Specifications

748414-A
August 1999
20
Heated Flame Ionization Detector Analyzer Module
Rosemount Analytical NGA 2000
3
STARTUP AND OPERATION
12. Manual or Auto-ignite the flame. The Flame-On green LED should be illuminated.
Two methods of burner ignition are possible: auto-ignition and manual ignition. (Note:
The burner is easier to ignite when the oven has reached the desired setpoint
temperature.)
Auto-ignition provides fuel override and three attempted ignitions (default setting), if
necessary.
Before ignition and operation, Fuel Flow must be set to ON in "Light Flame" display
screen under Basic Controls and oven temperature must be at least 85°C.
The manual ignition switch on the Analyzer Module front panel must be manipulated in
the following ways:
• Press up and hold for one minute. This opens burner fuel and air solenoids.
• Press down to ignite burner glow plug for up to 10 seconds.
• Repeat as necessary (if fuel and air sources are farther away than 10 feet, several
more attempts may be necessary).
• If the flame has been lit, but the flame temperature increases slowly, perform the
following steps:
! After igniting flame, release switch for 2 seconds
! Press switch down for 2 seconds
! Repeat release switch and press down steps as necessary.
13. Allow the case and oven to warm up, approximately 1 to 2 hours.
14. Verify that all 4 LEDs are illuminated.
Note the four LEDs on the front panel of the Analyzer Module. They provide necessary
information for either ignition procedure. The LEDs, when illuminated, denote the
following information:
• Green - unit powered on
• Amber - continuous illumination implies oven has reached operating temp. Within
±6°C of setpoint
• Green - Flame on
• Green - purge air system intact (it has filled five volumes of the module interior)