Section 185.74. Test flows.

 

(1)   T ests. The minimum test flow and "normal test flow limits" as used herein refer to those listed in s. PSC 185.65 . The stated test flows apply for both As Found and As Left tests.

(2)   P OSITIVE DISPLACEMENT METERS. (See s. PSC 185.65 (2) .) For each test, the percent registration shall be determined at each of the following test flows:

(a) The minimum test flow;

(b) Two test flows within the normal test flow limits, one to be approximately at the maximum registration and the other to be at a flow as high as practicable within the normal test flow limits.

(3)   C OMPOUND METERS. For each test it shall be determined whether or not the by-pass unit operates at the minimum test flow and, in addition, the percent registration shall be determined at each of the following test flows as determined from accuracy curves for the particular type and size of meter:

(a) The flow for maximum registration of the by-pass unit;

(b) A flow near the point of minimum registration within the change-over range;

(c) At least 3 flows within the normal test flow limits of the current unit, one of which is to be at the flow for maximum registration, one at approximately 50 % of such flow but above the change-over range, and one at as high a flow as practicable.

(4)   T URBINE METERS. For each test the percent registration shall be determined at each of the following test flows:

(a) The minimum test flow;

(b) At least 3 flows within the normal test flow limits, one of which is to be at or near the lower limit, another as near as practicable to the upper limit, and one at an intermediate flow rate.

Cr. Register, January, 1997, No. 493 , eff. 2-1-97.