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SCHILLER AT-2plus 6-Channel ECG Unit
SERVICE HANDBOOK Issue d May 2002
Chapter 1
Operating Elements
Memory and Data Transmission Option
WARNINGS & CAUTIONS
WHEN NON-MEDICAL DEVICES ARE CONNECTED TO THE RS-232 INTERFACE ENSURE
THAT BOTH UNITS ARE SECURELY CONNECTED TO THE SAME EARTH POTENTIAL.
WHEN OPERATING THE UNIT ON BATTERY AND SIMULTANEOUSLY USING NON-
MEDICAL DEVICES, THE RS-232 INTERFACE MUST BE FULLY ISOLATED.
AN EXTERNAL DEVICE MUST ONLY BE CONNECTED USING THE ORIGINAL
SCHLLER INTERFACE CABLE ASSEMBLY.
The memory option allows approximately 45 recordings (dependent on size and parameters
specified when the recording was taken) to be stored and transmitted over the RS-232 interface.
When no more recordings can be stored the message `MEMORY FULL` is displayed. Old
recordings must be deleted or transmitted before further recordings can be stored. A number of
memory settings can be made as follows:
Note:
At the time of print it is not possible to read or to delete individual stored recordings.
Auto Storage and Auto Erase
Memory Setup
Entry Key Sequence
Save Mode
ALT
0
5
0
Auto save off
1
Auto save on
2
Auto erase off
3
Auto erase on
With `auto save on`, all
auto
mode recordings, will be automatically stored on completion.
With `auto erase on`, all stored recordings are erased after sending over the RS-232 interface.
Manual Storage
When auto save is set to off, the following message is displayed after an
auto
mode ECG.
Use the arrow keys to select yes or no and press the enter key
ENTER
When YES is selected the message `STORING` appears in the message box (under the date and
time box), during the storage process.
To store the current recording at any time, press the ALT key followed by the key `S`.
ALT - S
Displaying Memory Files
To display the contents of the memory press the ALT key followed by the key `M `
ALT - M
