SET UP OF FLOW INDICATOR

4.1A

Step 1 Use flow range determined in 4.1.

Step 2 Determine the kinematic viscosity (V) of the calibration fluid.

Step 3 Using flow range from Step 1 and the kinematic viscosity from Step 2, refer to the C-factor vs Hz/curve

provided in the kit for the flowmeter to be used and determine which portion of the curve is covered by

the test unit.

Step 4 a) If the flow range falls within the flat part of the curve (0.5% of C-factor) set the indicator to read rate

as discussed in Section 1.2 of Reference A. This will allow direct reading flow rate in gallons per minute.

b) If the flow range falls outside the flat portion of the curve, set the indicator to read frequency (Hz) as

discussed in Section 3.3.1 of Reference A and use the C-factor versus Hz/V curve (Figure 15) to

determine the flow rate in gallons per minute.

-NOTE-

GPM = C x Hz where

Hz = Flowmeter Frequency

C = Flowmeter Calibration Constant

IF MASS FLOW RATES ARE DESIRED, CONVERT

FROM VOLUMETRIC RATES AS FOLLOWS:

PPH = GPM x 500 x SPECIFIC GRAVITY

4-3