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

Micro-Controller Based 2 To 4 Set Points Temperature & Process Controllers
We are way forward in manufacturing and exporting an assortment of Micro-Controller Based 2 To 4 Set Points Temperature & Process Controller. We use sophisticated technology and machinery in the process of manufacturing. With its sound technical features such as sensor input/output, it ensures accuracy in measurement of temperature.


Leading manufacturer of electrical devices, electronic process control equipment, digital process control equipment, programmable logic micro controllers, temperature controllers, programmable logic controllers and programmable logic nano controllers.

DC Power Supply For Sensor / Loop Powered Transmitter LPS-24

DC Power Supply For Sensor / Loop Powered Transmitter LPS-24
  • DC Power Supply For Sensor / Loop Powered Transmitter LPS-24
  • DC Power Supply For Sensor / Loop Powered Transmitter LPS-24
  • DC Power Supply For Sensor / Loop Powered Transmitter LPS-24
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Approx. Price: Rs 4,500 / Number

Product Details:

Minimum Order Quantity1 Number
BrandLIBRATHERM
ModelLPS-24
Output Voltage24VDC @ max.300mA, (7.5watt max)
Input Supply90-240VAC, 50/60Hz
TerminalsScrew-on type plug and socket for Input and Output termination.
Size or Mounting90 h x 60 w x 35 d mm. / Centre to Centre 72 mm using 2 x M3 screws.
Power ON IndicationRed LED turns ON and visible from front.
EnclosureSheet metal MS powder coated

Features:
  • Latest SMPS design
  • Stable and regulated 24VDC
  • Protected against Industrial RFI/EMI interferences. 
  • Wide input supply of 90 to 240VAC
  • Built in overload protection.

Description:

Libratherm offers industrially proven and time tested 24VDC switch mode power supply to meet various industrial requirements. It is compact, sufficienly rated useful power source to power extenal devices like 24vdc operated solenoid valves, Sensors, 2 or 4 wire process transmitters like Pressure transmitters, temperature transmitters, flow transmitters. 24vdc operated signal isolators/convertors/instruments/actuator valves/lamps etc. To generate 24VDC logic pulse or level as Digital input to PLC, HMI, thyristor switch module or other such devices. This economical and low rating power supply often serves most of the applications where high power / bigger size 24VDC power supply is not required and hence user will have advantage of saving on cost and panel space.
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Additional Information:

  • Item Code: LPS-24
  • Pay Mode Terms: T/T (Bank Transfer)
  • Port of Dispatch: Mumbai
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Three Phase Heater Fail / Over Load Detection Module HFM-3

Three Phase Heater Fail / Over Load Detection Module HFM-3
  • Three Phase Heater Fail / Over Load Detection Module HFM-3
  • Three Phase Heater Fail / Over Load Detection Module HFM-3
  • Three Phase Heater Fail / Over Load Detection Module HFM-3
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Approx. Price: Rs 3,500 / Number

Product Details:

Minimum Order Quantity1 Number
ApplicationHFM-3-OVL (for over load detection) or HFM-3-OPL (for open load detection)
BrandLIBRATHERM
Model NumberHFM-3
Size110 x 110 x 50 mm
Available ConfigurationThree phase single heating zone or single phase 3 independent heating zone.
Reference SignalTo be derived from the external temperature controller in the form of 4-20mA/0-5V/DC pulse/Potential
Current FeedbackMax. 20A for each heater through built in CT or using external CT of 5A ratio.
Fault OutputRelay changeover contacts - 3 nos. of NO-C-NC contacts for 3 sets of heater loads, with LED indicati
Load TypeSuitable for resistive heating load single phase x 3 or three phase x 1
Aux Supply Voltage230VAC +/-10%, 50/60Hz @ max.4A
MountingDIN rail or stud mount.

DESCRIPTION:

In the heating process, it is very important to ensure that the electrical heaters remain healthy, however over a period of time, practically heaters do have tendency to either go open due to break in the heating element or two close elements likely to get short with each other and comes in parallel thereby effective resistance drops and tend to draw current more than the normal rated current. When the heater goes open, it reduces the heating capacity and increases the burden on other healthy heating elements to achieve desired set temperature. When the heater shorts the current drawn increases and may lead to burning of contacts and connecting leads and wires and it may lead to fire hazard. To safeguard the process operation against such heater behavior, it is indispensable to monitor the status of heaters on continuous basis. The only way to detect the heater status is to monitor the current flowing through it.

HFM-3 is designed to detect the failure (open or short/over load) of any of the 3 independent or 3 phase heater load. Heater current per phase of max.20A can be allowed to pass through the individual in-built CTs (for higher load current external CT with 5A CT ratio can be used). User can pass the 3 individual load cable of max. 4 square mm through each of the 3 nos. of built-in CT.  The heater failure either open or short circuiting is detected by comparing Reference input command and the maximum current through each heater under normal condition with the desired set current, adjustable using on card presets marked P1, P2 and P3. When the current through the heater exceeds the set level of current, the respective on card relay energizes and respective LED will glow. This condition will remain true till the current through the heater falls below the set level of current and then relay will de-energize and LED will go off. HFM-3 works on single phase AC supply of 230VAC+/10% @ max. 4VA. It can be mounted on 35mm C rail or G rail.  While placing the order, user may specify the requirement type HFM-3-OVL (for over load detection) or HFM-3-OPL (for open load detection), based on the likelihood of heater fail condition, since, HFM-3 can detect any one condition at a time.
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Additional Information:

  • Item Code: HFM-3
  • Pay Mode Terms: T/T (Bank Transfer)
  • Port of Dispatch: Mumbai
  • Production Capacity: 1
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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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