Interacoustics VisualEyes 515 - Rotational Chair Error Messages; Rotary Chair Speed Error; Patient Safety Error; Emergency Stop Error

D-0126440-A – 2020/08
VisualEyes™ 515/525 Instructions for Use - US Page 30
4.8 Rotational chair error messages
4.8.1 Rotary chair speed error (applicable for Orion and System 2000 rotational chairs)
If the rotary chair has not been calibrated previously, then the chair’s tachometer and signal traces will not
align, resulting in the chair spinning slower or faster than intended. The operator gets the error message as
shown in Figure 4.8-1. The operator should calibrate the chair from the System Default Settings screen.
Chair Speed Error Occurred.
(> 20 d/s). Perform calibration from System Default Settings.
Figure 4.8-1 Chair speed error message.
4.8.2 Patient safety error (applicable for all type of rotational chairs)
If the patient’s age lies outside the required age range for performing a rotary chair test, the software will give
an error (Figure 4.8-2) stating the patient cannot perform the test if the velocity or frequency exceeds the
allowable limit for the patient’s age.
Velocity is set to 100 which exceeds the recommended value
for a patient below 5 years.
Figure 4.8-2 Patient safety error message.
4.8.3 Emergency stop error (applicable for Orion and System 2000 rotational chairs)
If the operator presses the Emergency Stop button during the rotary chair test, the chair will stop, and the
software will present an error message (Figure 4.8-3). The operator can resume rotary chair testing by
disengaging the emergency stop and restarting the test.
Emergency stop button was engaged or Chair Controller was
powered off. Turn on the Chair Controller and disengage the
Emergency Stop in order to perform rotational testing.
Figure 4.8-3 Emergency stop button pressed error message.
4.8.4 Chair servo error state error (applicable for Orion and System 2000 rotational chairs)
If the Orion or System 2000 reclining chairs try to spin and fail due to obstruction, chair brake (System 2000)
or hardware failure, the software will detect the error as an emergency stop error first, and when the test is
restarted, the software will give the chair servo error state message (Figure 4.8-4). The operator can resume
rotary chair testing with the Orion chair by pressing the Emergency Stop button until the light turns off in the
switch (approximately 20 seconds), then disengage the emergency stop and restart the test. The operator
can resume rotary chair testing with the System 2000 reclining chair by switching off the chair power switch
for approximately 20 seconds, then turn on the power switch and restart the test.
Chair is not moving due to servo error state. Press the
emergency stop till the red light in the switch goes off. Then try
again.
Figure 4.8-4 Chair servo error state error message.