Differential measurement
It is possible, by setting the measured value to zero, to perform pseudo diffe-
rential measurements with respect to a reference value; with two sensors and
the same measured variables genuine differential measuring operations can
be performed.
PROCESS FLOW PROGRAMMING
To digitally record the measured values of all connected sensors a cyclic mea-
suring point scan using data acquisition software or an internal time-based
process flow control is required. For this purpose a software clock and the
print cycle are available. The measuring operation can be started and stopped
via the interface.
Time and date
When the device is switched off, the date and time-of-day are lost. For the
purposes of logging a measuring operation these must be reset.
Print cycle
The print cycle can be programmed to any value between 00:00:01 seconds
and 59:59:59 hh/mm/ss. The print cycle permits cyclic output of measured va-
lues to the interface.
Print cycle factor
To avoid excessive data flow the data output of certain channels can, as and
when necessary, by means of the print cycle factor, be restricted or altogether
disabled. It is also possible to summate pulses over longer cycles.
Output
All measured values and programming values are accessible via various inter-
face cables with RS232, RS422, or optic fiber interface. The output of measu-
red data can be selected in a list, in columns, or in spreadsheet format. Files
in spreadsheet format can be processed by any standard spreadsheet soft-
ware. The print header can be programmed specifically to the company or
application.
Networking
The normal networking possibilities of ALMEMO
®
devices are restricted in this
case because the device address 0 cannot be modified.
Software
Each ALMEMO
®
Manual is accompanied by the AMR-Control software packa-
ge, which can be used to configure the measuring instrument and to program
the sensors. Measuring operations can also be performed online using the in-
tegrated terminal. The WINDOWS
®
software package, WIN-Control, can be
used for data acquisition with graphical presentation and complex data proces-
sing.
ALMEMO
2390-3
7
Introduction