Parshvi Technology (India) Private Limited

Intended use:

Membrane level indicator with Stainless Steel membrane to be used to control normally the minimum level of bulk solids in silos or vessels.

These controllers consist of a switch actuated by a membrane and it is recommended for dusty and powdery, granulated and grainy bulk goods like dust, flour, grain, sand, plastic, etc. with an easy flow and a bulk density from 0.3 to 2.5 t/m³.

Function:
The membrane must to be exposed to the material.The movement of the switch is the result of the pressure exerted by the incoming bulk material against the membrane which forces the membrane to move backwards, reversing the position of the switch and the signal is used for example to control the transport system in the silo.

The models "A-100", "AD", "SR" y "CD2M" and the models with S.S. membrane have a regulation system by a spring that allows the adjustment of the sensitivity. Tightening the regulation nut to reduce the sensitivity and increase the strain of the material to activate the microswitch. Clockwise insensitive.

The models are adjusted at their maximum sensitivity. It is necessary to ensure the proper pressure to the membrane that returns the membrane when there is no product covering it.

Mechanical connection:
Drill holes in the silo or vessel and mount the indicator using screws, rods, fasteners or nuts M6 making sure of the easy flow of the material and ensure that the product leaves the membrane without product on it.

Working Principle

Electronics of LFV12 excites the piezo-electric-crystals inside the tuning fork, which makes the fork tines vibrate at their natural resonance frequency in free air.

When the fork tines are immersed in liquid, the frequency of fork vibration falls due to the density of liquid.

This change in frequency is detected by electronic circuit.
Liquid presence is thus detected.

Features

 

• Compact size.
• Universal industrial power supply (15 to 80 VDC & 15 to 260 VAC).
• Low power consumption.
• No calibration required.
• Various customized process connections like Threaded/Flanged/TC etc starting form 1/2″.
• External test option using magnet test key.

Applications

• All liquids from free-flowing to viscosity up-to 10,000cP.
• Suitable for side as well as top mounting.
• Minimum and maximum fail safe field selectable.
• Flow/No-Flow detection in pipe-lines.
• Process temperature max 150 ºC.
• Process pressure max. 15 bar.

Typical Mounting

Applications:

• For free-flow liquids with liquids viscosity up-to 10,000cP.
• Suitable for side as well as top mounting.
• Minimum and maximum fail safe field selectable.
• Flow/no-flow detection in pipe-lines.
• PTFE/PFA/ECTFE coatings for corrosive liquids.
• Process temperature max 200 ºC.
• Process pressure max. 15 bar.

Features:

• Compact size.
• Universal industrial power supply (15 to 80 VDC & 15 to 260 VAC).
• Low power consumption.
• No calibration required.
• Customized process connections like Threaded/Flanged/Hygienic etc starting form 1/2″.
• Various o/p available like DC PNP/NPN/ Two wire DC 8/16, Two wire AC and NAMUR.
• External test option using magnet test key.
• Remote electronics version available on request.
• Exd version available-suitable for gas group IIC, T6 as per IEC 60079-1-2007 & IEC 600529-2001.

We are engaged in offering Trumen Vibrating Fork Point Level Switch-LSV that are created with use of industry grade components under the guidance of our learned technicians and advanced technology. This is compact in size and can be used with universal industrial supply. This does not require any precise calibration and consumes less powers and cab be availed with remote electronic version. This can be availed at leading market rates.

Features:

• Compact size.
• Universal industrial power supply. 15 to 80 VDC & 15 to 260 VAC).
• Low power consumption.
• No calibration required.
• Various customized process connections. Starting from 1″ threaded size.
• Settable switching delay as a standard feature.
• Remote electronics version available on request.
• Exd version available-suitable for Gas Group IIC, T6 as per IEC 60079-1-2007 & IEC 600529-2001.

Application:

• Free flowing powders and granules (size max. 10mm).
• Suitable for side as well as top mounting.
• PTFE/PFA/ECTFE coatings for corrosive solids.
• Minimum and maximum fail safe field selectable.
• Process temperature max 250 ºC.
• Process pressure max. 20 bar.

Application:

• Suitable for free flowing powders and granules.
• Suitable for side as well as top mounting.
• Process temperature max 150 ºC.
• Process pressure max. 3 bar.
• Various sensing fins option available for different bulk density material.

Features:

• Compact size.
• Industrial power supply 230 VAC/110 VAC.
• Low power consumption.
• No calibration required.
• Durable construction.
• Spring loaded blades.
• Customized process connections.

Working Principle: 
It operates on the basic buoyancy principle .It uses float that glides on the surface of liquids. This level switch consists of – Terminal Enclosure, Float Stem with Hermetically sealed Reed Switches and Float with magnets assembled inside. As the float rises or falls with liquid level, the internal magnet moves in or out of the field of the switch resulting in its opening or closing. A non-magnetic barrier tube containing the reed switch isolates it from the process. These type level controls are available for controlling level at up to four differentpreset locations and can virtually be made of any length. This switch is highly effective and cost shedding and also finds use in a wide range of industries.

Application:Fuel oil tank control, Boiler feed water drum control, cooling tower lubrication/cooling/filtration systems, paint shops, water/wastewater treatment etc.

Features:

• Reliable & low cost
• PC/PLC/DCS, Alarm Annunciator configurable
• Available with External Chamber

Working Principle

Electronics of LFV12 excites the piezo-electric-crystals inside the tuning fork, which makes the fork tines vibrate at their natural resonance frequency in free air.

When the fork tines are immersed in liquid, the frequency of fork vibration falls due to the density of liquid.

This change in frequency is detected by electronic circuit.
Liquid presence is thus detected.

Features

 

• Compact size.
• Universal industrial power supply (15 to 80 VDC & 15 to 260 VAC).
• Low power consumption.
• No calibration required.
• Various customized process connections like Threaded/Flanged/TC etc starting form 1/2″.
• External test option using magnet test key.

Applications

• All liquids from free-flowing to viscosity up-to 10,000cP.
• Suitable for side as well as top mounting.
• Minimum and maximum fail safe field selectable.
• Flow/No-Flow detection in pipe-lines.
• Process temperature max 150 ºC.
• Process pressure max. 15 bar.

Typical Mounting

Intended use:

Versatile membrane level indicator. Is to be used to control the maximum or minimum level of bulk solids in silos or vessels. These controllers consist of a switch actuated by a membrane and it is recommended for dusty and powdery, granulated and grainy bulk goods like dust, flour, grain, sand, plastic, etc. with an easy flow and a bulk density from 0.3 to 2.5 t/m³.

Function:

The membrane must to be exposed to the material. The movement of the switch is the result of the pressure exerted by the incoming bulk material against the membrane which forces the membrane to move backwards, reversing the position of the switch and the signal is used for example to control the transport system in the silo.

The models “A-100”, “AD”, “SR” y “CD2M” and the models with S.S. membrane have a regulation system by a spring that allows the adjustment of the sensitivity. Tightening the regulation nut to reduce the sensitivity and increase the strain of the material to activate the microswitch. Clockwise insensitive.

The models are adjusted at their maximum sensitivity. It is necessary to ensure the proper pressure to the membrane that returns the membrane when there is no product covering it.

 

Mechanical connection:

Drill holes in the silo or vessel and mount the indicator using screws, rods, fasteners or nuts M6 making sure of the easy flow of the material and ensure that the product leaves the membrane without product on it.

Applications:

• Suitable for non-sticky liquids and solids.
• Suitable for side as well as top mounting.
• Single point/multipoint/pump control switching on single probe.
• Minimum and maximum fail safe field selectable.
• Process temperature max 600 ºC (ceramic insulation).
• Process pressure max. 15 bar.
• PTFE coated for corrosive and conductive liquids.

Features:

• Compact size.
• Universal industrial power supply (15 to 80 VDC & 15 to 260 VAC).
• Low power consumption.
• Easy dip switch calibration.
• Customized process connections like Threaded/Flanged/Hygienic etc.
• Remote electronics version available on request.
• Exd version available-suitable for gas group IIC, T6 as per IEC 60079-1-2007 & IEC 600529-2001.

Additional Information:

• Item Code: LMC

Applications:

• Suitable for all sticky/non-sticky bulk solids & liquids
• Suitable for side as well as top mounting
• Process temperature max 600 ºC (ceramic insulation)
• Process pressure max. 15 bar
• Minimum and maximum fail safe field selectable

Features:

• Compact size
• Universal industrial power supply (12 to 80 VDC & 12 to 265 VAC)
• Low power consumption
• Easy calibration
• Active shield compensation against material build-up
• Static charge safe for fly-ash, acids, plastic & other.Applications susceptible to static charge/electricity
• Customized process connection like Threaded/Flanged etc

Working Principle

Vibrating rod is a single element tunned mechanical element-type level sensing device.

Electronics of LSV-R excites the piezo-electric-crystals inside the tuning rod, which makes the rod vibrate at it’s natural resonance frequency in free air.

When Material touches the rod, vibration stops as resonance gets disturbed.

Amplitudes of vibration are above threshold when rod is free to vibrate.

Amplitudes of vibration, as sensed by the electronics falls below the threshold, Materials presence is thus detected by observing the amplitude of vibration.

Features

• Compact size.
• Universal industrial power supply.(15 to 80 VDC & 15 to 260 VAC).
• Low power consumption.
• No calibration required.
• Customized process connections like Threaded/Flanged/Hygienic etc.
• Settable switching delay as a standard feature.
• Remote electronics version available on request.
• Exd version available-suitable for gas group IIC, T6 as per IEC 60079-1-2007 & IEC 600529-2001.

Applications

• Free flowing powders and granules.
• Suitable for side as well as top mounting.
• Minimum and maximum fail safe field selectable.
• Process temperature max 200 ºC.
• Process pressure max. 15 bar.

Typical Mounting

Applications:

• Suitable for conductive liquids like water.
• Top mounting & side mounting options.
• Minimum and maximum fail safe field selectable.
• Single point/multipoint/pump-control switching.
• Process temperature max 200 ºC.
• Process pressure max. 3 bar.

Features:

• Compact size.
• Integral version with universal power supply (15 to 60 VDC & 15 to 260 VAC).
• Low power consumption.
• No calibration required.
• Various customized process connections like Threaded/Flanged.
• Remote electronics version available on request.
• Exd version available-suitable for gas group IIC, T6 as per IEC 60079-1-2007 & IEC 600529-2001.