Greenheck Amplifier for 7800 Series Relay Module User Manual

Application, Features

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PRODUCT DATA

® U.S. Registered Trademark
Copyright © 1998 Honeywell Inc. • All Rights Reserved

R7824, R7847, R7848, R7849,

R7861, R7886 Amplifiers for

7800 SERIES 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 an 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 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
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 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
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
Relay Modules.

The R7886A Dynamic Self-Check Ultraviolet Amplifier is a
solid state plug-in amplifier that responds to a pulsed direct
current signal from a C7076A,C Ultraviolet Flame Detector
with adjustable sensitivity to indicate the presence of flame
when used with 7800 SERIES Relay Modules.

FEATURES

Flame failure response time of 0.8 or 1 second; or 2.0 or
3.0 seconds, depending on the amplifier and relay
module selected. See Table 1.

Plug-in to 7800 SERIES 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—pulsed rectification.

R7847B, R7848B, R7849B Dynamic Ampli-Check®
circuitry tests all flame amplifier components 12 times
per minute. The 7800 SERIES Relay Module locks out on
safety shutdown with amplifier failure.

R7824C and R7847C Dynamic Self-Check Rectification
Amplifier, R7861 Self-Check Ultraviolet Flame Amplifier
and R7886A Dynamic Self-Check Ultraviolet Amplifier
test the detectors and all electronic components in the
flame detection system 12 times per minute. The 7800
SERIES Relay Module locks out on safety shutdown
with flame detection system failure.

NOTE:

R7824C, Series 2 or greater, and R7847C,
Series 4 or greater, pulse shutter when signal of
1.5 Vac is sensed.

65-0109-6

Contents

Application ............................................................................. 1
Features ................................................................................ 1
Specifications ........................................................................ 2
Ordering Information ............................................................. 2
Installation ............................................................................. 4
Checkout ............................................................................... 6

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