Zeroing The Internal Pressure Sensor; Freezing Of Measurement Value - Ecom DP Operation Manual

3.1. Zeroing the internal pressure sensor

If the instrument is attached to a metal surface with the magnetic
holders, the zero point may shift.
Please reset the zero point before measurement.
As the difference pressure sensor can drift because of its
sensitivity in the zero point (also by attaching to metal
surfaces by magnetic holder), it is possible to reset the
zero point.
- Press <F2> (DP->0) to activate the function for zero-
point correction of the pressure sensors.
- Press <F3> (DP1) to zero the value of the pressure sen-
sor 1.
- Press <F4> (DP2) to zero the value of the pressure sen-
sor 2.
- Press <F2> (ESC) to quit the menu.
Different functions can be called up with the function key
<F1>. The current seizure of the other function keys
(<F2> - <F4>) is shown on the display. Press one time
<F1> to display the functions „Hold", „Min/Max" and
„Print".

3.2. Freezing of measurement value

- Press <F2> (Hold) to „freeze" that measurement value
displayed at the time the key is pressed (active function
= Hold indication blinks).
- Press again <F2> (Hold) to quit the „freezing" and the
current value will be displayed.
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