Hanna Instruments HI 901 - Manual (Page 23)

3-5
USER INTERFACE
3.2.1.3 Arrow Keys
These keys have the following functions:
• Move the on-screen cursor.
• Increase and decrease the stirrer speed and other settings.
• In the alphanumeric screen, to select a letter or to navigate through menu options.
3.2.1.4 Numeric Keys
Keys to - Used for numeric entries.
- Toggles between positive and negative values.
- Decimal point.
- Initiates entry of exponent for scientific notation.
3.2.1.5 Enter Key
Both , keys perform the same functions:
• Accepts alphanumeric data entry.
• Executes the default (underlined) virtual option key.
3.2.2 Display
The titrator has a large graphical display with built-in backlight. The main screen with short
explanations is presented below.
Temperature
reading
Temperature
compensation
status
Time and date
Virtual option keys
End point volume