Revision D 170 Series Monitor 9-5
2003023-001
Troubleshooting: External UA Troubleshooting
External UA Troubleshooting
Table 9-4. External UA Troubleshooting
Problem Probable Cause Possible Solution
Tocotransducer not recording contractions.
Transducer not properly connected to
monitor.
Transducer not properly placed.
Transducer not secured to patient.
Defective transducer/cable assembly.
No maternal contractions.
UA Reference range exceeded.
Ensure that transducer is firmly attached to
monitor.
Reposition transducer.
Secure or re-apply transducer to patient.
Replace transducer/cable assembly.
Wait.
Loosen belts or remove transducer from
patient. Press
UA Reference pushbutton
while no pressure is applied to transducer
button. Re-apply transducer. Do not
overtighten belt. Press
UA Reference
pushbutton
again between contractions.
Flashing “+” sign. Relative pressure > 100.
Press the UA Reference pushbutton
between contractions.
Flashing dashes “– –” show in place of
numerics in uterine activity display.
UA Reference pushbutton pressed before
UA circuits stabilized.
(Trimline Tocotransducer only.)
UA Reference range exceeded due to over-
tightening belt.
Transducer defective.
Service required.
You must wait ten seconds following
powering on the monitor and/or connecting
to the
UA connector.
Loosen belts or remove transducer from
patient. Press
UA Reference pushbutton
while no pressure is applied to transducer
button. Re-apply transducer. Do not
overtighten belt. Press
UA Reference
pushbutton
again between contractions.
Replace transducer.
Call for service.