Topcon TRK-1P - Page 45

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PREPARATIONS
SHIFTING THE REFRACTORY POWER
The refractory power (S value) can be shifted. Before shipment, it is set to "+0.375."
1 In the "INITIAL MENU screen," select "INITIAL SET" and get the "INITIAL SET" screen.
2 Press the Set item change button and bring the cursor to " DPTR SHIFT."
3 Press the Set value change button to increase the value, or to decrease.
The value can be set between -1.000D and 1.000D with 0.125D steps.
4 Press the Set item change button ; the cursor moves to the next item.
CHANGING THE METHOD OF CORNEA DIAMETER MEASUREMENT
The method of cornea diameter measurement can be selected between using an actual
image or a static image. Before shipment, it is set to "OFF" (measurement using actual
image).
1 In the "INITIAL MENU screen," select "INITIAL SET" and get the "INITIAL MENU screen."
2 Press the Set item change button and bring the cursor to "C.D MEMORY."
3 Press the Set value change button or and select "ON" (measurement using
static image) or "OFF" (measurement using actual image).
4 Press Set item change button ; the cursor moves to the next item.