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INSTALLATION DOS AND DONTS To obtain satisfactory operation froma Lake pneumatic flow rate monitor, the following points should be con- sidered: DO

Lake Monitors Brand Catalog - 13569 Pneuatic Monitor ses and Oeratin TeorPneuatic Monitor ses and Oeratin Teor

Flow Range Method Estimating the flow rate in a com-pressed gas system may seem com- plicated, but with some research and a few simple equations an educated guess can be made. Two suggested methods are: A compressor is typically rated inSCFM output at a certain pressure and efficiency. If the rating cannot be located or is unknown, an estimate of compressor output can be obtained by the following formulas: 1 PSIA PSIG
â—† install a pressure gauge near teinlet of te monitor
â—† place trottling ales at te outlet of te monitor
â—† use pipe sealer on te connections
â—† install a union on one side of te monitor for easy remoal for maintenance and calibration
â—† -stage compressors :motor HP/0. SCFM 00 PSIG
â—† install solenoid ales at te monitor outlet as far down- stream as possible 2 PSIA 1 PSIG
â—† 2-stage compressors :motor HP/0.64 SCFM 00 PSIG DO NOT
â—† mount in any orientation: erti- cal orizontal or upside down
â—† -stage compressors :motor HP/0.5 SCFM 00 PSIG
â—† install restrictions between pressure gauges and te monitor inlet Method 2 If all of the potential of a compressoris not being used the unit cycles on and off or if flow rate in excess of compressor capacity is being consumed the compressor cannot meet the demand, a summation of machine usages can be totaled to determine the maximum flow rate. Most machine tools that use com- pressed air specify the maximum consumption of the tool.
â—† install solenoid ales at te monitor inlet
â—† place restrictions between te monitors pressure gauge and te monitor inlet
â—† use in systems were reerse flow is possible
â—† place monitor in non-aligned piping 88 PSIA 2 PSIG
â—† oer-flow te monitor by more tan 5% of maximum reading
â—† operate at pressures and temper- atures greater tan specified

Density Correction Factors

SCFM indicated CF SCFM actual CF f f2 f Note: all correction factors need not be used. Table . f PRESSURE CORRECTION FACTORS inlet pressure psig 25 50 5 00 25 50 5 200 f.56 .5 . .0 . .2 .2 . Table 2. f 4. psig4. f2 TEMPERATURE CORRECTION FACTORS IGR 1. F 0 0 50 0 0 0 0 50 f2.0 .04 .02 .0 . .6 .5 . Table . f2 50460 F A diagram illustrating the effect ofdifferent pressures on the volume of gas.
f SPECIFIC GRAVITY CORRECTION FACTOR f correction factor for other than 00 PSI inlet.f2 correction factor for other than 0 F.f correction factor for other than air at .0 Sp. Gr. f Sp. Gr. AW-LAE COMPAN, A TASI Group Company , 0 Industrial Dr., Franksville,WI526262.4.00 / Fax: 262.4.0 / 00.50.60 GS-1106 7.5M MR / WGD / MAS © 2006 AW-Lake oan

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