Program Levels
8
Basic level
At power-on, RT28U enters Basic level.
At this level, the device indicates
the measured input value (PV)
with a resolution, according to
the
Point Position
parameter.
♦
If the whole part of PV cannot be
entirely displayed, the unit generates
a blinking 'overflow' message
(
oL
or
-oL
, depending on PV sign).
♦
If PV is out of its operating range
(the input range according
to Table 1, extended by 5%
on both sides), the device displays
blinking symbolic message:
<_>
(under-range) or
{+}
(over-range).
When PV is out of physical range,
the unit displays
---
.
♦
Upon entering Basic level, RT28U
may display the
ini
message,
indicating that some time is necessary
for filter initialization.
♦
The
noi
message may appear
as a result of the peak filter operation
(see '
Input filtration
').
Set-point adjustment (Level L1)
♦
To enter
Set Point 1
adjustment mode,
press, hold, and turn UP
the encoder knob until
%[1
appears
on the display. Release the knob
to view the set-point value.
♦
To enter
Set Point 2
adjustment mode,
follow the same procedure,
but turn the encoder DOWN.
