Pantech Instruments

Flow Meter

Our domain expertise has enabled us to come up with Flow Meter. Owing to its features like easy-operation, low maintenance, reliable performance and longer service life, the entire range is widely appreciable among the customers. These products are manufactured as per the international quality standard. 

Natural Gas Flow Meter

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Approx. Rs 1,800 / UnitGet Latest Price

Product Details:

Model Name/Number845N
DisplayDigital
Accuracy+/-0.1% of span
BrandPantech
Power Supply24 V DC, 110 V AC, 50 Hz, +/- 10%, 230 V AC, 50 Hz, +/- 10%, 90-270 V AC - SMPS type
Inputs Flow4-20 mA / 0-20 mA DC
Inputs Pressure4-20 mA / 0-20 mA DC
Inputs Temperature4-20 mA DC / RTD Pt. 100-3 wire
Power Consumption6 VA max.
Humidity90% RH (non-condensing)
Transmitter Power3x24 V DC @ 40 mA
Dimensions96x96 / 72x144 / 144x144 mm

Pantech Instrument's Model 845N represents Flow Indicators / Totalizers / Controllers for flow applications related to Natural Gas  flow. These are majorly applicable in Orifice Type Flow Metering systems. The instrument is so designed to accept 3 inputs of Flow, Pressure and Temperature at a time. Based on these inputs, and other fed in parameters, the instrument calculates the Instantaneous Natural Gas Flow Rate to a resolution of 4.5 digits. These calculations totally comply with AGA3, Nx19 Norms and conditions. Totalized value is displayed through 8 digits red LED and this totalizer value is always protected against power failures through internal memory structures of microprocessor. Optionally the instrument is designed to give two contact relay outputs and a Retransmission Isolated Signal on Instantaneous Flow Rate. All configurations, calibrations output fine tunings, parameter feed ins etc. can be performed by front four keys only without opening the instrument. In the core of all the functions lies the latest and highly proven microprocessor based chipsets. The high end softwares ensure the most user friendly interactions by the user. The instrument incorporates low drift operational amplifiers and industrial grade components for long trouble free operation. Burn in of each module ensures long trouble free operations.


Applications:

  • Used for the natural gas flow metering based on Aga-3 Nx19 norms of orifice flow metering systems
  • The high accurate calculations and heavy algorithms fed in the instrument thus allows it to be used for custodial transfer of natural gas applications
  • Accepts three inputs – Flow (Ma), pressure (Ma), temp (Ma/ Rtd Pt.100)
  • The user is required to fed in – Dp transmitter range in mmwc, Pressure range in Kg/Cm2, Flow rate for retransmission output, orifice diameter in mm, pipe inside diameter in Mm, specific gravity, mole % Co2 gas, mole % N2 Gas, Dp threshold in %
  • Response time in microseconds
  • Automatic decimal selection in flow rate calculations
  • To give the highest possible Resolutions in the flow rate
  • Calculates flow rates in Nm3/Hr. or Sm3/Hr – as selected

 

Pre-requisite data from the client:

  • Max./ Min./ Operating flow rates of the system
  • Max./ Min./ operating pressure in line
  • Operating temperature
  • Line size

Additional Information:

Item Code: 7632

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Steam Flow Meter

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Approx. Rs 3,550 / UnitGet Latest Price

Product Details:

Model Name/Number845S
BrandPantech
Power Supply24 V DC, 110 V AC, 50 Hz, +/- 10%, 230 V AC, 50 Hz, +/- 10%, 90-270 V AC - SMPS type
Accuracy+/-0.1% of span
Power Consumption6 VA max.
Ambient Temperature0 - 50 C
Storage Temperature0 - 70 C
Humidity90% RH (non-condensing)
MountingPanel / Wall / Field
Dimensions96x96 / 72x144 / 144x144 mm
Transmitter Power3x24 V DC @ 40 mA
Input Flow4-20mA / 0-20 mA DC / other linear type
Input Pressure4-20 mA / 0-20 mA DC / other linear type

Pantech Instrument's Model 845S represents Flow Indicators /Totalizers / Controllers for mass flow applications related to Steams flow. The instrument is so designed to accept 3 inputs of Flow, Pressure and Temperature at a time. Based on these inputs, and high end algorithms of Steam Tables fed in the chip, the instrument calculates Mass Instantaneous Flow Rate to a resolution of 4/4.5 digits. Totalized value is displayed through 8 digits red LED and this totalizer value is always protected against power failures through internal memory structures of microprocessor. Optionally the instrument is designed to give two contact relay outputs and a Retransmission Isolated Signal on Instantaneous Flow Rate. Serial communication outputs for computer system interfaces are also given optionally. All configurations, calibrations and output fine tunings etc. can be performed by front four keys only without opening the instrument. In the core of all the functions lies the latest and highly proven microprocessor based chipsets. The high end softwares ensure the most user friendly interactions by the user. The instrument incorporates low drift operational amplifiers and industrial grade components for long trouble free operation. Burn in of each module ensures long trouble free operations.

 

Applications:

  • Used for the mass flow calculation of steams particularly
  • Accepts upto three inputs – flow (Ma), pressure (Ma), temp (Ma/ Rtd Pt.100/ Thcpl)
  • Gives efficient pressure and temp. compensations for mass flow calculations
  • Refers hi end algorithms along with steam tables data fed in the microprocessor chip
  • The instrument can be configured to work on: saturated or superheated or both
  • The user is allowed to feed in – max pressure range (In Bars), operating pressure in bar, operating temp. in deg. C, flow range
  • Calculates flow rates in Nm3/hr. or Sm3/hr as selected

 

Pre-requisite data from the client:

  • Max./ Min./ operating flow rates of the system
  • Max./ Min./ operating Pressure in Line
  • Line size
  • Metering principle – orifice / vortex

Additional Information:

Item Code: SFM-7632

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Thermal Dispersion Type Flow Metering System

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Approx. Rs 9,000 / UnitGet Latest Price

Product Details:

Model Name/Number845T
BrandPantech
Flow Range0 to 600 cubic meter per hour
Accuracy+/-1% of the range
DisplayOn LCD panel of display size - 20 Characters * 4 lines
Power24 V DC, 300 mA regulated type
EnclosureSheet Metal, Powder coated, IP65 level
Dimensions144x144x110 mm ( Panel mounted )
Continuous DisplayDate, Time, 4 digit Flow rate, 8 digit Totalized

Pantech Instruments, an eminent manufacturer of process control instruments since last 15 years, has developed this type of meter by their indigenous R&D efforts. The flow meter is definitely a state of technology product, totally in line with all the industrial and gas standards. 

Principle of operation:
  • The thermal sensor uses the principle of heat dissipation
  • A heated sensor is inserted into the stream of gas flow
  • The cooling effect of the gas is measured, transducer and interpreted as flow
  • The cooling effect is a direct function of the heat transfer that takes place due to the flow of gas
  • The heat transfer in turn is a direct function of the velocity as well as density of the process gas
  • Hence variations in temperature and pressure in the process gas are automatically compensated
  • For all practical purposes the output signal obtained is pressure and temperature compensated “mass flow” signal
  • Thus the compensated flow independent of pressure and temperature variation is indicated without need for any separate transducers for the same

The user friendly features and main advantages of this flow meter are:
  • In areas of flow metering, where the process gas pressures are very low, conventional flow metering techniques present a no. of limitations. In case of Thermal Mass Flow meter, upstream pressure required is very low because pressure drop across the sensor is negligible. Hence it works in place where Orifice/Rotameter type flow meters have failed. For this reason it is ideally suitable for very low height gravity feeds, reflux lines, condensers/accumulator systems etc
  • There are no moving parts in the system. So choking, jamming effect are not observed even after very long run of the meter. There is no need to carry out periodic cleaning unless the fluid is very viscous or dirty
  • There is no need to measure variations in pressure and temp. because the basic principle allows us to get a compensated output for both the readings. This substantially reduces the total cost of the installed system as well as the maintenance, troubleshooting time, spares inventory and frequent calibrations
  • Flow ranges available are very large, typically 1:100 and more, as compared to 1:3 to 1:10 by orifice type flow meters and rotameters
  • As per recent requirements, hazardous service installations should have minimum possible threaded/flange joints. Unlike the Orifice type (6-8 joints) and rotameter type (2 joints), this requires only one joint, either threaded or flanged. This makes it a very safe and desirable choice
 
Sensor Operation:
  • The sensor has a reference element, measuring service temperature. The other element is heated electronically. The heat carried away by the fluid depends on the molecular flow across it. The electronic control circuit measures and controls so that there is a constant difference between the fluid temperature and the temperature of the heated element. The flow rate is displayed in unit of mass per time as per the calculations now. The totaled mass flow per desired elapsed time is also displayed hence.
 
Sensor Installation:
  • The sensor has a 1.5” flanged connection. It is to be fixed on the pipe line nozzle horizontally with heated element (indicated by a punched depression on the flange) on top and cold. The sensor has six terminals. They are to be connected to the flow indicator cum totalizer.

Additional Information:

Item Code: 845T

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