User manual - RATEMETER STI-94
Input type, range of displaying values, characteristic of conversion, decimal point
position and measure filtering ratio, are user configurable parameters. 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 6.1). 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 the analogue output 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
20
”timE”
measure
time
”timE”
”PEA”
”PEA”
real measurement result
display value
i
