User manual - METER SUR-457
Figure 6.3. Definitions of measurement ranges in mode Pt100
In the measurement mode user can check main thresholds values. After pressing
[^]
or
[v]
button, name of the threshold (e.g.
”rEL1”
) and his value will be displayed on the display
in alternating mode. If
[^]
or
[v]
will be pressed in 5 sec again, the next threshold will be
displayed, else the device comes back to the measurement mode. If a
free access
is enabled
(see description of
”SECu” menu
), user can change the value of particular threshold pressing
button
[ENTER]
(see:
PARAMETERS EDITION
).
All accessible parameters can be changed by entering the menu (see:
DEVICE
PROGRAMMING
). Use the local keyboard or the remote controller to do it. (Note: all
parameters can be remote changed via RS-485 interface).
Configuration of the device (via menu or RS-485 interface)
does not stop
measures
.
6.2.
DETECTION OF THE PEAK VALUES
controller is equipped with peaks detection function. It can detect a peaks
of the input signal and display their values. Presets connected with this function are placed in
”HOLd”
menu (see description of
”HOLd” menu
). The detection of the peak can be done if
the measured signal raises and drops of value at least equal to parameter
”PEA”
. Detected
peaks are displayed during the time defined by parameter
”timE”
. If a new peak will be
detected while one is displayed, this new peak will be displayed and display time counter will
be cleared
(Figure 6.4).
If no peaks are detected while time
”timE”
elapses
,
device starts to show the current
value of input signal again. If „
HdiS
”=”
HOLD
” then setting parameter
"timE"
=
0.0
causes
holding peak value until
[ESC]
button is pressed.
If „
HdiS
”=”
rEAL
” then value
"timE"
=
0.0
means no holding. Displaying peak value is signalized by flashing most right decimal point.
The relays/LEDs and analogue outputs can be controlled depend on the current value of
input signal or the peak value (see
”HOLd” menu
).
21
i
permissible measurement range
”-Lo-” message
displayed
”-Hi-” message
displayed
-100°C
+600°C
