Simex SWE-N55L, User Manual

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User manual - METER SWE-N55L
Figure 7.1 E xample of definition of permissible range of input signal -
“ Lo r” and “Hi r” parameters
The
“Lo r”
parameter determines lower border of the permissible range calculated
due to expression: I
min
= 4 mA - 4 mA × “Lo r” %.
The “Lo r” value can be set from 0 to 12.4%.
Parameter “Hi r” determines the upper border of the permissible range accordingly
to the expression: I
max
= 20 mA + 20 mA × “Hi r” %.
The value of
“Hi r”
can be set from 0 to 19.9%
In example no 1 of the DISPLAY VALUES CALCULATION paragraph the
procedure of the permissible input range determining is presented in details.
If the measurement value do not exceeds permissible measurement range but
displayed value exceeds range -999 ÷ 9999, the warning “
-Ov-”
is displayed rather
than the calculated result.
7.3.3. ”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 6.2)
“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.
“HdiS” - type of displayed values:
“ rEAL” - current value is displayed,
“
HOLd” - peak (drop) value is displayed,
20
i
“Lo r” = 10,0% (0.4 mA)
“Hi r” = 5,0 % (1 mA)
4 21
permissible measurement range
measurement result is displayed
regardless on nominal range exceeding
nominal measurement range (4-20mA)
[mA]
20 22 3.6 3.5
I
min
I
max
display
message
“-Lo-”
display
message
“-Hi-”
i