Multi-loop PID temperature controller LIBRATHERM INSTRUMENTS
8 loops / output : RS485, MODBUS

Libratherm offers Microprocessor based Eight loop PID Temperature Controller (Model PID-8000) for processes requiring multiple zones heating or heating plus cooling control. It is most suitable for difficult process, which results in frequent system disturbances, and applications where accurate temperature of number of heating/cooling zone is required. It also eliminates the need for number of individual PID or ON/OFF Temperature Controllers thereby saves on panel size and cost. PID-8000 can accept 8 Thermocouples or RTD (Pt-100) inputs and can provide switching PID or ON/OFF Control output in the form of DC Pulses or SSR Drivers for heating as well as cooling. It can also simultaneously provide 8 analog PID control Outputs in the form of (4-20mA) or (0-5) volt, which can be used to drive external SCR Heater Power Controller or other actuators. Open or Faulty sensor indications for each zone is also displayed with the respective Zone No.

In short, PID-8000 is as good as 8 independent PID controllers.

Libratherm also supplies complete ready to user Temperature Control Panel using PID-8000, which finds its applications in large heating systems having number of sensors or number heaters needs to be controlled such Plastic Extruders manufacturing pipes, sheets etc…, Plastic Injection for runner less moulding, Tunnel Furnaces for annealing and large Ovens etc.

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