Yokogawa PC-Based MX100 - Manual (Page 31)

1-22 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
RTD
(Measurement current: 1 mA)
Cu10 at 20°C alpha = 0.00392 –200.0 to 300.0°C
Cu10 at 20°C alpha = 0.00393 –200.0 to 300.0°C
Cu25 at 0°C alpha = 0.00425 –200.0 to 300.0°C
Cu53 at 0°C alpha = 0.00426035 –50.0 to 150.0°C
Cu100 at 0°C alpha = 0.00425 –50.0 to 150.0°C
Pt25 (JPt100 × 1/4) –200.0 to 550.0°C
Cu10 GE (high resolution) –200.0 to 300.0°C
Cu10 L&N (high resolution) –200.0 to 300.0°C
Cu10 WEED (high resolution) –200.0 to 300.0°C
Cu10 BAILEY (high resolution) –200.0 to 300.0°C
Pt100 GOST –200.0 to 600.0°C
Cu100 GOST –200.0 to 200.0°C
Cu50 GOST –200.0 to 200.0°C
Cu10 GOST –200.0 to 200.0°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
100, 200 ms 1.67 ms
Rectangular
600 Hz and its integer multiples*
500 ms
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
1 s 36.67 ms Trapezoidal 50 Hz or 60 Hz and their integer multiples
2 s 100 ms Rectangular 10 Hz and its integer multiples
5, 10, 20, 30, 60 s 200 ms Cos Fc = 5-Hz low-pass filter
* Since the power supply frequency noise is not rejected, the measured vales may fluctuate especially
with temperature measurement and 20 Ω measurement. In such cases, set the measurement interval
to 500 ms or higher.
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 when applied
continuously is 120 VACrms, and the resistance for RTD is 50 VACrms.
The common mode voltage between modules and between a module and earth is 600
VACrms when the signal is applied continuously.
1.6 Functions of the 6-CH, Medium-Speed Four-Wire RTD Resistance Input Module