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PID Controllers Single Loop and Multi Loops

PID Process Controller

Approx. Rs 4,500 / Unit


The Microprocessor based PID Temperature / Process Controller that we manufacture are 4 digits 0.5" Red 7-segment display for process variable and 4 digits 0.3” for Set Value. Its unique features include.

PID Temperature Controller

PID Temperature Controller

Approx. Rs 4,500 / Unit


Our range of Micro-controller based PID temperature and process controller is dual heat/cool output in the form of DC pulse with direction control for motorized valves.

Features:

PID Controller Single Loop

PID Controller Single Loop

Approx. Rs 5,000 / Unit


Libratherm offers new PID controller, Model PID-480. This is designed and developed using the latest microcontroller chip and programmed with the time-tested and field-proven PID algorithm. PID controllers are mainly used for the precise process control. Unlike On/Off type of oscillatory control, PID control action gives smooth and steady-state control. This model offer, all the useful features which are required to control the complex system.

This model accepts factory set single fixed input or the user selectable universal input. The control action is user selectable as PID or On/Off for both direct and reverse or Heat and Cool action. Control outputs are given in the form of optically isolated DC pulse to drive external SSR, Triac or AC SSR to operate AC operated load, electromechanical relay and/or linear analog output. The analog output levels can also be configured for (0-20)mA or (4-20)mA or (0-5) volt using the front panel keyboard.

In brief, PID-480 provides 2 switching outputs and 2 analog outputs. Both Auto and manual tuning of PID values makes the controller versatile and user-friendly. The model PID-480 being small in size, can easily be accommodated in small size equipment. One Ramp/Soak function allows user to gradually increase the set value and hold the process value for desired soak time.

Libratherm also offers customized algorithm for special purpose applications, where user or OEM wants to have control and logic action to suit their application.

Additional Information:

PID Temperature / Process Controller Single Loop (1/16 DIN)

PID Temperature / Process Controller Single Loop (1/16 DIN)
  • PID Temperature / Process Controller Single Loop (1/16 DIN)
  • PID Temperature / Process Controller Single Loop (1/16 DIN)
  • PID Temperature / Process Controller Single Loop (1/16 DIN)

Approx. Rs 5,500 / Number


Model Wise Description:

ModelDescription Size (mm.)
PID-480-UPID Controller (Universal Input)48 x 48 x 110
PID-480-FPID Controller (Fixed Input)48 x 48 x 110

Description:

Libratherm offers new PID controller, Model PID-480. This is designed and developed using the latest microcontroller chip and programmed with the time tested and field proven PID algorithm. PID controllers are mainly used for the precise process control. Unlike On/Off type of oscillatory control, PID control action gives smooth and steady state control. This model offer, all the useful features which are required to control the complex system.

This model accepts factory set single fixed input or the user selectable 4 universal inputs. The control action is user selectable as PID or On/Off for direct (Cool) or reverse(Heat) action. Control outputs are given in the form of optically isolated DC pulse to drive external SSR. The analog PID control output level can also be configured for (0-20) mA or (4-20)mA or (0-5) volt using the front panel key board. Analog output can be used to control heating through thyristor or proportional valve. Additional analog output can also be provided as retransmission output proportional to the process input. Two electromechanical relays are available, which can be used as High and Low alarms.

In brief, PID-480 provides 2 switching SSR output and 2 analog outputs with 2 alarm output. Various combinations of outputs are possible to meet end application. Both Auto and manual tuning of PID values makes the controller versatile and user friendly. The model PID-480 being small in size, can easily be accommodated in small size equipments.

Libratherm also offers customized algorithm for special purpose applications, where user or OEM wants to have control and logic action to suit their application.

Features:

Applications:

Additional Information:

PID Controller with Universal Input PID-966

PID Controller with Universal Input PID-966
  • PID Controller with Universal Input PID-966
  • PID Controller with Universal Input PID-966

Approx. Rs 6,500 / Number


Model Wise Description:

ModelDescription  Size (mm.)
PID-966-F PID Controller (Fixed Input)96 x 96 x 120
PID-966-U PID Controller (Universal Input)96 x 96 x 120

Description:

Libratherm offers new improved version of PID controllers, Model PID-966. It is designed and developed using the latest microcontroller chip and programmed with the time tested and field proven PID algorithm. PID controllers are mainly used for the precise process control. Unlike On/Off type of oscillatory control, PID control action gives smooth and steady state control. These model offers, all the useful features which are required to control the complex system.

These models accept factory set single or dual fixed input or user selectable  single universal input. The control action is user selectable as PID or On/Off for both direct and reverse or Heat and Cool action. Control outputs are given in the form of optically isolated DC pulse to drive external SSR, Triac / AC SSR to operate AC operated load such as solenoid valve or electro mechanical relay. Linear analog outputs of 4-20mA/0-10VD/0-5VDC are also available and can be used for linear signal operated actuators or Thyristor power regulators.
 
Libratherm also offers customized algorithm for special purpose applications, where user or OEM wants to have control and logic action to suit their application.

Features:

Applications:

Additional Information:

PID Temperature Controller (1/16 DIN - 5 Digit Display)

PID Temperature Controller (1/16 DIN - 5 Digit Display)
  • PID Temperature Controller (1/16 DIN - 5 Digit Display)
  • PID Temperature Controller (1/16 DIN - 5 Digit Display)
  • PID Temperature Controller (1/16 DIN - 5 Digit Display)

Approx. Rs 7,500 / Number


Model Wise Description:

ModelDescription  Size (mm.)
PID-485-F PID Temperature Controller with 0.01oC control accuracy48 x 48 x 110

Description:

Libratherm offers new high accuracy PID controller, Model PID-485 for systems requiring very precise temperature control accuracy. This is designed and developed using the latest microcontroller chip and 16 bit ADC and programmed with the time tested and field proven PID algorithm. Normally standard PID controllers are available with 4 digit display, whereas this model is designed using 5 digit display for 0.01oC of resolution and control accuracy. PID controllers are mainly used for the precise process control. Unlike On/Off type of oscillatory control, PID control action gives smooth and steady state control. This model offers all the useful features which are required to control very precisely the most complex system.

This model accepts factory set single fixed input of either Pt-100 or Pt-1000.  Control outputs are given in the form of optically isolated DC pulse to drive external SSR.

Features:

Applications:

Additional Information:

PID Temperature Controller Multi-Loops

PID Temperature Controller Multi-Loops

Approx. Rs 25,000 / Number


Model Wise Description:

ModelDescription     ( X = No. of loop )
PID-8000-H-44 loop PID Controller for heating control
PID-8000-H-66 loop PID Controller for heating control
PID-8000-H-88 loop PID Controller for heating control
PID-8000-HC-44 loop PID Controller for heating and cooling control
PID-8000-HC-66 loop PID Controller for heating and cooling control
PID-8000-HC-88 loop PID Controller for heating and cooling control

Description:
Libratherm offers Microprocessor based one to eight loop PID Temperature Controller (Model PID-8000) for processes requiring multiple zones heating or heating plus cooling control.  It is most suitable for difficult process, which results in frequent system disturbances, and applications where simultaneous and accurate temperature control of number of heating/cooling zone is required. It also eliminates the need for number of individual PID or ON/OFF Temperature Controllers thereby saves on cost. PID-8000 can accept 8 similar type of Thermocouples or RTD (Pt-100) inputs and can provide switching PID or ON/OFF Control output in the form of DC Pulses or SSR Drivers for heating and cooling. It can also simultaneously provide 8 analog PID control Outputs in the form of (4-20mA) or (0-5) volt, which can be used to drive external SCR Heater Power Controller or other actuators. Open or Faulty sensor indications for each zone is also displayed with the respective Zone No. Each zone loop parameters like PID, SET, Hysterisis, Power Limit and Ramp Time values can be independently programmed from the user-friendly front panel membrane keyboard.

The display scan rate is programmable from 1 to 99 seconds, whereas the internal control scanning is at the rate of 100mS. It also provides common High and Low alarm relay outputs, which can be used for external temperature dependent, inter locking or audio-visual alarms. In brief, PID-8000 is as good as 8 independent PID controllers in a single enclosure, with facility of different input per channel, different set point per channel and different output per channel – a unique feature. 

The serial interface of RS-485 in Modbus protocol is also optionally available for computer interface. The supporting window based software allows user to monitor behavior all the heating zones in both graphical and tabular form.

Features:

Application:

Additional Information:

PID Controllers-Single and Two Loops

PID Controllers-Single and Two Loops
  • PID Controllers-Single and Two Loops
  • PID Controllers-Single and Two Loops

Approx. Rs 7,500 / Number


Model Wise Description:
ModelDescription  Size (mm.)
PID-723-U PID Controller (Universal Input)72 x 72 x 120
PID-966-U PID Controller (Universal Input)96 x 96 x 120
PID-948-U PID Controller (Universal Input)96 x 48 x 110
PID-489-U PID Controller (Universal Input)48 x 96 x 110
PID-723-F PID Controller (Fixed Input)72 x 72 x 120
PID-966-F PID Controller (Fixed Input)96 x 96 x 120
PID-948-F PID Controller (Fixed Input)96 x 48 x 110
PID-489-F PID Controller (Fixed Input)48 x 96 x 110 
PID-966-T PID Controller with (Two fixed input) 96 x 96 x 120 

Description:

Libratherm offers Four new models of PID controllers ,Model PID-723,PID-966,PID-948 and PID-489. These are designed and developed using the latest microcontroller chip and programmed with the time tested and field proven PID algorithm. PID controllers are mainly used for the precise process control. Unlike On/Off type of oscillatory control, PID control action gives smooth and steady state control. These model offers, all the useful features which are required to control the complex system.

These models accept factory set single or dual fixed input or the user selectable universal input. The control action is user selectable as PID or On/Off for both direct and reverse or Heat and Cool action . Control outputs are given in the form of optically isolated DC pulse to drive external SSR, Triac or AC SSR to operate AC operated load, electro mechanical relay and/or  linear analog output.  The analog output levels can also be configured for (0-20)mA or (4-20)mA or  (0-5) / (0-10) volt  using the front panel key board, 

In brief, PID-723, PID-948 and PID-489 provides 4 switching outputs and 2 analog outputs whereas PID-966 provides 6 switching and two analog outputs. Both Auto and manual tuning of PID values makes the controller versatile and user friendly. The model PID-723,PID-948 and PID-489 being small in size, can easily be accommodated in small size equipments. One Ramp/Soak function allows user to gradually increase the set value and hold the process value for desired soak time.

Features:

Applications:

Additional Information:

PID Controller Single Loop for Servo Valve Control

PID Controller Single Loop for Servo Valve Control

Approx. Rs 12,500 / Number


Description:

Libratherm offers new model of PID controller, Model LPC-488 mainly designed for Ceramic tiles and utensils manufacutrers. LPC-488 is designed and developed using the latest microcontroller chip and programmed with the time tested and field proven PID algorithm. PID controllers are mainly used for the precise process control. Unlike On/Off type of oscillatory control, PID control action gives smooth and steady state control. LPC-488 offers, all the useful features which are required to control the temperature very precisely.

LPC-488 accepts K, R,S type thermocouple or 4-20mA as the input and provide PID control output in the form of 0-10VDC or 4-20mADC to control the servo motor valve to control the fuel flow. Front panel shows the actual temperature, set temperature and % of control output giving the indication of valve opening.

Features:

Applications:

Additional Information:

Temperature Process Indicator ECO Model DPI-902, DPI-912

Temperature Process Indicator ECO Model DPI-902, DPI-912

Approx. Rs 3,500 / Number


Features:
Applications:


Description
:

Libratherm  has contributed its 25 years of experience by designing these versatile series of microcontroller based Temperature/Process Indicators and controllers for general purpose Industrial usage.

These are developed and manufactured  to   suit  varied  industrial  temperature  and process indication and  control  applications where precise indicating and controlling accuracy.    

The Indicator series DPI-912 and DPI-902 offers Universal or fixed input of J, K or any other thermocouple, RTD(Pt-100) and 4-20mA linear signal. For temperature measurement 1oC/0.1oC Indicating accuracy is guaranteed using software linearization algorithm and with linearized retransmission output. Please see details specification sheet as given below.

Additional Information:

PID Temperature Process Controller with Relay/SSR/4-20mA

PID Temperature Process Controller with Relay/SSR/4-20mA
  • PID Temperature Process Controller with Relay/SSR/4-20mA
  • PID Temperature Process Controller with Relay/SSR/4-20mA

Approx. Rs 4,500 / Number


Model Wise Description:

ModelProduct DescriptionSize w x h x d (mm.)
PID-903Temperature/Process PID controller with Relay/SSR/4-20mA Output96 x 96 x 75
PID-912Temperature/Process PID controller with Relay/SSR/4-20mA Output96 x 48 x 75
PID-913Temperature/Process PID controller with Relay/SSR/4-20mA Output48 x 96 x 75

Features
:

Applications
:


Description
:

Libratherm  has contributed its 25 years of experience by designing these versatile series of microcontroller based Temperature/Process Indicators and controllers for general purpose Industrial usage.

These are developed and manufactured  to   suit  varied  industrial  temperature  and process indication and  control  applications where precise indicating and controlling accuracy.    

The PID controller series PID-903, PID-912 and PID-913 in 1/8DIN and 1/4DIN cut out sizes, offers both on-off and linear or switching PID control logic and can be used for heating or any process control application with high or low configurable alarm relays. Linear PID control output can be used to control heating power through external Thyristor power regulator or through linear proportional valves in direct or reverse action or same 4-20mA can be used as linearized retransmission output. Please see details specification sheet as given below.

Additional Information:

PID Temperature Controller 5 DIGIT PID-967

PID Temperature Controller 5 DIGIT PID-967

Approx. Rs 13,500 / Number


Description:

Libratherm offers 5 digit PID controller model PID-967, which is designed and developed using the latest high speed 8 bit microcontroller chip incorporating 16 bit ADC and 12 bit DAC and programmed with the time tested and field proven PID algorithm. PID controllers are mainly used for the precise process control. Unlike On/Off type of oscillatory control, PID control action gives smooth and steady state control. This model offers all the useful features which are required to control the complex system.

PID-967 accepts universal single input. The control action is user selectable as PID or On/Off for both direct and reverse or Heat and Cool action. Control outputs are given in the form of optically isolated DC pulse to drive external SSR, Triac or AC SSR to operate AC operated load, electro mechanical relay and/or  linear analog output of 4-20mA,0-5V or 0-10VDC to drive external thyristor based power regulators.

Features:

Additional Information:
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    Kamlesh Panchal

    (Managing Director)

    Libratherm Instruments Private Limited

    Dahisar East, Mumbai, Maharashtra, India

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