Fourier MultiLab, User Manual

Page: 30 / 149

Chapter 1 MultiLogPRO 21
Manual sampling - use this mode for:
•
Recordings or measurements that are not related to time.
•
Situations in which you have to stop recording data after each sample
obtained, in order to change your location, or any other logging
parameter (
Note: During the experiment no changes can be made to
the MultiLogPRO ’ s configuration).
To start an experiment using manual data logging, set the RATE to manual and
press the Enter button once to start the data recording, then press the
Enter button each time you want to collect a sample.
You can also perform manual logging via MultiLab (see page 32).
2. Sampling Points - After you have chosen the sampling rate, choosing the
number of points will determine the logging period: Samples / Rate = Logging
time. You can also choose the duration of an experiment first, and then
calculate the number of samples: Samples = Logging time
× Rate.
Continuous
In the Continuous mode, MultiLogPRO does not save data, and can continue logging
indefinitely.
If MultiLogPRO is connected to the PC and the MultiLab software is running, the data
is automatically saved to the computer and displayed in a real-time graph.
To operate in Continuous mode select
RATE equal to or less than 100/s and
SAMPLES = Continuous .
You can also select Continuous mode directly from the MultiLab software.
Note: MultiLogPRO must be set to a display mode other than graphic in order to
enable the Continuous mode.
1.2.13. Programming Rules and Limitations
The following are some rules and limitations you must take into account when
programming the MultiLogPRO, as MultiLogPRO integrates all programming
limitations automatically. MultiLogPRO will only allow the programming of settings
that comply with the rules below.
1. Sampling Points
• Increasing the number of active inputs limits the number of
sampling points one can choose. The following condition must
be always satisfied: Samples
× Active Inputs < Memory.
MultiLogPRO ’ s memory is sufficient for 100,000 samples.
However, when sampling at rates faster than 100 samples per
second the memory can store only two experiments of 32,000
samples each.
•
Selection of 100,000 sampling points will create 2 files of 50,000
points each in the data logger
’
s memory