Measurement interval, integration time, and filter, Measurement synchronization, Common mode voltage – Yokogawa PC-Based MX100 User Manual
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IM MX100-01E
The following inputs can be used on MXLOGGER or the MX100/DARWIN API (sold
separately). These inputs cannot be used with the MX100 Standard Software.
Input
Measurement Range Type
Rated Measurement Range
DC voltage
60 mV (high resolution)
0.000 to 60.000 mV
1 V
–1.0000 to 1.0000 V
6 V (high resolution)
0.0000 to 6.0000 V
Thermocouple
PLATINEL
0.0 to 1400.0°C
PR40-20
0.0 to 1900.0°C
NiNiMo
0.0 to 1310.0°C
WRe3-25
0.0 to 2400.0°C
W/WRe26
0.0 to 2400.0°C
N (AWG14)
0.0 to 1300.0°C
XK GOST
–200.0 to 600.0°C
Measurement Interval, Integration Time, and Filter
The table below shows the available measurement intervals. The module is equipped
with an integrating A/D converter. The selectable integration time varies depending on
the measurement interval as shown in the table below. For details about the relationship
between noise and integration time, see section 2.7, “Measures against Noise on the
MX100” In addition, the type of noise rejection filter switches as shown in the table below.
Measurement Interval
Integration Time
Filter
Rejected Noise and Notes
500 ms
1.67 ms
Rectangular
600 Hz and its integer multiples*
1 s
16.67 ms
60 Hz and its integer multiples
20 ms
50 Hz and its integer multiples
Auto
Automatically detects the power supply
frequency and set 16.67 or 20 ms
2 s
36.67 ms
Trapezoidal
50 Hz or 60 Hz and their integer multiples
5, 10, 20, 30, 60 s
100 ms
Rectangular
10 Hz and its integer multiples
*
Since the power supply frequency noise is not rejected, the measured vales may fluctuate especially
with temperature measurement. In such cases, set the measurement interval to 1 s or higher, or use
the 4-CH, High-Speed Universal Input Module or the 10-CH, Medium-Speed Universal Input Module.
Measurement Synchronization
The module is equipped with a single A/D converter, and measurement is made
sequentially. Therefore, measurements of each channel are not synchronized.
Common Mode Voltage
The common mode voltage between channels in a single module is 120 VACrms when
the signal is applied continuously. The common mode voltage between modules and
between a module and earth is 600 VACrms when the signal is applied continuously.
1.5 Functions of the 30-CH, Medium-Speed DCV/TC/DI Input Module