Ahlborn ALMEMO 2290-4 V5 - Memory Connector

7.4.1 Memory Connector
The ALMEMO
®
2290-4 is the first device that allows connecting external
ALMEMO
®
EEPROM Memory Connectors ZA 1904-SS with capacities of
128kB or 256kB (25,000 or 50,000 measured values). These memories do not
require a battery to keep stored data available. They can be removed, sent
away and, independent from the device they can be evaluated on a computer
by means of a readout interface (ZA 1409-SLK). The baud rate for the readout
of data using the readout interface can be set via the measuring instrument
(see 9.1).
The function ring memory will not be supported when storing
data on the memory connectors.
Retrofitting the Data Logger Function
If the measuring instrument has been purchased without the option OA
2290-4S and the device needs to be retrofitted for use as a data logger, a
memory connector with option OA 2290-4S must be purchased and connected
to the socket A2 of the measuring device. The memory functions (e.g. display
of memory capacity ´MF´, see above) will automatically be activated, an ´S´ will
be indicated at the revision output next to the type of data, and the data
recording can be immediately started. After removing the memory connector
the internal memory is also available for data storage.
Application
The memory connector is plugged into socket A2 and will be automatically
identified and, as long as it is connected, will be used in place of the internal
memory. This will also be visible at the display of the memory capacity. Left of
the memory space a 2-digit connector number will be indicated. For
identification of the connector it can be programmed from 00 to 99 as follows.
After a long press of the key , the message ´SCLr´ will start flashing
▲
PROGR
and when the key is operated again, the first digit of the number will
▲
PROGR
flash and can be edited as described in 5.4.
Input of the connector number:
, , .., , ..,
1s
PROGR
PROGR
PROGR PROGR
0 1:1 2 8.5 MF
If the internal data memory contains data when connecting the
memory connector the message ´SCLr´ will flash in the display and
prompt the user to delete the memory by using the key CLEAR (see
7.4.3). If the data needs to be rescued the connector must be
removed again and the data must first be read out.
ALMEMO

2290-4 39
Data Memory