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DT4220 E
20180619-V0
6.3. Functions of the push-buttons during measurement
The DT4220 E is a modern type of process indicator family. The old
type (DT4220) and this new type have same functions and same
options but the function of buttons at menu not compatible.
The following figure shows the push buttons:
(1) ► Menu button: Entering the menu.
When you push this button, the instrument will ask for a password
(code) in accordance with Chapter 7.1. Functions of the push-
navigation in the menu
buttons during
been given, it enters into the menu. During this time the instrument
works continually and the outputs are refreshed. If no keys are
pressed for a period of 5 minutes, the instrument exits from menu.
(2) ▲ button: displaying firmware version.
The firmware version remains on the display as long as the button is
being pressed.
Format: YY.M.DD: YY = year, M = month, DD = day.
(3) ◄ Esc button: displaying the status of the limit output and clearing
the alarm (alarm acknowledgement).
It's functionality depends on the operating mode of displaying the
limits. In default factory setting this function is 'dynamic', therefore It
displays the limit output state as far as this button is pressed.
, when the right code has
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