Master Slave Ramp Soak PID Temperature Controller – PRC-489
Product Description :
PRC-489 Single input, Single profile of 16 steps Ramp / Soak Programmable PID/On-Off Temperature Controller.
Technical Specification
| Parameters | Description |
|---|---|
| Input | Cr/Al – K type thermocouple – grounded or ungrounded |
| Range | 0 to 1200 °C. |
| Resolution | 1 °C/1 °F for thermocouple input. |
| (User selectable unit of measurement °C or °F) | |
| Indicating Accuracy | +/- 1 °C for Thermocouple throughout the range |
| Display | 4 digit 0.25” Red 7-segment display for process variable. |
| 4 digit 0.25” Green 7-segment display for set value and PID parameters | |
| Output Indication | Front Panel LED indications for SSR output. % Control Output and for Alarm status and status of heating, cooling, and soaking |
| Control Algorithm | PID or ON/OFF selectable (when specified for switching output). |
| Open sensor indication | OPEn flashes on the display and control action are turned off or control can be transferred to manual mode and power can be adjusted through keyboard from 0 to 100%. |
| Tuning | 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 10.00miutes, Cycle Time = 2 to 100 seconds. | |
| Hysterisis = 0 to 100 °C, Soft start or Ramp time (rt) = 2 to 99 seconds | |
| Power Limit (PL) = 0 to 100%. Deviation Hold (dHLd) = 0 to 50oC (0= no auto hold) For 1st preheating ramp, dHLd will not be applicable. | |
| Settings | Using the front panel feather touch (tactile) keyboard to set various parameters. |
| Control Output | DC pulse to drive external SSR b) Triac(AC switch) 2A @ 250VAC to drive an external relay or contactor coil and c) 4-20mA/0-5VDC to drive external thyristor power regulators. |
| Ramp/Soak Steps | 1 to 16 Steps |
| Ramp rate (Pr) | 1 °C/hour to 1200oC/hour (for K type t/c) |
| Soak Temperature (PL) | Programmable for each step in the full range of the specified input |
| Soaking Time (Pd) | 1 minute to 99 Hour. 59Min. |
| Program Hold Facility(dHLd) | Manual Hold or Auto Hold (Hold back feature for guaranteed Ramp/Soak facility). Deviation holds effective from 2nd ramp onwards. |
| Alarm Output | Relay Output with programmable hysteresis- can be used as High or Low Alarms or End of Profile relay. |
| Master / Slave | User programmable as Master or Slave for multi-zone control |
| Serial Communication (Optional) | Optically isolated 2 wire RS485 -Modbus RTU protocol – for both master controller and slave controller with programmable slave ID. |
| Supply | (90-250)VAC, 50/60 Hz |
| Size / Panel Cutout | 48w x 96h x 110d mm. / 45 x 92 mm. +/- 0.5 mm. |
| Enclosure | ABS plastic with polycarbonate front graphic. |
Ordering Information
| Sr. No. | Specifications | Part No. |
|---|