User's Manual

BIS
23-9
Numeric Zone
The numeric zone is to the right of the plot and the moving waveform on the
monitor and is usually updated every 2-seconds. Some items, such as sweep
speed, are only updated when the selection is changed.
Display Fonts:
• The BIS value is displayed in a large font.
• The units of measure are displayed in a small font.
• The remaining text is displayed in a small font.
Figure 23-6: Plot area numerics
Alarm Display
When the alarms are turned ON, the high and low alarm limit values are
displayed. When the alarms are turned OFF, BIS ALM OFF is displayed. When
the alarms are temporarily suspended, BIS ALM SUSP is displayed.
The alarm display consists of a block of reverse video text containing either BIS
ALM OFF or BIS ALM SUSP. They are mutually exclusive, and only one will be
displayed in the numeric area.
• Turn the alarms OFF by touching ALARM OFF on the Alarm Limits menu.
• Temporarily suspend the alarms by pressing the ALARM SUSPEND button
on the monitor.
Alarm Suspend
Press the ALARM SUSPEND button on the monitor to temporarily turn off the
audible alarm for 3-minutes. The text BIS ALM SUSP replaces the alarm limits.
The BIS number continues to flash if the limit is exceeded.
When the temporary time has elapsed, the display returns to normal behavior. If
the audible alarm is enabled, the alarm tone will sound again, and the limit
number will flash.
In the split screen display, the bell symbol displays in reverse video when the
alarms are enabled but suspended. During an alarm violation, the bell symbol
flashes in reverse video.
SR=0%
SQI=100%
EMGL=20dB
SEF=30Hz
MF=30Hz
BIS
BIS value
Suppression Ratio value
Signal Quality Index value
Alarm limits
EMGL value
Spectral Edge Frequency value
Median Power Frequency value
60
45