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Special features:
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Calculates C-level from the residual oxygen content of a gas or CO2
-content from the furnace atmosphere
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Converts the L-probe voltage to the voltage curve of a zirkonium oxide
probe
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Parameter input via plug-in terminal
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Menu - guided operation
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High operation per galvanic separation of all inputs
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Optional connection of two thermocouples Type "K" and "S"
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Additional input for CO - analyzer
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Function:
The CARBO 47 is an intelligent transmitter designed for connecting
different types of sensors. The unit processes the input signals and outputs
the desired output variable as a voltage or current unit signal. The versions
described here convert the residual oxygen content of a gas to other components
such as C-level based on the assumed gas equilibrium.
determination of the C-level in conjuction with a conventional controller
enables a favourably priced system for controlling carbon atmospheres in
heat treatment plants.
The system stiil contains thefacilities offered by more expensive systems,
such as actual value correction (see below). The investment is soon amortized
even on smaller furnace systems.
Another practical funtion of the unit conversion of the L-probe voltage
into the probe voltage of a conventional zirconium oxide probe (see the
appropriate data sheet for the L-probe). This allows the cheaper,
more robust L-probe to be adapted to existing control systems.
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