Optika Italy B-150V Serie Manuel D'instructions page 14

9.7 Use with rechargeable batteries
This operation can be done only with "R" models.
When the microscope is plugged with the power supply, the LED
indicator for the battery recharge
• Power supply connected, battery low: LED is RED. When
charging is completed, it turns GREEN.
• Power supply not connected, microscope off: LED is always
OFF.
• Power supply not connected, microscope on, battery
charged: LED is GREEN.
• Power supply not connected, microscope on, battery almost
low: LED is RED.
9.8 Use of the polarizer (optional)
1. Remove the specimen from the stage.
2. Looking inside the eyepieces, rotate the polarizer until the
darkest position is achieved.
3. Once the dark is achieved ("extinction" or "Crossed Nicol"
position) it is possible to begin the observation.
is lit. (Fig. 15)
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F ig. 15 F ig. 15