Honeywell R7824, R7847, R7848, R7849,R7851,R7861, R7886 Manual

Honeywell R7824, R7847, R7848, R7849,R7851,R7861, R7886 Manual

Honeywell R7824, R7847, R7848, R7849,R7851,R7861, R7886 PRODUCT DATA

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 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 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 Relay Modules.

Honeywell R7824, R7847, R7848, R7849,R7851,R7861, R7886 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 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 Relay Module locks out on safety shutdown with amplifier failure.
• R7824C and 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 Relay Module locks out on safety shutdown with flame detection system failure.

Honeywell R7824, R7847, R7848, R7849,R7851,R7861, R7886 SPECIFICATIONS

Models:

Flame Detection Systems (see Table 2):

Rectification:
R7824C for use with C7024E,F Solid State Ultraviolet Detectors.
R7847A for use with flame rods, rectifying photocells or
C7012A,C Solid State Ultraviolet Detectors.
R7847B for use with flame rods, rectifying photocells or
C7012A,C Solid State Ultraviolet Detectors.
R7847C for use with C7012E,F Solid State Ultraviolet Detectors.

Infrared:
R7848A for use with C7015 Infrared (lead sulfide) Detector.
R7848B for use with C7015 Infrared (lead sulfide) Detector.

Ultraviolet:
R7849A for use with C7027/C7035/C7044 Minipeeper Ultraviolet Detectors.
R7849B 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, C7935, C7915 and C7962 Flame Detectors.
R7851C for use with C7961E Flame Detectors.

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

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