6 Zone Ramp/Soak PWHT Temperature Controller – PRC-6000
₹57,750 – ₹73,500
Prices are inclusive of Delivery Charges.
PRC-6000 – Six input/output and six independent 4 steps profile programmer cum temperature controller for SR/PWHT Cycle.
Size : 96 x 96 x 160
PRC-6000-PNL – Ready to use panel with input/output connections for SR/PWHT Cycle.
Size : 350 x 250 x 325
Libratherm manufactures Six Zone Microcontroller based Multiple Ramp/Soak programmable PID/On-Off Temperature Controller cum Profile Programmer Model PRC-6000 which is designed to improve reliability, accuracy, and control of six independent heating zones. It features Ramp and Soak functions (the capability to control the temperature and its rate of change over a predetermined time span). A single and common pattern of 4 ramp/soak steps – (Fixed pattern of 1st pre-heating ramp, 2nd heating ramp, 3rd soaking, and 4th cooling ramp) for all six zones or each of the six-zone can be independently programmed and stored in the memory. This Multi-Channel PID Profile Controller PRC-6000 can also be used as single set point control when the ramp/soak profile control is not desired. PID SSR Programmer PRC-6000 accepts six K type thermocouples and provides outputs in the form of 6 relay contacts in PID or ON/OFF control mode. An extra relay contact is provided to indicate the thermocouple fault condition.
This PWHT Stress Relieving Controller PRC-6000 offers blue color graphical LCD screen to display the temperature of all six zones simultaneously on a single screen. The programmed and running ramp/soak profile can be easily monitored. The front panel keyboard allows programing of ramp/soak profile, PID values, deviation hold values, and viewing of various status parameters for all six zones under control. Through the keyboard, the user can operate each heating zone either in Auto mode or Manual mode in profile mode or in single set point control mode.
To monitor the online temperature profile of the heating system, RS 485 serial communication interface can be optionally provided, the same can be connected to the computer. Libratherm provides the window based software to program the controller and to view the online behavior of the heating cycle in both graphical and tabular format. Optionally, an extra RS485 port can be provided for Master/Slave programming with a single master and a maximum of 10 slaves.
key Features:
- Accepts 6 K type (Cr/Al) thermocouple
- Blue colour graphical LCD screen for clear visibility
- Six independent control Relay and 1 fault Relay
- On line facility to change the Ramp rate and Soak temperature
- Servo start from the current process temperature
- 1 to 4 programmable ramp/soak steps
- Cascading of Controllers using Master/Slave facility
- °C/°F unit of measurement selectable through keyboard
- Programmable delayed start timer – 0.0 to 99.9 hours
- All six zones can be independently programmed for different ramp/soak patterns
- All six zones can be run independently at different times.
- All six zones can be run with a common ramp/soak profile with a built-in hold facility to control all the zones in synchronization.
- Deviation hold value can be programmed for each zone.
- PRC-6000 can be used as six independent controllers or a single six-channel controller.
Key Features
- Accepts 6 K type (Cr/Al) of thermocouple.
- Blue colour graphical LCD screen for clear visibility.
- Six independent control Relay.
- Servo start from the current process temperature.
- 1 to 4 programmable ramp/soak steps with rate programming facility.
- Either common profile for all 6 zones or independent profiles per zone.
Application:
- Furnace / Oven control
- PWHT and SR heat treatment cycle
Technical Specification
Parameters | Description |
---|---|
Input Sensor | K type thermocouple |
No. of Sensor Input | Six |
Range | 1 to 1200°C / 32 to 2192°F (°C or °F unit is user selectable) |
Resolution | 1°C for thermocouples |
Indicating Accuracy | +/- 1 °C for Thermocouple throughout the range (Software linearized) |
Display Screen | Graphical LCD (Blue colour) with 6 windows for 6 zones |
Output Indication | Available on the display screen |
Control Algorithm | PID or ON/OFF (user selectable). |
Open sensor indication | OPEn flashes on the display and control action is turned off for that zone. |
Tuning | Manual tuning of PID values. |
PID Values per zone | Proportional Band (P)= 0.0 to 100.0% of Span, |
Integral (I)= 0.00 to 5.00 resets/minute, | |
Derivative (D) = 0.00 to 10.00 minutes, | |
Cycle Time = 10 to 100 seconds. | |
Hysterisis = 1 to 10oC, | |
Deviation Hold (dHLd) = 0 to 50oC (0 = no auto hold) | |
Settings | Using front panel feather touch key board to set various parameters. |
Control Output | 6 relay (C+NO1 to NO6) Contacts are rated for 5A @ 230VAC |
Ramp/Soak Profile | 4 Steps (1st step - Pre heating step oC/Hr (1a) + 2nd step - Ramp heating step °C/Hr (1b) + 3rd step - soaking temp in °C(2)+ soaking time Hr (3) + 4th step - cooling step °C/Hr (4) + End temp °C (5) |
Ramp rate (Pr) | 1°C/hour to 1200°C/hour or 1°F/hour to 2192°F/hour |
Soak Temperature (PL) | Programmable for each steps in the full range of the specified input |
Soaking Time (Pd) | 0.1hour to 100Hour. (Resolution of 0.1 hour or 6 minutes) |
Program Hold Facility(dHLd) | Manual Hold or Auto Hold |
(Hold back feature for guaranteed Ramp/Soak facility). | |
Master / Slave (optional) | User programmable as Master or Slave for multi-zone control |
Serial Communication Port1 (Optional) | Galvanic isolated 2 wire RS485 -Modbus RTU protocol for both master and slave (in Slave mode with programmable slave ID) |
Serial Communication Port2 (Optional) | Galvanic isolated 2 wire RS485 -Modbus RTU protocol for interface to computer |
Supply | 230VAC /115VAC +/-10% (Any one to be specified), 50/60 Hz. @ 15VA |
Size (PRC-600) / PANEL | 96w x 96h x 170d mm. / 350 x 250 x 325 mm (WHD) |
Panel Cutout | 92 x 92 mm. +/- 0.5 mm. |
Enclosure | MS Powder coated with polycarbonate front graphic |
Ordering Information
Model | Description | Part No. |
---|---|---|
PRC-6000 | Six zone profile programmer cum temperature controller | 1707 |
PRC-6000-PNL | Six zone profile programmer + Duly fitted in Ready to use control panel comprising input/output connections, lamp indications and other accessories. | 1708 |
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