Ahlborn ALMEMO 2290-4 V5, Руководство по эксплуатации, Страница: 38 / 48

7.3.2 Time and Date
The ALMEMO
®
2290-4 is equipped with a real time clock with date function for
recording the measuring time. It has a device battery so the time and date are
maintained after a switch-off.
Function TIME ´
TM
´
Selection with key
F1...
Programming 6-digit in format
hh:mm:ss
(see 5.4).
Stopping and zero setting of the clock with the keys
long
,
CLEAR
.
▲
PROGR
Operate the key
START/
STOP
to start the clock in any switch setting.
Function DATE ´
DA
´
Selection with key
F1...
Example:
date 1 May 1999
Programming 6-digit in format
dd.mm.yy
(see 5.4). The year number can also
be provided with 4 digits via interface (see manual 6.10.13).
Clear the date by using the keys long,
CLEAR
▲
PROGR
7.4 Data Memory (Option S)
Optionally, the instrument ALMEMO
®
2290-4 can be configured ex factory or
subsequently by means of a memory connector with option 2290-4S, as a data
logger. The basic principles for data storage in ALMEMO
®
devices are
described in the manual section 6.9. The internal data memory of the
ALMEMO
®
2290-4 has a capacity of 30 Kbytes, which is sufficient for approx.
6000 measured values. The memory organisation can be reconfigured from
linear to ring memory (see man. 6.10.13.2).
Display of Memory Capacity
If the measuring instrument has been equipped with the option data logger (OA
2290-4S) the key
F1
can be used to select the function Memory Free ´
MF
´ and
to monitor the free memory space (in Kbytes). If the memory is full the display
turns to 0.0 and no further measured values will be stored if the linear memory
has been selected. If ring memory has been selected, old measured values will
be overwritten.
Function MEMORY FREE ´
MF
´
0 3 0
.
5
MF
1 2:3 4:5 6
TM
0 1:0 5:9 9
DA
38 ALMEMO

2290-4
Data Memory