Temperature & Process Indicator Controllers

Product Details:

Libratherm offers various models of Digital Temperature and Process On/Off Controllers. User has the choice of selecting the model based on the type of input, type of analog or digital interface, and required size. All the models are designed to suit most of the Industrial Applications.

This Digital On/Off Safety Controller is available in the size of 96w x 48h x 75d mm, accepts input from J, K, thermocouple, Pt-100, 4-20mA, and provides 2 relay output or 2 SSR output along with retransmission of 4-20mA.

Key Features:

• Microcontroller based design.
• Software linearized for better measurement accuracy.
• Works on universal 90-240 VAC.
• Universal and User selectable input from process transmitters/temperature sensors.
• 1 to 2 Relay or SSR Output.
• Industrial standard Analog and Digital Interface.

Product Details:

Model Wise Description:


Features:

• Latest and high speed 8-bit microcontroller based design
• 12-bit ADC and 12 bit DAC (4000 or +/-2000 counts)
• Fixed or User selectable input type
• 2 Relays or 2SSR driver and single 4-20mA analogue output
• On-Off, Time Proportional or PID (Direct/Reverse) control action
• Elegant looks and very user friendly operation.
• Light weight and low depth of just 75 mm.
• Operates on 12VDC/24VDC/230VAC / 90-240VAC

Applications:

• Electrical heater control in Boiler, Hot Air generator, heat exchanger etc.…
• Furnace and Oven control
• Deep freezer, chiller compressor control
• Any process control such as %Rh, Ph, ORP, Conductivity, Level etc.
• with High/Low Alarms

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:

• Item Code: PID-912_PID-913_PID-903
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Mumbai

Product Details:

Libratherm offers various models of Digital Temperature and Process PID Controllers. The user has the choice of selecting the model based on the type of Input, type of analog or digital interface, and required size. All the models are designed to suit most of the Industrial applications.

This High-Temperature PID Controller is available in the size of 48w x 96h x 75d mm, accepts input from J, K, thermocouple, Pt-100, 4-20mA, and provides SSR output, 4-20mA output, 1 relay output.

Key Features:

• Microcontroller based Design
• Software linearized for better measurement accuracy
• Field proven PID algorithm
• Works on universal 90-240VAC
• Universal and User selectable input from process transmitters/temperature sensors
• 1 to 4 Relay or SSR or 4-20mA/0-5V/0-10V control Output
• Industrial standard Analog and Digital Interface

Product Details:

Libratherm offers various models of Digital Temperature and Process PID Controllers. The user has the choice of selecting the model based on the type of Input, type of analog or digital interface, and required size. All the models are designed to suit most of the Industrial applications.

This Hight-Temperature PID Controller is available in the size of 96w x 48h x 75d mm, accepts input from J, K, thermocouple, Pt-100, 4-20mA, and provides SSR output, 4-20mA output, 1 relay output.

Key Features:

• Microcontroller based Design
• Software linearized for better measurement accuracy
• Field proven PID algorithm
• Works on universal 90-240VAC
• Universal and User selectable input from process transmitters/temperature sensors
• 1 to 4 Relay or SSR or 4-20mA/0-5V/0-10V control Output
• Industrial standard Analog and Digital Interface

Product Details:

We are offering Process Control Ramp Soak Controller and various ranges.

Digital Controller:
• ON/OFF Temperature / Process Controller
• PID Temperature / Process Controller
• Digital Ramp / Soak Programmers
• Digital Multiloop Programmers
• Digital HVAC Controller
• Digital T+RH Controller
• Digital Deep Freezer Ultra Low Deep

Technical Specifications:
Input Thermocouple type J, K, or RTD(Pt-100) 2 or 3-wire or 4-20mA linear signal (User selectable)Range: For K type : 0 to 1372 Deg C, For J type : 0 to 760 Deg C.For Pt-100 : -199.9 to 200 Deg C or 0.0 to 400 Deg C or 0 to 600 Deg C.For 4-20mA : -1500 to 2000 or 0 to 3500 counts (With programmable decimal point)Resolution 0.1/1 Deg C Subject to the specified input and rangeDisplay 4 digit 0.5” Red 7-segment LED display for process value4 digit 0.5” Red 7-segment LED display for set value (*)CJC Built-in automatic from 0 - 50OcOpen sensor indication Fault message is displayed and outputs are turned off for fail safeoperation.Control Mode Heating or Cooling – user selectableNo. Of Set points Two, and configurable for High, Low, Deviation and Off mode.Control outputs 2 DC pulses (0 to 10VDC) and 2 Relay contacts (5A @ 230VAC) or2 DC pulses (0 to 10VDC) and 2 AC SSR or Triac (2A @ 230VAC)Output indication Front panel LED indication for Outputs and Selected set point.Retransmission Output 4-20mA proportional to displayed range of the selected input.RLmax = 400 OhmsKey board settings Front panel membrane key pad for parameter settings.

Product Details:

One Or Two Set Point On-off Temperature Process Controller

Libratherm offers New version HTC-480 which are designed and developed using the latest micro-controller. The specification incorporated serves the every simple and critical process control applications of the industry. It accepts input from temperature sensors like thermocouple, RTD (Pt-100), Infrared thermocouple, or pyrometers generating mV or mA signals or from the level/flow/pressure/pH transmitters in the form of (4-20) mA. The input signals from thermocouples and RTD (Pt-100) are software Linearized for 1oC/0.1oC indicating accuracy. It can also be used for other process control applications like pressure control, level control etc. accepting input signals from the respective transmitter or transducers.

HTC-723 / HTC-966 accepts universal input. User can select one of 8 different types of input using back panel DIP switch. This is the added advantage over the fixed type of input.

The controller HTC-723 and HTC-966 has respectively 2 to 4 and 2 to 6 programmable set points. Each can be configured as either High Alarm or Low Alarm or Deviation Alarm or for Off state with programmable ON/OFF hysterisis through user friendly membrane key board. Dual 4 digits display allows simultaneous indications of the process value and the set value. In addition these models can give two nos. retransmission output of 4-20mA proportional to process value, for remote indication of the process value.

Features:

• Highly accurate and sturdy in operation.
• Elegant looks, Very easy to operate.
• Accepts standard type of thermocouple or RTD (Pt-100) 2 or 3-wire input.
• Control output of Relay or DC pulse or TRAIC.
• Programmable Hysterisis.
• User configurable output up to 4 or 6 set points.
• Models available in 2, 3 and 4 configurable set points
• High quality membrane keypad.
• Operates on Universal supply of 90 to 250 VAC, 50/60 Hz.

Application:
• Pressure control
• Heater bank selection
• Star delta changeover
• Level control
• Process industry
• Plastic / Packaging industry

Additional Information:

• Item Code: HTC-480
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Mumbai

Product Details:

Two To Four Set Point On-off Temperature Process Controller

Libratherm offers New version HTC-723 which are designed and developed using the latest micro-controller. The specification incorporated serves the every simple and critical process control applications of the industry. It accepts input from temperature sensors like thermocouple, RTD (Pt-100), Infrared thermocouple, or pyrometers generating mV or mA signals or from the level/flow/pressure/pH transmitters in the form of (4-20) mA. The input signals from thermocouples and RTD (Pt-100) are software Linearized for 1oC/0.1oC indicating accuracy. It can also be used for other process control applications like pressure control, level control etc. accepting input signals from the respective transmitter or transducers.

HTC-723 (Size: 72 x 72 x 120 mm)/ HTC-966 (Size: 96 x 96 x 120 mm) accepts universal input. User can select one of 8 different types of input using back panel DIP switch. This is the added advantage over the fixed type of input.

The controller HTC-723 and HTC-966 has respectively 2 to 4 and 2 to 6 programmable set points. Each can be configured as either High Alarm or Low Alarm or Deviation Alarm or for Off state with programmable ON/OFF hysterisis through user friendly membrane key board. Dual 4 digits display allows simultaneous indications of the process value and the set value. In addition these models can give two nos. retransmission output of 4-20mA proportional to process value, for remote indication of the process value.

Features:
• Highly accurate and sturdy in operation.
• Elegant looks, Very easy to operate.
• Accepts standard type of thermocouple or RTD (Pt-100) 2 or 3-wire input.
• Control output of Relay or DC pulse or TRAIC.
• Programmable Hysterisis.
• User configurable output up to 4 or 6 set points.
• Models available in 2, 3 and 4 configurable set points
• High quality membrane keypad.
• Operates on Universal supply of 90 to 250 VAC, 50/60 Hz.

Application:
• Pressure control
• Heater bank selection
• Star delta changeover
• Level control
• Process industry
• Plastic / Packaging industry

Additional Information:

• Item Code: HTC-723
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Mumbai

Product Details:

Two To Six Set Point On-off Temperature Process Controller

Libratherm offers New version HTC-966 which are designed and developed using the latest micro-controller. The specification incorporated serves the every simple and critical process control applications of the industry. It accepts input from temperature sensors like thermocouple, RTD (Pt-100), Infrared thermocouple, or pyrometers generating mV or mA signals or from the level/flow/pressure/pH transmitters in the form of (4-20) mA. The input signals from thermocouples and RTD (Pt-100) are software Linearized for 1oC/0.1oC indicating accuracy. It can also be used for other process control applications like pressure control, level control etc. accepting input signals from the respective transmitter or transducers.

HTC-723 / HTC-966 accepts universal input. User can select one of 8 different types of input using back panel DIP switch. This is the added advantage over the fixed type of input.

The controller HTC-723 and HTC-966 has respectively 2 to 4 and 2 to 6 programmable set points. Each can be configured as either High Alarm or Low Alarm or Deviation Alarm or for Off state with programmable ON/OFF hysterisis through user friendly membrane key board. Dual 4 digits display allows simultaneous indications of the process value and the set value. In addition these models can give two nos. retransmission output of 4-20mA proportional to process value, for remote indication of the process value.

Features:
• Highly accurate and sturdy in operation.
• Elegant looks, Very easy to operate.
• Accepts standard type of thermocouple or RTD (Pt-100) 2 or 3-wire input.
• Control output of Relay or DC pulse or TRAIC.
• Programmable Hysterisis.
• User configurable output up to 4 or 6 set points.
• Models available in 2, 3 and 4 configurable set points
• High quality membrane keypad.
• Operates on Universal supply of 90 to 250 VAC, 50/60 Hz.

Application:
• Pressure control
• Heater bank selection
• Star delta changeover
• Level control
• Process industry
• Plastic / Packaging industry

Additional Information:

• Item Code: HTC-966
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Mumbai

Product Details:

2 Set Points Temperature Process On-Off Controller

Libratherm offers New version (Model HTC-948 and HTC-489) which are designed and developed using the latest micro-controller. The specification incorporated serves the every simple and critical process control applications of the industry. It accepts input from temperature sensors like thermocouple, RTD (Pt-100), Infrared thermocouple, or pyrometers generating mV or mA signals or from the level/flow/pressure/pH transmitters in the form of (4-20) mA. The input signals from thermocouples and RTD (Pt-100) are software Linearized for 1oC/0.1oC indicating accuracy. It can also be used for other process control applications like pressure control, level control etc. accepting input signals from the respective transmitter or transducers.
HTC-948 / HTC-489 accepts universal input. User can select one of 8 different types of input using side panel DIP switch. This is the added advantage over the fixed type of input.
The controller HTC-948 and HTC-489 has 2 programmable set points. Each can be configured as either High Alarm or Low Alarm or Deviation Alarm or for Off state with programmable ON/OFF hysterisis through user friendly membrane key board. Dual 4 digits display allows simultaneous indications of the process value and the set value. In addition this model can give retransmission output of 4-20mA proportional to process value having 12bit resolution, which can be used for remote indication of the process value or input to other process controller or PLC.

Features:

• Highly accurate and sturdy in operation.
• Elegant looks, Very easy to operate.
• Accepts standard type of thermocouple or RTD (Pt-100) 2 or 3-wire input.
• Control output of Relay or DC pulse or TRAIC.
• Programmable Hysterisis.
• User configurable output upto 2 set points.
• High quality membrane keypad.
• Operates on Universal supply of 90 to 250 VACS, 50/60 Hz.

Applications:

• Temperature control
• Pressure control
• Heater bank selection
• Star delta changeover
• Level control

Additional Information:

• Item Code: HTC-948
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Mumbai

Product Details:

Two Set Points Temperature Process On-off Controller

Libratherm offers New version HTC-489 which are designed and developed using the latest micro-controller. The specification incorporated serves the every simple and critical process control applications of the industry. It accepts input from temperature sensors like thermocouple, RTD (Pt-100), Infrared thermocouple, or pyrometers generating mV or mA signals or from the level/flow/pressure/pH transmitters in the form of (4-20) mA. The input signals from thermocouples and RTD (Pt-100) are software Linearized for 1oC/0.1oC indicating accuracy. It can also be used for other process control applications like pressure control, level control etc. accepting input signals from the respective transmitter or transducers.

HTC-489 accepts universal input. User can select one of 8 different types of input using side panel DIP switch. This is the added advantage over the fixed type of input.

The controller HTC-948 and HTC-489 has 2 programmable set points. Each can be configured as either High Alarm or Low Alarm or Deviation Alarm or for Off state with programmable ON/OFF hysterisis through user friendly membrane key board. Dual 4 digits display allows simultaneous indications of the process value and the set value. In addition this model can give retransmission output of 4-20mA proportional to process value having 12bit resolution, which can be used for remote indication of the process value or input to other process controller or PLC.

Features:

• Highly accurate and sturdy in operation.
• Elegant looks, Very easy to operate.
• Accepts standard type of thermocouple or RTD (Pt-100) 2 or 3-wire input.
• Control output of Relay or DC pulse or TRAIC.
• Programmable Hysterisis.
• User configurable output upto 2 set points.
• High quality membrane keypad.
• Operates on Universal supply of 90 to 250 VACS, 50/60 Hz.

Applications:

• Temperature control
• Pressure control
• Heater bank selection
• Star delta changeover
• Level control

Technical Specifications:

• Input: Thermocouple type J, K, RTD(Pt-100) 2 or 3-wire input, (0-10)V and (4 – 20)mA ( single fixed or 4 Universal)
• Range: Subject to the full range of the specified input (Refer table)
• Resolution: 0.1/1 Degree C/ unit subject to the specified input and range
• Indicating Accuracy: Better than ± 1 Degree C / 0.1 Degree C /0.1 % of the specified range and the input (Software linearized for thermocouple and RTD inputs)
• Display: 4 digit 0.25” Red 7-segment LED display for process value. 4 digit 0.25” Green/Red 7-segment LED display for set value.
• CJC: Built-in automatic from 0 – 50 Degree C (applies only for thermocouple)
• Open sensor detection: Provided, outputs are turned off for fail safe operations.
• Control Mode: Each output is user configurable for High/Low/Deviation/Off state.
• Control Action: ON / OFF with programmable Hysterisis.
• No. of Set points: 2 set points programmable of range of selected input type.
• Control outputs: DC pulses or only 2 Relays or 2 AC SSR (Triacs).

Additional Information:

• Item Code: HTC-489
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Mumbai

Product Details:

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 1 Degree C/0.1 Degree C Indicating accuracy is guaranteed using software linearization algorithm and with linearized retransmission output. 
Model Wise Description:


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 controller series DPC-903, DPI-912 and DPI-913 in 1/8DIN and 1/4DIN cut out sizes, offers both on-off and time proportional control logic and can be used for heating/cooling or any process control application with high/low configurable alarm relays. Linearized 4-20mA retransmission output is the added facility. Please see details specification sheet as given below.

Features:

• Latest and high speed 8-bit microcontroller based design
• 12-bit ADC and 12 bit DAC (4000 or +/-2000 counts)
• Fixed or User selectable input type
• 2 Relays or 2SSR driver and single 4-20mA analogue output
• On-Off, Time Proportional or PID (Direct/Reverse) control action
• Elegant looks and very user friendly operation.
• Light weight and low depth of just 75 mm.
• Operates on 12VDC/24VDC/230VAC / 90-240VAC
• Indicating Accuracy: +/- 1 Degree C for Thermocouple throughout the range and +/- 0.1 Degree C for Pt-100 for (4-20)mA or (0-10)V - absolute to the linear input signal

Applications:

• Electrical heater control in Boiler, Hot Air generator, heat exchanger etc.…
• Furnace and Oven control
• Deep freezer, chiller compressor control
• Any process control such as %Rh, Ph, ORP, Conductivity, Level etc.
• with High/Low Alarms

Additional Information:

• Item Code: DPC-903_DPI-912_DPI-913
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Mumbai

Product Details:

Model Wise Description

Model LSC-120
Product Description
Size (mm.) 45 x 75 x 110
DIN rail mount temperature safety controller

Description

Libratherm offers simple safety Temperature Controller, which is low cost, accurate, rugged and reliable instrument, designed to use as redundant protection controller in addition to main DDC/PID/PLC controller. It can very well be used in place of conventional capillary type thermostat.

Capillary type thermostat has limitation of installation and sensing point. The sensing distance is restricted due to fixed length of capillary tube (max. 1 feet) and which is not always feasible on the site.

Since LSC-120 can be used with standard RTD or K type thermocouple, there is no limitations of location of sensing point. Sensor can be installed with any length of extension cable and it can be installed in the panel or in the far safe location, away from heat, oil, moisture and dust free zone.

LSC-120 offers safety temperature setting using front panel accurately calibrated dial. The internal relay will trip, when actual temperature crosses the set value. Front panel LED indicates the status of power, faulty sensor and trip relay.

Features

Elegant appearance and compact in size.

Accuracy better than +- 0.5 % of the full scale.

Accepts standard type of thermocouple or RTD - Pt-100.

Control output Relay

Uses high quality potentiometer

IP65 ABS enclosure

Applications

AHU / HVAC

Furnace / Oven control

Food processing

Cold Storage and Chilling plants

Laboratory equipment etc.

Additional Information:

• Item Code: LSC-120
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Mumbai

Product Details:

Libratherm offers large display digital indicator to monitor the temperature / process value from long distance or height. The indicator is housed in a sturdy powder coated metal enclosure and can be mounted at a height. It accepts factory set thermocouple, Pt-100 or universal analog signal of 4-2mA, 0-20mA, 0-5VDC or 0-10VDC which can be scaled and calibrated by user in the range of 0 to 4000 / 9999 counts or -1999 to 1999 / 9999 count with selection facility for decimal point.

Additional Information:

• Item Code: DPI-4000-D
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Mumbai

Product Details:

Libratherm offers New version LPI-948 which are designed and developed using the latest micro-controller. The specification incorporated serves the every simple and critical process measurement applications of the industry. It accepts input from temperature sensors like thermocouple, RTD (Pt-100), Infrared thermocouple, or pyrometers generating mV or mA signals or from the level/flow/pressure/pH transmitters in the form of (4-20) mA. The input signals from thermocouples and RTD (Pt-100) are software Linearized for 1oC / 0.1oC indicating accuracy. It can also be used for measurement of other process parameter accepting input signals from the process transmitter or transducers with facility to select the decimal point on the display.

Features:

• Highly accurate and sturdy in operation.
• Elegant in appearance and very easy to operate.
• Accepts standard type of thermocouple or RTD (Pt-100) 2 or 3-wire input.
• High quality membrane keypad.
• Operates on Universal supply of 90 to 250 VAC, 50/60 Hz.
• 4-20 mA Retransmission of high resolution and RS485 interface can be given to PLC.

Application:

• On line and continuous measurement of Industrial Temperature and Process values with facility for analog and digital interface to DCS, PLC or Process controllers..

Additional Information:

• Item Code: LPI-948-F
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Mumbai

Product Details:

Libratherm offers New version HTI-966-T which are designed and developed using the latest micro-controller. The specification incorporated serves the every simple and critical process measurement applications of the industry. It accepts input from temperature sensors like thermocouple, RTD (Pt-100), Infrared thermocouple, or pyrometers generating mV or mA signals or from the level/flow/pressure/pH transmitters in the form of (4-20) mA. The input signals from thermocouples and RTD (Pt-100) are software Linearized for 1oC / 0.1oC indicating accuracy. It can also be used for measurement of other process parameter accepting input signals from the process transmitter or transducers with facility to select the decimal point on the display.

Features:

• Highly accurate and sturdy in operation.
• Elegant in appearance and very easy to operate.
• Accepts standard type of thermocouple or RTD (Pt-100) 2 or 3-wire input.
• High quality membrane keypad.
• Operates on Universal supply of 90 to 250 VAC, 50/60 Hz.
• 4-20 mA Retransmission of high resolution and RS485 interface can be given to PLC.

Application:
• On line and continuous measurement of Industrial Temperature and Process values with facility for analog and digital interface to DCS, PLC or Process controllers..

Additional Information:

• Item Code: DTI-966-T
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Mumbai

Product Details:

PRODUCT DESCRIPTION:

Libratherm offers six tank liquid level controller model LLC-06, designed to control the liquid level in the six independent tanks. It accepts 4 wire (3 + 1 common) of liquid level sensor in the form of potential free contacts for each tank to detect HI level, MED level and LOW level. Internal electronics circuit monitors the level from the level sensors and displays the status of each using the front panel LEDs. Two sets of 5A @ 230VAC relay contact output is provided for each tank, which can be used to control the Feed pump or the Delivery pump as per the users requirement. The controller operates on 230VAC supply and is available in 1/2 DIN size of 192 x 96 x 200 mm.

LLC-06 finds its application in the industries manufacturing breweries, aerated drinks, fruit juices, pharmaceutical syrups etc... where to prepare final product the different liquids are mixed from the different tanks and maintaining their level is a critical process. The controller featured here can maintain the desired levels of up to six tanks.

Additional Information:

• Item Code: LLC-06
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Mumbai
• Production Capacity: 1