Hach-Lange ORBISPHERE 510_51x Basic User Manual - Manual (Page 13)

In addition, and to prevent any damage to the sensor electronics, the use of a purge safety backup
unit (ORBISPHERE Model 32605) is highly recommended to ensure the supply of purge gas remains
uninterrupted to the sensor in the event of a mains power outage.
The above ORBISPHERE accessories are explained in more detail in the TC Sensor Installation
and Maintenance manual.
User interface
Instrument controls
The instrument front panel provides:
• A touch screen acting as display, touch pad and keyboard.
• A LED, showing when the instrument is on.
Turning instrument On and Off
The instrument portable versions have a power switch located on the back panel. There is no power
switch for the wall or panel instruments. The mains must be disconnected to turn the instrument off.
Menu navigation
Pressing the “menu” button in the header bar calls the main menu. The
display is made of three columns:
• The left shows the menu options
• The center shows a tree view of the position inside the menu
structure
• The right has the following generic controls:
• Up - Return to previous menu (one step back)
• Main - Jump directly to main menu
• Close - Close the menu and go back to the measurement display.
• Help - Help topics concerning current menu
Virtual keyboard
When a value or text is to be edited a virtual keyboard will appear on screen and can be used like a
standard keyboard. Press CAP to access special keys. When input is complete press the Enter key
to confirm and exit the virtual keyboard. During editing, the edited field name is displayed along with
units where applicable.
Security menu
Note: When the instrument is started for the first time security is disabled. It is highly recommended that each user
be entered into the system and given appropriate access rights as soon as possible to avoid any unauthorized
access.
Configure security
Define access levels for all users . This requires a user access level 4.
1. Select Configuration from the Security menu.
Option Description
Access rights When enabled only registered users can access the menus. When disabled (default)
all menus are freely accessible and no ID is recorded against any action in the log file.
Max session time The user is logged out automatically when the time limit is reached.
English 13