User manual - METER SUR-457
When more then one color control is active, the highest priority has relay with
the lowest number (and in sequence: higher relay number → lower priority). The
next one is additional threshold control (“
C Pr
” parameter). The lowest priority has
alarm state control (“
C AL
” parameter).
“dir”
- this parameter defines display colour change depending on the displayed value
direction change:
”morE”
- display will change its colour to the one specified by “C Pr” parameter, when
displayed value is higher than
thrhysteresis
”LESS”
- display will change its colour to the one specified by “C Pr” parameter, when
displayed value is lower than
thr hysteresis
“SEtP”
- additional threshold value (range -999 ÷ 9999 ). Negative values can be input by
selecting a “-” sign on first digit (to change value use
[^]
and
[v]
buttons).
Threshold is the medium value of relay hysteresis.
“HYSt”
- Hysteresis of colour indication (range 0 ÷ 999). The display colour can change
when an input signal is out of
threshold-hysteresis
to
thhysteresis
zone.
Presented parameters should be set ensuring that values ”
SEtP
” + ”
HYSt
” and
”
SEtP
”
-
”
HYSt
” do not exceed the measured range.
“CrES”
- permission to use any local key to confirm display colour change.
This acknowledgement causes one-time display return to its basic colour, and
deletes all events which implicate display colour changes to active colour.
”oFF”
- option disabled,
”on”
- option enabled.
7.3.9.
”HOLd” menu
This menu contains parameters connected with peak detection function. See also full
description of the peak detection function in paragraph:
DETECTION OF THE PEAK VALUES
“modE”
- the type of detected changes of the input signal, can be set to values:
”norm”
- peaks
, peak and next drop of the input signal of value equal at least
“PEA”
,
”inv”
- drops, drop and next peak of the input signal of value equal at least
“PEA”
,
“PEA”
- minimal detected signal change classified as peak or drop (see Figure 6.4)
“timE”
- maximum time of displaying of the peak (drop) value, can be set from 0.0 to 19.9
sec, with 0.1 sec. resolution. 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.
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