Manufacturer, Exporter & Supplier of Process Control Instruments, Systems And Flameproof Electrical Equipments

Crystal Vision, since its inception in 2007, has delivered several high quality products to the industry. The company provides ONE STOP SOLUTION to all needs of Process Data Acquisition & Flameproof Electrical Equipments

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Features :
Size 15NB to 300NB
Type of Output 4 to 20 mA DC, Isolated
Calibration Range As per requirement (Factory Calibrated)
Accuracy ±0.5% F.S.
Linearity ±0.5%
Repeatability ±1%
Process Temperature 150oC max.
Process Pressure 10 kg/cm2 max.
Material of construction Lining - Neoprene / Rubber. PTFE (Teflon)
Enclosure Protection WP to IP-66 & FLP for Gas Groups IIA & IIB.
Flange MS / SS
Electrode SS 316
Body MS


MagFlow 6410 (Full Bore Type)

Crystal Series 6400 is a new range of Bipolar Pulsed DC Full Bore Type Electromagnetic Flowmeters. It is suitable for pipes with diameters of 10 mm to 600 mm. They are based on Faraday’s law of Electromagnetic Induction. The meter features flanged construction and is available with choice of Liner and Electrode materials. Series 6400 has excellent accuracy and flow rangeability. The meter is suitable for use on wide range of corrosive and aggressive range of conductive liquids.

Salient Features
• Based on Faraday’s law of Electromagnetic Induction.
• Suitable for pipe sizes of diameters 10 mm to 600 mm
• Coil Assembly in hermetically sealed Welded construction
• Choice of PTFE / Neoprene Rubber / Polyurethane liners
• Integral or Remote Transmitter
• Field interchangable electronics
• Optional LED display for Flow Rate or Totaliser indication in Engineering Units
• No pressure loss
• High linerarity due to characteristic magnetic field
• Absolute Zero stability and noise elimination
• Measurement independent of liquid properties

Chemical, Petrochemical Drug Industries Steel Industries
Process Industries Sugar Industries Mining Industries
Fertilizer Industries Beverage Industries Dredging Industries
Pharmaceutical Industry Paper and Pulp Industries Water and Waste-Water Management
Food Industry Aluminum Industries And many others


Electromagnetic Flowmeters are based on Faraday’s law of Electromagnetic Induction.
In a Electromagnetic Flowmeter, magnetic field is generated by a set of coils. As the conductive liquid passes through the electromagnetic field, an electric voltage is induced in the liquid, which is directly proportional to its velocity. This induced voltage is perpendicular to both the liquid flow direction and the electromagnetic field direction. The voltage sensed by the electrodes is further processed by the transmitter to give standardised output signal or displayed in appropriate Engineering Units on LED Display.
The flux density of the electromagnetic field in a given Flowmeter and the distance between the electrodes are constant, therefore, the induced voltage is only a function of liquid velocity.

The induced voltage is not affected by the physical properties of liquid like temperature, viscosity, pressure, density and conductivity, as long as conductivity of the measure liquid is above minimum threshold level. For reliable measurement the pipe must be completely full of liquid.
The electromagnetic field coil assembly is excited by pulsed DC technique, which eliminates the interfering noise and provides automatic zero correction.

Suitable for Pipe Sizes DN 10 to DN 600
Media Conductivity (Min.) 10 μS/cm (Consult factory for 5 μS/cm)
Media Pressure PN 40 upto DN 80, PN 16 upto DN 200, PN 10 upto DN 600
Media Temperature (PTFE) 0o - 180o C with Remote transmitter
0o - 120o C with Integral transmitter
0o - 90o C max for other liners
Ambient Temperature Range 0o - 50o C
Materials :  
Pipe SS 316 (Non - magnetic )
Liner PTFE / Neoprene / Polyurethane
Electrode SS / Hastelloy C / Ta / Ti / Pt
End Connections / Flanges Carbon Steel / SS 304 / SS 316 / SS 316L
Coil Housing Carbon Steel / SS, Epoxy painted
Transmitter Cast Aluminium (LM6), Epoxy painted
Flange / End Connection Std. DIN / ANSI / BS / SMS / TRI-CLAMP
Power Supply 110 / 240V AC ± 15%, 50Hz
Power Consumption 20 VA
Cable Gland Entry 1/2" NPT (F)
Analog Output (Isolated) 4-20 mA DC / 0-20 mA DC
Pulsed Output (Optional) Low Pulsed Rate Output 10 to 36000 pulses per hour
  • Output to drive directly external electromagnetic counter of 12/24V DC @ 200 mA capacity OR
  • Open Collector Output , High Pulse Rate Output, 0.5 KHz/1 KHz/10KHz/(Open Collector Output)
Communication Port (Optional) RS - 232 / RS - 485 MODBUS RTU Protocol
Maximum Load Resistance 1000 Ω
Response Time 5 seconds
Flow Velocity Range 0.3 to 10 m/s
Ingress Protection IP - 65 (IP - 68 on request)
LED Display 4 Digit Indication for Flow Rate and 8 Digit Indication for Totaliser Programming from Front Keyboard for Engineering Units
Accuracy ± 0.5% of measured value (calibrated) at reference conditions
For Flow between 20 to 100% ± 1% of measured value (normal)
For Flow between 0 to 20% Refer Error Diagram below
Reference Conditions  
Power Supply Nominal
Ambient Temperature 25o C + 2o C
Load Resistance 500 Ω
Repeatability ± 0.2% of span
Effect of Ambient Temperature Less than 0.2% per 1o C
Effect of Power Supply Less than 0.1% per 10% Voltage variation
Effect of Load Resistance Less than 0.1% of span