Todays deals on Flow Meter?

Flow Meter Standard – Calibrator – Complete System $18,000.00

NEW Optical Scientific OFS 2000 Flow Meter System Environmental Monitor $12,900.00

LANCOM Portable flue gas Analyzers $4,500.00

HONEYWELL ROSEMOUNT FLOW METERS (2) NIB OLD STOCK $4,500.00

Used E6000A OTDR with E6004A Module $3,500.00

ENDRESS + HAUSER 53H22-EA0B1RB0BBAA 1″ FLOWMETER NIB $3,500.00

Siemens Sitrans F M Magflo 5100W Flow Meter with MAG5000 $3,300.00

Siemens Sitrans Magflo 5100W Flow Meter with MAG5000 $3,200.00

Marsh-McBirney Flo-Mate Model 2000 Electromagnetic Velocity portable Flowmeter $2,990.00

ABB FLOW METER 10DX3111ADE09P1A2EAA1132 *NEW* $3,000.00

TSI 8375 $2,895.00

BAILEY FISCHER PORTER 10D1475SN06PM29A011C2112E1 FLOW METER 3/8IN 23VA **XLNT** $2,799.00

Thermo Polysonics Ultrasonic Flowmeter KC-DCT1088 $2,685.00

ENDRESS + HAUSER FLOW METER 53H22-1GOB1A31BCJB $2,500.00

ENDRESS + HAUSER FLOW METER 10H22-1F0A1AG2B4AA $2,500.00

EMCO Turbo-Bar Flow Meter Model TMP-910-2F150 $2,200.00

AT868-2-1-1-1 GE Panametrics Liquid Flowmeter $2,300.00

BAILEY FISCHER & PORTER 50SM13A1BXD10ACEC2101 MAGNETIC FLOWMETER SIGN. CONVERTER $2,200.00

Danfoss Magflo 3100 flow meter flowmeter DN80 $2,000.00

1 DYNASONICS M3902 FLOW METER L18 $2,100.00

NEW FTI FLOW TECHNOLOGY DC01I-6199-5101-000 POSITIVE DISPLACEMENT FLOW METER $2,099.99

HONEYWELL KIX18B-E11P2TY-XSX FLOWMETER CONVERTER ***NIB*** $1,999.00

Testo 400563 4352, 435-2 AC System Analyzer Kit No Probes $1,990.00

Siemens Sitrans FM Magflo MAG6000 Flow Meter 7ME6930 $2,000.00

AT868-1-1-1-1 GE Panametrics Liquid Flowmeter $2,000.00

Clean Marine Systems Aqua-Sonar Marine Flow Meter $2,000.00

Parker Serviceman SCM-152 Pressure, Temperature, Flow, Hydrolic, Pneumatic Meter $1,899.00

Testo 400563 4354, 435-2 IAQ Kit with memory $1,894.00

ALLEN BRADLEY 1771-CFM 1771CFM FLOW METER NEW NIB FS 2011 $1,850.00

Gems Remote Monitoring , Messenger 570 $1,750.00

NEW YOKOGAWA AXF002C MAGNETIC FLOWMETER AXF002CD1AL1LAA1121B $1,750.00

FLOW BASICS MODEL 7150 1″ FLOW METER 3307.0024 NIB $1,750.00

OFFER & WIN ENDERS HAUSER PROMAG 30A FLOW METER 30AT02-AD1AA11A32B $1,500.00

Endress+Hauser Flowmeter Promass 80 $1,400.00

SHORTRIDGE INSTRUMENTS V-LOW HOOD 8400 BACK PRESSURE COMPENSATED AIR BALANCE $1,499.99

DIETERICH STANDARD PROBAR FLOW METER-ANNUBAR- ROSEMOUNT TRANSMITTER-PBF+26S $1,500.00

KROHNE IFC 090 FLOW METER MAGNETIC KROHNE ALTOMETER IFM4090/D/HART/6 $1,500.00

Yokogawa AXF Magnetic Flowmeter AXF025C-E1AH-BA11-21B/FF1 *NEW in BOX* $1,499.00

Flow tube for Heated Flow Meter – MCS100 – Emission Monitor $1,482.00

Yokogawa Admag AXF100G NEW IN BOX Magnetic Flowmeter Flow Tube AXF $1,286.74

MICRO MOTION DS150S151SU TRANSMITTER MASS FLOW Flow Meter $1,420.00

ROSEMOUNT SANITARY FLOWMETER 8721ASA020RA1N0 $1,424.99

ROSEMOUNT MAGNETIC FLOWMETER TRANSMITTER 8712DR12NDM4 $1,424.99

BAILEY FISCHER & PORTER MAGNETIC FLOW METER (230Vac) $1,299.00

ALLEN-BRADLEY 1771-QRD. PULSE FLOW METER MODULE, NIB $1,400.00

Rosemount Flowmeter Vortex 8800C Hart $1,199.99

MAX MACHINERY FLOW TRANSMITTER METER 215-390 NEW $1,295.00

Controltron System 1010 Uniflow Universal Multifunction Flowmeter $1,299.99

Danfoss Magflo 2500 flow meter flowmeter head $1,200.00

FISCHER & PORTER 10D1475PK11PL29AC11C1112 FLOWMETER ***NIB*** $1,199.00

Dieterich Standard Fisher-Rosemount Mass ProBar PBR-25 $1,200.00

SIEMENS SITRANS-P $1,200.00

YOKOGAWA digitalYEWFLO Vortex Flow Meter DY025 INTEGRAL DY025-S1-EBMBA1-2D/FF1 $1,199.00

Porter Instrument Co Flowmeter 2000-OS $1,150.00

BIOS Drycal DC-Lite Primary Flow Meter Model DCL-H Rev. 1.08 $1,161.99

SIGMA MODEL 970 FLOW METER $1,150.00

NEW ROSEMOUNT Differential pressure flow meter 3051 03031-0761-0022 $1,000.00

Foxboro vortex flow meter M/N 84F-T03S1SSTJK $1,055.00

EG&G Flow Technology FC-70A Batch / Temp Controller $1,100.00

Rosemount Flowmeter Vortex 8800 Hart $899.99

Endress Hauser Promass 63 M, 3″ Flowmeter/Transmitter $999.00

TENNELEC TB 3LB NIM BIN LOADED POWER SUPPLY FLOWMETER $999.99

ALLEN BRADLEY FLOWMETER MODULE 1756-CFM/A (BRAND NEW) $989.80

ATEQ DP FLOW METER INDIRECT FLOW TESTER CONTROLLER $999.99

Rosemount Model 8732C Integral Mount Magnetic Flowmeter System 8732CT12M4T1 NEW $999.95

Brooks Instrument VoI-U-Meter Flow Rate Calibrator $1,000.00

Allen Bradley Configurable Flow Meter Module 1771-CFMK $1,000.00

JOHNSON YOKOGAWA YEWFLO YF105 VORTEX FLOWMETER ***XLNT*** $999.00

Rosemount 8742C Magnetic Flowmeter $999.00

YOKOGAWA Electromagnetic Flowmeter AXFA14G-E2-41/CH (AXFA14GE241CH) NIB! $1,010.00

Testo 400563 4350, 435-1 Velocity Kit – Hotwire $994.00

NEPTUNE FLOW METER VALVE NEW 1” (S1C) $990.00

MAX MACHINERY FLOW TRANSMITTER METER 284-512 NEW $995.00

Wallace & Tiernan Direct View Flow Meter 5510A01146XXL $999.00

Endress+Hauser LIQUICAP M FMI51-A1BTDJB1A1A LevelSensor $900.00

Krohne IFS5000 Flowmeter IFS-5000 NEW $950.00

Brooks Instruments Smart Mass Flow Meter 5853S with 1″ Swagelok Comp Connection $920.00

* SIEMENS 7ME658, SITRANS F M MAG 5100 W FLOW METER $799.00

OTC 6522 Smoke Machine Leak Detection System with Flow Meter $925.00

EG AND G FLOW TECHNOLOGY FC 70 $899.99

ENDRESS HAUSER PROWIRL 73 W $890.00

HEDLAND H801A-100-TK OIL TEST KIT 10-100 GPM 1-1/4″ NPT 3500 PSI FLOW METER $875.00

S-E-G Instrument W10.0 SEG 140a SEG 141 Mass Flow Meter SEG Instrument $786.00

Kanomax 6813, Anemomaster (Rotating Vane Anemometer) $870.00

Fluoroware Accutek Flow-meter FM-12F-37850-P $872.99

Brook Mag 3580 Magnetic Flowmeter Electronics-Used $850.00

Air Liquide DIVA ARM 4.20 MASTER Rosemount 3051 sensor $690.00

YokoGawa Vortex Flow Meter Model YF105 $800.00

KILLARK EXPLOSION PROOF BOX WITH THERMAL INSTRUMENTAL FLOW METER NEW $799.99

Micro Motion Flow meter, Type 4, NIB $780.00

HEDLAND FLOWMETER H800-100 10-100 GPM, OIL NEW $799.95

New TUF-2000P Portable Ultrasonic Flowmeter Digital Flow Meter Tester $806.80

Allen Bradley 1756-CFM 1756CFM Configurable Flow Meter $799.95

TDS-100H-M1+L1 Sensor with Calibration Certificate Ultrasonic Flow Meter Tester $755.00

TDS-100H-M1+L1 Sensor with Calibration Certificate Ultrasonic Flow Meter Tester $799.90

Brooks Wafer-Mag Flow Meter 7403C5A1F7AGAA **NIB** $785.00

ENDRESS+HAUSER PROWIRL 70WS50-B0A00A2A102 FLOWMETER $725.00

ALNOR FLOW HOOD BALOMETER HOOD AIR METER Great Condition $729.00

NEW FOXBORO 83 5 1/2″ FLOWMETER W-DO3S1STTJN-N $750.00

YOKOGAWA AM012 MAGNETIC FLOWMETER CONTROLLER $749.99

Flow Meter Questions

Ultrasonic Flow Meter – Some Basic Principles

Ultrasonic flow meter technology has much improved over the last few years and now forms a viable flow measurement technique compared to other methods such as turbine and electromagnetic type systems. The first Doppler ultrasonic flow meter units became available in the early 70’s. To begin with, as with all new technologies they were not very accurate, difficult to install and costly. However, the newest Time of Flight ultrasonic flow meter and Doppler types are proving to be both reliable and accurate. Accuracy has improved significantly with most ultrasonic flow meter manufacturers claiming 0.5% accuracy if the meters are correctly installed.

With these two technologies, which ultrasonic flow meter should you use?

Although Doppler ultrasonic flow meters use an older technology, they are ideal for liquids with air bubbles or slurries with significant solid particles. They determine the flow using the Doppler shift method, by measuring the change in frequency created by an object moving towards, or away from the measurement point. Normally liquids with a minimum of 100ppm concentration at 100microns particle size or bigger would be suitable for a Doppler ultrasonic flow meter. One stumbling block of most Doppler ultrasonic flow meter systems is that they are less accurate in low flow conditions.

A transit time ultrasonic flow meter is ideal for clean fluids such as water and oil. These meters are more advanced than Doppler ultrasonic flow meter types due to the advanced calculations used to determine the flow rate. Two transducers are used, the first sends an acoustic signal which is bounced off of the bottom of the pipe, the second transducer receives the signal. The ultrasonic flow meter is then able to determine flow by calculating the time it takes to receive the signal.

Portable ultrasonic flow meter kits are now available for plant wide surveys with minimal fuss and no down time. The first portable ultrasonic flow meter units were heavy and quite large, basically a luggable design. As ultrasonic flow meter design has improved over time, the instruments have become much smaller, lighter and more power efficient and are truly hand portable. Also many ultrasonic flow meter models now have integral data loggers, allowing the user to leave the meter on site so it can record average flow rates and flow totals.

An ultrasonic flow meter will be most accurate when fitted on a long, straight piece of pipe, free from obstructions such as elbows and valves. Also, any rusty pipes should be cleaned before using an ultrasonic flow meter. Ultrasonic jelly should also be smeared under the sensor to ensure a solid contact on the pipe.

The biggest advantage to using an ultrasonic flow meter is maintenance. Older insertion meters usually require the plant to be shut down while installing. However an ultrasonic flow meter can be installed without stopping the process. Also as an ultrasonic flow meter has no moving parts it cannot wear out.

Both Doppler and transit time portable ultrasonic flow meter kits are available from Omni Instruments for hire or purchase.

By Richard Burgess

OmniInstruments.net

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About the Author

Jim Furness is CEO of Omniinstruments Ltd, specialists in data logger and other instrumentation solutions such as Ultrasonic Flow Meter.

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