SYSTEM Modes
Manual Part Number:
C5-06-4900-08-0
Revision Level: C
ECO 8029
File Name: MN-A-0008
Page 3-3
Warning:
Do not use a span calibration gas concentration below 1% or above 95%. Failure to
comply will significantly compromise the accuracy of the analyzer.
Warning:
All span calibration gases, except for compressed air, must be certified test gases.
Failure to comply will significantly compromise the accuracy of the analyzer.
Warning:
Use instrument grade and regulated compressed (dew point <35°, particulates <3µ,
condensable hydrocarbons <1ppm) air, only when calibrating to air as span gas. Simply exposing
the sample inlet port to air during span calibration will compromise the accuracy of the analyzer.
Warning:
Only use binary certified calibration gases to calibrate the analyzer. The background
gas must be inert. The background gas must match the process background gas. Failure to
comply will significantly compromise the accuracy of the analyzer.
Attach a regulated calibration gas source to the sample inlet of the analyzer. Note that to
maintain accuracy of the analyzer, it is strongly recommended that the calibration gas pressure
and flow rate is similar to the process gas pressure and flow rate. Wait for the analyzer display to
stabilize (at least 5 minutes).
Warning
: Never apply an unregulated gas supply to the oxygen sensor. Failure to do so may
cause damage to the oxygen sensor.
3.2.1.5
Step 5
Calibrate the analyzer
After a regulated str
eam of calibration gas has been applied to the sensor, press and release the “MODE”
key once. The 7-
segment alphanumeric display will show “CAL”, the
n an oxygen concentration value.
Adjust the displayed oxygen concentration value to match the span gas co
ncentration by pressing the “UP”
or “DOWN” arrow key as required. Press and release the “MODE” key four times to return to Run mode.
Note: The calibra
tion data will not be updated if the “UP” or “DOWN” key is not pressed. If the analyzer
reading is exact
ly similar to your calibration gas, press the “UP” key once and then the “DOWN” key once
before pressing the “MODE” key four times to ensure that the
calibration information is updated.
3.2.2
SET/VIEW ALARM-1 Mode
To enter Set Alarm-1 mode from run mode using the keypad; scroll through the user mode menu by
pressing momentarily the “MODE” key two (2) times, until the 7
-
segment alphanumeric display reads “AL1”
(set alarm-
1 level), and the “RUN” and “ALM1” indicator LED’s flash. The display will show momentarily
“AL1” and then the current alarm
-1 threshold level (an O
2
concentration). Use the “UP” and “DOWN” keys
to adjust the alarm-1 setpoint level. Changed
settings are automatically saved when the “MODE” key is
pressed to enter the next mode.