Vaisala DMT346 - Manual (Page 134)

User's Guide _______________________________________________________________________
134 __________________________________________________________________ M210762EN-G
Using Serial Line
PURGE
Use the PURGE command to start the sensor purge immediately.
PURGE<cr>
Example:
>purge
Purge started, press any key to abort.
>
The prompt '>' appears when the heating period is over. However, the
transmitter outputs are locked to the values measured before performing
sensor purge until the settling time is over.
PUR
With PUR command you can enable or disable automatic and power-up
sensor purge and set the interval for automatic purge. The default purge
interval is 24 hours. If the sensor is exposed to chemicals it is
recommended to have the sensor purge done at least once in 720 min
(=12 hours). In applications where the chemical exposure is not likely,
the interval can be longer.
PUR<cr>
If the transmitter has a data logger module installed, you can also set the
starting date and time for the interval purge. After the set time has been
reached, the interval purge will be performed at the set interval. This
functionality can be used to make sure the sensor purge starts at a
specific time of the day.
Do not change the settings for duration, settling, temperature,
temperature difference, or purge triggering unless instructed by Vaisala
personnel.
Type PUR and press ENTER to proceed. Skip unchanged values by
pressing ENTER. Input changed values in the format shown by the
current value (for example, date and time). The maximum interval is
14400 minutes (=10 days).