Yokogawa Data Acquisition with PID Control CX2000 - Manual (Page 19)

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IM04L41B01-65EN
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Index
Viewing and Creating Setup Data
Input Type and Span
Mode, Range/Type
Select from the list of choices from the pull-down menu.
Input Type Mode Range/Type
DC Voltage VOLT 20 mV, 60 m V, 200 mV, 2 V, 6 V, 20 V, 50 V
Thermocouple TC TypeR, S, B, E, K, J, T, N, W, L, U
Resistance temperature detector RTD Pt100, JPt100, Cu10*, Cu25*
ON/OFF input DI LEVEL (voltage level), CONT (Contact)
Measurement/Display OFF SKIP None
* /N1 option
Note
If SKIP is selected, settings such as Delta/Scale/Sqrt and Range/Type are discarded.
Span L, Span U
Sets the upper and lower limits (full scale) of the display.
When a value outside the range is entered or when the span L and span U values are set
to the same value, they are corrected when the data are checked.
Input value Values within the
measurable range
Span L (0% on display)
Span U (100% on display)
Measured value
Difference Computation/Scaling/Square Root Computation
DELTA: Displays the difference between the input and the reference channel.
Note
Difference computation is performed between channels that have different [Mode] and
[Range/Type] settings. The decimal position of the computed result is set to that of the
channel computing the difference. If the number of digits to the right of the decimal of the
reference channel is greater than that of the channel computing the difference, the reference
value below the least significant digit of the channel computing difference is rounded
beforehand.
SCALE: Converts the input value to a value in the appropriate unit.
SQRT: Computes the square root of the input. The result is converted to a value in the
appropriate unit. This setting can be used only when the input mod is set to VOLT.
Input value
Measured value on the reference channel
DELTA SCALE
SQRT
Input value
+
Span L Scale L
Decimal position
Unit
Decimal position
Unit
Span U
Scale
conversion
Scale U
Input value
Span L
Span U
Span L Scale L
Span U
Scale
conversion
Scale U
Measured value Measured value
Measured value
–
Span L, Span U
Sets the appropriate upper and lower limits (see figures above).
When a value outside the range is entered or when the span L and span U values are set
to the same value, they are corrected when the data are checked.
2.3 Setting the Measurement Channels