Canon TX-20 Full Auto Tonometer - Manual (Page 28)

28
3NamesofParts
DATA Screen
This screen shows measurements.
6
5
4
3
2
1
8 9 10 7
1 Intraocular pressure
: Shows measurements from highest to
lowest reliability in order 1 to 10. (Measurement
number: Up to 10)
: Shows measurements from newest to
oldest in order 1 to 10. (Measurement number: Up
to 10)
2 Eye being measured
R: Right eye
L: Left eye
3 Level of received light
Indicates the amount of light received from light
reflected from cornea when measuring intraocular
pressure. The number of lines increases as the
amount of received light increases.
If there is little received light, light reflected from
the cornea may be obstructed by the eyelid or
eyelashes. However, it is also affected by the
corneal reflectivity of the patient.
4 Low reliability
This mark appears when the analysis of the results
or reliability of the measurement is considered
low. Measured values that have this mark are not
included in the standard value calculation.
5 Intraocular pressure standard value
Representative intraocular pressure value that was
statistically derived from measured values. Measured
values with a low reliability mark are not used.
6 External device connection status
Shows the status of external device connection.
: USB device is connected
: Error has occurred in USB device connection
: LAN is connected
: RS-232C device is connected
No display: No connection
7 ID key
Press to switch to the PATIENTID screen.
8 MEASURE key
Press to switch to the Measurement screen.
9 MENU key
Press to switch to the MENU screen.
10 DELETE key
Press to clear all the measurements.
The measurement values are deleted from the
instrument’s memory.
L-IE-5191C_TX-20.indb 28 2013/07/18 13:10:21