Canon TX-20 Full Auto Tonometer User Manual Page 83

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7 Troubleshooting
83
Warning
Code Cause Remedy
231
Auto-alignment stopped because the limit of motion (to
right) of the measurement unit was detected during auto-
alignment.
1) Record the message code, contents (including error
codes) and then execute [OK].
2) Be sure that the patients forehead and chin are firmly
against the forehead rest and chin rest and then do
measurement again.
232
Auto-alignment stopped because the limit of motion (to
left) of the measurement unit was detected during auto-
alignment.
233
Auto-alignment stopped because the limit of motion (up) of
the measurement unit was detected during auto-alignment.
234
Auto-alignment stopped because the limit of motion
(down) of the measurement unit was detected during auto-
alignment.
235
Auto-alignment stopped because the limit of motion
(forward) of the measurement unit was detected during
auto-alignment.
236
Auto-alignment stopped because the limit of motion
(backward) of the measurement unit was detected during
auto-alignment.
237
Auto-alignment stopped because the set stop position of
the nozzle was detected during auto-alignment.
1) Record the message code, contents (including error
codes) and then execute [OK].
2) Do the following and do the measurement again.
Press the LIMITER button to reset the position where the
nozzle stops.
Be sure that the patient’s head and chin are firmly
against the forehead rest.
238
Operation stopped because a button or the operation lever
was operated during auto-alignment.
1) Record the message code, contents (including error
codes) and then execute [OK].
2) Do the measurement again.
241
Measurement stopped because an intraocular pressure
measurement error occurred during full auto-alignment
measurement.
1) Record the message code, contents (including error
codes) and then execute [OK].
2) Do the measurement again.
242
The measured intraocular pressure is over the value set for
the [Upper IOP Warning].
243
The measured intraocular pressure is below the value set
for the [Lower IOP Warning].
244
Auto-alignment stopped because the measurement unit
and the chin rest may be interfering with each other.
1) Record the message code, contents (including error
codes) and then execute [OK].
2) Be sure that the patients head and chin are firmly against
the forehead rest.
L-IE-5191C_TX-20.indb 83 2013/07/18 13:10:41
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