YOKOGAWA OX400, Руководство пользователя

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<6. Operation and Parameters>
6-8
IM 11M10B01-01E
6.1.8 Setting Output Smoothing “SMoo”
If the oxygen concentration of sample gas rapidly changes, and the measured value is used for
control, harmful results may occur such as frequent on and off switching.
In such a case, signal changes can be smoothed by giving an appropriate time constant and
performing calculation. Smoothing factor from 0 to 60 seconds can be set. When the output
smoothing is set, the smoothed value is an instantaneous value, which is displayed and output
in analog form. The smoothed value is also used as the instantaneous value for checking the
concentration alarm and for RS232 communication. The output smoothing is “non“ 0 second by
default.
Operation: Hold down the [MODE] key for 2 seconds, select “SMoo” with the [▲], [▼]
keys, and press the [ENT] key.
Figure 6.9 shows an example of setting the smoothing factor to 30 seconds.
SMoo SMoo
[ENT]
[ENT]
SMoo
00 30
Entering 30 sec. of smoothing factor.
Enter “30” and
press the [ENT] key.
Return to “SMoo.”
MODE
Hold down
for 2 seconds.
Figure 6.9 Setting Smoothing Factor “SMoo”
6.1.9 Setting Multi-Selector “MLS”
This item is an option, so you do not need to set it unless you specified the option code “/MS.”
Operation: Hold down the [MODE] key for 2 seconds, select “MLS” with the [▲], [▼] keys,
and press the [ENT] key.
Set the relay contact to switch measurement flow for path. Up to three sampling flows can be
selected. Even though this setting is performed for an OX400 for which the option code “/MS”
was not specified, nothing will happen. Figure 6.10 shows a setting example (set measurement
flow path 1 to 3). With respect to the usage example, see Section 6.5.
MLS
▼↓↑▲
MODE
CAL
▼↓↑▲
▼↓↑▲
[ENT]
3
MLS
PPM
0
MLS
▼↓↑▲
▼↓↑▲
▼↓↑▲
[ENT]
0
MLS
PPM
[ENT]
▼↓↑▲
▼↓↑▲
%
%
To “rEV”
Hold down
for 2 seconds.
To “0”
0 is confirmed.
Return to “MLS.”
To “3”
Figure 6.10 Setting Multi-Selector “MLS”
6.1.10 Checking Calibration Coefficient “CoEF”
This item is for checking the sensor state and is not a setting.
Operation: Hold down the [MODE] key for 2 seconds, select “CoEF” with the [▲], [▼]
keys, and press the [ENT] key.
8th Edition : Jan. 10, 2019-00