Datasheet Content
R7824, R7847, R7848, R7849, R7851,
R7852, R7861, R7886 Amplifiers for
7800 SERIES and R7140 Relay Modules
SPECIFICATION DATA
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 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 Relay Modules.
The R7851C Dynamic Self-Check Optical Flame Amplifier is a
solid state plug-in amplifier that responds to ultraviolet signals
from C7961E,F Dynamic Shutter-Check ultraviolet 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 R7861A Self-Check Ultraviolet Flame Amplifier is a solid
state plug-in amplifier that responds to an ultraviolet signal
from a C7061A Self-Check Ultraviolet Flame Detector to
APPLICATION indicate the presence of flame when used with 7800 SERIES
Relay Modules.
The R7824C Rectification Flame Amplifier is a solid state
plug-in amplifier that responds to a rectified signal from a The R7886A Dynamic Self-Check Ultraviolet Amplifier is a
C7024E,F Self-Check Ultraviolet Flame Detector to indicate solid state plug-in amplifier that responds to a pulsed direct
the presence of flame when used with an RM7824 Relay current signal from a C7076A,C Ultraviolet Flame Detector
Module. with adjustable sensitivity to indicate the presence of flame
when used with 7800 SERIES Relay Modules.
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 FEATURES
flame when used with 7800 SERIES Relay Modules.
• Flame failure response time (FFRT) of 0.8 or 1 second;
The R7847C Self-Check Rectification Flame Amplifier is a or 2.0 or 3.0 seconds, depending on the amplifier and
solid state plug-in amplifier that responds to a rectified signal relay module selected. See Table 1.
from a C7012E,F Self-Check Ultraviolet Flame Detector to
indicate the presence of flame when used with 7800 SERIES • Plug-in to 7800 SERIES Relay Module through printed
Relay Modules. This is not European Community (CE) circuit board edge connector keyed for proper
approved for EC7810, EC7820, EC/RM7830 or EC/RM7850 orientation.
Relay Modules. • Flame signal test jacks measure amplifier flame
signal voltage.
The R7848A,B Infrared Flame Amplifiers are solid state
plug-in amplifiers that respond to an infrared signal from a • 0.0 to 5.0 Vdc Flame signal strength reading range.
C7015 Infrared Flame Detector to indicate the presence of
flame when used with 7800 SERIES Relay Modules.
66-2034-04
R7824, R7847, R7848, R7849, R7851, R7852, R7861, R7886 AMPLIFIERS FOR 7800 SERIES AND R7140 RELAY MODULES
• Color coded label identifies flame detection type Table 1. Relay Module Flame Failure
(see Table 2): Response Time (FFRT).
— Green: rectification. Flame Failure Response Time (FFRT)
— Red: infrared.
Relay Module 0.8 or 1.0 second 2.0 or 3.0 seconds
— Purple: ultraviolet.
— Blue: pulsed rectification. EC7810, EC7820, 1.0 2.0
— White: optical. EC/RM7830,
EC/RM7850
• R7847B, R7848B, R7849B, R7851B, R7852B Dynamic
Ampli-Check® circuitry tests all flame amplifier EC/RM7823, 0.8 3.0
components 12 times per minute. The 7800 SERIES / EC/RM7885,
R7140 Relay Module locks out on safety shutdown EC/RM7890,
with amplifier failure. RM7895,6,7,8
RM7888,
• R7824C, R7847C Dynamic Self-Check Rectification RM7838,
Amplifier, R7851C Dynamic Self-Check Optical Flame RM7800,
Amplifier, R7861 Self-Check Ultraviolet Flame EC/RM7840, R7140
Amplifier and R7886A Dynamic Self-Check Ultraviolet
Amplifier test the detectors and all electronic RM7824 N/A 3.0
components in the flame detection system 12 times
per minute. The 7800 SERIES and R7140 Relay Module Flame Signal (Volts dc):
locks out on safety shutdown with flame detection Minimum Acceptable: 1.25 Vdc.
system failure. Flame Signal Voltage Range (displayed on Keyboard Display
Module or measured with a 1M ohm voltmeter plugged into
NOTE: R7824C, Series 2 or greater, and R7847C, series 4 amplifier test jacks): 0.0 to 5.0 Vdc.
or greater, pulse shutter when signal of 1.5 Vac is
sensed. Environmental Ratings:
Ambient Temperature:
Operating: -40°F to 140°F (-40°C to 60°C).
SPECIFICATIONS Storage: -40°F to 150°F (-40°C to 65°C).
Humidity: Operating 85% rh continuous, noncondensing.
Vibration: Continuous 0.5G environment.
Models:
Flame Detection Systems (see Table 2):
Dimensions: See Fig. 1.
Rectification:
R7824C for use with C7024E,F Solid State Ultraviolet
Detectors.
– +
R7847A,B for use with flame rods, rectifying photocells or
S
C7012A,C Solid State Ultraviolet Detectors.
R7847C for use with C7012E,F Solid State Ultraviolet FLAME AMPLIFIER
Detectors.
3
Infrared: (76)
R7848A,B for use with C7015 Infrared (lead sulfide)
Detector.
R7852A,B for use with C7915 Infrared (lead sulfide)
Detector. 3/8 (9)
Ultraviolet:
R7849A,B for use with C7027/C7035/C7044 Minipeeper 3-9/16 (91)
7/8
(23)
Ultraviolet Detectors.
R7851C for use with C7961E,F Flame Detectors. M11460
R7861A for use with C7061A,F Ultraviolet Detector.
R7886A for use with C7076A,D Ultraviolet Detectors with Fig. 1. Flame amplifier dimensions in in. (mm).
adjustable sensitivity.
Optical: Weight: 2.5 oz (71 g), unpacked.
R7851B for use with C7927 and C7962 Flame Detectors.
Approvals:
Flame Failure Response Time : See Table 1. Underwriters Laboratories Inc. Listed: File no. MP268, guide
no. MCCZZ: R7847A, R7847B, R7847C, R7861A,
R7886A, R7848A, R7848B, R7849A, R7849B, R7851B.
Underwriters Laboratories Inc. Component Recognized: File
no. MP268, guide no. MCCZZ: R7824C.
Canadian Standards Association Certified: LR95329-3.
Factory Mutual Approved: Report 1V9A0.AF.
Swiss Re (formerly Industrial Risk Insurers) Acceptable.
NOTE: EN298 Approved: When these amplifiers are
used with an EC7810, EC7820, EC/RM7830, or
EC/RM7850 Relay Module.
66-2034—04 2
R7824, R7847, R7848, R7849, R7851, R7852, R7861, R7886 AMPLIFIERS FOR 7800 SERIES AND R7140 RELAY MODULES
Accessories:
Flame Simulators:
Rectification: Part no. 123514A.
CAUTION
Ultraviolet: Part no. 203659.…
