PPA5xx/15xx user manual
5-1
5 Special functions
5.1 Display zoom
The PPA5xx/15xx normally displays many results on the
screen in a combination of small font size (no zoom) and
up to 4 values in a larger font size (first zoom level). There
are two further zoom levels which can display up to four
and up to three selected values respectively at larger font
sizes (second and third zoom levels).
To set the data values for the larger font size, first, return
to no zoom by pressing ZOOM as many times as
necessary. Press the ZOOM key to view the presently
selected data, and press DELETE to clear the selection.
A flashing box surrounds the first available result. The
flashing box is moved around the available results using
the cursor keys, UP, DOWN, L and R. Pressing the ENTER
key selects the result for zoom and the box ceases to
flash. Further results (up to four in total) can then be
selected using the cursor keys in the same way – a solid
box remains around the already selected item, and a new
flashing box appears.
Having selected the desired results, pressing the ZOOM
key steps through the zoom levels until the highest is
reached, at which point a further press returns to no
zoom.
Note that any of the parameters selected for the zoom
function can be used as the input for the alarm monitoring,
and datalog.
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