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FUNCTIONAL DESCRIPTION
4.4. DISPLAY DESCRIPTION
1. Battery icon is displayed when the battery voltage is getting low.
2. Hourglass icon is displayed when the instrument performs an internal checkup.
3. Lamp and read status indicator.
4. Main LCD display
5. NTU measurement units. When average or continuous mode is selected, the “NTU” tag blinks
for each new displayed value. For conversions in other units see Measurement Units section.
6. AVG icon is displayed when the Signal Average Mode is selected.
7. Secondary LCD display
4.5. BEEPER
A long beep indicates an error or an invalid key pressed. A short beep indicates that current operation
is confirmed.
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