Instruction Manual Model 3100 Analyzer
Manual P/N: C5-06-4900-16-0
Manual file name: MN-A-0005, Rev. C
Page 17
3.2.1.5 Step 4 – Calibrate the analyzer with reference gas
After applying a regulated stream of calibration gas to the sensor, press and release the “MODE” key
once. The 7-segment alphanumeric display will show “CAL”, then an oxygen concentration value. Adjust
the displayed oxygen concentration value to read 20.9% oxygen by pressing the “UP” or “DOWN” arrow
key as required. Press and release the “MODE” key four times to return to “RUN” mode.
3.2.1.6 Step-5 – Apply span calibration gas to the oxygen sensor
Attach the RSM to the selected Span Calibration Gas. Refer to the RSM manual for detailed instructions
on connecting and applying calibration gas to the unit. Flow calibration gas to the sensor until the
analyzer display has stabilized. This allows the calibration gas to sweep out the sample lines.
Note: The Span calibration gas must have an oxygen concentration outside of the range 18% to 24% for
the analyzer to operate properly. If the in-service oxygen sample range is within the 18% to 24% window
under normal operating conditions, Span gas calibration is not necessary.
3.2.1.7 Step-5 – Calibrate the analyzer with span gas
After applying a regulated stream of calibration gas to the sensor, press and release the “MODE” key
once. The 7-segment alphanumeric display will show “CAL”, then an oxygen concentration value. Adjust
the displayed oxygen concentration to read the applied calibration gas oxygen concentration by pressing
the “UP” or “DOWN” arrow key as required. Press and release the “MODE” key four times to return to
RUN mode.
3.2.1.8 Step-6 – Return the oxygen sensor to on-line service
Remove calibration gas from the Remote Sensor Module, and reconnect to the measured process. Refer
to the Remote Sensor Module user manual for details on applying sample gas to that apparatus. Be sure
to flow sample gas to the sensor until the analyzer display has stabilized to allow time to sweep the
sample lines clear of calibration gas.
3.2.2 Set/view ALARM-1 mode
To enter Set Alarm-1 mode during “RUN” mode -- using the keypad, scroll through the user mode menu
by momentarily pressing the “MODE” key two (2) times -- until the 7-segment alphanumeric display reads
“AL1” (set alarm-1 level) and the “ALM1” indicator LED flashes. The display will momentarily show “AL1”
and then the current Alarm-1 threshold level (an O2 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.
3.2.3 Set/view ALARM-2 mode
To enter Set Alarm-2 mode during “RUN” mode -- using the keypad, scroll through the user mode menu
by momentarily pressing the “MODE” key three (3) times -- until the 7-segment alphanumeric display
reads “AL2” (set alarm-2 level) and the “ALM2” indicator LED flashes. The display will momentarily show
“AL2” and then the current Alarm-2 threshold level (an O2 concentration). Use the “UP” and “DOWN”
keys to adjust the Alarm-2 setpoint level. Changed settings are automatically saved when the “MODE”
key is pressed to enter the next mode.
3.2.4 View active faults mode
To enter View Active Faults mode during RUN mode -- using the keypad, scroll through the user mode
menu by momentarily pressing the “MODE” key four (4) times -- until the 7-segment alphanumeric display
reads “FL” and the “FAULT” indicator LED flashes. The display will momentarily show “FL” and then the
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