YSI IQ SensorNet 2020 XT Terminal - Manual (Page 156)

Settings/setup System 2020 XT USB
5 - 36 ba76019e01 12/2012
5.12 Measured value logging
With the Measured value logging setting you can record and store
measured values of IQ sensors or differential sensors.
You can display the stored measured values
 as a list or
 display the temporal course of the stored measured values
graphically (see section 4.4.4).
 display the stored measured values to a PC.
The system allocates memory blocks to an IQ sensor for the Measured
value logging. With a recording interval of 1 measurement dataset per
minute, a recording duration of 1 day per memory block is possible. 360
memory blocks are available and can be distributed to the sensors.
The recording duration directly depends on the recording interval. If a
recording duration of 0 d is set for a sensor, there is no memory block
allocated to the IQ sensor. The Dur. setting also contains the number
of the allocated memory blocks (see table).
Minimum recording
duration
Approx 1 year with a recording interval of 1 min and one allocated
memory block.
Maximum recording
duration
Approx. 59 years with a recording interval of 60 min and 360 allocated
memory blocks for a sensor.
If several sensors are recorded at the same time, the number of
memory blocks available for one sensor decreases and, therefore, the
longest possible recording duration decreases as well.
Recording interval Possible recording duration with the given recording interval
1 min 0 d 1 d 2 d 3 d ... 360 d
5 min 0 d 5 d 10 d 15 d ... 1800 d
10 min 0 d 10 d 20 d 30 d ... 3600 d
15 min 0 d 15 d 30 d 45 d ... 5400 d
30 min 0 d 30 d 60 d 90 d ... 10800 d
60 min 0 d 60 d 120 d 180 d ... 21600 d
Number of allocated
memory blocks
0 1 2 3 ... 360