber neoprene gasket into place on the faceplate and securely tighten the three mounting screws NOTE Make sure the red rubber washer between the gray asbestos neoprene gasket a...

Page 18: ...ow fall into your hand 5 Insert either side of the new 122037 Quartz Viewing Win dow into the window aperture 6 Screw the retaining ring with O ring seal into the seal off flange and tighten securely 7 Clean the viewing window on both sides with a clean cloth placed over the eraser end of a pencil 8 Put the seal off flange back into place on the faceplate and securely tighten the four hex head bol...

Page 19: ...C7012A C E F G SOLID STATE PURPLE PEEPER ULTRAVIOLET FLAME DETECTORS 19 60 2398 17 ...

Page 20: ...roducts visit ThermalSolutions honeywell com or contact your Honeywell Sales Engineer Honeywell Process Solutions Honeywell Thermal Solutions HTS 2101 CityWest Blvd Houston TX 77042 ThermalSolutions honeywell com C7012A C E F G SOLID STATE PURPLE PEEPER ULTRAVIOLET FLAME DETECTORS U S Registered Trademark 2021 Honeywell International Inc 60 2398 17 Rev 05 21 Printed in United States ...

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