Detailed Data Setting; Current Output Setting; Setting Minimum Current (4 Ma) And Maximum Current (20 Ma); Input Ranges - YOKOGAWA ZR22G User Manual

8.

Detailed Data Setting

8.1

Current Output Setting

This section describes setting of the analog output range.
8.1.1 Setting Minimum Current (4 mA) and Maximum
Current (20 mA)
(1) "Converter menu" > "Setting"
(2) Select the "mA output settings".
(3) Select "mA output1".
(4) Select "Selection of AO1" . Enter the value of "4mA point" and "20 mA point" for each.
(5) Set "mA output2" in the same way as the setting procedure for mA-output1 given above.
See "7.8 Output Range Setting" for details.
NOTE
For the humidity measurement, 0% H
H O is the default for the maximum humidity. If you first attempt to set 50% H
2
humidity, you cannot set it because that value is outside the set range. In such a case, set the
maximum humidity first.
8.1.2

Input Ranges

Oxygen Concentration setting range
l
The range min. O
vol%O or in the range of 6 to 76 vol%O
2
The range max. O
in the range of 5 to 100 vol%O
range min. setting.
If you do not observe this restriction, the measurement will be invalid, and any previous valid
value will be used. The gray area in Figure 8.1 represents the valid setting range.
Setting example 1
If the range minimum (corresponding to 4 mA output) is set to 10 vol%O
(corresponding to 20 mA output) must be at least 13 vol%O
Setting example 2
If the range minimum (corresponding to 4 mA output) is set to 75 vol%O
(corresponding to 20 mA output) must be at least 75x1.3=98 vol%O
O is a default setting for the minimum humidity and 25%
2
concentration value (corresponding to 4 mA output) can be set to either 0
2
.
2
concentration value (corresponding to 20 mA output) can be set to any value
2
, however the range max. setting must be at least 1.3 times the
2
<8. Detailed Data Setting>
O for the minimum
2
then range maximum
2
.
2
then range maximum
2
(rounding decimal part up).
2
IM 11M12G01-02EN
8-1
1sh Edition : Mar. 25, 2021-00