Delta Faucet DF-745 Manuel D’Utilisation

42                                                                           DF-745

User Interface

Figure 30: Data History Menu

The Data History Screen (Figure 31) enables the user to see the data history displayed in 
strip chart form on the front display. By default, the data history screen displays data for the 
most recent 24 hour period sampled at 1 point per minute (fixed) and the y-axis is auto-
scaling. 

The Next button can be used to toggle the X axis from 1 day (default), to 1 hour, to 1 week 
and then to 3 weeks.

The Next button can also toggle the cursor to the max and min values on the Y axis and the 
arrow keys can then be used to adjust the values, and the display will actively update.

The data history may be downloaded to a USB memory stick, by using the Next key to 
move to the Download box and hitting ENTER. A screen will appear, requesting that a 
memory stick can be placed in the external USB socket. The socket is located behind the 
front door on the left side of the chassis.

The downloaded file will be in tab delimited form and will be all moisture data in the system 
up to 3 weeks old if available. The download process will take up to 15 seconds and the 
display will indicate downloading is in progress. Once the download is complete, control of 
the analyzer is returned to the operator. See Figure 33 for an example of a portion of a 
download taken between the dates of May 1 and May 22. The complete file covers three 
full weeks.