INST No INE -403-0P0
−
17
−
6.3.1 Setting data
The followings are the setting data of calibration curve.
Data name
Disp
lay
Setting
range
Defaul
t value
Remarks
(1) Calibration curve No.
CH 1 to 99
1
(2) Polynomial coefficient
a
0
A0 0 to ±99999
0.0000 Effective numeric: 5 digits
(2) Polynomial coefficient
a
1
A1 0 to ±99999
0.0000 Effective numeric: 5 digits
(2) Polynomial coefficient
a
2
A2 0 to ±99999
0.0000 Effective numeric: 5 digits
(2) Polynomial coefficient
a
3
A3 0 to ±99999
0.0000 Effective numeric: 5 digits
(3) Correction expression coefficient
b
0
B0 0 to ±9999.9
0.0000 Effective numeric: 5 digits
(3) Correction expression coefficient
b
1
B1 0 to ±9999.9
1.0000 Effective numeric: 5 digits
(4) Output low limit moisture
Hi 0 to 9999.9
0.00
Decimal digit depends on
specification.
(4) Output high limit moisture
Hi 0 to 9999.9
100.00 Decimal digit depends on
specification.
(5) Low limit alarm moisture
AL 0 to 9999.9
0.00
Decimal digit depends on
specification.
(5) High limit alarm moisture
AH 0 to 9999.9
100.00 Decimal digit depends on
specification.
(6) Preset moisture
PS 0 to 9999.9
0.00
Decimal digit depends on
specification.
(1) Calibration curve number
An optional number from 1 to 99 can be designated as the calibration curve. It is
designated sequentially from “1” usually.
(2) Polynomial coefficient “a
0
to a
3
”
Assume that the calibration curve is represented by third-degree or lower-degree
polynomial as shown below.
y = a
3
x
3
+ a
2
x
2
+ a
1
x + a
0
where, “y” is the moisture value (%H
2
O) and “x” is the absorbance (“CH0” data of this
moisture meter).
(3) Correction expression coefficient “b
0
to b
1”
These coefficients are provided for primary expression correction (zero and span
correction) with reference to moisture value “y”. Assuming that the moisture value after
correction be “Y”, we obtain,
y = b
1
y + b
o
(4) Output low limit moisture, output high limit moisture
These moisture values are specified as the output low limit and output high limit on the
analog output scaling. These values are scaled to be 4mA at the output low limit moisture
and 20mA at the output high limit moisture.
(5) Low limit alarm moisture, high limit alarm moisture
The low limit alarm activates when a measured value is lower than the low limit alarm
moisture, while the high limit alarm activates when a measured value is higher than the
high limit alarm moisture. Since the detector unit does not provide any alarm output
function, the setting display unit is required when an alarm output is necessary.
(6) Preset moisture
By turning on the preset output by key operations or through communications, the
moisture value being set as preset moisture is displayed and output, regardless of the
measured value.
6. Operation
