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C7012A,C,E,F,G Solid State
Purple Peeper®
Ultraviolet Flame Detectors
C7012C,F
APPLICATION
The C7012A,C,E,F,G Flame Detectors are solid-state
electronic devices for sensing the ultraviolet radiation emitted
during combustion of most carbon-containing fuels such as
natural gas, LP gas, and oil.
C7012A,E,G
FEATURES
All models
• Solid-state electronic circuitry provides low power
consumption and high reliability.
• Solid-state models directly replace previous models
with vacuum electron tube circuitry.
• Detectors can be mounted horizontally, vertically or
at any angle. The self-checking C7012E,F 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.
• 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 Honeywell Flame Safeguard
Controls using Honeywell Rectification (R7247A,
R7289A, R7847A1082) and Ampli-Check™
Rectification (R7247B, R7847B1072) Flame Signal
Amplifiers.
• C7012G models available to meet BGC (British) and
DIN (German) requirements.
C7012E,F
• Incorporate UV sensor tube checking feature; used
with Honeywell Dynamic Self-Check (R7247C, R7847C)
Flame Signal Amplifiers.
Application ........................................................................
Features ...........................................................................
Specifications ...................................................................
Disposal ............................................................................
Installation ........................................................................
Adjustments and Checkout .............................................. 12
Troubleshooting ................................................................ 15
Service ............................................................................. 16
C7012E, F with
R7847C Amplifier
PRODUCT DATA
Contents
SIL
3
Capable
60-2398-17
1
1
2
2
4
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Summary of Contents for Honeywell Purple Peeper C7012A
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Page 1: Table Of Contents
• Models are available with a -40°F (-40°C) rating. C7012A,C,G The C7012A,C,E,F,G Flame Detectors are solid-state • Designed for use with Honeywell Flame Safeguard electronic devices for sensing the ultraviolet radiation emitted Controls using Honeywell Rectification (R7247A, during combustion of most carbon-containing fuels such as R7289A, R7847A1082) and Ampli-Check™... -
Page 2: Specifications
C7012A,C,E,F,G SOLID STATE PURPLE PEEPER® ULTRAVIOLET FLAME DETECTORS • Oscillating shutter interrupts ultraviolet radiation C7012F Self-Checking Solid State Purple Peeper® Ultraviolet reaching UV sensor between 60 and 120 times per Flame Detector: Same as C7012E except with minute (10 times per minute with R7747C dynamic explosion-proof housing for use in hazardous locations. - Page 3 114465 Gasket, silicone rubber; for installing viewing Connector. Mating connector (Brad Harrison™ Type window (three required). 41306N or 41307N not provided by Honeywell). C7012A,E and G: 114372 Quartz Viewing Window; rated for 20 psi (138 kPa). NOTE: Models designed to meet DIN (German) and...
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Page 4: Installation
More that one disconnect can be involved. See Accessories. IMPORTANT Vibration 1. Do not connect these detectors to non-Honeywell If the C7012 is subject to excessive vibration, use a special manufactured controls (primaries, programmers, 123539 Antivibration Mount for the C7012A,E or G. If you use multiburner systems, and burner management this mount, install it before you position and sight the detector. - Page 5 C7012A,C,E,F,G SOLID STATE PURPLE PEEPER® ULTRAVIOLET FLAME DETECTORS Clearance Low angle sighting permits the detector to view a greater depth of flame, thus reducing the effects of instabilities in the flame Make sure there is enough room to easily mount the sight pipe, pattern.
- Page 6 C7012A,C,E,F,G SOLID STATE PURPLE PEEPER® ULTRAVIOLET FLAME DETECTORS Screening Effects Smoke, oil mist, dirt and dust are masking agents that attenuate the ultraviolet radiation that the flame emits. If they absorb too much radiation, the amount of ultraviolet radiation reaching the detector is reduced. The flame signal then can FLAME A FLAME B DETECTOR A...
- Page 7 C7012A,C,E,F,G SOLID STATE PURPLE PEEPER® ULTRAVIOLET FLAME DETECTORS NOTE: If you use 118367A Swivel Mount and you are (see Fig. 6). The C7012F must be mounted with the conduit positive about the location and sighting angle, you opening located approximately 45 degrees below the can permanently weld the pipe.
- Page 8 167°F (75°C). 2. Screw the coupling onto the sight pipe, reducer, or other c. For high temperature installations, use Honeywell fitting. specification No. 32004766-003 or equivalent for the 3. Mount the remainder of the pipe union (with the detector) F leadwire.
- Page 9 C7012A,C,E,F,G SOLID STATE PURPLE PEEPER® ULTRAVIOLET FLAME DETECTORS C7012A,C,G C7012E FLAME SAFEGUARD CONTROL TERMINAL STRIP OR WIRING SUBBASE BLUE CONTROL CONDUIT CONTAINING CABINET LEADWIRES SUPPLIED YELLOW WITH C7012E CONDUIT CONTAINING YELLOW/GREEN F-G LEADWIRES (L1) BLACK (POWER SUPPLY) CONDUIT CONTAINING JUNCTION BOX POWER AND SHUTTER (L2) BLACK...
- Page 10 C7012A,C,E,F,G SOLID STATE PURPLE PEEPER® ULTRAVIOLET FLAME DETECTORS C7012E,F TERMINAL STRIPS FOR R4140 OR BC7000 ON Q520A WIRING SUBBASE TERMINAL STRIP FOR R4075E ON SUBBASE YELLOW BLUE (L2) WHITE WHITE C7012E OR F (L2) BLACK YELLOW (L1) BLACK YELLOW/GREEN WHITE (L2) WHITE (POWER SUPPLY)
- Page 11 REFERENCE BRAD HARRISON® CONNECTOR TYPE 41310. MATING CONNECTOR COULD BE BRAD HARRISON® FLAME SAFEGUARD DEVICE SHUTTER DRIVE CONNECTOR TYPE 41306N OR 41307N (NOT SUPPLIED TERMINAL BY HONEYWELL). M6823B BOTH CONNECTORS ARE KEYED TO ALLOW CONNECTION IN ONLY ONE POSITION. REFERENCE AMPHENOL CONNECTOR TYPE MS3106A18-20P. M6822 Fig.
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Page 12: Adjustments And Checkout
Measure the flame signal with a volt-ohmmeter such as the Honeywell W136A Volt-ohmmeter (see Fig. 17). To measure the flame current (signal), use 196146 Cable 20,000 VOLT- Connector, included with W136A, in conjunction with the meter. - Page 13 The flame signal should not be greater than 0.25 For a C7012E or F, the shutter operation causes microampere for most Honeywell controls and not fluctuations in the current or voltage reading. Read greater than 1.0 Vdc for BCS 7700 controls nor larger the average stable current, disregarding the than 0.25 Vdc for 7800 Series controls.
- Page 14 C7012A,C,E,F,G SOLID STATE PURPLE PEEPER® ULTRAVIOLET FLAME DETECTORS Table 1. Flame Signal. Minimum Plug-in Flame Acceptable Maximum Minimum Maximum Flame Signal Flame Safeguard Steady Current Expected Acceptable Steady Expected Detector Amplifier Control(s) (uA) Current (uA) Voltage (Vdc) Voltage (Vdc) C7012A,C R7247A —...
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Page 15: Troubleshooting
Leakage paths caused by moisture, soot, or dirt. 3. With the burner running, check the temperature at the 1. Use Honeywell W136A Volt-ohmmeter with a zero to detector. If it exceeds 175°F (79°C): 25 microampere scale to check out most Honeywell a. -
Page 16: Service
C7012A,C,E,F,G SOLID STATE PURPLE PEEPER® ULTRAVIOLET FLAME DETECTORS SERVICE 10. Replace the detector cover. SHUTTER ASSEMBLY (C7012E OR F) WARNING ULTRAVIOLET SENSING TUBE TUBE BASE Electrical Shock Hazard. TUBE SOCKET Can cause serious injury or death. SCREWDRIVER Open the master switch to disconnect power before removing or installing the detector or its cover. - Page 17 C7012A,C,E,F,G SOLID STATE PURPLE PEEPER® ULTRAVIOLET FLAME DETECTORS 5. Insert one rubber mounting gasket into the window aper- ture on the faceplate. WHITE 6. Insert the new quartz viewing window (or focusing WIRES COIL lens) into the window aperture with either side toward the flame.
- Page 18 C7012A,C,E,F,G SOLID STATE PURPLE PEEPER® ULTRAVIOLET FLAME DETECTORS C7012C or F (Fig. 23) 1. Open the master switch and remove the detector from HEX-HEAD BOLT (4) the sight pipe (see appropriate section). SEAL-OFF FLANGE 2. Unscrew the four hex-head bolts holding the seal-off flange to the faceplate, and remove the flange.
- Page 19 C7012A,C,E,F,G SOLID STATE PURPLE PEEPER® ULTRAVIOLET FLAME DETECTORS 60-2398-17...
- Page 20 C7012A,C,E,F,G SOLID STATE PURPLE PEEPER® ULTRAVIOLET FLAME DETECTORS For More Information The Honeywell Thermal Solutions family of products includes Honeywell Combustion Safety, Eclipse, Exothermics, Hauck, Kromschröder and Maxon. To learn more about our products, visit ThermalSolutions.honeywell.com or contact your Honeywell Sales Engineer. Honeywell Process Solutions Honeywell Thermal Solutions (HTS) ®...