18
7.3 Key Functions
Table7-2
NO Key
Power key
Starts HART communications function (ADT223A only).
Selects the millivolts, volts, pulse or frequency.
Selects the resistance or switch test (measure function only).
Selects the RTD or thermocouple type.
Selects mA (current).
Selects pressure measurement or the pressure sourcing unction ( nly ressure odule s vailable).
Starts task management.
Enters the Setup menu.
Captures and saves snapshots (press and hold to access the snapshot management).
Exits the current page, cancels the operation. In the calculator page it, provides the clear function.
Confirms the selection or operation. In the calculator page, it is the equals (=) button.
Performs the function defined by the context label.
Used whenever a numeric entry is required.
Activates the measurement or sourcing windows, fine tunes the source value in Basic Mode.
Selects the item from the drop down list. In the calculator page, it provides the arithmetic buttons(+ - ÷ ×).
Soft Keys
Numeric Keypad
1
12
11
10
9
8
7
6
5
4
3
2
13
14
15
Instruction
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