On eBay Now...

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
TheHoneywell R7847A1033is a solid-state plug-in rectification flame amplifier designed for use withHoneywell 7800 SERIES Relay Modules.
It responds to a rectified flame signal from compatible flame detectors and provides flame presence verification in burner management systems forgas, oil, and coal-fired applications.
This unit is part of Honeywell’s modular flame safeguard control system.
MODEL DETAILSSeries:7800 SERIES
Type:Rectification Flame Amplifier
Flame Detection Type:Rectification (Green Label)
Mounting:Plug-in via printed circuit board edge connector
Fuel Types:Gas / Oil / Coal (depending on detector used)
0.8 or 1.0 second
2.0 or 3.0 seconds
(Depends on selected 7800 relay module)
Range:0.0 to 5.0 VDC
Minimum acceptable:1.25 VDC
Test jacks provided for direct voltage measurement
Operating Temperature:-40°F to 140°F (-40°C to 60°C)
Storage Temperature:-40°F to 150°F (-40°C to 65°C)
Humidity: 85% RH continuous (non-condensing)
Vibration: 0.5G continuous
Weight: 2.5 oz (71 g)
Honeywell7800 SERIES Relay Modules
RM7823
RM7840
RM7890
RM7895
RM7896
RM7888
RM7838
Rectifying Flame Rod Holders:
C7004
C7007
C7011
C7008
C7009
Q179
Rectifying Photocells:
C7003
C7010
C7013
C7014
Ultraviolet (Purple Peeper®):
C7012A
SYSTEM FUNCTION
The R7847A amplifier:
✔ Monitors flame signal from rectification-type sensors
✔ Provides DC flame signal output to relay module
✔ Allows measurement via built-in test jacks
✔ Enables safe burner shutdown on flame failure
This amplifier doesNOTinclude Dynamic AMPLI-CHECK® (that feature is available in R7847B versions).
TYPICAL APPLICATIONSIndustrial boilers
Commercial burners
Process heaters
Gas and oil combustion systems
Burner management systems (BMS)
Used in manufacturing, power plants, food processing, heating plants, and industrial facilities.
Honeywell flame amplifier
R7847A1033
7800 series flame amplifier
burner flame control module
rectification flame sensor amplifier
Honeywell burner control system
RM7890 flame amplifier
gas burner flame safeguard
industrial boiler flame monitor
combustion safety control
Used units. Pulled from working environment.
Not tested. Sold as-is.
May show cosmetic wear such as scratches, marks or label discoloration.
You will receive one unit in similar condition to those shown in the photos.
You will receive ONE Honeywell R7847A 1033 unit.
Serial numbers and date codes will vary.
All units are in similar used condition.
Photos show the actual lot. Individual cosmetic condition may slightly vary.

HONEYWELL R7847A1033 1.25VDC 2/3S NSMP
$211.00
Honeywell R7847 C1005 Dynamic Self-Check Rectification Flame Amplifier
$239.99
NEW OPEN BOX Honeywell R7847 A 1082 Rectification Flame Amplifier STOCK K1622A
$325.00
![]()
Popular Tutorials
Alarms and Indicator Circuit diagrams