Honeywell R7824 User Manual

65-0109-14

SIL

3

Capable

R7824, R7847, R7848, R7849, R7851,
R7852, R7861, R7886 Amplifiers
for 7800 SERIES and R7140 Relay Modules

PRODUCT DATA

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 plug­in 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 plug­in 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

R7824, R7847, R7848, R7849, R7851, R7852, R7861, R7886 AMPLIFIERS FOR 7800 SERIES AND R7140 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 and R7140 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 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—pulsed rectification.
— White—optical.

• R7847B, R7848B, R7849B Dynamic Ampli-Check®
circuitry tests all flame amplifier components 12 times
per minute. The 7800 SERIES and R7140 Relay Module
locks out on safety shutdown with amplifier failure.

• R7824C, R7847C Dynamic Self-Check Rectification
Amplifier, R7851C Dynamic Self-Check Optical Flame
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 and R7140 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 the shutter when signal of 1.5 Vac
is sensed. Display readings of 0.7 to 2.4 Vdc are
common.

SPECIFICATIONS

Models:

Flame Detection Systems (see Table 2):
Rectification:

R7824C for use with C7024E,F Solid State Ultraviolet

Detectors.

R7847A,B for use with flame rods or C7012A,C Solid State

Ultraviolet Detectors.

R7847C for use with C7012E, F Solid State Ultraviolet

Detectors.

ORDERING INFORMATION

When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the
TRADELINE® Catalog or price sheets for complete ordering number.

If you have additional questions, need further information, or would like to comment on our products or services, please write or
phone:

1. Your local Honeywell Automation and Control Products Sales Office (check white pages of your phone directory).

2. Honeywell Customer Care

1985 Douglas Drive North
Minneapolis, Minnesota 55422-4386

3. http://customer.honeywell.com or http://customer.honeywell.ca

International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France,
Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A.

65-0109—14 2

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

S

–+

FLAME AMPLIFIER

3/8 (9)

3

(76)

M11460

3-9/16 (91)

7/8
(23)

Infrared:

R7848A,B for use with C7015 Infrared (lead sulfide)

Detector.

R7852A,B for use with C7915 Infrared (lead sulfide)

Detector.

Ultraviolet:

R7849A,B for use with C7027/C7035/C7044 Minipeeper

Ultraviolet Detectors.
R7861A for use with C7061A Ultraviolet Detector.
R7886A for use with C7076A,D Ultraviolet Detectors with

adjustable sensitivity.

Optical:

R7851B for use with C7927 and C7962 Flame Detectors.
R7851C for use with C7961E Flame Detectors.

NOTE: R7824C, Series 2 or greater and R7847C Series 4 or

greater, pulse the shutter when signal of 1.5 Vac is
sensed. Display readings of 0.7 to 2.4 Vdc are com­mon.

Flame Failure Response Time: See Table 1.

Flame Signal (Volts dc):

Minimum Acceptable: 1.25 Vdc.
Flame Signal Voltage Range (displayed on Keyboard Display

Module or measured with a 1M ohm/volt meter plugged into
amplifier test jacks): 0.0 to 5.0 Vdc.

Environmental Ratings:

Ambient Temperature:

Operating: -40°F to 140°F (-40°C to 60°C).
Storage: -40°F to 150°F (-40°C to 65°C).

Humidity: Operating 85% rh continuous, noncondensing.
Vibration: Continuous 0.5G environment.

Canadian Standards Association Certified: LR95329-3.
Factory Mutual Approved: Report 1V9A0.AF. (R7851B, Report

Number 3011020, June 16, 2003), R7851C
3020842, April 12, 2005.

)

(Report number

SwissRe (formerly Industrial Risk Insurers) Acceptable.

Table 1. Relay Module Flame Failure

Response Time (FFRT).

Flame Failure Response

Time (FFRT) in seconds

Relay Module

EC7810, EC7820, EC/RM7830,

0.8 or 1 2.0 or 3.0

1.0 2.0

EC/RM7850

EC/RM7823, EC/RM7885, EC/

0.8 3.0
RM7890, RM7895, RM7896,
RM7897, RM7898, RM7888,
RM7838, RM7800, RM7840,
R7140

RM7824 N/A 3.0

Weight: 2.5 oz (71g), unpacked.

Dimensions: See Fig. 1.

SIL 3 Capable:

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 65­0312 for Certificate Agreement.

Approvals:

Underwriters Laboratories Inc. Listed: File no. MP268, Guide

no. MCCZZ: R7847A, R7847B, R7847C, R7861A, R7886A,

Fig. 1. Flame amplifier dimensions in in. (mm).

NOTE: EN298 Approved: When these amplifiers are used

with an EC7810, EC7820, EC/RM7830, or
EC/RM7850 Relay Module.

Accessories:

Flame Simulators:

Rectification: 123514A.
Ultraviolet: 203659.

Flame Detectors (ordered separately): select from Table 2.

R7848A, R7848B, R7849A, R7849B, R7851B, R7851C.

Underwriters Laboratories Inc. Component Recognized: File

no. MP268, Guide no. MCCZZ: R7824C.

3 65-0109—14