ENERGY SUPPORT CORPORATION DTF-201, Operation Manual, Page: 24 / 34

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4-6 Applied operations
(1) Primary delay time setting
With the data value input to CH016 (unit: seconds), primary delay can be applied to the
concentration output signal. The setting range is 0 - 99 seconds.
(2) WET/DRY
The output of oxygen concentration when 0 is inputted to CH18 is WET output.
When fuel to use is gas fuel, each element concentration (vol %) in the fuel is inputted
to CH230 - 239, and 1 is inputted to CH018. Oxygen concentration output becomes
DRY output by the above.
When fuel to use is solid fuel or liquid fuel, each element concentration (vol %) in the fuel
is inputted to CH241 - 246, and 2 is inputted to CH018. Oxygen concentration output
becomes DRY output by the above.
(3) Output hold setting
If an error occurs for the sensor or receiver while CH023 is selected, this sets how the
concentration output signal is to be held. The relationship between the input data and
hold contents is shown in the table below.
Input Data Hold Function
0 Hold not applied when error occurs in sensor or receiver.
1
Hold applied using the value set for CH024 when sensor
or receiver error occurs.
2
Hold applied using the value 5 seconds before the error
occurred in the sensor or receiver.
(4) Output hold value setting
If a sensor or receiver error occurs during warming up (receiver countdown display) or
when 1 is input to CH023, hold is applied to the concentration output signal using the
data set for CH024 (unit:% FS). For example, to hold current output of 4 - 20 mA at
12mA, the setting is 50% FS.