Pressure Module, M-P and Pressure Temp Module, M-PT
Document No. 800 1013-1
21
4
TROUBLESHOOTING
4.1
Troubleshooting chart
See also the
User's Reference Manual
for more troubleshooting procedures.
4.1.1
Invasive blood pressure
Trouble
Cause
Treatment
Abnormally low
pressure
Transducer wrongly positioned.
Check mid-heart level and reposition transducer.
No pressure
Defective transducer.
Check transducer.
No pressure module plugged in.
Check the module.
No waveform selected on screen.
Check selected pressure waveforms by pressing
Monitor Setup key and selecting modify
waveforms.
Check that pressure transducer open to patient.
Not zeroed-
message
Measurement on, channel not zeroed.
Zero the channel.
Zeroing failed-
message
Unsuccessful zeroing of P3 (number field). Possibly due to pulsating pressure waveform.
Open the transducer to air and zero the channel.
Offset is > 150 mmHg. Open the transducer to air
and zero the channel.
Defective transducer. Replace it and zero the
channel.
Calibration failed-
message
Unsuccessful calibrating of P3 (number
field), possibly due to pulsating waveform.
Turn the transducer to sphygmomanometer and
try again (zeroing takes place first).
Gain is beyond the limits (
±
20 % of the default
gain). Replace the transducer.
Out of range
≤
40
mmHg
Measurement pressure is beyond
measurement range.
Check transducer level. Zero the channel.
Out of range >320
mmHg
Measurement pressure is beyond
measurement range.
Check transducer level. Zero the channel. The
patient may also have high pressure.
Zero adj. >100
mmHg
Offset when zeroing is >100 mmHg (but
<150 mmHg) from the absolute zero of the
module (with default gain).
Check transducer. The waveform may hit the top
and the numeric display not shown.
Out of range
Measured pressure is beyond the internal
measurement range of the module.
The waveform hits the top and the numeric
display not shown. Check transducer and its
level. Zero the channel.
