Setting Output Smoothing Factor; Selection Of Output Mode; Default Values - YOKOGAWA ZR22G User Manual

8.1.3

Setting Output Smoothing Factor

If the measured value changes suddenly, using this measured value as a control may cause
harm such as frequent on-off operation.
In such a case, you can set a smoothing time constant of between 0 and 255 seconds to reduce
the effect. Select "AO1 time constant", "AO2 time constant" to enter an appropriate value.
Figure 8.4
8.1.4

Selection of Output Mode

You can select whether the relationship between the sample oxygen concentration and the
analog output signal be linear or logarithmic. Press the [Output characteristic selections] in the
output mode display. A linear/ logarithmic selection display then appears. Select the desired
mode.
NOTE
If you select an output mode of "logarithmic" , regardless of range setting the minimum output
value becomes fixed to 0.1 vol%O
humidity; 0.1%RH,regardless of setup value.
Display of the minimum oxygen concentration value, the minimum humidity, the minimum mixing
ratio, and the minimum relative humidity remain unchanged.
8.1.5

Default Values

When the analyzer is delivered or reset to defaults, the output current default settings by as
shown in Table 8.4.
Table 8.4
4mA point oxygen concentration
20mA point oxygen concentration
4mA point humidity
20mA point humidity
4mA mixing ratio
20mA mixing ratio
4mA relative humidity
20mA relative humidity
Output smoothing factor
Output mode
Upper limit value (AO range switching)
Output smoothing factor
, humidity; 0.1% H
2
Output Current Default Values
Item Default setting
0%O
25%O
0%H
25%H
-
-
-
-
0 (seconds)
Linear
25%O
<8. Detailed Data Setting>
O, mixing ratio; 0.01 kg/kg, the relative
2
2
2
O
2
O
2
2
IM 11M12G01-02EN 1sh Edition : Mar. 25, 2021-00
8-4