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