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3 Device overview
Cover with viewing window and pressure tight housing (5 and 6)
The cover and the pressure tight housing encapsulate the ultrasonic electronics
against the potentially explosive atmosphere.
During operation, information can be read through the viewing window from the
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display and status indicators of the LEDs.
Electrical connection (Terminal strip)
More information on the electrical connection can be found here:
Chapter 8.3, „Connecting the device electrically" on page 103
Display screen
First line
Shows the name of the parameter (coordinates) called-up, e.g., p-maximum value
(maximum pressure value).
Second line
Shows the value of the parameter (coordinates) called-up, e.g., 52.00 bar a.
Third line
Shows the coordinate designation, e.g., A-06, thus column A, line 06.
Forth line
Shows the warning, alarm and status messages, e.g., -01 power failure.
Manual USM GT400 · EN10 · May 2021
Fig. 3.3: Ultrasonic electronics display
The calibration switch is open. The value of the parameter can be
changed.
The calibration switch is closed. The value of the parameter cannot
be changed.
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