NARDA LR-01, User Manual

Page: 151 / 194

Command protocol 9-23
SAQ_ x;t
This setting command sets the Logger parameters.
Argument
x represents the storing rate, in seconds, 1 s minimum and 900 s maximum.
If
x is set to -1 , the Logger is activated but the trigger event becomes the pressing of the
button or, if enabled (SMSK L), the exceeding of the alarm threshold. In other words,
when x=-1 the logger does not have a fixed time rate.
Please refer to command SMSK for the Alarm Mask and SALR for the field level
threshold.
If the Logger rate
x is greater than 0 , and the logger is armed on crossing the alarm
threshold (SMSK L), the log is carried out with the predetermined time interval and only if
the alarm threshold has been exceeded.
x=0 disables the Logger.
Argument
t represents the Logger mode.
•
t=32 selects the compact version of the log, with no position information. Each
record occupies 32 bytes.
•
t=64 selects the extended versione of the log, complete of GPS data. Each
record takes 64 bytes.
The averaging time and type is the one set by SAVG command.
If logging rate is lower than the averaging time (set by SAVG command), the instant value
(or values, depending on the probe) is stored.
When the logger is armed for pressing the
button , the instantaneous values are saved.
If it is set that the alarm is also generated on the
serial port
(S field in the SMSK
command), the binary file corresponding to the record is sent to the serial port at the
preset logger rate.
Note: setting the Logger via the SAQ_ command does not correspond to the actual start
of the Logger, which instead occurs by pressing the button for more than 5 seconds, or
via the SLST 1 command. This event erases the entire memory and the previously
acquired logs are deleted.
The Log remains active until the unit is turned off or the maximum number of storable
records is reached. This number depends on the type of Log chosen; i.e. 125k in compact
mode and 250k in extended.
The reply is the same as per ?AQ_ command.
Example:
#LRSAQ_30;32* which means that the logger is set to save a measurement
every 30 seconds, of the compact type (32 bytes).