Ramp/soak programmable PID temperature controller LIBRATHERM INSTRUMENTS
8 zones

DESCRIPTION:

Libratherm offers Microprocessor based Eight Zone PID Temperature indicator / Controller (Model PRC-8000)where accurate temperature control of multiple zone during Gradual Heating and Cooling is required. Each zone can be independently programmed for 16 steps of Ramp/Soak profile. Each loop parameters like PID, Hysteresis, Deviation Hold, Facility to skip unused channel etc can be programmed from the user-friendly front panel membrane keyboard.

PRC 8000 accepts 8 Thermocouples or RTD(Pt-100)3 wire inputs and can provide switching PID or ON/OFF Control output in the form of DC Pulses or SSR or relay to drive external load contactors. It can simultaneously provide 8 analog PID control outputs in the form of (4-20)mA or (0-5)volt, which can be used to control heater power through Thyristor power pack.

PRC-8000 is ideally suited for on line pre and post welding heat treatment cycle. Where the large size jobs are heated by local heating pads. Temperatures are sensed using 6 to 8 K type thermocouples fitted at different points. The common program is run for all inputs and to ensure the uniform heating cycle, the PRC-8000 offers special feature of common or individual deviation hold facility, thereby the guaranteed ramp/soak controlled is achieved. Libratherm offers ready to use panel with input/output and supply connections.

The serial interface of RS-485 in Modbus protocol is also available for operating the controller from remote computer, SCADA or DCS system.

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