Sensor Stability

The F-900 will begin to warm-up. The F-900 will display the Sensor Stability screen after pressing the RIGHT arrow to get into the Measure Menu. The display will show the File that is open and the Flow of gas being pumped through the instrument. Below this will be whether the initialization is automatic or manual. If the initialization is automatic, the F-900 will precede directly to the measurement (Graph Mode) once the sensors have stabilized. If the initialization is manual, Monitor Mode will not be triggered until the user presses the RIGHT arrow to enter Monitor Mode.

• Press the DOWN arrow key to switch between automatic and manual initialization.
• Press the RIGHT arrow to skip the Sensor Stability screen and proceed to the Graph Mode display.

If the offset autocorrection feature is enabled, then the unit will run the set zero process automatically every 24 hours (or at the user defined time interval). The offset autocorrection utilizes Chamber Out, which should be left full of KMnO₄ even if Chamber Out is set to off during normal measurements. For more details on the offset autocorrection, see the Setup > Calibration menu on page 42.

NOTE: The F-900 ethylene analyzer sensors should be given 24 hours to stabilize after being on an airplane. Start a measurement and enable the Closed Loop (On). Then, allow the instrument to measure for 24 hours while connected to a power supply.