Libratherm Instruments Private Limited
Libratherm Instruments Private Limited
Dahisar East, Mumbai, Maharashtra

Temperature Process Indicator Controller

Temperature Process Indicator Controller

pH Controller

pH Controller
  • pH Controller
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Approx. Price: Rs 12,500 / NumberGet Latest Price

Product Details:

Minimum Order Quantity1 Number
Input or Output ConnectionsUsing suitable Industrial grade plug / socket
Single Control Output4-20mA / (0-200) VDC to be fed to the dosing valve/pump
Key boardMembrane key board is provided for programming the Set values, alarm values
EnclosureIP65 (200 x 120 x 90) with suitable plastic mounting clamps
Dual Control Output2 x 4-20mA / (0-200) VDC to be fed to the two independent dosing valves/pumps.
Retransmission Output4-20mA proportional to 0.00 to 14.00 PH for remote indication.
Usage/ApplicationAcid/Base dosing pumps operate
Control ActionSingle or Dual loop PID. 0 to 100% control output corresponds to (4-20)mA or 0 to 100 pulses/minute.
Input SensorExternal input of +/-420mV or 4-20mA sensor/transmitter
AccuracyAbsolute to the accuracy of input signal.
Display Range0.00 to 14.00pH

Libratherm offer Digital PH controller which is designed using high speed 8-bit microcontroller and most stable and reliable electronic components housed in IP65 plastic enclosure and offers features which best suits standard PH control application. PHC-3000 accepts input either directly from PH electrode or from external PH transmitter in the form of 4-20mA signal. The Ph value is indicated on the bright red 1” LED display in the range of 0.00 to 14.00pH. The control outputs are available in the form of single/dual (4-20)mA/0-10V or 200VDC pulse to directly operate the Acid/Base dosing pumps. Additional (4-20)mA/0-10V retransmission output proportional to PH value is available for remote indication or interface to external device.

Additional Information:

  • Item Code: PHC-3000
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Temperature Process Indicator

Temperature Process Indicator
  • Temperature Process Indicator
Get Best Quote
Approx. Price: Rs 2,500 / UnitGet Latest Price

Product Details:

Minimum Order Quantity1 Unit
Ouput4-20 mA
Size96 x 96 x 75 mm

Libratherm offers high quality and low-cost microcontroller-based Temperature/Process Indicators. Model DTI-902-U accepts user selectable input from J, K type thermocouple or RTD (Pt-100) or (4-20)mA signal. The user can select one of the 4 different types of input using front panel keyboard. Whereas, Model DTI-902-F accepts user required any other fixed type of thermocouple, RTD or process input. The indicating accuracy of 1oC / 0.1 oC is achieved by software linearization technique. DTI-902 also offers 4-20mA retransmission output which is linearized and proportional to the selected input and the specified range and user have a facility to scale this output to the required temperature range. The indicator works on 110/230VAC or on the 12/24VDC power supply or vehicle battery.


  • Latest and high-speed microcontroller based design
  • Highly accurate and sturdy in operation.
  • Elegant looks, Very easy to operate.


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Kamlesh Panchal (Managing Director)
No. 401-403, Diamond Industrial Estate, Ketki Pada Road
Dahisar East, Mumbai- 400068, Maharashtra, India

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