Vaisala MMT330 - Manual (Page 114)

User's Guide _______________________________________________________________________
112 __________________________________________________________________ M210733EN-G
Selecting Data Recording Quantities
If the device is provided with the optional display, the recorded quantities
are always those selected for the display. Up to three quantities can be
recorded at a time. See section Changing Quantities and Units on page 99
for instructions on how to select the display quantities with the keypad.
DSEL
Use the serial line command DSEL to select the quantities to be recorded
if the transmitter is not equipped with display/keypad. The MMT330
measures the following quantities:
- Water activity (aw)
- Temperature (T) (metric unit: ºC, non-metric unit:ºF)
- ppm for transformer oil only (H
2
O) (optional quantity)
DSEL [xxx]<cr>
where
xxx = Data recording quantity.
Example:
>dsel aw t
aw T
>
Enter the command without parameters and press ENTER to display the
current recording parameters.
View Recorded Data
If the device is provided with the optional display, the graphical display
shows the data of the selected quantities, one at a time. See section
Graphic History on page 68 for details about graphical display.
You may also dump the logged data to the serial line in numeric form
with the following commands.
DIR
Use the serial line and enter the DIR command to check the available
files.
Without the data logger module, the device records six files (six
observation periods) for each selected quantity. The data logger raises the