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PRC-312 – Programmable PID temperature controller with 10 profiles each of 16 ramp/soak steps.
Part No: 1701
|Design||Microcontroller based with 12 bit ADC and 12 bit DAC|
|Input||Thermocouple type K (other types can also be offered).|
|Range||0 to 1200 °C.|
|Resolution||1 °C Subject to the specified input and range.|
|Indicating Accuracy||Better than ± 0.1% of the range ( by software linearization of curves).|
|Display||4 digit 0.5" for Process value, 4 digit 0.5" for set value.|
|2 digit 0.3" for the current Program number, 2 digits 0.3" for step number.|
|4 digit 0.3" for safety temperature and 4 digits 0.3" for the remaining time of the current step.|
|Tuning||Manual tuning of PID and Hysterisis values.|
|Control Algorithm||Time and linear proportional PID mode for heating control On/Off mode with programmable hysteresis. (OUT1).|
|PID values||Proportional Band (P) = 0.0 to 100.0% of Span,
Integral value (I) = 0.00 to 5.00 resets/minute,
Derivative value (D) = 0.00 to 5.00 minutes,
Cycle Time (CYC) = 2 to 100 seconds,
On/Off Hysterisis (HYSt)= 0 to 10 o C (When Prb = 0),
|Control mode||Single setpoint or Ramp/Soak profile mode – user selectable|
|Delayed Start||Internal timer to autostart the heating cycle after the time delay elapses. 0.0 to 99.0 Hour (increment @ 0.5 Hr or 30 mins).|
|Set Point||Programmable throughout the range. In single set point control mode, the setpoint can be changed.|
|Control Outputs||10V DC pulses to drive external SSR and built-in Triac (5A @ 230VAC) Or 4-20mA/0-5V/0-10V – to control the thyristor-based system.|
|Ramp/Soak Steps||1 to 16 Steps. (No restrictions in programming – a ramp can be followed by a ramp and a soak can be followed by a soak).|
|Set Temperature||Programmable for each step in the full range of the specified input.|
|Time per Step||1 to 540 minutes per step (max. 9 hours per step).|
|Run from desired step facility (rFSn)||This rFSn facility allows the user to skip the ramp/soak steps and run the profile from the desired step number.
With servo start facility (to start the step from the current furnace temperature) the rate of heating/cooling can be kept the same.
|Memory Backup||Retention of PID and set values in the non-volatile memory in the event of power failure.
Auto resumption from the last point on the resumption of power.
No need to restart the program.
|Alarm Outputs||Configurable Alarms for High or Low or Deviation.
End of Profile Alarm Relay (contacts rated for 5A @ 230VAC).
|Serial Communication (Optional)||RS485 on Modbus RTU protocol (in Slave mode). Standard Windows-based PC software is available at extra cost.|
|Supply||115VAC or 230 VAC ± 10% ( approx. 5VA), 50/60Hz.|
|Size||192 w x 96 h x 160 d mm, Panel cutout : 186 x 92 + 0.5 mm.|
|Enclosure||Metal Powder coated with ABS bazel and polycarbonate front graphic.|
|Sr. No.||Specifications||Part No.|
|1||Ramp/Soak controller with input from K type thermocouple and with SSR + 4-20mA control output and High/Low/End of Profile Relay outputs operating on the 230VAC power supply.||1701-1|
|2||Ramp/Soak controller with input from K type thermocouple and with SSR + 4-20mA control output and High/Low/End of Profile Relay outputs operating on the 115VAC power supply.||1701-2|
|3||Ramp/Soak controller with input from K type thermocouple and with both SSR + 4-20mA control output and High/Low/End of Profile Relay outputs operating on the 230VAC power supply with RS485 interface and compatible computer software.||1701-3|
|4||Ramp/Soak controller with input from K type thermocouple and with both SSR + 4-20mA control output and High/Low/End of Profile Relay outputs operating on the 115VAC power supply with RS485 interface and compatible computer software.||1701-4|