7.1.1 Configure security
Define access levels for all users . This requires a user access level 4.
1. Select Configuration from the Security menu.
Option
Access rights
Max session time
User action logging When enabled every action from a logged on user is recorded in a user log file.
User action log file
7.1.2 Access rights management
Each user has a unique ID and password used to:
• 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. Refer to
Note: If the instrument security is enabled and the login credentials are not known, contact Hach Service support
with the recovery code to get the login credentials. The recovery code shows on the login window. The supplied
login credentials expire in one day. Make sure to change the login credential with known values.
7.1.3 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.
7.2 View menu
7.2.1 Numeric view
This is the default view. Display shows the numeric measurement value identified for each gas
measurement channel used, a graphic showing measurement value evolution during the set time
frame, and sample temperature. The display is refreshed after each measurement cycle ( based on
the oxygen level for LDO sensor). This display can be configured to suit individual conditions and
convenience.
The K-M1100 low range sensors measure dissolved oxygen up to a maximum value of 5000 ppb.
Below 2000 ppb the measurement cycle interval is 4 seconds for 2 channels and 6 seconds for
3 channels. Between 2000 and 3000 ppb the measurement cycle interval is 30 seconds. Above
Description
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.
The user is logged out automatically when the time limit is reached.
The log file is a rolling buffer recording recent actions. Press Clear to empty the log
file.
Start up
on page 14.
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