High Accuracy PID Temperature Controller – PID-967
Product Description :
PID-967 5 digit Temperature and Process PID Controller with single Ramp/Soak feature.
Configuration : ( (1AI + 2AO + 4DO + 1SO)
Size (mm) : 96 x 96 x 120
Technical Specification
| Item | Microcontroller based 5 digit PID Temperature / Process controller |
|---|---|
| Input -U (Universal) | Single Analog Input - RTD(Pt-100)/ 2 or 3 wire and Thermocouple (type J,K,R,S,B,T), 0-10V and 4-20 mA (i.e. Maximum 8 user selectable inputs using keyboard and DIP switch on the back panel) |
| Range | Full +ve range of the selected input (please refer to the input and range selection table) |
| Decimal Point | Programmable for voltage and current inputs.(1.0 0.1,0.01) |
| Resolution | 1 °C /0.1 °C for thermocouples and 0.1oC for Pt-100. For V and mA inputs the display resolution is subject to the required range. For V and mA input the position of the decimal point can be selected. |
| Sampling rate / Display rate | The input is read @40mS / the display is updated @1 second. The control loop is also executed @ 40 mS. |
| Indicating Accuracy | +/- 1 °C or +/-0.1 °C for Thermocouple throughout the range and +/- 0.1 °C for Pt-100 for (4-20)mA or (0-10)V - absolute to the linear input signal |
| Burn Out Detection | In the event of Input being open or short - the analog output can be programmed to go up scale or down scale and Digital Output like relay can be programmed to remain ON or OFF. |
| One Ramp / Soak | To Gradually increase the process value - Ramp rate : rAmp = 0.0 to 100.0 °C/min or 0 to 100 °C/min To Hold the controlled process value for required time, Soak time: St = 0 to 999 minutes. |
| Display | 5 digit 0.5" Red 7-segment display for process variable. 5 digit 0.5" Green 7-segment display for set value and PID parameters |
| Output Indications | Front Panel LED indications for Control Output, Alarms, Control and A/M status and serial interface etc. |
| Control Algorithm | PID or ON/OFF selectable (when specified for switching output). Direct action (cool) or Reverse action (heat) - User programmable. Reverse Action is considered as Heat output - where control output decreases as the error (SV-PV) is less positive and vice versa. Direct Action is considered as Cool output - where control output increases as the error (PV-SV) is more positive and vice versa. |
| Tuning | Auto/Manual tuning of PID values. |
| PID Values | Proportional Band (P) = 0.0 to 100.0% of Span, Integral (I)= 0.00 to 5.00 resets/minute, Derivative (D) = 0.00 to 5.00miutes, Hysterisis = 0 to 50 counts, Cycle Time = 2 to 100 seconds. |
| Settings | Using front panel feather touch (metal dome) key board to set various parameters. |
| Memory Backup | Retention of PID and Set values in the built in non-volatile memory - in case of power failure and automatic re-execution of control on power resumption. |
| Control Outputs (Switching) | Switching Outputs - DC pulse (0 to 10VDC@25mA) for external SSRs and Relay or Triac (AC SSR) (rated for 5A @230VAC) for external contactor. (PID or ON/OFF action - user selectable) or |
| Control Outputs (Analog) | Analog Outputs (4-20)mA (RL max = 300 Ohms) or 0-5VDC (RL min = 10KOhms) |
| Alarm Outputs | 2 to 4 extra Relay Outputs with programmable hysteresis for High or Low Alarms. (relay contacts rated for 5A @230VAC) - Configurable for High, Low, Deviation and OFF state or as per desired event. (C and NO contacts are available to the user for each relay) |
| Serial Communication | Optically isolated 2 wire RS485 on Modbus RTU protocol. (in Slave mode with programmable modbus address). |
| Supply | 230VAC +/- 20%, 50/60 Hz. |
| Size | 96 x 96 x 120 mm. |
| Panel Cutout | 92 x 92 mm +/- 0.5 mm. |
| Enclosure | ABS plastic with polycarbonate front graphic. |