Product Overview

7800 SERIES RM7840E,G,L,M; EC7840L RELAY MODULE
66-2027—04 2
• Burner controller data (optional):
— Expanded annunciator status.
— Flame signal strength.
— Hold status.
— Lockout/alarm status.
— Sequence status.
— Sequence time.
— Total cycles of operation.
— Total hours of operation.
— Fault history, providing for the six most recent
faults:
• Cycles of operation at the time of the fault.
• Expanded annunciator data at the time of the
fault.
• Fault message and code.
• Hours of operation at the time of the fault.
• Sequence status at the time of the fault.
• Sequence time at the time of the fault.
— Diagnostic information:
• Device type.
• Flame amplifier type.
• Flame failure response time.
• Manufacturing code.
• On/Off status of all digital inputs and outputs.
• Selected prepurge time.
• Software revision and version of RM7840 and
optional Keyboard Display Module.
• Status of configuration jumpers.
• Status of Run/Test Switch.
•SIL3 Capable
SIL3 Capable in a properly designed Safety
Instrumented System See form 65-0312 for Certificate
Agreement.
Fig. 1. Relay Module and sequence status LEDs.
SPECIFICATIONS
Electrical Ratings (See Table 1):
Voltage and Frequency: 120 Vac (+10/-15%),
50 or 60 Hz (+/- 10%).5
Power Dissipation: RM7840: 10W maximum.
Maximum Total Connected Load: 2000 VA.
Fusing: Total Connected Load: 15A fast blow, type
SC or equivalent.
Environmental Ratings:
Ambient Temperature:
Operating: -40°F to 140°F (-40°C to 60°C).
Storage: -40°F to 150°F (-40°C to 66°C).
Humidity: 85% RH continuous, noncondensing.
Vibration: 0.5G environment.
Weight: RM7840 with Dust Cover: 1 pound 13 ounces,
unpacked.
Dimensions: See Fig. 2.
Approval Bodies:
Underwriters Laboratories Inc. listed, File No. MP268,
Guide No. MCCZ.
Canadian Standards Association certified, LR9S329-3.
Factory Mutual approved: Report No. 1V9A0.AF.
SwissRe (formerly IRI) acceptable.
Federal Communications Commission: Part 15,
Class A—Emissions.
Mounting: Q7800A for panel mount or Q7800B for wall or
burner mount.
Required Components:
Plug-in Flame Signal Amplifier, see Table 2.
ST7800A:
Plug-in Purge Timer Cards: selectable two seconds to
30 minutes.
Q7800A or Q7800B Wiring Subbase.
S
EQUENCE
S
TATUS
L
EDs
R
ESET
P
USHBUTTON
F
LAME
S
IMULATOR INPUT
FLAME CURRENT
TEST JACKS
R
UN/TEST SWITCH
CAPTIV
E
MOUNTIN
G
SCRE
W
PLUG-I
N
PURG
E
CAR
D
DUS
T
COVE
R
RELA
Y
MODUL
E
FLAM
E
AMPLIFIE
R
M7552
A