Ramp and Soak Temperature Controllers

Product Details:

Model Wise Descriptions:
Description:
Libratherm offers Microcontroller based multiple Ramp / Soak programmable PID temperature controller Models PRC-300, PRC-967 and PRC-309, which are designed to improve reliability, accuracy and control for all processing applications. It features Ramp and Soak functions (the capability to control the temperature and its rate of change over a predetermined time span). PRC-300 and PRC-967 offers single profile of 16 steps and PRC-309 offers one to ten different patterns each of 16 (ramp/soak) steps, which can be programmed into the memory with the user-friendly membrane keyboard. Separate displays are provided to monitor simultaneously; the Process temperature, Set temperature and the Program number. They can also be used as single set point control when the profile control is not desired. They accepts user selectable standard temperature sensors like K, R, S and B type thermocouples, or RTD(Pt-100) or 4-20mA/0-10VDC from infrared pyrometers or 0 to 1200mV from oxygen probe.

The controllers offers both switching outputs in the form of SSR driver or Triac to drive external single or three phase Solid state relays or load contactors and linear analog control outputs in the form of (4-20)mA or (0-5)volt or (0-10)VDC, which can be used to control heater power through Thyristor power regulators (for electrical heating system) or to control the position of a modulating motor valve (for oil or gas fired heating systems). The analog outputs can be directly connected to Libratherm make single phase / three phase SCR based phase angle fired power controllers, which are ideally suitable for both resistive and inductive heating load. Additional 4 relays are also provided for time or temperature dependent event outputs as per the system requirement. The programmed profile and other parameters are retained in the nonvolatile flash memory in the event of power failure.
To monitor the on line temperature profile of the heating system, serial communication port on either RS232 or RS 485 interface can also be optionally provided, the same can be connected to the computer. Libratherm provides standard window based software to view the on line behavior of the heating system in both graphical and tabular format. The controllers can also be operated and programmed through PC.

Features:

• Accepts thermocouple, RTD(Pt-100), Infrared pyrometer
• Both switching and linear PID control outputs.
• Servo start from the process temperature.
• User programmable 1-10 different patterns of ramp/soak steps.
• Retention and auto-execution of program in case of power failure.
• Facility to use as PID and ON / OFF controller.
• Interface to computer with window based software

Applications:

• Heat Treatment
• Investment casting
• Environmental Chambers
• Laboratory and Industrial Furnace / Oven control
• Laboratory and Industrial high temperature furnace control

Additional Information:

• Item Code: PRC-300
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Mumbai

Product Details:

Programmable Ramp Soak PID Temperature Controllers.

Features:

• Accepts standard type of thermocouple, RTD, Voltage or Current signal.
• Servo starts from the current process temperature.
• User programmable 10 different ramp/soak patterns in PRC-969 series.
• Retention of the program in case of power failure.
• Automatic program resumption.
• Software password security lock for unauthorised tampering of the set and tune values.

Applications:

• Heat Treatment
• Investment casting
• Environmental Chambers
• Laboratory and Industrial Furnace / Oven control
• Laboratory and Industrial high temperature furnace control

Additional Information:

• Item Code: PRC-309
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Mumbai

Product Details:

Model : PRC-300
Ramp / Soak Programmable PID Temperature Controller – Single profile of 16 steps (Basic Model)

Libratherm offers Microcontroller based multiple Ramp / Soak programmable PID temperature controller Models PRC-300, PRC-967 and PRC-309, which are designed to improve reliability, accuracy and control for all processing applications. It features Ramp and Soak functions (the capability to control the temperature and its rate of change over a predetermined time span). PRC-300 and PRC-967 offer single profile of 16 steps and PRC-309 offer one to ten different patterns each of 16 (ramp/soak) steps, which can be programmed into the memory with the user-friendly membrane keyboard. Separate displays are provided to monitor simultaneously; the Process temperature, Set temperature and the Program number. They can also be used as single set point control when the profile control is not desired. They accept users selectable standard temperatures sensors like K, R, S and B-type thermocouples, or RTD(Pt-100) or 4-20mA/0-10VDC from infrared pyrometers or 0 to 1200mV from oxygen probe.

The controllers offers both switching outputs in the form of SSR driver or Triac to drive external single or three phase Solid state relays or load contactors and linear analog control outputs in the form of (4-20)mA or (0-5)volt or (0-10)VDC, which can be used to control heater power through Thyristor power regulators (for electrical heating system) or to control the position of a modulating motor valve (for oil or gas fired heating systems). The analogue outputs can be directly connected to Libratherm make single phase / three phase SCR based phase angle fired power controllers, which are ideally suitable for both resistive and inductive heating load. Additional 4 relays are also provided for time or temperature dependent event outputs as per the system requirement. The programme profile and other parameters are retained in the nonvolatile flash memory in the event of power failure.
To monitor the online temperature profile of the heating system, serial communication port on either RS232 or RS 485 interface can also be optionally provided, the same can be connected to the computer. Libratherm provides standard window-based software to view the online behaviour of the heating system in both graphical and tabular format. The controllers can also be operated and programmed through PC.

Features:

• Accepts Thermocouple, RTD(Pt-100), Infrared pyrometer
• Both switching and linear PID control outputs.
• Servo starts from the process temperature.
• User programmable 1-10 different patterns of ramp/soak steps.
• Retention and auto-execution of the program in case of power failure.
• Facility to use as PID and ON / OFF controller.
• Interface to computer with window based software

Product Details:

Model Wise Description:
Description:

Libratherm offers Microcontroller based multiple Ramp / Soak programmable PID temperature controller Model PRC-480 which is designed to improve reliability, accuracy and control for all temperature control applications. It features Ramp and Soak functions (the capability to control the temperature and its rate of change over a predetermined time span). Single patterns of total twenty (ramp/soak) steps can be programmed into the memory using the front panel keyboard. It can also be used as single set point control when the profile control is not desired. Inputs can be Thermocouple, IR Thermocouple, RTD Temperature Sensors, Voltage, Current Signals and etc.

PRC-480 offers both switching outputs in the form of SSR driver for external SSR or external load contactor and continuous control outputs in the form of (4-20)mA or (0-5)volt control signal, which can be used to control heater power through Thyristor power pack (for electrical heating system) or to control the position of a modulating motor valve (for oil or gas fired heating systems). The analog outputs can be directly connected to Libratherm make single phase / three phase SCR phase angle fired power controller which is ideally suitable for both resistive and inductive heating load. Additional one relay is also provided for time or temperature dependent event outputs as per the system requirement. The programmed profile and other parameters are retained in the nonvolatile memory in the event of power failure.

To monitor the on line temperature profile of the heating system, serial communication port on either RS232 or RS 485 interface can be optionally provided, the same can be connected to the computer. Libratherm provides the window based software to program the controller and to view the on line behavior of the heating system in both graphical and tabular format.

Features:

• Accepts standard type of thermocouple, RTD, Voltage or Current signal.
• Control output of Relay / TRAIC / DC pulse / (4-20)mA / (0-5)Volt.
• Servo start from the current process temperature.
• 1 to 20 programmable ramp/soak steps.
• Retention of program in case of power failure.
• Automatic program resumption.
• Software password security lock for unauthorized tampering of the set and tune values.

Applications:

• Heat Treatment
• Wax Burn out furnace used in jewelry making
• Environmental Chambers
• Furnace / oven control
• PWHT and SR heat treatment cycle

Additional Information:

• Item Code: PRC-480
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Mumbai

Product Details:

Model Wise Descriptions:


Description:
Libratherm offers Microcontroller based multiple Ramp / Soak programmable PID temperature controller Model PRC-967 which are designed to improve reliability, accuracy and control for all processing applications. It features Ramp and Soak functions (the capability to control the temperature and its rate of change over a predetermined time span). PRC-300 and PRC-967 offers single profile of 16 steps and PRC-309 offers one to ten different patterns each of 16 (ramp/soak) steps, which can be programmed into the memory with the user-friendly membrane keyboard. Separate displays are provided to monitor simultaneously; the Process temperature, Set temperature and the Program number. They can also be used as single set point control when the profile control is not desired. They accepts user selectable standard temperature sensors like K, R, S and B type thermocouples, or RTD(Pt-100) or 4-20mA/0-10VDC from infrared pyrometers or 0 to 1200mV from oxygen probe.

The controllers offers both switching outputs in the form of SSR driver or Triac to drive external single or three phase Solid state relays or load contactors and linear analog control outputs in the form of (4-20)mA or (0-5)volt or (0-10)VDC, which can be used to control heater power through Thyristor power regulators (for electrical heating system) or to control the position of a modulating motor valve (for oil or gas fired heating systems). The analog outputs can be directly connected to Libratherm make single phase / three phase SCR based phase angle fired power controllers, which are ideally suitable for both resistive and inductive heating load. Additional 4 relays are also provided for time or temperature dependent event outputs as per the system requirement. The programmed profile and other parameters are retained in the nonvolatile flash memory in the event of power failure.
To monitor the on line temperature profile of the heating system, serial communication port on either RS232 or RS 485 interface can also be optionally provided, the same can be connected to the computer. Libratherm provides standard window based software to view the on line behavior of the heating system in both graphical and tabular format. The controllers can also be operated and programmed through PC.

Features:

• Accepts thermocouple, RTD(Pt-100), Infrared pyrometer
• Both switching and linear PID control outputs.
• Servo start from the process temperature.
• User programmable 1-10 different patterns of ramp/soak steps.
• Retention and auto-execution of program in case of power failure.
• Facility to use as PID and ON / OFF controller.
• Interface to computer with window based software

Applications:

• Heat Treatment
• Investment casting
• Environmental Chambers
• Laboratory and Industrial Furnace / Oven control
• Laboratory and Industrial high temperature furnace control

Additional Information:

• Item Code: PRC-967
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Mumbai

Product Details:

Ramp / Soak programmable PID temperature controller with 10 patterns and 16 steps are most commonly used for medium and high temperature control applications.

Features:

• Design: Microcontroller based 8 bit with 12 bit ADC and 12 bit DAC.
• Control Output: DC pulses to drive external SSR, Built-in Triac (5A @ 230VAC) or (4-20)mA or (0-5)VDC output with soft start and power limit.
• Alarm Output: High or Low or Event Alarm Relay (5A @ 230VAC).
• 10 indpendent profile of 16 ramp/soak steps each.

Product Details:

PRC-300 : Ramp / Soak Programmable PID Temperature Controller – Single profile of 16 steps (Basic Model).

Description:

Libratherm offers Microcontroller based multiple Ramp/Soak Programmable PID Temperature Controller Model PRC-300 which is designed to improve reliability, accuracy, and control for all processing applications. It features Ramp and Soak functions (the capability to control the temperature and its rate of change over a predetermined time span). This PID SSR Temperature Controller PRC-300 offers a single profile of 16 steps that can be programmed into the memory with the user-friendly membrane keyboard. Separate displays are provided to monitor simultaneously; the Process temperature, Set temperature, and the Program number. They can also be used as single set point control when the profile control is not desired. They accept user-selectable standard temperature sensors like K, R, S, and B type thermocouples.
The Profile Control System offers both switching outputs in the form of SSR driver or Triac to drive external single or three-phase Solid-state relays or load contactors and linear analog control outputs in the form of (4-20)mA or (0-5)volt or (0-10)VDC, which can be used to control heater power through Thyristor Power Regulators (for an electrical heating system) or to control the position of a modulating motor valve (for oil or gas-fired heating systems). The analog outputs can be directly connected to Libratherm make single/three-phase SCR based phase angle fired power controllers, which are ideally suitable for both resistive and inductive heating load. Additional 4 relays are also provided for time or temperature-dependent event outputs as per the system requirement. The programmed profile and other parameters are retained in the nonvolatile flash memory in the event of power failure.
To monitor the online temperature profile of the heating system, a serial communication port on the RS485 interface can also be optionally provided, the same can be connected to the computer. Libratherm offers Microsoft Window-based Software to view the online behavior of the heating system in both graphical and tabular format on the computer screen.
Key Features:

• Accepts thermocouple, RTD(Pt-100), Infrared pyrometer.
• Both switching and linear PID control outputs.
• Servo start from the process temperature.
• User programmable single pattern of 16 ramp/soak steps.
• Retention and auto-execution of program in case of power failure.
• Facility to use as PID and ON / OFF controller.
• Interface to computer with window based software.

Application:

• Heat Treatment Cycle (Tempering, Hardening, Annealing) control
• Investment Casting
• Laboratory High Temperature Furnace Control
• Laboratory Low Temperature Oven Control
• Industrial high temperature furnace control

Ordering Information:

Product Details:

Model Wise Descriptions:

Features:

• Designed using high speed microcontroller
• Software linearization for +/-1oC indicating accuracy
• Time delay function to automatically start the heating cycle after desired time
• Sixteen ramp/soak steps – to control burnout heating cycle
• User programmable Single or 10 different ramp/soak patterns
• Front panel LED/Display indications to monitor online behaviour of the heating cycle
• PID control action ensures +/-1oC control accuracy
• Time tested and field proven control algorithm
• Retention of program in the flash memory
• Auto restart of heating cycle on power resumption
• High or Low temperature alarm relay
• End of heating cycle relay

Description:
Libratherm offers Microcontroller based multiple Ramp / Soak programmable PID temperature controllers which are designed to improve reliability, accuracy and control for wax burnout cycles. They all features Ramp and Soak functions (the capability to control the temperature and its rate of change over a predetermined time span). One to ten different patterns each of total sixteen (ramp/soak) steps can be programmed into the memory with the user-friendly membrane keyboard. Separate displays are provided to monitor simultaneously the Process temperature, Set temperature, Program number, step number, safety temperature and remaining time. Servo start and auto tracking facilities are additional useful features available in these models. Multiple display allows user to view the program status in one glance, without having to press multiple keys. The front panel LED graph shows the status of current step in progress, whether heating ramp, cooling ramp or soaking step. Controllers can also be used as single set point control when the profile control is not desired.

Additional Information:

• Item Code: PRC-312
• Port of Dispatch: Mumbai
• Production Capacity: 100 per month
• Delivery Time: 7 days
• Packaging Details: corrugated paper box

Product Details:

PRC-967 – Ramp/Soak Programmable PID Temperature Controller (Bigger display) – Single profile of 16 steps.

Description:
Libratherm offers Microcontroller based multiple Ramp/Soak Programmable PID Temperature Controller Model PRC-967 which is designed to improve reliability, accuracy, and control for all processing applications. It features Ramp and Soak functions (the capability to control the temperature and its rate of change over a predetermined time span). This PID Programme Controller PRC-967 offers a single profile of 16 steps that can be programmed into the memory with the user-friendly membrane keyboard. Separate displays are provided to monitor simultaneously; the Process temperature, Set temperature, and the Program number. They can also be used as single set point control when the profile control is not desired. They accept user-selectable standard temperature sensors like K, R, S, and B type thermocouples.

The Profile Controller offers both switching outputs in the form of SSR driver or Triac to drive external single or three-phase Solid-state relays or load contactors and linear analog control outputs in the form of (4-20)mA or (0-5)volt or (0-10)VDC, which can be used to control heater power through Thyristor Power Regulators (for an electrical heating system) or to control the position of a modulating motor valve (for oil or gas-fired heating systems). The analog outputs can be directly connected to Libratherm make single-phase/three-phase SCR based phase angle fired power controllers, which are ideally suitable for both resistive and inductive heating load. Additional 4 relays are also provided for time or temperature-dependent event outputs as per the system requirement. The programmed profile and other parameters are retained in the nonvolatile flash memory in the event of power failure.

To monitor the online temperature profile of the heating system, a serial communication port on the RS485 interface can also be optionally provided, the same can be connected to the computer.
Libratherm offers Microsoft Window-based Software to view the online behavior of the heating system in both graphical and tabular format on the computer screen.

Key Features:

• Accepts thermocouple, RTD(Pt-100), Infrared pyrometer.
• Both switching and linear PID control outputs.
• Servo start from the process temperature.
• User programmable 1-10 different patterns of ramp/soak steps.
• Retention and auto-execution of program in case of power failure.
• Facility to use as PID and ON / OFF controller.
• Interface to computer with window based software.

Application:

• Heat Treatment Cycle (Tempering, Hardening, Annealing) control
• Investment casting
• Laboratory / Industrial High Temperature Furnace Control
• Laboratory Low Temperature Oven Control

Ordering Information:

Product Details:

PRC-489 – Single input, Single profile of 16 steps Ramp / Soak Programmable PID/On-Off Temperature Controller.
Description:Libratherm offers Microcontroller-based Ramp/Soak Programmable PID Temperature Controller Model PRC-489 which is designed to improve reliability, accuracy, and control for all temperature control applications. It features Ramp and Soak functions (the capability to control the temperature and its rate of change over a predetermined time span). The single pattern of a total of 16 (ramp/soak) steps can be programmed and stored in the memory. It can also be used as single set point control when the ramp/soak profile control is not desired. The controllers are calibrated for K type thermocouple.
Control Outputs: This PID Pressure Controller PRC-489 offers both switching outputs in the form of SSR driver/Triac (AC SSR) for external SSR or external load contactor and analog output in the form of (4-20) mA or (0-5) volt control signal, which can be used to control heater power through external Thyristor Power Regulator. The analog outputs can be directly connected to Libratherm make single-phase/three-phase SCR based phase angle or zero cross over fired power regulators. Additional one/two relays are also provided for time or temperature-dependent event outputs as per the system requirement. The programmed profile and other parameters are retained in the nonvolatile memory in the event of power failure.
Thermocouple Break Protection: In the case of a thermocouple break, the control can be transferred to manual mode to continue the heating cycle and the user can alter the % of control output. The deviation hold feature assures guaranteed ramp. For quick heating from the ambient temperature, the hold feature is disabled in the very 1st ramp. Front Panel LED indicates the start and end of the cycle, the status of heater output, the status of the heating ramp, soaking, or cooling ramp. The unit of temperature measurement can also be selected as °C or °F as desired.
Auto Tracking Feature: In case of power failure during the normal heating cycle, the temperature is likely to drop. This PID Profile Controller has a special feature to auto-track the heating rate on the resumption of power supply. This is the unique feature of the controller and normally not available in other ordinary controllers.
Master-Slave Control Feature: For larger heating systems requiring more than one controller, the master/slave feature facilitates the user to program one controller as a master and others as a slave. The slave controller will follow the program fed in the master controller. This facility allows uniform heating of the bigger jobs. The master-slave configuration is achieved using the RS485 interface. Out of many controllers, anyone controller can be configured as a master controller and others as slaves. Single Master can control a maximum of 30 slave controllers.

Key Features:

• Accepts standard type of thermocouple, RTD, Voltage or Current signal.
• Control output of Relay / TRAIC / DC pulse / (4-20)mA/ (0-5)Volt.
• Servo start from the current process temperature.
• 1 to 16 programmable ramp/soak steps with rate programming facility.

Application:

• Furnace / oven control
• PWHT and SR heat treatment cycle

Ordering Information:

Product Details:

PRC-309 – Ramp/Soak Programmable PID Temperature Controller – 1 to 10 profiles – each of 16 steps.
Description:
Libratherm offers Microcontroller based multiple Ramp/Soak Programmable PID Temperature Controller Model PRC-309 which is designed to improve reliability, accuracy, and control for all processing applications. It features Ramp and Soak functions (the capability to control the temperature and its rate of change over a predetermined time span). This PID Pressure Controller PRC-309 offers one to ten different patterns each of 16 (ramp/soak) steps, which can be programmed into the memory with the user-friendly membrane keyboard. Separate displays are provided to monitor simultaneously; the Process temperature, Set temperature, and the Program number. They can also be used as single set point control when the profile control is not desired. They accept user-selectable standard temperature sensors like K, R, S, and B type thermocouples.

Key Features:

• Accepts thermocouple, RTD(Pt-100), Infrared pyrometer.
• Both switching and linear PID control outputs.
• Servo start from the process temperature.
• User programmable 1-10 different patterns of ramp/soak steps.
• Retention and auto-execution of program in case of power failure.
• Facility to use as PID and ON / OFF controller.
• Interface to computer with window based software.

Application:

• Heat Treatment Cycle (Tempering, Hardening, Annealing) control
• Investment casting
• Laboratory High Temperature Furnace Control
• Laboratory Low Temperature Oven Control
• Industrial high temperature furnace control

Ordering Information:

Product Details:

PRC-312 – Programmable PID temperature controller with 10 profiles each of 16 ramp/soak steps.
Description:

Libratherm offers Microcontroller based multiple Ramp/Soak Programmable PID Temperature Controller Model PRC-312, which is designed to improve reliability, accuracy and control for all investment casting applications. It features Ramp and Soak functions (the capability to control the temperature and its rate of change over a predetermined time span). One to ten different patterns each of a total of 16 (ramp/soak) steps can be programmed into the memory using the user-friendly membrane keyboard. Separate displays are provided to monitor simultaneously the process temperature, set temperature, program number, step number, safety temperature, and remaining time. Servo start and auto-tracking facilities are additional useful features available in this model. Multiple displays allow users to view the program status in one glance, without having to press multiple keys. The front panel LED graph shows the status of the current step in progress, whether heating ramp, cooling ramp or soaking step. PRC-312 can also be used as single set point control when the profile control is not required.
This PID Programme Controller PRC-312 offers both switching outputs in the form of SSR or relay to drive external load contactor and also continuous control outputs in the form of (4-20)mA or (0-5)volt etc., which can be used to control heater power through Thyristor Power Regulator (for the electrical heating system). 

Key Features:

• Accepts standard K type thermocouple.
• Control output of DC pulse or (4-20)mA or (0-5)Volt or (0-10)Volt.
• Servo start from the process temperature.
• Delayed start – built in timer.
• Run the program from the desired step.
• User programmable 10 different ramp/soak patterns each of 16 steps.
• Retention of program in case of power failure.
• Automatic program resumption.
• Security-lock for unauthorized tampering of the PID and set values.

Application:

• Heat Treatment
• Investment Casting in Jewelry Industry
• Metallurgical / Ceramic research
• Furnace / Oven control

Ordering Information: