YOKOGAWA MuR10000 - Page 23

1-5
IM 04P01B01-01E
Functional Explanation and Setup Guide
For the procedure to set the functions, see section 1.10, “Function Setup Guide.”
1
2
3
4
5
6
7
8
9
10
11
12
App
Index
Note
When using external reference junction compensation, set an appropriate reference junction
compensation voltage. For example, if the reference junction temperature of the external
reference compensation is T
0
°C, set the reference compensation junction voltage to the
thermoelectromotive force of the 0°C reference of T
0
°C.
Recorder
Example when using external reference junction compensation
External reference junction compensation
(Hold the contact point of the thermocouple
and copper wire at T0°C)
Thermocouple
Copper wire
<Related Topics> Setting the reference junction compensation function: Section 7.4
Noise Elimination from Input Signals
Filter and Moving Average
This function used to suppress the effects of noise that is riding on the signal. The pen
model and dot model are equipped with a filter function and a moving average function,
respectively. The function can be set for each measurement channel. However, it does
not operate on channels set to ON/OFF input.
• Filter (Pen Model)
The lterisalow-passlter.Thetimeconstantcanbesetto2s,5s,or10s.
63.2% of the output value
2, 5, 10 s (time constant, the time it takes
to reach 63.2% of the output value)
Output response curve
(when using the filter)
Input
Filter result (output for a step input)
• Moving Average (Dot Model)
The average value of the m most recent values acquired at the scan interval is used
as the measured value of the channel. The number of moving-averaged data points
(m)canbesetintherange2to16.Thegurebelowshowsanexampleindicating
theoperationofthebu󰀨erforthemoving average computation when the number of
moving averaged data points is set to 5.
1
2
3
4
5
10.0 mV
5.0 mV
0.0 mV
–5.0 mV
–10.0 mV
0.0 mV
15.0 mV
10.0 mV
5.0 mV
0.0 mV
–5.0 mV
5.0 mV
10.0 mV
15.0 mV
10.0 mV
5.0 mV
0.0 mV
8.0 mV
Deleted
Deleted
Moving
average
Most recent data Most recent data
Buffer data for the
nth sampling time
Buffer data for the
n+1th sampling time
Buffer data for the
n+2th sampling time
<Related Topics> Setting the filter: Sections 7.12 and 6.2
Setting the moving average: Sections 7.11 and 6.3
1.2 Measuring Input Section