ABEM Terrameter SAS 4000 / SAS 1000
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19.2.17
Trig
TRG
Triggers a measuremement. When the command has been accepted and the measurement
started a ‘!’ is returned. Then you have to wait for the data to arrive (or an error code). The
data are returned in the following format:
CHX
I
,V,
E,N
,
C
ip1
,E
ip1
,
C
ip2
,
E
ip2
, ... ,
C
ipn
,
E
ipn
;
where X=channel number, I=output current (mA), V is the measured voltage in volts (the
primary voltage in IP measurements), E is the normalized error (standard deviation) in percent
and N is the number of stackings. When doing IP measurements some additional pairs of data
are returned. The number of pairs is equal to the number of IP intervals and each pair consists
of the apparent chargeability for that interval (in milliseconds) and the measurement error
(true error in milliseconds). After each channel’s data has been returned a ‘;’ and a new line
are returned to mark end of data.
The time you have to wait before data starts coming from the instrument depends on the type
of measurement, cycle time, integration time etc.
