Vaisala HMT310 - Manual (Page 59)

Chapter 4 _________________________________________________________________ Operation
VAISALA ________________________________________________________________________ 59
Automatic Chemical Purge Settings
Turn ON/OFF Automatic Chemical Purge
This command enables or disables automatic chemical purge.
Syntax: PUR x
Where
x = ON/OFF
Example:
>pur off
Chemical Purge : OFF
>pur on
Chemical Purge : ON
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Set Chemical Purge Interval
If the sensor is exposed to chemicals it is recommended to have the
chemical purge done at least once in 720 min (= 12 hours). In
applications where the chemical exposure is not likely, the interval may
be longer.
In normal use, it is not recommended to change other parameters than the
purge interval. If changing any other parameters is required, always take
note of the current settings before making changes so you are able to
restore the configuration.
Syntax: PUR
Issue the PUR command and type the new interval (in minutes). Press
Enter without entering any values to keep the other parameters in their
current configuration and finish the command. The maximum interval is
14400 minutes (= 10 days).
Example:
>pur
Chemical Purge : ON
Interval min : 1440 ? 720
Duration s : 120 ?
Settling s : 240 ?
Power : 160 ?
Temp diff : 0.50 ?
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