Instruction manual

SM425 INSTRUCTION MANUAL 8.0 DETAILED DATA SETTING
8.1.3 Setting Output Damping Constants
If an analog output is used as a control signal, rapidly fluctuating oxygen concentrations will cause
undesirable switching in the process or device being controlled. To avoid this, there is a damping
constant which ranges from 0 to 255 seconds. Enter the appropriate output damping constant using the
number-data entry display screen. For example, enter “030” to set the damping constant to 30 seconds.
8.1.4 Selection of Analog Output Mode
Either a linear or logarithmic output mode can be selected. The former provides a linear relationship
between the analog output signal and oxygen concentration. The latter provides a logarithmic
characteristic. Press the [Enter] key in the output mode display screen. A linear/logarithmic selection
display then appears. Select the desired mode.
• If the logarithmic mode is selected, the minimum output remains constant at 0.1% O
2
, and the minimum
oxygen concentration value remains unchanged.
8.1.5 Default Output Current Values
Default output current settings are shown in Table 8-1.
Table 8-1 Default Output Current Values
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