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The 2404 Atmosphere Controllers provide accurate
display and control of carbon level in carburizing furnaces and
ceramic glazing kilns. There are three different controllers that
connect to a variety of common zirconia probes, including the Series
AP from Eurotherm, which measure the % oxygen in a furnace. The
carbon level is calculated from two inputs, the % O2 and temperature
measured by the probe. An optional third input can accept a signal
from a CO or H2 analyzer, thus providing a more precise carbon or
dewpoint measurement.
In addition to carbon levels, the controller can
be configured to measure % O2, log O2, dewpoint (°C or °F)
and probe millivolts. A probe clean output forces compressed air
through the probe at regular intervals to burn off soot. A sooting
alarm will warn if carbon deposits
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build up to give false readings. Health of the probe
is measured by monitoring the time it takes the probe mV reading
to recover from self-clean. Probe clean and CO/H2 compensation are
enabled by digital inputs.
A range of plug-in modules provide control, alarm and retransmission
options. Optional Modbus®, ASCII, or Profibus® communications
are available.
ESO209 - This low cost version offers PID and two
module slots plus Modbus® or ASCII communications.
ES0288 - This version is identical to ES0209, but with Profibus®-DPcommunications.
ES0278 - This version offers PID or valve control, two module slots,
five relay outputs, Modbus® or Profibus® communications
and an optional third slot for retransmission or CO compensation
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渗碳炉, 陶瓷窑