1-14
IM MW100-01E
MATH
Differential computation between channels and linear scaling are possible. Linear scaling
converts the measured values for a specific purpose (scaled values) using the following
equation.
Scale value =
(X – SP
min
) × (SC
max
– SC
min
)
SP
max
– SP
min
+ SC
min
X: Measured value
SP
max
: Specified span maximum
SP
min
: Specified span minimum
SC
max
: Specified scale maximum
SC
min
: Specified scale minimum
MATH Types Notation
Differential computation between channels Delta
Linear scaling Scale
MATH (/M1 Option)
Expressions using measured and computed data as variables can be entered and
executed on channels dedicated for computation, and the results can be displayed and
saved. Computations are executed every measurement interval (shortest interval is 100
ms).
For details, see section 1.13, “MATH Functions (/M1 Option).”
Remote RJC ( RRJC)
When the item to be measured is located at a great distance, you can setup relay
terminals near the item, measure between the relay terminal and the input terminal of the
universal input module (reference channel) using thermocouples, and use the resultant
value as the reference junction compensation of the temperature measurement. By
connecting the relay terminal and the input terminal of the universal input module using
copper wires and connecting the item to be measured and the relay terminal using
thermocouples, you can make temperature measurements without having to use large
quantities of high-cost thermocouples.
MW100
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.
Burnout
When the input mode is set to thermocouple (TC), you can set the burnout detection
behavior. Measured values become “range over” during detection.
Detection Behavior Notation
No detection Off
Measured values fixed at +range over Up
Measured values fixed at –range over Down
1.3 Functions of the Main Module
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