frac turbine flow meters and mag meters
TRANSCRIPT
Frac Turbine Flow Meters and Mag Meters
David AakreTechnologist
Turbine Flow Meters Used for Suction and Discharge Rate on Blenders
Cross Section of Turbine Flow Meter
Nu-Flo Nominal Calibration Factors
Each Meter Or Rebuild Kit Comes With a Meter Calibration Number
Turbine Flow Meter• Calibration Factor should come with meter or rebuild kit and should be
attached to meter.• Nominal Calibration Values can be used for meters as a reference point
if calibration number is missing such as 3 pulses/ gal for a 8 inch turbine flow meter.
• For low flow rates 15 Barrels a minute or less a 4 inch meter would be better to use than a 8 inch meter.
• Turbine flow meters wear out and become less efficient but can be rebuilt.
• Mag Pick Up Sensors are used to measure pulses.• Arrow on Meter shows which direction to install.• Software measuring Rate usually uses calibration number from meter.
Electro-Magnetic Flow Meters Used for Suction and Discharge Rate
Endress HauserRosemount Mag meter
Cross Section of a Mag Meter
Endress Hauser Flow Meters
Rosemount Flow Meter
Need Flow Tube Tag Information to Program Transmitter.
Mag Meter Set Up• Rosemount mag meters use the flow tube tag information to program the
transmitter.• Follow company guide lines on set up because each company has their specific
programing instructions to match their software. Accufrac set up is different than NOV Rolligon Set UP.
• Endress Hauser flow tube and transmitter are a match and comes with a calibration chip.
• Flow Tube has a arrow on it for direction of flow.• All Transmitters can be used to Auto- Trim or Zero Mag meter. They must be shut in
and full of liquid not moving. Coil Freq. must be 30• Pulse Test Mode can be used to simulate a rate. 1000 hertz simulated will most
likely give you max flow rate.• Review Manufacture Manual for instillation instructions and trouble shooting steps.
Most manuals have flow charts for programming instructions and how to zero meter.
Pie Frequency Meter and LCR Meter are Used to Trouble Shoot Mag meters
Mag Meter Trouble-Shooting• Pie Frequency Generator can be used to simulate frequency
through mag meter cables to check software, connections, and cables.
• LCR meter is used to check flow tube electrodes while in process full of liquid. http://www.slideshare.net/DavidAakre/rosemount-magmeter-troubleshooting-guide
• The above link will take you to a very good manual on how to trouble shoot a mag meter with LCR meter and its easy to do.
• On transmitter, press Aux Functions until Pulse Output Test is displayed. Use the left arrow to move from left to right, and up arrow to increase numbers. 1000 Hz = Max Rate.
DAVID AAKRE TECHNOLOGIST
Pie frequency Meters are handy in trouble shooting turbine flow meters as well.