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ENGLISH
• Large Spot: For normal fundoscopy.
• Small spot: For reduced reflection with small pupils.
• Semi Circle: For reduced reflection with small pupils.
• Fixation Star: For determination of central or eccentric fixation, very suitable for examining children.
• Red-free filter: For contrast-enhancement when assessing fine vascular disorders.
• Color Coded 18 lenses for excellent resolution (Black for +, Red for -).
+1 2
3
4
6
8
10 15 20
-1 2
3
4
6
8
10 15 20
Sigma Battery Handle
Range of applications
The sigma battery handle should only be used as a power source for Sigma instruments.
Instrument connector
Internal thread in handle head (a).
Operating the Handle
Push switch (b) down which will turn the power on and the lamp will light up. This position is indicated by a
RED indicator comes into view.
To switch off the instrument, push switch up.
Batteries
2 alkaline cells (AA/LR6).
Handle with rechargeable system
• The handle with rechargeable system has all the characteristics of a standard Sigma.
• A metal cap (cod. 31588) converts standard handles into rechargeable ones.
• The metal cap can be used both with “AA” batteries and the rechargeable battery.
For grips with rechargeable system, a 2.5 V lithium-ion battery is used (code 31587), which is included in the
set.
Note
The metal cap can be purchased separately, thereby converting a standard handle into a rechargeable one.
Changing the batteries
Unscrew the end-cap (c) and shake out the old batteries. Insert new batteries as shown in Fig. 2. Take care
that the poles point in the right direction as indicated.
Cleaning
The handle can be cleaned with a cloth soaked with disinfectant; however it cannot be dipped into liquids.
• Do not use the equipment in case it is damaged. Apply to your retailer.
• Periodically check the battery conditions, making sure that no sign of corrosion or oxidation is pres-
ent. In case of necessity replace them with new alkaline ones.
• Carefully handle the batteries as the liquids they contain can irritate skin and eyes.
• Before being used, thoroughly check the product. The same operation shall be carried out after
cleaning.
• Check that the connection between the head and the handle is perfect and that the On/Off Button
works correctly.
• If the light is intermittent or in case it does not turn on, check the bulb, the batteries and the electrical
contacts.
