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GAS DATA

Monitoring the Environment

GFM600 Velocity

Monitor User Manual

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Summary of Contents for GFM600

Page 1: ...GAS DATA Monitoring the Environment GFM600 Velocity Monitor User Manual...

Page 2: ...hive User guide to the operation of the GFM600 portable Velocity monitor Issue Description New manual February 2007 Revision Description First release for proof checking Gas Data Pegasus House Wheler...

Page 3: ...ttery warning 7 Batteries 7 Factory calibration 8 Technical Specification 9 Conversion charts 10 Understanding instruments for use in flammable atmospheres 13 Hazardous areas classified by zones 13 Di...

Page 4: ...rials and workmanship for a period of one year from the date of shipment to the user During this period Gas Data Limited will repair or replace defective parts on an exchange basis Freight charged to...

Page 5: ...not attempt to dismantle the instrument It contains no user replaceable parts Do not operate the unit if it is damaged in any way i e loose front panel missing screws etc Do not connect or remove plug...

Page 6: ...U S E R M A N U A L In the case The GFM600 instruments are supplied in a fitted case containing the following items GFM600 instrument Vane anemometer Battery charger GFM600 3 GFM600 Velocity Monitor...

Page 7: ...velocity screen 5 Power ON OFF This key simply toggles the instrument on or off Under battery power the instrument will automatically turn itself off if no key is pressed for 10 minutes The instrumen...

Page 8: ...pipe through which the gas is flowing Connect the vane anemometer to the Communications Anemometer port on the top end of the instrument case After you have switched the instrument on the display scre...

Page 9: ...e key The instrument will now measure the velocity of the gas flowing through the pipework When the reading has stabilised press the sample key again to retain the reading This will return the highlig...

Page 10: ...rger lead to the socket on the top end of the instrument and plug the charger into the mains The batteries will be fully charged in about three hours Batteries The GFM600 Series uses rechargeable Nick...

Page 11: ...y charged After four weeks charge the batteries again However if the instrument does not operate after prolonged storage the batteries have become discharged and will be unable to fast charge They wil...

Page 12: ...pecification GFM600 9 GFM600 Velocity Monitor User Manual Range Vane anemometer 12mm diameter x 340mm long 0 40 m s Size 200mm x 90mm x 50mm approx Weight 400g approx Battery type Rechargeable Nickel...

Page 13: ...ou to make quick and easy conversions from velocity measurements provided by the vane anemometer to flow rates Velocity Flow conversion chart 160 00 140 00 120 00 100 00 80 00 60 00 40 00 20 00 0 00 0...

Page 14: ...1 5 2 2 5 3 3 5 4 4 5 5 Velocity ms 1 Velocity Flow conversion chart 6000 00 5000 00 4000 00 3000 00 2000 00 1000 00 0 00 0 5 10 15 20 25 30 35 40 Velocity ms 1 GFM600 11 GFM600 Velocity Monitor User...

Page 15: ...M 6 0 0 U S E R M A N U A L The formula for calculating the conversion is f 0 00283d v where f flow in m3h 1 d pipe inside diameter in mm v velocity in ms 1 GFM600 12 GFM600 Velocity Monitor User Manu...

Page 16: ...l operation 3 Zone 2 An area in which an explosive gas air mixture is not likely to occur in normal operation and if it does occur will exist only for a short time Make certain that the area in which...

Page 17: ...used will prevent the generation of a spark or temperature capable of igniting the gas even if the instrument develops TWO faults 2 ib The safety circuits used will prevent the generation of a spark...

Page 18: ...teria set out above and controls the manufacture This process is defined in Annex II of the European ATEX Directive 94 9 EC This allows the instrument to carry the Ex logo followed by a summary of the...

Page 19: ...office or to the carrier at your company s location Avoid moisture extreme temperatures and vibrations Do not shake Cleaning of probes and indication unit only according cleaning instruction Strong el...

Page 20: ...and probes will remain in a serviceable condition and guarantee the reliable operation of the measuring system Each instrument has its designed range of application and is only to be used for this If...

Page 21: ...r allow hard objects to contact rotating impellers Cleaning agents which extract the plasticizer from the plastic are never to be used for plastic probes practically all solvents We recommend the foll...

Page 22: ...parts are never to be immersed in the solution Snap Head The snap head fixing system renders it very simple to fit a new impeller to the flow probe this saves costly non productive time and in the ev...

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