CARBON  / DEWPOINT CONTROLLER
FOR HEAT TREATING PROCESSES

Furnace Atmosphere Control

• Monitoring and PID control of: C content, oxygen content or dewpoint

• Input for connecting lambda-sensor

• Automatic and manual sensor purging

• Sooting alarm

• Gas-correction input CO or hydrogen (H2) compensation

• Calibrating function for the atmosphere input

MAIN FEATURES :

• Three analog inputs, two are universal

• Two freely configurable analog output, e.g. as process value output

• High-impedance mV input for O2 sensors

• Oxygen calculation (ppm /%O2, automatic adaptation)

• Carbon content calculation (%C, 2 decimals)

• Dewpoint calculation (°C, °F selectable)

• Self-Tuning to the setpoint without oscillation

• Valve controller with position feedback and DAC monitoring

• 3-point controller for water, fan and oil cooling

• Universal continuous/switching version, i.e. reduced stocks of spare parts

• 100 ms cycle time, also suitable for fast control loops

• 20 ms as shortest pulse-length

• Customer-specific Linearization for all sensors

• Settings can be blocked via password and internal switch for high security

• Extended temperature range up to 140°F (60°C) allows mounting close to the process

• Easy 2-point or offset measurement correction

• Monitoring of heating current and output circuit

• Emergency operation after sensor break by means of the “output hold” function

• Logical combination of digital outputs, e.g. for general alarm

• Manual gain scheduling

• RS 422/485 Modbus RTU interface

• PROFIBUS-DP interface

• Built-in transmitter power supply

• Splash-water proof front (IP 65)

• Front interface port

• BluePort®Front interface and BlueControl software

• Customer specific data-set

• Maintenance manager and error list

• Day & Night display shows plain text and bar graphs

• Type tested to EN 14597 (replaces DIN 3440) and cULus