Fully Featured PID Controller

The Tracker 331 and 332 DIN rail mounted modules were designed to be part of a "HMI / SCADA" supervised control system but retaining single loop integrity.

Key Features include:

• 20Bit Measurement resolution
• Auto Tune of PI+D
• Heat and heat / cool control output
• Direct or reverse acting.
• Selectable Air / Water or Linear cooling.
• SSR Drive output (T331)
• Thermocouple ageing alarm
• Partial Load Failure alarm
• Communication Loss Alarm with Programmable Defence Actions
• RS485 with four protocols including MODBUS RTU & Floating Point Modbus
• Isolated Analogue output option (16Bit)

Communications Loss self defence

A number of user selectable "self defence" features ensure safe operation of the process during a loss of communication with the "Master" device, usually a PC or HMI.

Control output

Control output options include pulse width modulated (PWM) SSR drive, relay or an analogue output (0-10V or 4-20mA) can be used as a control output or for transmission of the measured value.