GF U1000 V2 - User Interface

Design and function Instruction manual
6
A periodic voltage pulse acts on the transducer crystals and produces an ultrasound beam at
a certain frequency. The beam is first transmitted by the downstream transducer (blue) to the
upstream transducer (red).
The beam is then sent in the opposite direction, i.e. from the upstream transducer (red) to the
downstream transducer (blue). The time taken for the ultrasound to pass through the liquid in
this direction is slightly shortened by the speed at which the liquid flows through the pipe.
The resulting time difference T1 – T2 is directly proportional to the speed at which the liquid
flows through the pipe.
5.3 User Interface
1
LED 4 - 20 mA is lit when the current output is active
2
LED Pulse is lit when the pulse output is active
3
Button (selection button) switches backwards and forwards through the displayed
options
4
Button (reduce value) reduces the value incrementally in the digital input fields
5
Button (increase value) increases the value incrementally in the digital input fields
6
Button (confirm input) confirms the value displayed, ends data input, changes to
another menu or the flow values screen
7
LCD display with backlighting (2 rows x 16 characters)
Principle of
operation