『Fiber Optic Flow Meter Technology: Safe Flow Measurement in High-Radiation and EMI Environments』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)
Fiber Optic Flow Meter Technology: Safe Flow Measurement in High-Radiation and EMI Environments
Quick Answer: Fiber optic flow meters use light signals instead of electrical pulses. They survive radiation doses that destroy standard magnetic or Coriolis meters. For high-radiation and EMI zones, choose a fiber optic flow meter with a remote electronics unit and a stainless steel sensor body. Send us your pressure in bar, temperature in degrees Celsius, pipe size in DN, and flow range for a quote.
What High-Radiation and EMI Do to Standard Flow Meters
Standard flow meters depend on coils, electrodes, or strain gauges. Gamma radiation damages semiconductor junctions. EMI from variable frequency drives or motor starters creates false pulses. We have seen this on customer sites many times. A chemical plant in Saudi Arabia replaced three electromagnetic flow meters in one year because the sensors sat near an electron beam source. The readings drifted, then failed. That is the problem fiber optic flow meters solve.
How Fiber Optic Flow Meter Technology Works
Fiber optic flow meters measure flow with light. A small turbine or a bluff body creates a frequency in the optical signal. The sensor head has no silicon chips. No coil. No electrode. The signal travels through a fiber cable to a remote transmitter. The transmitter can sit 500 meters away in a safe room. Because the sensing head has no electronics, radiation does not degrade the signal. EMI does not couple into the light path. That is the core advantage.
Key Specs for High-Radiation and EMI Applications
When you specify fiber optic flow meters for radiation areas, check these details. Sensor body materials include 316L stainless steel, Hastelloy C22, or PTFE lining for aggressive fluids. Process connection sizes go from DN15 up to DN200. Temperature range is from minus 40 degrees Celsius to 150 degrees Celsius for standard models. High temperature versions reach 250 degrees Celsius. Accuracy can be plus or minus 0.5 percent of reading. Output options include 4-20 mA HART, pulse, and Modbus RTU. Radiation tolerance depends on the fiber type and sensor design. Some units handle 10 kGy total dose without drift. We recommend a remote transmitter with a minimum 100 meter fiber cable for hot zones. For hazardous areas, specify ATEX Zone 1 or IECEx certification. The display can show flow rate in kg/h, m3/h, or l/min. Pressure rating up to PN40 or ANSI Class 300 covers most process lines. Silver Instruments supplies the fiber optic flow meter with a factory calibration certificate traceable to ISO 17025.
Recommended Models for High Radiation and EMI
Silver Instruments offers fiber optic flow meters in several configurations. The SIFO-100 series works for clean liquids and gases in radiation ch
Installation Tips for Harsh Plants
Place the sensor in the pipe where flow is fully developed. Keep the fiber optic cable away from high voltage trays. Use metal conduit for the fiber cable in EMI zones. Ground the remote transmitter at one point only. This avoids ground loops. Do not bend the fiber cable tighter than the minimum bend radius, usually 30 mm for standard cables. In high radiation areas, use radiation resistant fiber with a polyimide coating. Silver Instruments preps the cable ends at the factory. Most engineers skip this part but it saves hours on site. We test each unit with a reference flow rig before shipping. In practice, this means fewer spare sensors on the shelf.
Frequently Asked Questions
Can fiber optic flow meters measure conductive and non conductive liquids?
Yes. The optical sensing principle does not depend on electrical conductivity. You can measure deionized water, solvents, acids, or hydrocarbons.
What is the maximum radiation dose the sensor can handle?
Standard models handle 10 kGy total absorbed dose. Custom versions with radiation hardened fiber can handle up to 100 kGy. Send us your expected dose rate and total dose.
Does the remote transmitter need special shielding?
No. The transmitter is a standard industrial unit. Place it in a non hazardous room up to 500 meters from the sensor.
Can the fiber optic flow meter handle gas flow?
Yes, the SIFO-100 series works for gas flow from 0.5 m/s to 30 m/s. Specify the gas composition and operating pressure for best accuracy.
What signal outputs are available for DCS or SCADA integration?
You can order 4-20 mA HART, pulse, or Modbus RTU. We also provide a frequency output divide function for old PLC systems.
For a fiber optic flow meter quote, contact Silver Automation Instruments. Tel: +86-25-68650347. Whatsapp: +86-25-52155837. WeChat: +86 15365082610. Send us your pressure in bar, temperature in degrees Celsius, pipe size in DN, flow range, and radiation dose level. We will recommend a model with the right fiber length and certification.
Hot Product
Related AD
