Chemtrac HydroAct 4, User Manual

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2.4 Operation 25
Login Timeout If no user activity is detected within this given time period while the main menu or
home screen is displayed, then the current user will be logged out. The time is in HH:MM:SS
format.
Default Access If enabled, then no user authentication will be attempted when accessing a device
tile or using a quick access function from the home screen. Instead the user will be allowed
access at the security level set out in the boxes below it.
2.4.5.4.1 Security access levels
Access to many of the analyzer functions is secured using password protection. To allow flexible
security profiles the HydroAct 4 is split into six access areas:
System Controls access to analyzer-specific settings and communication options.
Sensor Controls access to sensor devices.
Signal Controls access to signal devices, such as digital inputs.
Output Controls access to output devices, such as relays and analog outputs.
Control Controls access to control devices, such as PID.
Event Controls access to event devices, such as timers and schedulers.
With each of these areas, operations have been assigned to four security levels:
None No access to the assigned area is enabled.
Basic Users with this access level can see information and perform basic maintenance tasks. Users
generally can not change any settings with this access level.
Intermediate Users with this access level can perform routine maintenance tasks and change common
settings.
Advanced Users with this access level can perform all available actions.
Using this security model it is possible to assign specific tasks to individual users. For example, It is
possible to allow a user to calibrate sensors (intermediate access for sensors), but not change PID
settings (no access for controls). Access to restricted functions will require the entry of the operator’s
security password.
2.4.5.5 Users
To add, remove users or modify access rights, select:
Options
→
Setup
→
Users