Topcon CT-80, COMPUTERIZED TONOMETER instruction manual Memo, HOW to Correct Measurement Values

3 Hold the paper and pull it diagonally to cut.

MEMO • To avoid paper jams, cut the paper carefully and evenly.

HOW TO CORRECT MEASUREMENT VALUES

Never set the select switch for more than eight points to avoid MEMO malfunctions.

Though the machine is adjusted for displaying optimal measurement values, the values can be corrected within a -4 ∼ +3mmHg range.

1 Make sure the power is OFF.

2 Open the control panel lid.

3 Using a screwdriver, turn the “” of the select switch.

Select switch

Settings: 0: Base setting	For shipment, the switch is set here.
1: +1mmHg	Base setting + 1mmHg
2: +2mmHg	Base setting + 2mmHg
3: +3mmHg	Base setting + 3mmHg
F: -1mmHg	Base setting - 1mmHg
E: -2mmHg	Base setting - 2mmHg
D: -3mmHg	Base setting - 3mmHg
C: -4mmHg	Base setting - 4mmHg

4 Turn the POWER SWITCH ON.

The measurement procedure is exactly the same as with the correction.

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INDIVIDUAL OPERATIONS