200 Series Human Interface Definition
Document # S200-HID
Rev 1.2 02/28/2017
Page 1 of 1
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All 200 Series instruments have been designed around a standard Human Interface
protocol. This allows identical operation of the two panel switches between all
instruments while still allowing multiple functions. This document is a generic outline of
the functionality of the switches, based on the various functional states of the instrument.
Top Button
The top button is the action button. It invokes different screen displays, allows selection
of values and increments or decrements values. Examples of these actions are:
1. Moving between display screens
2. Selection of an action from a menu
3. Changing a value from within the setup menus
4. Entering a value during flight (clock instrument only)
Bottom Button
The bottom button is the navigation button. It will allow the cursor on the screen to move
between allowable selections. Examples of these actions are:
1. Selection of different cylinders (EGT and CHT) in the Single Cylinder mode
2. Selection of different tanks (Fuel Level)
3. Selection of limits and functional items from within the setup menus
4. Time field selection (clock instrument only)
There is one exception to the functionality of the bottom button. This is from the Primary
Display (the screen that first comes on from power up). Pressing the button will display
the instrument core status and support data.
General
1. Each instrument contains detailed button options in the Operations Guide.
2. During setup, instructions are provided on screen and use of the buttons is as
noted in this document.
Intensity Control
Press and hold the top button for 5 seconds to activate the Dimmer Control menu.
Select the “Up Arrow” and press the top button to disable external intensity and increase
intensity. Select the “Down Arrow” and press the top button to decrease the intensity and
enable external intensity control.
Select the “Save” option and press the top button to save your selection and return to
normal operations.
The Dimmer Control menu is not available during instrument setup.