Ashcroft GC52 - Rangeable wet/wet Differential Pressure Tra Manuel d'utilisateur télécharger pdf (Page 23)

䡵 Square Root

The momentary flow rate Dx at a generated differential pressure of 16IW

(40%F.S.) is calculated by the following formula:

The coefficient k is determined by substituting the maximum momentary flow

rate Dm=120 and the then differential pressure Pm=80%F.S.(32IW) into the

formula (b) of the preceding paragraph 11.4 (1).

120

(Dx)

(Max.)

84.9

80 100

Differential Pressure

(%F.S.)

Momentary Flow Rate

(16IW)

(32IW)

k =

100

= kx

100

公

120

100

公

Therefore, the momentary flow rate Dx is determined by the formula (a) of

the preceding paragraph 11.4(1).

134.2

= 84.9

= 134.2

䡵 Setting example 4: Arbitrary unit of square root display mode

 Setting of momentary flow rate

In order to set a momentary flow rate to an “arbitrary unit,” the

momentary flow rate unit must be set as the arbitrary unit, and the

maximum momentary flow rate of the arbitrary unit and the then

generated differential pressure must be set.

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Ashcroft GC52 - Rangeable wet/wet Differential Pressure Tra Manuel d'utilisateur Page 23