KONICS KRN1000 SERIES, User Manual

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(b) Linear
It applies low-limit scale and high-limit scale to low-limit input value and high-limit input value
and displays this values.
In case of low-limit input value: -5V, high-limit input value: +5V, low-limit scale: -1000, high-
limit scale: 1000,
and current input value is 2V, display value is 400.
Display value
=
Input value − Low − limit input value
High − limit input value − Low − limit input value
× (High − limit scale − Low − limit scale) + Low − limit scale
400 =
7
10 × 2000
− 1000
(c) Root
In case voltage, current input type, this function calculates by Root ( √ ) for the input value.
Differential pressure signal of differential pressure flow meter is calculated by Root (
√
) for
the desired pressure flow. This function is used for measuring flux by input value.
In case of low-limit input value: -5V, high-limit input value: +5V, low-limit scale: -1000, high-
limit scale: 1000,
and current input value is 2V, display value is approx. 673.32.
Display value
= �
Input value − Low − limit input value
High − limit input value − Low − limit input value
× (High − limit scale − Low − limit scale) + Low − limit scale
673.32 =
�
7
10
× 2000 − 1000
(d) Square
In case voltage, current input type, this function calculates by square for the input value.
Reverse of Root, flux signal is calcualted by suqare for differential pressure signal.
In case of low-limit input value: -5V, high-limit input value: +5V, low-limit scale: -1000, high-
limit scale: 1000,
and current input value is 2V, display value is -20.
Display value
= �
Input value − Low − limit input value
High − limit input value − Low − limit input value
�
2
× (High − limit scale − Low − limit scale) + Low − limit scale
− 20 = �
7
10
�
2
× 2000 − 1000
(e) Two Unit
For compound pressure, if input pressure is lower than atmospheric pressure (0), it displays
the degree of a vacuum with mmHg unit. If input pressure is higher than or same as
atmospheric pressure (0), it displays positive pressure with kg/cm
2
unit.
.
When using Two Unit function, low-limit value is fixed as -760mmHg and the setting range of
kg/cm
2
is 1 to 35.
In case of Two Unit, decimal point position is limited among 0, 0.0, 0.00. When using Two
Unit function, display unit is changed as mmHg or kg/cm
2
automatically.
This function has two different unit values and it is impossible to calcuate by recording
method and digital filter and ignore it.

Setting range: 1 to 35

Two Unit function is available only when connecting shunt resistance 250Ω , and 4-
20mA (shunt) input type.