F9, F9 Express Fetal & Maternal Monitor User Manual Troubleshooting
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A3.4 Trouble with Ultrasound FHR Monitoring
Inconstant trace
/ display
The patient is overweighted.
Improper ultrasound transducer
position.
Adjust the position of the
transducer till the better signal is
received.
Superfluous aquasonic coupling
gel.
Wipe off superfluous aquasonic
coupling gel.
Frequent fetal movements.
Request the patient to calm down
and stay still.
Inadequate aquasonic coupling
gel.
Use recommended aquasonic
coupling gel quantity.
Record maternal heart rate
wrongly.
Change the position of the
ultrasound transducer.
The transducer is not well placed
in position, and the mixed noise
has been recorded.
Adjust the position of the
transducer.
Use paper recommended
by manufacturer
The paper drawer is not locked.
Slide the paper drawer in until
both latches are locked in
position.
Adjusting nuts of the print head
are unbalanced.
Contact the manufacturer for
service.
A3.5 Troubles with DECG Monitoring
Inconstant trend
Inconstant display
Use a new spiral electrode
Bad contact of reference electrode
and patient
Use a new spiral electrode
The DECG cable has not been
fixed firmly
Fix an attachment pad at the
DECG cable.