Sper-scientific 850045 Dissolved Oxygen - DO Pen Uživatelský manuál stáhnout pdf (Strana 14)

1. Replace the batteries when the low battery icon

is displayed in the upper left corner of the LCD.

Use 4 new AAA batteries.

2. To replace the batteries, open (turn counter-clockwise)

the Battery Cover (Fig., 1-6).

3. Ensure the Battery Cover is secured after replacing the

batteries.

BATTERY REPLACEMENT

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Sper-scientific 850045 Dissolved Oxygen - DO Pen Uživatelský manuál Strana 14