18
9.
MEASURED DATA ACQUISITION
Measured data acquisition can be performed in basically two ways :
1. Perform measurement online and transfer data to the PC immediately (no
device-internal memory required).
2. Perform measurement offline, i.e. the data is first saved to the device memory
(option S) or to an external memory connector with micro SD card and then
transferred to the PC later.
9.1 Online measurement with PC
For conveniently recording measured data on the PC the measured data acqui-
sition software Win-Control is ideally suited. This software is unique in that it can
scan one stand-alone or several internetworked measuring modules at its own
measuring cycle, then save the measured data on the PC, and output it online
in a clearly understandable form as a line diagram, table, or list; thus for process
control purposes you need simply to program the measuring cycle in Win-Con-
trol. There are numerous other possibilities using formula channels, control and
regulation functions, alarm reports via SMS and e-mail, etc. but it would be going
too far to describe all these here in detail.
9.2 Offline measurement
To perform offline measuring operations, i.e. data logging in the device itself,
you need either option S with a 500-KB EEPROM in the device or an external
memory connector with a micro SD card (ZA 1904-MMC); in either case the
following parameters must be configured.
1. Date, time-of-day
2. Cycle with saving to memory activated
3. Sleep mode, possibly
The easiest way to do this is by means of the AMR-Control software, in menu
<Program device> and <Measured value memory - Record to memory>.
To
start and stop a measuring operation on site there are numerous methods
available; (see Manual 6.6).
1. Press the
START / STOP
key (2) on the device.
2. Program the start date and time-of-day and then either the end date and
time-of-day or the measuring duration (see Manual 6.6.2).
3. Reaction to overshooting / undershooting a limit value (see Manual 6.6.3).
4. Triggering in response to electrical signals (see Manual 6.6.4).
The status of a measuring operation and of data recording can easily be traced
by watching the LEDs (see 8.2).
To read out the measured data (see Manual 6.9.3) select AMR-Control menu
item <Devices - Data memory>. Here you can transfer to a file on the PC either
the complete memory or parts of it selected according to date and time-of-day
or by number; the device memory can then be cleared.
Summary of Contents for ALMEMO 8590-9
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