R7824, R7847, R7848, R7849, R7851, R7852, R7861, R7886 AMPLIFIERS FOR 7800 SERIES AND R7140 RELAY MODULES
3
65-0109—14
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 com-
mon.
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.
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 65-
0312 for Certificate Agreement.
Approvals:
Underwriters Laboratories Inc. Listed: File no. MP268, Guide
no. MCCZZ: R7847A, R7847B, R7847C, R7861A, R7886A,
R7848A, R7848B, R7849A, R7849B, R7851B, R7851C.
Underwriters Laboratories Inc. Component Recognized: File
no. MP268, Guide no. MCCZZ: R7824C.
Canadian Standards Association Certified: LR95329-3.
Factory Mutual Approved: Report 1V9A0.AF. (R7851B, Report
Number 3011020, June 16, 2003), R7851C (Report number
3020842, April 12, 2005.)
SwissRe (formerly Industrial Risk Insurers) Acceptable.
Table 1. Relay Module Flame Failure
Response Time (FFRT).
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.
Relay Module
Flame Failure Response
Time (FFRT) in seconds
0.8 or 1
2.0 or 3.0
EC7810, EC7820, EC/RM7830,
EC/RM7850
1.0
2.0
EC/RM7823, EC/RM7885, EC/
RM7890, RM7895, RM7896,
RM7897, RM7898, RM7888,
RM7838, RM7800, RM7840,
R7140
0.8
3.0
RM7824
N/A
3.0
S
–
+
FLAME AMPLIFIER
3/8 (9)
3
(76)
M11460
3-9/16 (91)
7/8
(23)
