7/22/2019 CO2 Level

1/2

Guided Wave Radar Level Measurement in

CO2storage tanks

Levelflex M, Ideal choice for liquid CO2storage tanks.

Brewing or Soft drink production Levelflex M - FMP40 Carbonated beverages

The guided wave radar Levelflex M -FMP40 is used to measure the level in

bullet shaped CO2storage tanks

Customer Profile

Application common to Breweries andcarbonated soft drinks where CO2is stored

Value Proposition

QualityRevenue

CostEfficiency

RiskSoft Facts

Reliable measurement was needed both forcontrol and inventory purpose. Product loss

of beer would result if control is notaccurate. The FMP 40 provided an effective

measurement with low unit and installationcost.

Application description

Products: Liquid CO2

Tanks: Bullet shaped horizontal tank

Temp: Ambient

Pressure: 250-300psiRadar: FMP40 coax or cable version

Mounting: from top of tank

Application

The customer had 6 x 6500 gallon CO2tanks, 4 located outdoors and 2 indoors

working as buffers for production. Thecustomer was relying on sight glass to

determine level but this was very unreliableand often resulted in lack of CO2or over fills.

The customer had tried other guided radarbut with poor results. They also wanted to

use existing nozzles on top of tank.

CO2has very low dielectric constant so forthe first tank a Coax version rod probe was

used to optimize the measurement. Howeverfor the second tank there was not enoughroom above the tank to allow for installation

of the rod. A cable version was thereforeused.

Measurement results

The coax version worked perfect without

any special settings. The cable probe actederratic until the patented end-of probe

function was adjusted. A single rod or cableprobe would not work without the end of

probe function due to the low dielectric ofthe CO2. They have been operational for

over 3 months and the customer is verysatisfied with the measurement performance.

Instrument description

The Levelflex M is a top-mounted, compactlevel transmitter that operates with micro-

impulse radar on the guided time-of-flightprinciple. Fluctuations in the density,

temperature, or build-up do not influencethe measurement.

Measuring principle

The Levelflex is a downward-lookingTime-of-Flight (ToF) measuring system

which measures the distance from theprocess connection to the material surface.

An electrical pulse is launched and guideddown the probe. The pulses are reflected by

the product surface, received by theelectronics, evaluated and converted into

level information.

7/22/2019 CO2 Level

2/2

USA Canada Mexico

Endress+Hauser, Inc.

2350 Endress Place

Greenwood, IN 46143Tel. 317-535-7138

Sales 888-ENDRESS

Service 800-642-8737Fax 317-535-8498inquiry@us.endress.com

www.us.endress.com

Endress+Hauser Canada1075 Sutton DriveBurlington, ON L7L 5Z8

Tel. 905-681-9292800-668-3199Fax 905-681-9444

www.ca.endress.com

Endress+HauserPaseo del Pedregal No. 610Col. Jardines del Pedregal

01900, Mexico D.F.MEXICOTel. 525-568-2405Fax 525-568-7459

CS 0262/24/ae/06.05AE/doc

FMP40 Cable Version

FMP40 Coax Version

Installation of Guided

Wave Radar - LevelflexFMP 40 in CO2tanks

Envelope Curve captured with the free ToF-Tool software. The patented End of Probe algorithm used in

Levelflex M instrument makes it possible to use guided radar in application with very low dielectric constant.