Memory Time; Starting And Stopping Measuring Operations - Ahlborn ALMEMO 2590-2 Operating Instructions Manual

11.5.8.5 Memory time

An important parameter for data recording is the available memory time. This
depends on the free memory capacity available, the measuring rate set, the
scanning mode, and the number of active measuring channels. All these vari-
ables are clearly shown via the menu described.
Active channels for minimum cycle and memory time :
Available memory time :
The ALMEMO 2590-3S/4S with its internal memory can continue recording in-
finitely, so long as in the next menu (see 11.5.9) the parameter Ring memory
is activated. In this mode, as soon as the memory is full, the oldest data is sim-
ply overwritten; the most recent data is always available; (see Manual
6.10.13.2).
Linear memory Data is not overwritten :
Ring memory Data is overwritten :

11.5.9 Starting and stopping measuring operations

A measuring operation can be started and stopped not only by pressing the ap-
propriate keys but also using numerous other methods; these are described
the the Manual, Section 6.6.
These operating instructions, in the 3rd data logger menu, describe the start
time and end time, the measuring duration, and the actions in the event of a
limit value being exceeded (see Section 12.12.2) and the relay and trigger vari-
ants (see Section 14.2).
Start time Start date, End time End date
A measuring series can be started and stopped
automatically at specified times. For this purpose
the start time and start date, and the end time
and end date must be programmed. If no partic-
ular date has been programmed, the measuring
operation will be performed every day within the
set period. Or, alternatively, instead of specifying
the end time the measuring duration itself can be programmed. The total mea-
suring time since starting can be seen in the function Measuring time.

This is assuming of course that the current time-of-day has been pro-
grammed.
Sleep mode takes no account of end time or measuring duration.
To select the menu press key :
Function Measuring duration (format hh:mm:ss): Meas duration : 00:10:00
Start time function (format hh:mm:ss):
End time function (format hh:mm:ss):
Start date function (format dd:mm:yy):
End date function (format dd:mm:yy):
Measuring time since start (format hh:mm:ss.hh): Meas time : 00:01:23.45
Data logger functions
Meas chan. : 12 Active :5
Memory time:
Ring memory : -
<ON>
Ring memory : Ø
Measuring time
Measuring duration 01:00:00
Start time :
Start date :
End time :
End date :
Mªª Fª
< ►F >
Start time :
End time :
Start date :
End date :
ALMEMO ® 2590
24d 13h
Ø
00:00:000.00
07:00:00
01.01.07
17:00:00
01.01.07
FCT
07:00:00
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01.05.07
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