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User manual - RATEMETER STI-N118
Parameter
“FrEq” (Hz)
Minimum duration
of low and high states
Permitted duty cycle
for max. frequency
”10”
5 ms
5%-95%
”15”
3,4 ms
5%-95%
”20”
2,5 ms
5%-95%
”30”
1,7 ms
5%-95%
”40”
1,3 ms
5%-95%
”50”
1 ms
5%-95%
”100”
500 µs
5%-95%
”300”
167 µs
5%-95%
”1 000”
50 µs
5%-95%
”3 000”
33 µs
10%-90%
”10 000”
33 µs
33%-66%
”50 000”
not controlled
not controlled
Tab.7.1.Allowable settings of “FrEq” parameter, and
related with them minimum durations of logical states
“PULSen” - input divider, can be set in range 1 to 19 999. This parameter defines the
number of pulses per single revolution . Value 0 is interpreted by firmware as 1
pulse/rev.
i
This parameter must be set correctly to let device works properly.
“PrEc”
- precision of result displaying. There are available settings from “0” (precision of 1
unit) to “0.00000” (precision with 5 digits after decimal point)
“unit”
- The unit of rotational speed used for recalculation of current measurement can be
set to:
“SEC”
“min”
“hour”
- result expressed in revolutions / second
- result expressed in revolutions / minute
- result expressed in revolutions / hour
“F or P” - kind of value shown on the display:
“Freq”
- frequency (rotational speed),
“PEriod” - period (time per one revolution).
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