Libratherm Instruments Private Limited
Dahisar East, Mumbai, Maharashtra
GST No. 27AABCL1732A1Z5
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Product Details:
| Minimum Order Quantity | 1 Piece |
| Model No. | PRC-480 |
| Size | 48 x 48 mm |
| Control Type | PID/On-Off |
| Input Type | RTD, Current (mA), Thermocouple, Voltage (mV) |
| Control output Type | Analog (mA/mV), SSR |
| Brand | Libratherm |
| Power | 240 V AC, 24 V DC |
| Voltage | 110-230 VAC |
| Frequency | 50/60 Hz |
| Country of Origin | Made in India |
| Panel Cutout or Terminals | 45 x 45 mm. +/- 0.5 mm. - 16 back panel terminals |
| Input Fixed | Any one factory set input as per users requirement as per the input selection table given below. |
| Enclosure | ABS plastic with polycarbonate front graphic. |
| Note | Due to continuous improvement - the specifications are subject to change without notice. |
| Range | Full +ve range of the selected input (please refer to the range selection table) |
| Resolution | 1 oC for thermocouples and 0.1oC for Pt-100 For mA input |
| Indicating Accuracy | +/- 1 oC for Thermocouple throughout the range and +/- 0.1oC for Pt-100 for (4-20)mA |
| Display | 4 digit 0.25Inch Red 7-segment display for PV. 4 digit 0.25Inch Green 7-segment display for SV |
| Output Indication | Front Panel LED indications for SSR output. % Control Output and for Alarm status. |
| Input Universal | J,K, R,S,B type thermocouple, RTD(Pt-100)/3 wire, 4-20mA |
| Settings | Using front panel feather touch (tactile) key board to set various parameters. |
| Ramp or Soak Steps | 1 to 20 Steps. (no restrictions in programming - a ramp can be followed by a ramp and a soak |
| Set Temperature | Programmable for each steps in the full range of the specified input |
| Time per Step | 1 to 540 mins. (9 Hr. per step) or 1 to 99:59 hour min. (To be specified in ordering info.) |
| Program Hold Facility | Manual Hold or Auto Hold (Hold back feature for guaranteed Ramp/Soak facility) |
| Alarm Output | Relay Output with programmable hysteresis- can be used as High or Low Alarms. |
| Serial Communication Optional | Optically isolated 2 wire RS485 on Modbus RTU protocol. (in Slave mode with programmable slave ID) |
| Model | Description | Size (mm.) |
| PRC-480 | Single input, Single profile of 20 steps Ramp / Soak Programmable PID Temperature Controller | 48 x 48 x 110 |
Additional Information:
Product Details:
| Minimum Order Quantity | 1 Piece |
| Model No. | PRC-300 |
| Size | 96 x 96 mm |
| Control Type | PID/On-Off |
| Input Type | RTD, Current (mA), Voltage (mV), Thermocouple |
| Control output Type | SSR, Analog (mA/mV) |
| Brand | Libratherm |
| Type | Digital |
| Display Type | 4 Digit/7 Segment |
| Voltage | 110-230 VAC |
| Frequency | 50/60 Hz |
| Country of Origin | Made in India |
| Design | Microcontroller based with 12 bit ADC and dual 12 bit DAC |
| Power Limit PL | Power Limit to restrict the analog control output = 1 to 100 %. |
| Control Outputs | DC pulses to drive external SSR,(4-20)mA,RL max = 300 Ohms. Or (0-5)VDC,RL min = 10K ohms. |
| Ramp or Soak Steps | 1 to 16 Steps. (No restrictions in programming - a ramp can be followed by a ramp and a soak can be |
| Set Temperature | Programmable for each steps in the full range of the specified input. In single set point or profile |
| Time per each Ramp or Soak Step | 1 to 999 mins. (16 Hrs. per step) Or 1 minute to 100 hours |
| Run from desired step number rFSn | This rFSn facility allows user to skip the ramp/soak steps and run the profile from the desired step |
| Program Hold Facility | Manual Hold or Auto Hold (Hold back feature for guaranteed Ramp/Soak facility) dHLd= 1 to 50 oC. |
| Front Panel LEDs | To display the status of control output,Alarms and Ramp/Soak status |
| Memory Backup | Retention of PID and set values in the non-volatile memory in the event of power failure |
| Alarm Outputs | High or Low or End of Profile Alarm Relays (OUT2 and OUT3) (contacts rated for 5A @ 230VAC). |
| Input | Thermocouple type J,K,R,S,B,or RTD(Pt-100)/2 or 3-wire,4-20mA/0-10V from Infrared pyrometer |
| Serial Communication Optional Feature | Optically isolated 2 wire RS485 interface on Modbus RTU protocol |
| Panel cut out | 92 x 92 mm +/- 0.5 mm |
| Enclosure | ABS plastic enclosure with ABS bazzel and polycarbonate front. |
| Range | Subject to the full range of the specified input. |
| Resolution | 0.1 / 1 Degree C Subject to the specified input type and range. |
| Indicating Accuracy | Better than +/- 0.1% of the range ( by software linearization of curves) |
| Tuning | Auto / Manual tuning of PID values. |
| Control Algorithm | PID mode for heating control,On/Off mode with programmable hysteresis. |
| Soft Start RT | Built in power on soft start (rt) for analog output = 1 to 99 seconds |
| Model | Product Description |
| PRC-300 | Ramp / Soak Programmable PID Temperature Controller – Single profile of 16 steps (Basic Model) |
Additional Information:
Product Details:
| Minimum Order Quantity | 1 Piece |
| Model No. | PRC-967 |
| Size | 96 x 96 mm |
| Control Type | PID/On-Off |
| Input Type | Thermocouple, Current (mA), RTD, Voltage (mV) |
| Control output Type | Analog (mA/mV), SSR |
| Brand | Libratherm |
| Display Type | 4 Digit/7 Segment |
| Voltage | 110-230 VAC |
| Frequency | 50/60 Hz |
| Country of Origin | Made in India |
| Alarm Outputs | High or Low or End of Profile Alarm Relays (OUT2 and OUT3) (contacts rated for 5A @ 230VAC). |
| Serial Communication Optional Feature | Optically isolated 2 wire RS485 interface on Modbus RTU protocol |
| Input | Thermocouple type J,K,R,S,B,or RTD(Pt-100)/2 or 3-wire,4-20mA/0-10V from Infrared pyrometer |
| Panel cut out | 92 x 92 mm +/- 0.5 mm |
| Enclosure | ABS plastic enclosure with ABS bazzel and polycarbonate front. |
| Range | Subject to the full range of the specified input. |
| Resolution | 0.1 / 1oC Subject to the specified input type and range. |
| Indicating Accuracy | Better than +/- 0.1% of the range ( by software linearization of curves) |
| Control Outputs | DC pulses to drive external SSR,(4-20)mA,RL max = 300 Ohms. Or (0-5)VDC,RL min = 10K ohms. |
| Soft Start RT | Built in power on soft start (rt) for analog output = 1 to 99 seconds |
| Power Limit PL | Power Limit to restrict the analog control output = 1 to 100 %. |
| Ramp or Soak Steps | 1 to 16 Steps. (No restrictions in programming - a ramp can be followed by a ramp and a soak can be |
| Set Temperature | Programmable for each steps in the full range of the specified input |
| Time per each Ramp or Soak Step | 1 to 999 mins. (16 Hrs. per step) Or 1 minute to 100 hours |
| Run from desired step number rFSn | This rFSn facility allows user to skip the ramp/soak steps and run the profile from the desired step |
| Program Hold Facility | Manual Hold or Auto Hold (Hold back feature for guaranteed Ramp/Soak facility) dHLd= 1 to 50 oC. |
| Front Panel LEDs | To display the status of control output,Alarms and Ramp/Soak status |
| Memory Backup | Retention of PID and Set values in the built in non-volatile memory - in case of power failure |
| Design | Microcontroller based with 12 bit ADC and dual 12 bit DAC |
| Model | Product Description |
| PRC-967 | Ramp / Soak Programmable PID Temperature Controller (Bigger display) – Single profile of 16 steps |
Additional Information:
Product Details:
| Minimum Order Quantity | 1 Piece |
| Model No. | PRC-309 |
| Size | 96 x 96 mm |
| Control Type | PID/On-Off |
| Input Type | Thermocouple, Voltage (mV), Current (mA), RTD |
| Control output Type | Analog (mA/mV), SSR |
| Brand | Libratherm |
| Accuracy | +/- 1% |
| Resolution | 0.1/1 Deg C Subject to the specified input and range |
| Display Type | 4 Digit/7 Segment |
| Voltage | 110-230 VAC |
| Frequency | 50/60 Hz |
| Enclosure | Metal Powder coated |
| Digit Display Size | Single Display |
| Type | Automatic |
Product Details:
| Minimum Order Quantity | 1 Piece |
| Model No. | PRC-312 |
| Control Type | PID/On-Off |
| Input Type | Thermocouple |
| Control output Type | Analog (mA/mV), SSR |
| Usage | Industrial Use |
| Brand | Libratherm |
| Display Type | 4 Digit/7 Segment |
| Voltage | 110-230 VAC |
| Frequency | 50/60 Hz |
| Usage/Application | Wax Burnout Furnace Control |
| Temperature Range | 0 to 1200 Degree C |
| Set Point | Programmable throughout the range. In single set point control mode,the set point can be changed. |
| Country of Origin | Made in India |
| Ramp or Soak Steps | 1 to 16 Steps. (No restrictions in programming - a ramp can be followed by a ramp and a soak can be |
| Auto or Manual Control | Auto to Manual bump less transfer of control output - to manually change the percentage of heating. |
| Relay Outputs | High or Low Alarm relay. End of Profile Relay (contacts rated for 5A @ 230VAC). |
| Memory Backup | Retention of PID and set values in the non-volatile memory in the event of power failure. |
| Resolution | 1oC Subject to the specified input and range. |
| Run from desired step facility rFSn | This facility allows user to skip the ramp/soak steps and run the profile from the desired step |
| Serial Communication Optional | RS485 on Modbus RTU protocol (in Slave mode). Standard window based PC software available at extra |
| Set Temperature | Programmable for each steps in the full range of the specified input |
| Supply | 115VAC or 240 VAC +/- 10% ( approx. 5VA),50/60Hz. |
| Time per Step | 1 to 540 minutes per step (max. 9 hours per step) |
| Control Algorithm | PID with pulse width modulation / time proportional On/Off mode with programmable hysteresis. (OUT1) |
| Control Outputs | 12 V DC pulse to drive external single phase or 3 phase SSR |
| Control mode | Single set point or Ramp/Soak profile mode - user selectable |
| Delayed Start | Internal timer to start the burn out cycle after the time delay 0.0 to 99.0 Hour (increment @ 0.5 H |
| Indicating Accuracy | Better than +/-0.1% of the range ( by software linearization of curves) |
| Input sensor | K type (Cr/Al) thermocouple |
| Model | Product Description |
| PRC-312 | Programmable Ramp/Soak PID and On-Off temperature controller with 10 profiles each of 16 ramp/soak steps with multiple display |
Additional Information:
Product Details:
| Model No. | PRC-300 |
| Size | 96 x 96 mm |
| Control Type | PID/On-Off |
| Input Type | Thermocouple, RTD |
| Control output Type | SSR, Analog (mA/mV) |
| Brand | Libratherm |
| Display Type | 4 Digit/7 Segment |
| Auto-tuning | Auto-tuning and manual tuning available |
| Design | Microcontroller based with 12 bit ADC and dual 12 bit DAC |
Product Details:
| Minimum Order Quantity | 1 Piece |
| Model No. | PRC-312 |
| Size | 96 x 96 mm |
| Control Type | PID/On-Off |
| Input Type | RTD, Current (mA), Thermocouple, Voltage (mV) |
| Control output Type | Relay, Analog (mA/mV) |
| Brand | Libratherm |
| Voltage | 90-270 VAC/DC |
Applications:
| Design | Microcontroller based design with 12 bit ADC and 12 bit DAC. |
| Input | Thermocouple type K (R, S, B type thermocouple or Pt-100 can also be offered against requirement) |
| Range | 0 to 1200 °C for K type thermocouple |
| 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 current Program number, 2 digit 0.3” for step number. | |
| 4 digit 0.3” for safety temperature and 4 digit 0.3” for the remaining time of the current step. | |
| Tuning | Manual tuning of PID and Hysterisis values. |
| Control Algorithm | Time proportional switching PID mode. Linear PID mode. 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°C (When Prb = 0), |
| Control mode | Single Set Point or Ramp/Soak Profile control – 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 minutes). |
| Set Point | Programmable throughout the range. In single set point control mode, the set point can be changed on line. |
| Control Outputs | 10V DC pulse to drive external SSR OR 4-20mA/0-5V/0-10V – to control through Libratherm Thyristor. |
| 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). |
| Time per Step | 1 to 540 minutes per step (max. 9 hours per step). |
| Number of Profiles | 1 to 10 profiles each of 16 ramp/soak steps can be programmed. |
| Run from desired step facility (rFSn) | This rFSn facility allows users 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). |
| Memory Backup | Retention of PID and set values in the non-volatile memory in the event of power failure. Auto start from the last setpoint 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. |
Additional Information: