Yokogawa DAQWORX - Manual (Page 51)

2-21 IM WX103-01E
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Index
Logger
MX100
Thermocouple*
Copper wire
Copper wire
Thermocouple*
Thermocouple*
Relay terminal (to be furnished by the user)
Reference channel
Input terminal
* Use the same type of thermocouples.
Settng the Measurement Span
Set the minimum and maximum values of the range that is actually measured within the
measurable range.
Settng the Scale
Set this item when linearly scaling the measured values. Set the scale by entering the
maximum and minimum values corresponding to the maximum and minimum values of
the measurement span and selecting the decimal point position of the scaled value (see
the figure below). The selectable range of the scale is -30000 to 30000. The decimal
point position can be set to 4 (XXXXX), 3 (XXXXX), 2 (XXXXX), 1 (XXXXX), or 0 (XXXXX).
Also, you can specify units for the scale value. You can set the units using up to six
characters.
0 3[V]
0
100
Span minimum
Scale minimum
Span maximum
Scale maximum
Settng the Reference Channel for Dfference Input
Set this item when making the difference between the measured value of the channel
and the measured value of the reference channel the measured value (referred to as
difference computation). The reference channel can be set to a channel that is scaled.
Difference computation can be executed even if the measurement range of its own
channel and that of the reference channel are not the same.
If the decimal point position setting is different between its own channel and the reference
channel, the decimal point position of the measured value of the reference channel is
matched to that of its own channel, and the difference is computed.
Example: When the measured value of the channel set to difference input is 10.00 and
the measured value of the reference channel is 100.0
The computed result is 10.00 – 100.0 = –90.00.
Set the reference channel for difference input to a measurement channel that has the
Monitor check box selected.
Settng the Remote RJC Reference Channel (Vald Only When the Input
Mode Is Set to RRJC (TC))
This item sets the reference channel when the input mode is set to RRJC (TC).
Set the reference channel for remote RJC to a channel that meets the three conditions
below.
2.4 Settng the Measurement Condtons (Measurement Channel Settngs)