Datex-Ohmeda F-LM1 Technical Reference Manual page 183

TROUBLE
Message 'Not zeroed'
Message 'Zeroing failed'
Message 'Calibration failed'
Out of range < 40 mmHg
Out of range > 320 mmHg
Zero adj. > 100 mmHg
Out of range
CAUSE
Measurement on, channel not zeroed.
Unsuccessful zeroing of P1 /P2
(number field).
Unsuccessful calibration of P1/P2
(number field), possibly due to
pulsating waveform.
Measurement pressure is beyond
measurement range.
Measurement pressure is beyond
measurement range.
Offset when zeroing is > 100 mmHg
(but < 150 mmHg) from the absolute
zero of the module (with default gain).
Measured pressure is beyond the
internal measurement range of the
invasive pressure measurement.
Troubleshooting
TREATMENT
Zero the channel.
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.
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.
Check transducer level. Zero the
channel.
Check transducer level. Zero the
channel. The patient may also have
high pressure.
Check transducer. The waveform may
hit the top and the numeric display not
shown.
The waveform hits the top and the
numeric display not shown. Check
transducer and its level. Zero the
channel.
Document No. 8000060-1
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