Hach ORBISPHERE K1200 Basic User Manual page 15

• Allow or deny a user to perform specific actions
• To trace all actions by "ID" in a log file
Once the ID and password are entered the user is allowed to perform actions according to the
"Access level" that has been attributed by the Manager:
Access level Typical rights
0 View parameters, change views
1 + Start / Stop measurements
2 + Calibration
3 + Modify parameters
4 + Modify table "User Access level" + Enable/Disable "Access right"
At startup all menus are locked and a valid ID and password combination is required to get access
beyond the standard measurement view.
User management
Select Access table from the Security menu to show the list of registered users (a maximum of
99 users allowed). They are listed by name, ID, password and access level.
Pressing on an empty line or the Add button displays a window to add a new user. User name, ID,
password (minimum 4 characters) and access level (1 to 4) are required.
Pressing on a registered user displays a window for editing or deleting that user.
View menu
Numeric view
This is the default view and shows the measurement value, sample temperature value, and a graph
showing the measurements during the set time frame. The display is refreshed after each
measurement cycle which can be configured to suit user requirements.
The K1200 low range sensors measure dissolved oxygen up to a maximum value of 5000 ppb.
Below 2000 ppb the measurement cycle interval is 2 seconds. Between 2000 and 3000 ppb the
measurement cycle interval is 30 seconds. Above 3000 ppb the measurement cycle interval is
60 seconds. The K1200 high range sensors measure dissolved oxygen up to a maximum value of
40 ppm. Should the measured concentration go above the maximum value for the sensor then the
measurement cycle is increased to 60 seconds and an Out of range message will be displayed. An
arrow symbol to the right indicates if the value is increasing, decreasing, or remaining constant.
Once the measured value falls below the maximum value, the measurement cycle returns to the pre-
defined interval.
Numeric view configuration
1. Select Configure from the View menu followed by Conf. numeric view to customize the display:
Option
Display temperature
Display mini graph
Display time base
Upper bound
Lower bound
Time base
Description
Selct Channel temperature to display the sample temperature.
Check the box to display the graph.
Check the box to display the time base.
Adjust graph upper limit.
Adjust graph lower limit.
Adjust graph time span.
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