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PRODUCT DATA

65-0109-14

SIL

3

Capable

R7824, R7847, R7848, R7849, R7851, 

R7852, R7861, R7886 Amplifiers 

for 7800 SERIES and R7140 Relay Modules

 

APPLICATION

The R7824C Rectification Flame Amplifier is a solid state 

plug-in amplifier that responds to a rectified signal from a 

C7024E,F Self-Check Ultraviolet Flame Detector to indicate 

the presence of flame when used with the 24 Vdc RM7824 

Relay Module.

The R7847A,B Rectification Flame Amplifiers are solid state 

plug-in amplifiers that respond to a rectified signal from a 

rectification type flame detector to indicate the presence of 

flame when used with 7800 SERIES and R7140 Relay Modules.

The R7847C Self-Check Rectification Flame Amplifier is a 

solid state plug-in amplifier that responds to a rectified signal 

from a C7012E,F Self-Check Ultraviolet Flame Detector to 

indicate the presence of flame when used with 7800 SERIES 

and R7140 Relay Modules. This is not European Community 

(CE) approved for EC7810, EC7820, EC/RM7830 or EC/

RM7850 Relay Modules.

The R7848A,B Infrared Flame Amplifiers are solid state plug-

in amplifiers that respond to an infrared signal from a C7015 

Infrared Flame Detector to indicate the presence of flame 

when used with 7800 SERIES and R7140 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 

Flame Detectors to indicate the presence of flame when used 

with 7800 SERIES and R7140 Relay Modules.

The R7852A,B Infrared Flame Amplifiers are solid state plug-

in amplifiers that respond to an infrared signal from a C7915 

Infrared Flame Detector to indicate the presence of flame 

when used with 7800 SERIES and R7140 Relay Modules.

The R7851C Dynamic Self-Check Optical Flame Amplifier is a 

solid state plug-in amplifier that responds to ultraviolet signals 

from C7961E Dynamic Shutter-Check ultraviolet flame 

detectors to indicate the presence of flame when used with 

7800 SERIES and R7140 Relay Modules.

The R7861A Self-Check Ultraviolet Flame Amplifier is a solid 

state plug-in amplifier that responds to an ultraviolet signal 

from a C7061 Self-Check Ultraviolet Flame Detector to 

indicate the presence of flame when used with 7800 SERIES 

and R7140 Relay Modules.

Contents

Application ........................................................................

1

Features ...........................................................................

2

Specifications ...................................................................

2

Ordering Information  ........................................................

2

Installation ........................................................................

5

Checkout ..........................................................................

7

Amplifiers R7847B,C, R7861A, 

R7886, R7851C or R7852B

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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