Emerson Rosemount 700XA Reference Manual page 269

Reference Manual
2-3-9000-744
Name
Flame Ignition
Ignition Attempts
Wait Time Bet Tries
Igniter On Duration
Flame On Sense Temp
Flame Out Sense Temp
FPD Flame Status DI
Preamp Val
Flame Temperature
Flame Status
H2 Valve Cur State
Scaling Factor
Igniter Status
(1)
Electrometer Voltage
(1)
Pre Amplifier Voltage
(1)
Polarizing Voltage
Gain Status
Status
(1) Not used with µFPD.
4. If the Flame Ignition field is set to Manual, and if the Flame Status field is set to Off,
Rosemount 700XA
Description
Select Manual if you want to control the burner ignition; select Auto if you want the
GC to control the burner ignition.
Indicates the number of times the GC will try to light the flame. If an Auto ignition
sequence fails to light the flame after the specified number of attempts, the GC will
close the hydrogen valve, switch the ignition parameter to Manual, and set an active
alarm.
Indicates the amount of time, in seconds, the GC will wait between ignition
attempts.
Indicates the length of time that the igniter will remain on.
The flame ignites when the internal temperature exceeds the value set in this field.
The flame is extinguished when the internal burner temperature falls below the
value set below the Flame On Sense Temp.
Applies to FPDs only. Allows you to select from a list of available digital inputs (DIs).
The DI that is selected will receive the FPD's flame status value.
Detector count. Read-only.
Temperature of the flame as read by the RTD. Read-only.
Options are: Off, On, and Over Temperature. Read-only.
Options are: Open and Closed. Read-only.
Preamp calibration factor.
Options are: Off and On. Read-only.
Output at first stage of FID preamp. Read-only.
Output at second stage of FID preamp. Read-only.
Igniter voltage. Read-only.
Options are: Low and High.
Options are: Ok, Not Installed, and Internal Error. Read-only.
do the following to restart the flame:
a) Click Ignite.
The Flame Status field changes to On when the internal temperature
exceeds the value set in the Flame On Sense Temp field.
Micro flame photometric detector (µFPD)
June 2022
269