Datascope System 98 Service Manual page 11

1.2.3 AUXILIARY KEYS
Figure 1-3
AUXILIARY
KEYS
LAB INFLATION IAB DEFLATION
una an ur ARE DEFLATE
TRIGGER SELECT IAB FREQUENCY [AB AUGMENTATION |
AE tit
VAV
12. ECG GAIN
13.
The ECG GAIN LED 1s illuminated when ECG, PACER V/A-V or PACER
A is selected as the trigger source. When ECG GAIN is illuminated and the
NORMAL key is pressed, a fixed gain (x1000) ECG signal is used for
triggering the System 98. When either of the ARROW keys are pressed, the
ECG signal gain can be varied over a range of 0.15 x Normal Gain to 3.0 x
Normal Gain. The ECG Gain setting is posted in the "ECG GAIN" field on
the display.
PRESSURE THRESHOLD
The PRESSURE THRESHOLD LED 1s illuminated when PRESSURE is
selected as the trigger source. When PRESSURE THRESHOLD is
illuminated and the NORMAL key is pressed, the System will automatically
select the optimal threshold value and adapt to changes in systolic pulse
height. When either ARROW key is pressed, the blood pressure trigger
threshold can be manually adjusted in fixed steps of 1 mmHg within a7 to
30 mmHg range. The current threshold is posted with the trigger source in the
"Trigger" field on the display. The arterial waveform is also annotated to
indicate when the system triggered and what point it triggered on.
NOTE: When manually adjusting Pressure Threshold, reassess the proper
timing of balloon inflation and deflation and correct as required.
INTERNAL RATE
The INTERNAL RATE LED is illuminated when INTERNAL is selected as
the trigger source. When INTERNAL RATE ss illuminated and the
NORMAL key is pressed the internal trigger rate is set to 80 bpm. When
either ARROW key is pressed, the internal trigger rate is adjusted by 5 bpm
over che range of 40 - 120 bpm. The current internal rate is posted in the
"heart rate" field of the display.
System 98 Service Manual 1.7
Chapter 1, Operation