Tecfluid XT5 - Manual (Page 15)

In an XT5H converter, if during a configuration sequence a HART TM command, which
should be attended, is received, the local configuration sequence will not be valid and all
the data of that configuration sequence will be lost. The screen will return to the normal
working screen and the word “PROG” will be displayed to show that this event has
occurred. The word “PROG” will be turned off when touching either of the two keys (↑) or
(←).
3.3 Zero offset adjustment
In order to obtain a perfect linearization of the instrument, it is recommended to make an
adjustment of the zero offset.
IMPORTANT:
The flow meter is delivered with the zero offset adjusted. Do not make a
new adjustment if not necessary. An adjustment not done properly can become in
incorrect flow rate values.
In order to make the adjustment, it is necessary that the flow rate through the instrument
is zero.
The first step is to deactivate the adjustment. To do this, press the key (←) and the
following screen is displayed.
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Using the (↑) key we change the positive flow direction from left to right (R) to right to left
(L).
Note: In a Flomid sensor the left and right of the sensor are when looking at the sensor in
a horizontal pipe and with the earth connection stud at the back. In a Flomat sensor left
to right flow is indicated by the arrow on the sensor.
When the flow rate is negative the volume totalizer will not count.
3.2.7 Empty pipe detection
In the last screen the empty pipe detection (EP) can be enabled or disabled, using the (↑)
key to change from ON (enabled) to OFF (disabled)
Press the key (↑) until the word OFF appears. Press then the keys (←) & (↑). With this,
the adjustment is deactivate.
Before doing the next step, be sure that the pipe is full and that there is not flow rate
through the instrument.
Press the key (↑) again and change until the word ON appear. Press the keys (←) & (↑)
and the zero offset adjustment is completed.