User manual - METER SRT-N118
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 6.1). 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
).
Figure 6.1. Process of peaks detection
6.3.
CONTROL OF THE RELAY OUTPUTS
The control of the object (measured signal) is realized via relay outputs. Front panel
LEDs named „
R
” indicates the state of particular relay output.
If device is not equipped with one or more relay outputs, menus refer to this relays
are available, but apply to LED indicators only. In such case LEDs indicates
exceeding of particular thresholds.
Modes of the control can be changed depend on the values of parameters
“SEtP”
,
“SEt2”,
“HYSt”
,
“modE”
,
“t on”
,
“toFF”
,
“unit”
and
“AL”.
Depend on
“modE”
parameter, relays
can be not used or controlled over one or two thresholds values.
If one threshold is used (Figure 6.2) the relay can be turned on (
“modE”
=
”on”
) or off
(
“modE”
=
”oFF”
) when the input signal value is contained in
zone A.
If two thresholds are
used (Figure 6.3) the relay will be turned on when value of input signal is contained in
zone A
(
“modE”
=
”in”
) or
zone B
(
“modE”
=
”out”
) and turned off if the signal is contained in the
second one.
19
”timE”
measure
time
”timE”
”PEA”
”PEA”
real measurement result
display value
i
