YOKOGAWA Daqstation DX2000, User Manual

Page: 15 / 366

1-3
IM 04L42B01-01E
Overview of Functions
1
2
3
4
5
6
7
8
9
10
11
12
13
App
Index
Difference computation
Low-cut
Square Root Computation
Calibration Correction (/CC1 Option)
Input
value
Measured
value
Measured
value
Input
value
Input
value
Input
value
Input
value
Measured
value
Measured
value
Measured value on the reference channel
–
The measured value of the channel is set to the
difference with respect to the measured value of the
reference channel.
Converts the unit to obtain the measured value.
Takes the square root of the input value and converts
the unit to obtain the measured value.
Corrects the input value with the characteristics
specified by segments to obtain the measured value.
Number of break
points: Up to 16
Pulse Input (/PM1 Option)
Linear Scaling
10 V
0 V
300 ° c
–100 ° c
a
b
x
a b
B
B
X
A
A
X = (B – A) + A
x – a
b – a
The contact changes from open to close.
The signal level at the input terminal changes from high
to low.
5 ms or more
100 Hz or less
Pulse
Contact
or
Open
collector
Pulse that can be counted Input to the DX
Count on the DX
Measured
value
Output
value
For square root computation, measured values below
the specified value are cut.
For 1-5 V input, values below 0 % are cut.
Result of square root
computation
Low-cut value
DX
For the setting procedure, see section 3.3. For the setting procedure, see section 3.3.
For the setting procedure, see section 3.9. For the setting procedure, see section 3.3.
For the setting procedure, see section 3.3. For the setting procedure, see section 3.10.
( )
Note
Difference computation is executed even if the input type or range is not the same between
the difference computation channel and the reference channel. The difference is computed
discarding the decimal place and unit, and the decimal place and unit of the difference
computation channel are applied.
Example 1: If the input value of the difference computation channel is 10.00 and the
measured value of the reference channel is 100.0, the computed result is
10.00 – 100.0 = –90.00.
Example 2: If the input value of the difference computation channel is 10.00 V and the
measured value of the reference channel is 5.00 mV, the computed result is
10.00 V – 5.00 mV = 5.00 V.
Calibration Management (/CC1 option; release numbers 4 and later)
You can use this function to make sure that calibration is performed regularly.
When you enable calibration management, a screen (the calibration notification screen)
appears to notify you in advance that the calibration due date is approaching.
For the setting procedure, see section 3.13.
1.1 Input Section