Vaisala DMT340 - Manual (Page 111)

Chapter 4 _________________________________________________________________ Operation
VAISALA _______________________________________________________________________ 109
Using Serial Line
To set time enter the TIME command. To set date enter the DATE
command.
TIME
DATE
These time and date settings are shown on the timestamps of PLAY
command. When you want to include time and date in the R and SEND
commands, use the FTIME and FDATE commands.
Example:
>time
Time : 13:42:49 ?
>date
Date : 2007-05-31 ?
NOTE If the optional Data Logger Module is not installed, time and date
available on the serial ports (only) are cleared to 2000-01-01 00:00:00 at
reset or at power failure.
Data Filtering
The averaging data filter calculates a average over a certain period of
time. The lowest measurement noise is achieved with the extended
filtering. There are three filtering levels available.
Table 28 Filtering Levels
Setting Filtering Level
OFF No filtering.
STANDARD Standard filtering, enabled by default.
Approximately 13 s moving average.
EXTENDED Extended filtering. Approximately 1 min average by
default, but configurable on the serial line.
Use display/keypad to set the filtering level.
1. Press any of the arrow buttons to open the Main Menu.
2. Select Measuring
by pressing the ► arrow button.
3. Select Filtering and press CHANGE to confirm your selection.
4. Select Off/Standard/Extended and press SELECT to confirm
your selection.
5. Press EXIT to return to the basic display.