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G F M 6 0 0  U S E R  M A N U A L 

 

 

-Streamline Measuring Head  

The form of the measuring head guarantees a high direction insensitivity which is 
approx. +/- 20 degrees for Micro head and +/- 25 degrees for Mini head.  

 

Response Time 

 

Response Time of electronic:  

When connected to supply (on/off): 

immediate 

Time to reach 63 % of end value: 

424 ms  

Response Time of Vanes: 

Increase of flow: 

1.0 sec. 

Decrease of flow: 

8.0 sec. 

Technical data – MiniAir 6 Micro 

 
 
 
 
 
 
 
 
 
 
 

Cleaning and maintenance 

 

Schiltknecht instruments are precision products which will give fault-free service if 
correctly handled. If you handle them as described in the operating instructions,  
your instruments 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 faults should nevertheless occur, 

do not attempt to open the instrument and 

repair it yourself;

 always have repairs carried out by our after-sales service.  

 

General handling tips

  

-Protect the probes against severe vibration 

-Do not kink the connector cable (risk of cable break) 

-Never allow hard objects to contact rotating impellers. 

-Always carry out probe cleaning according to the cleaning instructions -Never 
immerse probes in solvent  

 
 

GFM600 

- 17 - 

GFM600 Velocity Monitor User Manual

Measuring range  

0.7 – 40 m/s  

Ac/-  

1.0% fs  

Operating temp.  

-10 to +80°C  

Head dimensions  

11 x 15mm  

Access opening  

16mm  

Probe length  

165mm  

Storage temp.  

-65 to +150°C  

Содержание GFM600

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 23: ......

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