Yokogawa Standalone MW100 - Manual (Page 216)

5-3 IM MW100-01E
Specification
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App
Index
Measurement groups: Measurement channels can be divided into up to 3 groups by
module. The measurement interval must be the same for all
channels in the group.
Note that the equivalent of three modules worth of measurement
group settings are entered for the 30-CH Medium Speed DCV/
TC/DI Input Module. You cannot assign to different measurement
groups or change the measurement interval. You must assign all
three slots to the same measurement group.
MATH
Differential computation between channels:
Differential computation between arbitrary channels (DCV, TC,
RTD, DI, strain, resistance, pulse)
Linear scaling: Scalable ranges: DCV, TC, RTD, DI, strain, resistance, pulse
Scaling range: –30000 to 30000
Scaling display range: –32000 to 32000
Decimal point position: Arbitrary
Units: Can be arbitrarily set using up to six characters
Linear scaling accuracy:
Linear scaling accuracy (digits)
= Measurement accuracy (digits) × expansion rate + 2 digits
(rounded up to the decimal place)
Note that the expansion rate = scaling span (digits) /
measurement span (digits)
(Ex.) Measuring range: 6 VDC (integral time of 16.67 ms or
more)
Measurement span: 1.000 to 5.000 V,
Scaling span: For a setting of 0.000 to 2.000
The measuring accuracy for 5.000 V input is as follows
according to the expression above.
± {(0.05% × 5.000 V + 2 digits) × (2000 / 4000) + 2 digits}
= ± {(0.0025 V + 2 digits) × 0.5 + 2 digits}
= ± 4.25
≈ 5 digits (rounded up to the decimal place)
Thus the measuring accuracy when scaling = ± 5 digits
MATH Function Specifications (/M1 Option)
The following MATH functions can be added with options.
Number of MATH channels: 60 (can also be used for communication input)
Number of channels for communication input: 240
Computation start/stop: Execution of computation starts and stops according to
user commands (Start/Stop key, Event/Action function, or
communication commands).
Note that computed data includes the data when
computation started and stopped.
MATH interval: Specify one from among the measurement group numbers,
and perform computation. However, measurement intervals
of 10 ms or 50 ms cannot be specified.
Computation reset/clear: You can reset or clear the computed data via the Event/
Action function, communication commands, or requests from
operations in the monitor screen.
Group reset: Only the MATH channels set by group, up to seven groups,
are reset by the Event/Action function. Can be executed
using the Event/Action function.
5.2 Main Module (MW100-E) Specifications