Yokogawa PC-Based MX100 - Manual (Page 34)

4
IM MX100-0E
Setting the Measurement Span
Set the minimum and maximum values of the range that is actually measured within the
measurable range.
Setting 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. You
can also assign a unit (up to 6 characters) to the scaled value.
Setting the Reference Channel for Differential 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. Set the reference
channel to a measurement channel with the same measurement range and whose
Monitor check box is selected.
Setting the Remote RJC Reference Channel (Valid Only When the Input
Mode Is Set to RRJC (TC)
Set the reference channel for the remote RJC. The thermocouple type of the reference
channel must be the same.
Setting the Time Constant of the First-Order Lag Filter (Valid Only When
the Input Mode Is Set to Something Other Than DI)
A first-order lag filter is available. Set the time constant (time until 63.2% of the output
value is reached) for the case when the measurement interval is set to 1 s.
Setting the Burnout (Valid Only When the Input Mode Is Set to TC)
Select the burnout detection behavior from the following.
• Up:
Fix the measured value to +Over (over the upper limit of the measurement
range) when a burnout is detected.
• Down: Fix the measured value to -Over (over the lower limit of the measurement
range) when a burnout is detected.
• Off: Burnouts are not detected.
Setting the RJC (Valid Only When the Input Mode Is Set to TC)
Select whether to use the internal reference junction compensation function of the
input module or an external reference junction compensation function. When using the
external reference junction compensation function, set an appropriate reference junction
compensation voltage in the range of -20000 µV to 20000 µV.
Initial Balancing of Strain Input Channels (Initial Unbalance Value
Adjustment)
When configuring a bridge circuit with a strain gauge, the bridge circuit will not
necessarily be balanced even if the strain of the circuit under test is zero due to the slight
deviation in resistance of the strain gauge, and the measured value may not be zero (the
value in such cases is called the initial unbalanced value).
Therefore, when taking measurements you must first balance the bridge and, if the strain
is zero, obtain a measured value of zero. This is called initial balancing. (setting the initial
unbalanced value to zero).
Operations of the MX100 Standard Software