Program Levels
7
A PV around
the lower limit
of the bargraph
programmed range
does not visualize on it.
Programming order
♦
Set full access to device parameters.
♦
Adjust the parameters.
♦
If needed, restrict the access again
by adjusting the
Access Control Level
parameter.
Access control (Hidden level)
♦
Hold
depressed while turning
the power supply on and until
QxL
appears.
♦
Set access level according to Table 1.
Basic level
At power-on, TI250 enters Basic level.
At this level, the device shows on the display
the measured input value (PV) with a resolution,
according to the
Point Position
parameter,
and on the bargraph – the relative position of PV
within the programmed range of the bargraph.
♦
If the whole part of PV cannot be entirely
displayed, the unit generates blinking
'overflow' messages (
oL
or
-oL
, depending
on PV sign). If PV is out of the bargraph
programmed range, the corresponding
endmost LED of the bargraph blinks.
♦
If PV is out of the device physical operating
range, blinking symbolic messages –
<_>
(under-range) or
{+}
(over-range) –
appear on the display, and the respective
endmost LED of the bargraph blinks.
♦
Upon entering Basic level,
BB
I250 may display
the
ini
message, indicating that some time
is necessary for filter initialization.
In such case, the bargraph goes off.
♦
The
noi
message may appear as a result
of the peak filter operation (see '
Input filtration
').
In such case, the bargraph goes off.
Set-point adjustment (Level L1)
♦
To enter
Set Point 1
adjustment mode, press
and hold
until
%[1
appears on the display.
Release the key to view the set-point value.
♦
To enter
Set Point 2
adjustment mode,
follow
the same procedure, but start with the
key.
