• Libratherm Instruments Private Limited

Programmable Ramp/Soak PID Temperature Controller

Libratherm offers microcontroller based multiple Ramp/Soak programmable PID temperature controller, Model PRC-310. This model has been 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). 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. 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 it is the heating ramp, cooling ramp, or the soaking step. 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 more. PRC-310 offers both switching outputs in the form of SSR or relay to drive external load contactor and continuous control outputs in the form of (4-20) mA or (0-5) V, etc., 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 analogue 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. The company also offers SCR Triggering Cards for Phase Angle Control, Microprocessor Based Sixteen Channel Data Logger, Microcontroller Based Temperature/Process Scanner, Data Acquisition Software, Multi Loop PID Controller, etc.