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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 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

RTD

(Measurement current: 1 mA)

Pt100 (noise resistance)

–200.0 to 600.0°C

JPt100 (noise resistance)

–200.0 to 550.0°C

Pt100 GOST

–200.0 to 600.0°C

RTD

(Measurement current: 2 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 (noise resistance)

–200.0 to 250.0°C

JPt100 (noise resistance)

–200.0 to 250.0°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

10 ms

1.67 ms

Rectangular

600 Hz and its integer multiples*

50 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

100, 200 ms

36.67 ms

Trapezoidal

50 Hz or 60 Hz and their integer multiples

500 ms

100 ms

Rectangular

10 Hz and its integer multiples

1, 2, 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. In such cases, set the measurement interval to 50 ms or higher.

Measurement Synchronization

Each input channel has its own A/D converter. Therefore, measurements on each
channel are synchronized.

Common Mode Voltage

The common mode voltage between channels in a single module is 250 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.

1.3 Functions of the 4-CH, High-Speed Universal Input Module