Optional Power Supply; Turning On/Off The Device; Adjusting The Lighting - Bresser Science TFM-201 Bedienungsanleitung

16 | Imprint

16 Optional power supply

NOTICE
Avoid deep discharging of the rechargeable battery!
If the light will be weaker without any reason, it indicates that the battery power is low. Then the the
device must be connected to a power supply immediately to avoid deep discharging of the re-
chargeable battery. Deep discharging can cause irreparable damage to the battery and the electron-
ics.
This device can be operationed alternatively via the integrated battery without need of a power supply.
When disconnecting the device from the power supply, it switches to battery powered operation auto-
matically.

17 Turning on/off the device

1. Move On/Off switch to position 'I' to turn on the device.
2. Move On/Off switch to 'O' position to turn off the device.

18 Adjusting the lighting

Illustration 6: Lighting unit
1 Rotary knob for brightness adjustment
Illustration 7: Lighting unit
1 Rotary knob for brightness adjustment
This device provides an illumination with a permanently installed LED light source.
NOTICE
Do not operation the device on highest brightness over a longer time!
This will reduce the lifetime of the LED.
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