8-18
Differential recording
①
A channel data
②
D channel data
B channel data
Differential operation
recording in channel C
Reference value
Differential operation
recording in channel E
-
-
=
=
8-7 Differential recording setting [CALC.]
Differential recording comprises 2 methods. One records a difference between
①
A channel data and B channel
data in channel C, while the other records a difference between
②
D channel data and a reference value in channel
E. (This function is provided in LE5100 only. In case of LE5200, this function is executed by the mathematical
configuration.)
1. CH No. setting
Designate channel A, B or D optionally from CH No. 1
-
36 and also designate channel C or E in differential
operation recording optionally from CH No. 37
-
72.
2. Analog recording range setting
Set a range without fail before starting differential recording. (See Caution 4)
For channel C or E to be differential recorded, record a [Difference value] as data. For this purpose, set the
analog recording range by the lower-limit and higher-limit of chart recording. Set a unit, as occasion demands.
For the analog recording range, estimate a [Difference value] in advance before setting it.
(Caution 1)
Use CH No. 37
-
72 as differential operation recording channels.
(Caution 2)
Carry out differential operation by neglecting the unit.
(Caution 3)
The analog recording range of the differential operation recording channel is set by setting channel
parameters. For setting the channel parameters for operation output channels, refer to the next
page. Error contents are displayed if normal range setting is done.
(Caution 4)
Differential operation of an input channel where a scale is set by DC voltage input is carried out by
a scaling value (actual scale value).
2チャンネル間の差記録例
2チャンネル間の差記録例
An example of differential recording
between 2 channels
An example of differential recording
between 2 channels
Analog recording range of channel A
Analog recording range of channel D
Analog recording range of channel B
Data (325
℃
)
Reference value (350
℃
)
Data (325
℃
)
Data (350
℃
)
Estimated difference
Estimated difference
Analog recording range of
channel C
± differential recording when a
difference of data in channels
A and B is [0
℃
]
Analog recording range of
channel E
± differential recording
when the reference value
is [0
℃
]
Содержание LE5100
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