<8. Detailed Data Setting>
8-1
IM 11M12G01-02EN 1sh Edition : Mar. 25, 2021-00
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
2
O is a default setting for the minimum humidity and 25%
H
2
2
O for the minimum
humidity, you cannot set it because that value is outside the set range. In such a case, set the
8.1.2 Input Ranges
l Oxygen Concentration setting range
The range min. O
2
concentration value (corresponding to 4 mA output) can be set to either 0
vol%O
2
or in the range of 6 to 76 vol%O
2
.
The range max. O
2
concentration value (corresponding to 20 mA output) can be set to any value
in the range of 5 to 100 vol%O
2
, however the range max. setting must be at least 1.3 times the
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
2
then range maximum
(corresponding to 20 mA output) must be at least 13 vol%O
2
.
Setting example 2
If the range minimum (corresponding to 4 mA output) is set to 75 vol%O
2
then range maximum
(corresponding to 20 mA output) must be at least 75x1.3=98 vol%O
2
(rounding decimal part up).
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