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Choose from a range of control solutions designed to help you achieve:
Optimize cycle times, and record the process to meet heat treatment data regulations.
Associated products:
• Carbon probe with internal temperature sensor
• 6100/6180 data recorder
Carbon control
Provides single-setpoint carbon probe control by translating mV input into carbon % value. Supports probes from several common vendors. Serial and Ethernet-based communications allow remote setpoint to be sent to the controller.
Features:
• Setpoint programming
• Inbuilt trend and tamper resistant data recording
Associated products:
Carburizing control
Provides multi-setpoint control via a setpoint program for temperature and carbon control loops. Higher carbon % values can be set for the boost segment, typically 1.0-1.2%, and lower carbon for the diffuse segment, typically 0.7- 0.9%
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Features:
• Setpoint programmer
• Inbuilt trend and tamper resistant data recording
• Optional 3gasIR atmosphere control
• Optional model-based control (online diffusion)
• IIoT (Industrial Internet of Things) ready
• Easily integrated with 3rd party PLCs (hybrid system)
Associated products:
Advanced carburizing system
*Typical cycle time reduction of 9% * based on typical savings seen in retrofit applications where standard carburizing control (not real-time) was previously used.
Setpoint control as above, enhanced with 3gasIR control to optimize probe readings, and modelbased online diffusion control to reduce casedepth variability. Boost and diffuse segment times are optimized based on the model.
Please refer to the back page for a control solutions summary and an overview of our integrated systems and engineering services capability.
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The thermocouple linearization function block converts the mV input reading and cold junction temperature into a temperature output. It also provides scaling, low pass filtering, offset and manual-override capabilities.
Provides a channel output to control a process variable (PV), using a precision PID control algorithm designed by Eurotherm. Autotune is included, as well as a ‘cutback’ feature
to control overshoot behavior. A gain scheduling feature is available for adding extra PID tuning sets, to help maintain tight control at different setpoints.
Derives the working lifespan of thermocouples in days or number or times used, under different ranges of operating temperature. The block monitors usage times and temperatures, and indicates whether the thermocouple is still valid for use according to the AMS2750E standard.
* Available in E+PLC only
Each part of the process is divided into an appropriate
segment (for example, ramp, soak, cool etc.) Within each
segment, appropriate variables can be set (carbon%, time,
ramp rate etc.)
Provides calculation of the furnace atmosphere’s carbon potential, probe cleaning algorithm and soot notification. Includes probe linearization for several common vendors.
Utilizes CO, CO2 and CH4 readings from an infrared gas analyzer, in combination with furnace temperature readings. Calculates appropriate probe adjustment/compensation factors to provide accurate carbon potential value.
Mathematically models the diffusion of carbon from a carbon enriched atmosphere into steel within a furnace. Case depth targets are set and the model calculates the carbon profile of the steel (percentage of carbon against depth) in real time. Allows optimization of the heat treat cycle by stopping as soon as complete.
1.E+PLC400 with any number of modules from zero upward can be used to create a hybrid advanced carburizing control system, in combination with Schneider Electric, Eurotherm and 3rd party PLCs.
2.Heater output only available if carbon control (gas enrichment/air dilution) is not used.
Product I/O options shown are for example only. Contact your local Eurotherm sales representative to discover the most suitable solution for your process.
Contact Us >Scalable integrated systems and services, from single machine to enterprise solutions, including:
• Power control (SSR/SCR) and process control
• Data management, alarm management and supervisory systems
• System design, engineering and installation
• Calibration and maintenance services
