YOKOGAWA EXAxt ZR22G, User Manual, Page: 116 / 211

<8. Detailed Data Setting>
8-3
IM 11M12A01-02E 16th Edition : Mar. 19, 2020-00
40
50
60
70
80
90
100
25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
F8-2E.ai
Minimum humidity (for a 4-mA current), % H
2
O
Maximum humidity (for a 20-mA
current), % H
2
O
Ranges over which oxygen
concentrations can be set
Outside ranges
Figure B Max. and Min. Humidity Set Ranges
l
“Mixing ratio” setting range
The minimum mixing ratio is set to 0 kg/kg or ranges from 0.201 to 0.625 kg/kg. The maximum
“mixing ratio” setting ranges from 0.2 to 1.0 kg/kg, and must be greater than 1.3 times plus 0.187
the mixing ratio set for the minimum.
Setting example 1
If the setting (for a 4 mA current) is 0 kg/kg, you must set the maximum (20 mA) point at more
than 0.2 kg/kg.
Setting example 2
If the setting (for a 4 mA current) is 0.201 kg/kg, you must set the maximum (20 mA) point at more
than 0.449 kg/kg, (0.201 3 1.3 + 0.187 kg/kg). (Numbers after the decimal point are rounded up.)
0.9
0.85
0.8
0.75
0.7
0.65
0.6
0.55
0.5
0.45
0.4
0.201 0.25
0.3
0.35
0.4 0.45 0.5
0.55
0.6 0.65
Maximum mixing ratio, kg/kg at 20 mA
Minimum mixing ratio, kg/kg at 4 mA
Ranges over which oxygen
concentrations can be set
Outside ranges
1
0.95
F8-3E.ai
Figure C Max. and Min. Mixing Ratio Set Ranges