User manual - RATEMETER STI-73
“mUL”
- multiplication coefficient. The value by which current measurement result is
multiply to recalculate it to desired unit (e.g. linear speed); can be set in range 0 to
999999, value
0 is interpreted as 1 000 000.
“div”
- divide coefficient. The value by which current measurement result is divided to
recalculate it to desired unit (e.g. linear speed); can be set in range 0 to 999999,
value
0 is interpreted as 1 000 000.
Parameters
“mul”
and
“div”
can be used to rescale of measurement value - setting
proper values recalculation of rotational speed to linear speed can be done automatically.
“ZEro t”
- maximum delay time of successive revolution. This parameter is defined with 0.1
second precision, in range 0 ÷ 39.9. If delay between successive revolutions are
longer than defined value, device displays „0” instead of current measurement.
If parameter
“ZEro t”
is set to value lower than parameter
“mEAS t”
, the
“mEAS t”
value is used as maximum delay to next revolution time
.
Expression „successive revolution” means the number of input pulses equals to
value of parameter
“PULSEn”
.
“mEAS t”
- minimum
measurement window
width. The „
measurement window
” means the
time period after which counted pulses are recalculated and displayed, and it is
similar to refresh rate. This parameter can be set with 0.1 sec. resolution in range
0 ÷ 19.9 sec.
If time delays between successive pulses are longer than
“mEAS t”
time, then
measurement window width is automatically fitted to input frequency.
7.3.3.
“FiLtEr” menu
This menu contains parameters referred to additional data (result) filtration.
“vALUE”
- this parameter sets filtration rate. It can be set to values from 0
(no filtration ) to 5 (strongest filtration – time window about 3.5 sec.).
“droP”
- this parameter defines minimum percentage change of measured value which turns
off (temporally) data filtration. Value of this parameter can be changed in range:
0 ÷ 199,9%. Main purpose of this parameter is acceleration of displaying data
changes, when sudden changes of instantaneous measurements value occur (while
parameter
“vALUE”
is set to high values).
7.3.4.
”briGHt”
parameter
This parameter allows user to set bright of the LED display, bright can be set to
conventional values from 1 to 8.
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