ECG measuring signal is
greatly interfered.
Make sure the patient is quiet, the electrodes
are properly connected and AC power system
is well grounded.
10.7 ST Segment Monitoring
n The default setting for ST segment monitoring is "OFF", so the monitor will not process ST analysis.
You can switch it to ON when necessary.
n The ST segment algorithm can measure the elevation or depression of the ST segment on the
user-specified lead. The relevant ST measurement results are displayed numerically at the parameter
areas ST1 and ST2. View the trend data displayed graphically and in tables under "TREND GRAPH"
and "TREND TABLE" menu.
n Unit: mV
n Measurement range: -2.0～+2.0 mV
n Meaning of the value: positive means elevating, negative means depressing.
NOTE:
l When setting ST ANALYSIS on, the monitor will select "DIAGNOSTIC" mode. You can set it to
"MONITOR" mode or "SURGERY" mode as required. However at this time ST value has been severely
distorted.
10.7.1 ST ON/OFF
To set the display of ST parameter on or off:
1. Select "ECG ALM SETUP" item in the "ECG SETUP" menu, refer to the "ECG SETUP" for details;
2. Then select "ST ALM SETUP" to enter its interface, set the "ST ANALYSIS" to on or off.
10.7.2 ST alarm setup
Select "ECG ALM SETUP" item in the "ECG SETUP" menu, input the initial password of alarm setup "70808", click
"ST ALM SETUP"to modify the following items:
n ST ANAL: the switch for ST analysis. Set it to ON to activate the ST analysis or OFF to disable the ST
analysis.
n ST ALM: pick "ON" to enable prompt message and data record during the ST analysis alarm; pick
"OFF" to disable the alarm function, and there will be a beside parameter area ST1. ST alarm is
activated when the result exceeds the upper limit of ST value or falls below the lower limit of ST value.
n ALM LEV: to set the ST alarm level. There are three selections: "HI", "MED" and "LO".
n ALM REC: "ON" means that the system will enable the recorder for alarm recording.
n ALM HI: to set the upper limit of ST alarm. The maximum setting is +2.0. The minimum high limit
should be 0.1 larger than the set low limit.
n ALM LO: to set the lower limit of ST alarm. The minimum setting is –2.0. The maximum low limit
should be 0.1 lower than the set high limit.
10.7.3 DEF point setup
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