Ditel MICRA-D, Инструкция по эксплуатации

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28 27
5.1.3. Tachometer Rate
In this configuration the meter can be easily scaled to
read direction, speed, flow or time directly in the desired
units by entering only two parameters: Input Frequency
and Desired Display.
DIRECT OR REVERSED SCALING
Direct scaling.
The relationship between frequency
and display is directly proportional, that is, the higher the
frequency, the greater the display. This will be the mode
to choose in most applications.
Reversed scaling. The relationship between frequency
and display is reversed, that is, the higher the frequency,
the lower the display. A typical application of this mode
is explained in the example of page 28.
The scaling procedure consists of entering a display
value corresponding to an input value. A straight line
plotted from this point to zero (input=0, display=0)
establishes a linear relationship between frequency and
display.
INPUT FREQUENCY
For scaling purposes, the input frequency value can be
programmed within all range of the display (the
frequency limits are given in page 57 of the present
manual).
The input frequency can be programmed with 0, 1 or 2
decimal places. The decimal point position has value, for
example, a frequency value of 200Hz can be
programmed as 200, 200.0 or 200.00
DESIRED DISPLAY
In this phase it is programmed the display value
corresponding to the programmed input frequency.
The decimal point can be located in any of the digits of
the display to help reading the display in the desired
units.
28 27
5.1.3. Tachometer Rate
In this configuration the meter can be easily scaled to
read direction, speed, flow or time directly in the desired
units by entering only two parameters: Input Frequency
and Desired Display.
DIRECT OR REVERSED SCALING
Direct scaling.
The relationship between frequency
and display is directly proportional, that is, the higher the
frequency, the greater the display. This will be the mode
to choose in most applications.
Reversed scaling. The relationship between frequency
and display is reversed, that is, the higher the frequency,
the lower the display. A typical application of this mode
is explained in the example of page 28.
The scaling procedure consists of entering a display
value corresponding to an input value. A straight line
plotted from this point to zero (input=0, display=0)
establishes a linear relationship between frequency and
display.
INPUT FREQUENCY
For scaling purposes, the input frequency value can be
programmed within all range of the display (the
frequency limits are given in page 57 of the present
manual).
The input frequency can be programmed with 0, 1 or 2
decimal places. The decimal point position has value, for
example, a frequency value of 200Hz can be
programmed as 200, 200.0 or 200.00
DESIRED DISPLAY
In this phase it is programmed the display value
corresponding to the programmed input frequency.
The decimal point can be located in any of the digits of
the display to help reading the display in the desired
units.