VIASYS Nicolet Elite, User Manual, Page: 21 / 24

21
Troubleshooting
Elite
Problems
Problem: Solution:
Unit will not turn on a. Battery is discharged. Replace battery or recharge for
(All Models). several hours before use.
b. Unit does not operate while recharging, remove from the
recharger.
Power LED flashes ( Elite 100, 100R). a. Main unit battery is low and should be
Heart rate display flashes ( Elite 200, 200R) replaced or recharged.
Main unit recharge light does not come on a. Verify that the wall transformer is plugged in and that the
( Elite 100R, 200R). wall outlet has power.
b. Verify that the cable from the wall transformer is plugged
into the unit.
Main unit is on, but no audio signal is present a. Headphones interrupt the internal speakers, remove the
(All Models). headphones.
b. Probe is not plugged in.
Static a. Use an ample supply of ultrasonic coupling gel. Hold the
(All Models). probe steady once a signal has been detected.
b. Some coupling agents, such as baby oil, maycause extra
static.
c. Reduce the volume level.
Weak or no fetal signal detected a. Fetus is too young. Wait a few weeks before trying the
(All Models). test again.
b. Use plenty of coupling gel.
c. Try turning up the volume.
Weak or no blood flow signal detected a. Use plenty of coupling gel.
(All Models). b. Try turning up the volume.
c. If using 8MHz vascular probe, adjust angle of
probe to optimize signal.
No fetal heart rate displayed with audible tones a. Fetal heart rate is outside of display range.
( Elite 200, 200R). See Specifications Section.
b. The detected signal is blood flow or placental flow. The
characteristics of placental flow sounds produce a smooth
Doppler envelope. A very smooth envelope will not
correlate well, so no rate is displayed. Reposition the
probe.
No vascular heart rate is displayed with a. Heart rate range is outside of display range.
audible tones (
Elite
200, 200R). See Specifications Section.
Unit shuts off during use. a. The unit shuts off after approximately 3 minutes if not in
(
Elite
200, 200R) use. Large signals are used to reset the power-off-timer.
Faint signals may not reset the timer.
(All Models) b. Battery is low. Replace or recharge.
Inaccurate vascular heart rate a. Certain flow waveforms contain large display ( Elite 200,
200R). harmonics which can cause heart rate doubling.