Serinus 44  User Manual  3.0 
 
 
Always select this menu item before removing the USB memory stick 
or select the same menu item from the Service Menu (refer to Section 
3.4.12). Failure to do this may cause corruption of the memory stick. 
This is a multiplication factor which is used to adjust the 
concentration measurement to the appropriate level (set by 
performing a Span Calibrate NOx). This should be recorded after each 
calibration in the station log book. 
A field that notifies the user when the next instrument service is due. 
This value is editable in the Next Service Due field of the Advanced 
Menu (refer to Section 3.4.29). This field is only displayed in the two 
weeks prior to the date displayed in this field or after the date has 
occurred. 
 
3.4.2  Main Menu 
There are six menus on the Main Menu screen. 
Measurement Settings Menu 
 
3.4.3  Analyser State Menu 
Main Menu  Analyser State Menu 
This displays the status of various parameters that affect instrument measurements. 
This field will always display Serinus. 
The variant of the Serinus model. (e.g. S44) 
The range of the Serinus model (Standard, High or Trace). 
The main controller PCA serial number. 
The main controller PCA version. 
This field displays the firmware version currently in use on this 
instrument. This can be important when performing diagnostics and 
reporting back to the manufacturer. 
This field displays the time and date of the last power failure or when