How do I setup my F-900 for GC Emulation?

First, we need to set the internal volume of the unit in accordance to which sensors are present.

Setup > Calibration > Injection Parameters

Set internal volume according to which sensors the unit is equipped with C2H4. Only – 22.5 C2H4, O2 & CO2 low-resolution – 27.5 C2H4, O2, CO2 low-resolution & CO2 high-resolution – 39.0 C2H4 & CO2 high-resolution – 37.

Next, we will calibrate the unit using the following formula: Calibrated Volume = (Sample concentration * Sample volume) / GC Emulation Result

**Please note that it is absolutely imperative that the analyzer have all sensors properly calibrated before continuing.**

We recommend C2H4 concentrations of 2000ppb and 75ppm (10mL) for GC Emulation calibration.

When calibrating for PPB disable the PPM sensor and vice versa.

Navigate to Setup > Measure > Mode and select ‘GC Emulation’.

Return to the main menu and select ‘Measure’ Follow the on-screen instructions, including attaching the ‘injection port kit’ and entering in the volumes of your ppb and ppm samples.

After a stabilization and pre-processing period, the unit will take 75 seconds to analyze the provided sample.

Once complete, take note of the C2H4 and flow values. The C2H4 value represents the ‘GC Emulation Result’. Enter the values provided into the above formula to calculate the ‘calibrated volume’ value.

Enter the ‘Calibrated Volume’ value under Setup > Calibration > Injection Parameters Repeat the process for the other C2H4 sensor (PPM or PPB).