Libratherm Instruments Private Limited

Product Description:ISM-10-1-1 (L) – Single input & Single output operating on 230VAC supply.

Key Features

• Accepts DC signal inputs and provides optically isolated proportional analogue output.
• On site calibration facility-using ZERO/SPAN presets.
• Operates on 230VAC or 24VDC (18-36) VDC.
• Designed using ultra low drift components for long term stability.

Application:

• The interface of low-level signals coming from the sensors or transducers from the plant to DCS, SCADA, PLC or PID process controllers without ground line interferences.
• Signal multiplier – single input and 2 to 4 outputs.

Technical Specification


Ordering Information

Product Description:ISM-10-1-2 (L) – Single input & 2 output operating on 230VAC supply.

Key Features 

• Accepts DC signal inputs and provides optically isolated proportional analogue output.
• On site calibration facility-using ZERO/SPAN presets.
• Operates on 230VAC or 24VDC (18-36) VDC.
• Designed using ultra low drift components for long term stability.

 Application

• The interface of low-level signals coming from the sensors or transducers from the plant to DCS, SCADA, PLC or PID process controllers without ground line interferences.
• Signal multiplier – single input and 2 to 4 outputs.

Technical Specification


Ordering Information

Libratherm offers AC / DC Signal Convertor cum Isolator (Model: ISM-10), designed in 35 mm. DIN Rail compatible modules. These modules accepts AC/DC input signal and provides optically / galvanically isolated output in the form of (4-20)mA or (0-5)V or (0-10)V proportional to the input signal. Both the input and output levels have their grounds optically / galvanically isolated. Thus the process signals received from the Transducers or transmitters or Sensors can be directly connected through ISM-10 to the PLC, DCS or to any other electronics in the process industry accepting such signals, without any signal loss or ground line interference. The ZERO and SPAN presets are accessible to the user for onsite calibration and matching.

These modules operate on 230 VAC or 110 VAC supply or 24VDC. The module with single input and multiple parallel outputs (Model ISM-10-X and ISM-12-X) can also be provided to meet the process control requirement requiring simultaneous change of 2 to 4 outputs proportional to the single input variation. These modules are rugged, reliable, field proven and economically priced.

New model ISM-12-2-X for two input and two/four output is also available for V to V, V to I, I to I or I to V conversion.

Differential Pressure Transmitter model DPX-3000 are designed using the temperature compensated, piezo -resistive silicon pressure sensor packaged in a dual-inline configuration and intended for cost sensitive applications where excellent performance and long-term stability are required. Integral temperature compensation is provided over a range of 0-50°C using laser-trimmed resistors. The differential signal generated by the pressure sensor is converted to equivalent 4-20mA retransmission signal in the desired calibration range, for long distance transmission. The 4-20mA signal is isolated from the DC power supply. The pressure transmitters DPX-3000 are available in absolute or differential pressure ranges from 0-1 to 0-300 psi.

Features:

• Built-in Vacuum and Pressure absolute / differential sensor.

• 4-20mA proportional output for each sensor.

• IP 65 ABS plastic enclosure.

• Lockable fixture for standard 4 mm PVC pipes.

• Operates on 18 to 36VDC.

• Measurement range of 0 to 300 PSI (differential or absolute)

Applications:

• Medical and Pharmaceutical test equipment.

• Altitude and Air speed measurement.

• Process control and Factory Automation.

• Leak Detection etc…

Libratherm offers AC / DC Signal Convertor cum Isolator (Model: ISM-10), designed in 35 mm. DIN Rail compatible modules. These modules accepts AC/DC input signal and provides optically / galvanically isolated output in the form of (4-20)mA or (0-5)V or (0-10)V proportional to the input signal. Both the input and output levels have their grounds optically / galvanically isolated. Thus the process signals received from the Transducers or transmitters or Sensors can be directly connected through ISM-10 to the PLC, DCS or to any other electronics in the process industry accepting such signals, without any signal loss or ground line interference. The ZERO and SPAN presets are accessible to the user for onsite calibration and matching.

These modules operate on 230 VAC or 110 VAC supply or 24VDC. The module with single input and multiple parallel outputs (Model ISM-10-X and ISM-12-X) can also be provided to meet the process control requirement requiring simultaneous change of 2 to 4 outputs proportional to the single input variation. These modules are rugged, reliable, field proven and economically priced.

New model ISM-12-2-X for two input and two/four output is also available for V to V, V to I, I to I or I to V conversion.

Libratherm offers these two models LCC-04 to convert the load cell input to equivalent 4-20 mA output. Both the models can accept either single or up to four load cells – internally looped for parallel connections to give resultant and proportional 4-20mA signal as the summation / average of all the connected load cells. Since (4-20)mA signal being less susceptible to electrical noise, it can be taken to the long distance over ordinary copper wires, which can be fed to the Digital Indicator, PLC, Computer or other host of interfacing devices in the control room.

The stable and sufficiently rated adjustable or fixed excitation voltage of 5 to 12VDC is generated internally to power the load cells. Internal ZERO and SPAN presets are available to tare the dead weight and also for onsite calibration of 4-20mA to improve the measurement range and resolution. The high input impendence instrumentation amplifier with ultra low drift gives stable output to maintain long term accuracy and stability of weight measurement in the batch weighing process industry. LCC-04 is available in IP65 field mount ABS enclosure and LCC-10 is available in DIN rail mount ABS enclosure. They operate on 230VAC +/-20% supply.

Libratherm offers these two models LCC-04 and LCC-10 to convert the load cell input to equivalent 4-20 mA output. Both the models can accept either single or up to four load cells – internally looped for parallel connections to give resultant and proportional 4-20mA signal as the summation / average of all the connected load cells. Since (4-20)mA signal being less susceptible to electrical noise, it can be taken to the long distance over ordinary copper wires, which can be fed to the Digital Indicator, PLC, Computer or other host of interfacing devices in the control room.

The stable and sufficiently rated adjustable or fixed excitation voltage of 5 to 12VDC is generated internally to power the load cells. Internal ZERO and SPAN presets are available to tare the dead weight and also for onsite calibration of 4-20mA to improve the measurement range and resolution. The high input impendence instrumentation amplifier with ultra low drift gives stable output to maintain long term accuracy and stability of weight measurement in the batch weighing process industry. LCC-04 is available in IP65 field mount ABS enclosure and LCC-10 is available in DIN rail mount ABS enclosure. They operate on 230VAC +/-20% supply.

Description:
Libratherm offers microcontroller based Signal Convertor cum Isolator (Model TSC-05) in 35 mm. DIN Rail compatible modules. This model accepts user selectable universal input from Thermocouple, RTDs, (4-20)mA DC current and Resistance signal and provides single or dual optically isolated output in the form of (4-20)mA or (0-5)V or (0-10)V, which is proportional and linearized to the input signal. The input signal is processed by 16-bit ADC and the same is indicated on 5 digit LED display. The display also allows user to select the input type. LED indications on the front - shows the status of selected input type.

The input and output signals have their grounds optically isolated. Thus the process signals received from the Transducers or transmitters or Sensors can be directly connected through TSC-05 to the PLC, DCS or to any other electronics in the process industry accepting such signals, without any signal loss or ground line interference. Front panel keyboard is provided for Input type selection and calibration. TSC-05 operates on 24VDC supply.

Features:

• Accepts universal DC signal inputs and provides single or dual optically isolated,
• Proportional and linearized analogue output.
• Bright red 7 segment LED display
• On site calibration and input selection facility-using front panel key board.
• Operates on 24VDC power supply.
• DIN rail mounting.

Libratherm offers AC / DC Signal Convertor cum Isolator (Model: ISM-10), designed in 35 mm. DIN Rail compatible modules. These modules accepts AC/DC input signal and provides optically / galvanically isolated output in the form of (4-20)mA or (0-5)V or (0-10)V proportional to the input signal. Both the input and output levels have their grounds optically / galvanically isolated. Thus the process signals received from the Transducers or transmitters or Sensors can be directly connected through ISM-10 to the PLC, DCS or to any other electronics in the process industry accepting such signals, without any signal loss or ground line interference. The ZERO and SPAN presets are accessible to the user for onsite calibration and matching.

These modules operate on 230 VAC or 110 VAC supply or 24VDC. The module with single input and multiple parallel outputs (Model ISM-10-X and ISM-12-X) can also be provided to meet the process control requirement requiring simultaneous change of 2 to 4 outputs proportional to the single input variation. These modules are rugged, reliable, field proven and economically priced.

New model ISM-12-2-X for two input and two/four output is also available for V to V, V to I, I to I or I to V conversion.

Features:

• Built-in differential Pressure sensor.
• 4-20mA or 0 to 10VDC proportional to DP range
• IP 65 ABS plastic enclosure.
• Lockable fixture for standard 4 mm PVC pipes.
• Operates on 18 to 36VDC.
• Max. Measurement range of 0 to 1000 Pascal

Applications:

• Medical and Pharmaceutical test equipment
• Altitude and Air speed measurement
• Process control and Factory Automation
• Air Humidifier / Dehumidifier
• Leak Detection etc…

Product Description:

Differential Pressure Transmitter model DPX-220 is designed using the temperature compensated, piezo -resistive silicon pressure sensor packaged in a dual-inline configuration and intended for cost sensitive applications where excellent performance and long-term stability are required. Integral temperature compensation is provided over a range of 0-50°C using laser-trimmed resistors. The differential signal generated by the pressure sensor is converted to equivalent 4-20mA/0-10VDC retransmission signal in the desired calibration range. The 4-20mA/0-10VDC signal is isolated from the DC power supply. The pressure transmitters DPX-220 is available in differential pressure ranges from 0-125 pascal and 0 to 500 pascal.

Vacuum / Pressure Transmitter model VPX-3000 and DPX-3000 are designed using the temperature compensated, piezo -resistive silicon pressure sensor packaged in a dual-inline configuration and intended for cost sensitive applications where excellent performance and long-term stability are required. Integral temperature compensation is provided over a range of 0-50°C using laser-trimmed resistors. The differential signal generated by the pressure sensor is converted to equivalent 4-20mA retransmission signal in the desired calibration range, for long distance transmission. The 4-20mA signal is isolated from the DC power supply. The pressure transmitters VPX-3000 and DPX-3000 are available in absolute or differential pressure ranges from 0-1 to 0-300 psi.

Features:

• Built-in Vacuum and Pressure absolute / differential sensor.

• 4-20mA proportional output for each sensor.

• IP 65 ABS plastic enclosure.

• Lockable fixture for standard 4 mm PVC pipes.

• Operates on 18 to 36VDC.

• Measurement range of 0 to 300 PSI (differential or absolute)

Applications:

• Medical and Pharmaceutical test equipment.

• Altitude and Air speed measurement.

• Process control and Factory Automation.

• Leak Detection etc…