YOKOGAWA MuR10000 Manual page 21

IM 04P01B01-01E
• Delta Computation
The value obtained by subtracting the measured value of another channel (called
the reference channel) from the input value of the channel set to delta computation is
used as the measured value of that channel. The reference channel must be assigned
to a channel whose channel number is less than that of the channel on which delta
computation is specified. The channel on which delta computation is specified is
automatically set to the same range type as the reference channel.
Channel set to delta computation
Input
value
–
Measured value on the reference channel
Note
A channel whose input type is set to DC voltage, TC, or RTD can be designated as a reference
channel. However, channels set to scaling or square root computation cannot be designated.
• Scaling
The input values are scaled to values in the appropriate unit to be used as measured
values.
Input value Measured value
10 V
0 V
• Square Root Computation
When the input type is DC voltage, the square root of the input value is calculated, the
result is scaled to a value in the appropriate unit, and used as the measured value of
the channel. Also, the low-cut function (input less than a given measured value is fixed
to 0% (scale left value)) can be used.
Channel set to square root computation
Input value
√
Note
The square root computation on the recorder uses the following formula.
F = ( F - F )
x max min
where Vmin (leftmost value of span) < Vmax (rightmost value of span)
Fmin (leftmost value of scale after scaling) < Fmax (rightmost value of scale after
scaling)
Vx is the input voltage and Fx is the scaled value
<Related Topics> Setting the input range: Section 5.1
For the procedure to set the functions, see section 1.10, "Function Setup Guide."
Measured value
300.0°C
–100.0°C
Scaling
Measured value
Measured value
Result of square
root computation
Low-cut value
Input value
V - V
min
x
+ F
min
V - V
max min
1.2 Measuring Input Section
1-3
1
2
3
4
5
6
7
8
9
10
11
12
App
Index