Chemtrac HydroAct HA4, Руководство пользователя

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18 Chapter 2. Overview
manual.
2.4 Operation
2.4.1 User Interface
The HydroAct 4 display is a 4.3“, 480
×
272, 24-bit color display and is best viewed from directly in
front. The user interface is accessed via nine buttons embedded in the membrane overlay. There are
also two status LEDs, showing power and alarm status, and an audible buzzer.
The buttons all have a tactile feedback response. Holding the buttons in will inject multiple key
presses of increasing speed until the button is released. In some cases holding a button will provide
access to a different function. These are highlighted in the manual. The four buttons along the bottom
of the screen, are defined for each screen by the legend above the button. The navigation and Select
buttons below the display are always for navigation of the display. The Up and Down, Left and Right
buttons are used for moving the “Select” target around the display.
The screen displayed once the system is started is either the default “Home” screen (see section
2.4.3), if configured, or the Main Menu.
2.4.2 Main Menu
Example Main Menu
The Menu screen is a standard display in your HydroAct 4 and is a tile based display of all the
different parts or “devices” that make up your analyzer. By using the Up, Down, Left, Right and Select
button it is possible to navigate to any part of the analyzer by highlighting the icon and selecting it.
Devices are firmware modules that control a physical device, such as a sensor, or a purely software
construct, such as a PID control calculation. Some hardware devices have multiple device tiles
associated with them. For example, an Ethernet communications card will add an “Ethernet” tile
which allows physical interface to be configured and a “Modbus TCP” tile allowing access to the main
communications protocol used on the interface.
There are two standard device tiles available on all analyzers, regardless of configuration. The
“Analyzer” tile gives access to information and configuration options for the unit, e.g., selecting the
language and setting the time and date. The “Logs” tile allows access to the status and data logs
stored on the unit.
Selecting a device tile from the menu will open an overview or set up screen. The overview display
gives the user key information for that device and may allow the entering of commonly changed
variables. For example, an overview for a chlorine sensor will display the chlorine reading and sensor
maintenance information, and offer the user a shortcut to calibrate the sensor.
Many screens will have an “Options” button. Pressing this button will produce a pop-up menu on
the display. Some of the items on this menu will have a I next to them indicating that there are further