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R7824, R7847, R7848, R7849, R7851, R7852, R7861, R7886 AMPLIFIERS FOR 7800 SERIES AND R7140 RELAY MODULES

65-0109—14

6

Fig. 3. Flame detector wiring.

BLUE 

YELLOW 

WHITE 

WHITE 

WHITE 

WHITE 

BLACK 

BLACK 

22 

L2 

L1 

L2 

M27852

BLUE 

BLUE 

WHITE 

WHITE 

BLUE

WHITE

INFRARED (C7915)

ULTRAVIOLET (C7027/C7035/C7044) 

OPTICAL C7927A 

SOLID STATE SELF-CHECKING  

ULTRAVIOLET (C7012E,F) 

L2 

C7076A,D ULTRAVIOLET DETECTOR 

22 

SHUTTER 

SHUTTER 

7800 SERIES 

L1 

L2 

3a 

3b 

REMOTE 

SENSOR 

2b 

2a 

EARTH 

GROUND 

C7076A 

OR 

C7076D 

TERMINAL 

BLOCK 

L2 (COMMON) 

L1 (HOT) 

FLAME ROD 

     

CAUTION: EQUIPMENT DAMAGE HAZARD. INCORRECT WIRING POLARITY CAN DAMAGE OR DESTROY UV SENSING TUBES.

  

CONNECT FLAME DETECTOR WIRES ACCORDING TO FOOTNOTES 1 AND 2 TO PREVENT UV SENSING TUBE DAMAGE.FLAME DETECTOR  

LEADS ARE COLOR CODED.  THE BLUE LEAD MUST BE CONNECTED TO THE F TERMINAL AND THE WHITE MUST BE CONNECTED TO  

THE G TERMINAL.  THE UV SENSING TUBE IS POLARITY SENSITIVE. 

 

FLAME DETECTOR LEADS ARE COLOR CODED.  THE BLUE LEAD MUST BE CONNECTED TO THE F TERMINAL AND THE YELLOW MUST  

BE CONNECTED TO THE G TERMINAL.  THE UV SENSING TUBE IS POLARITY SENSITIVE. 

 

    

CAUTION: EQUIPMENT DAMAGE HAZARD. INCORRECT VOLTAGE CAN DAMAGE SHUTTER MECHANISM ONLY ON EC7800 SERIES 

RELAY MODULES.

 INSTALL A 200/220/240 VAC TO 120 VAC, 10VA MINIMUM, STEPDOWN TRANSFORMER (NOT PROVIDED) TO DRIVE  

THE SHUTTER MECHANISM. 

 

DO NOT USE 0.8/1 SECOND FFRT AMPLIFIER WITH C7012A,C FLAME DETECTOR. 

 

GND (GREEN) LEAD WIRE ON C7961E ONLY.  

BLUE 

YELLOW 

WHITE 

WHITE 

RED 

BLACK 

22 

SOLID STATE SELF-CHECKING  

ULTRAVIOLET (C7024E,F – E SHOWN) 

L2 

L2 

BLUE 

YELLOW 

BLACK 

BLACK 


L1 

L2 

GREEN 

GND 

SOLID STATE  

ULTRAVIOLET (C7012A,C, C7961E) 

BLUE 

YELLOW 

22 

SELF-CHECKING ULTRAVIOLET (C7061A)

Summary of Contents for R7824

Page 1: ...40 Relay Modules The R7849A B Ultraviolet Flame Amplifiers are solid state plug in amplifiers that respond to an ultraviolet signal from a C7027 C7035 or C7044 Ultraviolet Flame Detector to indicate the presence of flame when used with 7800 SERIES and R7140 Relay Modules The R7851B Optical Flame Amplifiers are solid state plug in amplifiers that respond to optical signals from C7927 and C7962 Flam...

Page 2: ...n the amplifier and relay module selected See Table 1 Plug in to 7800 SERIES and R7140 Relay Module through printed circuit board edge connector keyed for proper orientation Flame signal test jacks measure amplifier flame signal voltage 0 0 to 5 0 Vdc Flame signal strength reading range Color coded label identifies flame detection type Green rectification Red infrared Purple ultraviolet Blue pulse...

Page 3: ...able The Amplifiers R7847B C R7861A R7886 R7851C or R7852B used with the appropriate flame detector and used 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 no MP268 Guide no...

Page 4: ... and R7847C Series 4 or greater pulse the shutter when signal of 1 5 Vdc is sensed Display readings of 0 7 to 2 4 Vdc are common i Order flame rod separately see flame detector Instructions for holder Plug in Flame Signal Amplifiers Applicable Flame Detectors Type Color Self Checking Model Flame Failure Response Time sec a Fuel Type Models Rectification Green Dymanic Self Check R7824Cb c h 3 Gas o...

Page 5: ...Shock Hazard Can cause severe injury death or property damage Disconnect the power supply before beginning installation More than one power supply disconnection can be involved 1 Align the amplifier circuit board edge connector with the keyed receptacle on the 7800 SERIES and R7140 Relay Module Be sure the amplifier nameplate faces away from the Relay Module 2 Push in the amplifier until the circu...

Page 6: ...AGE FLAME DETECTOR LEADS ARE COLOR CODED THE BLUE LEAD MUST BE CONNECTED TO THE F TERMINAL AND THE WHITE MUST BE CONNECTED TO THE G TERMINAL THE UV SENSING TUBE IS POLARITY SENSITIVE FLAME DETECTOR LEADS ARE COLOR CODED THE BLUE LEAD MUST BE CONNECTED TO THE F TERMINAL AND THE YELLOW MUST BE CONNECTED TO THE G TERMINAL THE UV SENSING TUBE IS POLARITY SENSITIVE CAUTION EQUIPMENT DAMAGE HAZARD INCOR...

Page 7: ... amplifier and flame detector is used Flame Signal Measurement Fig 4 Flame signal can be measured at the Flame Signal Test Jacks see Fig 4 and at the Keyboard Display Module Measure the flame signal at the appropriate times defined in the Checkout section see applicable 7800 SERIES and R7140 Relay Module Instructions See Table 3 for acceptable and maximum flame signal voltage strengths CAUTION Equ...

Page 8: ...t and the power supply is of the correct voltage and frequency and is sinusoidal 2 Check the detector wiring for defects including a Incorrect connections b Wrong type of wire c Deteriorated wire d Open circuits e Short circuits f Leakage paths caused by moisture soot or accu mulated dirt 3 For a flame rod make sure a There is enough ground area b The flame rod is properly located in the flame c T...

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