Input Ranges; Setting Minimum Oxygen Concentration (At 4 Ma) And Maximum Oxygen Concentration (At 20 Ma) - YOKOGAWA ZR402G User Manual

NOTE
When you select logarithmic mode in Section 8.1.3, "Output Mode," later in this manual, the
oxygen concentration, humidity reading, and mixing ratio remain constant at 0.1% O
and 0.01 kg/kg respectively.
8.1.3 Setting Minimum Oxygen Concentration (at 4 mA) and
Maximum Oxygen Concentration (at 20 mA)
Set the oxygen concentration values at 4 mA and 20 mA.
The minimum concentration of oxygen for the minimum current (4 mA) is 0% O
O .
2
The maximum concentration of oxygen for the maximum current (20 mA) ranges from 5% to
100% O , and must be greater than 1.3 times the concentration of oxygen set for the minimum.
2
If it does not fall within this input range setting, the setting will be invalid, and the previous set
values will remain.
Setting example 1
If the setting (for a 4 mA current) is 10% O
maximum (20 mA) point at 13% O
Setting example 2
If the setting (for a 4 mA current) is 75% O
maximum (20 mA) point at 98% O
(Numbers after the decimal point are rounded up.)
CAUTION
When you select logarithmic mode, the minimum output remains constant at 0.1% O
parameter "C11" display remains unchanged.
8.1.4 Minimum and Maximum Settings Corresponding to 4
mA and 20 mA
Set the output items for oxygen concentration reading, humidity reading and mixing ratio
corresponding to 4 mA and 20 mA. When the oxygen concentration was selected with parameter
code C01, use parameter codes C11 and C12 for the minimum and maximum settings; when
the humidity setting was selected with parameter code C01, use parameter codes C13 and C14
for those settings; and when the mix ratio setting was selected with parameter code C01, use
parameter codes C15 and C16 for those settings.
8.1.5

Input Ranges

The range low and high values are restricted as follows:
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.
.
2
(75 × 1.3).
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>
, you must set the oxygen concentration for the
2
, you must set the oxygen concentration for the
2
, 0.1% H
2
or 6% to 76%
2
, and the
2
IM 11M12A01-04E 11th Edition : Jul. 19, 2017-00
8-2
O
2