Kansas Administrative Regulations
Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES
Article 1 - DEFINITIONS
Section 5-1-4 - Water flowmeter specifications

(A) The water flowmeter has been certified by the manufacturer to register neither less than 98 percent nor more than 102 percent of the actual volume of water passing the water flowmeter when installed according to the manufacturer's instructions. This requirement shall be met throughout the water flowmeter's normal operating range without further adjustment or calibration.

(B) The manufacturer has certified to the chief engineer that it has an effective quality assurance program, including wet testing a random sample of production line water flowmeters with water flowmeter test equipment. The minimum number of samples to be tested shall be determined using a confidence interval of 90 percent, an expected compliance of 95 percent, and an acceptable error of two percent. The minimum number of samples of each model that shall be tested shall be calculated by multiplying 1,300 times the annual production of that model of water flowmeter divided by Q. Q equals four times the annual production of that water flowmeter plus 1,300.

(C) The manufacturer has certified that the water flow-meter test equipment described in paragraph (a)(1)(B) has been tested annually and found accurate by standards traceable to the national institute of standards and technology (NIST). Documentation of the testing required in paragraphs (a)(1)(A) and (B) shall be maintained by the manufacturer for a period of at least five years and shall be made available to the chief engineer upon request during normal business hours.

(A) Maintain the accuracy required by the chief engineer in paragraph (a)(1)(A) through (C) and K.A.R. 5-1-9(a)(1) ;

(B) be protected by the following:

(C) clearly indicate the direction of water flow;

(D) clearly indicate the serial number of the water flow-meter;

(E) have a weatherproof register that is sealed from all water sources;

(F) have a register that is readable at all times, whether the system is operating or not;

(G) be able to be sealed by an authorized representative of the chief engineer to prevent unauthorized manipulation of, tampering with, or removal of the water flow-meter;

(H) be equipped with a manufacturer-approved measuring chamber through which all water flows. Except for positive displacement water flowmeters, full-bore electromagnetic water flowmeters, and multijet water flow-meters, flow-straightening vanes shall be installed at the upstream throat of the water flowmeter chamber. The flow-straightening vanes shall meet either of the following criteria:

(I) be equipped with an inspection port if the straightening vanes are not designed, constructed, and installed by the manufacturer or an authorized representative of the manufacturer. The port shall be of sufficient size and placement to allow determination of the following:

(J) remain operable without need for recalibration to maintain accuracy throughout the operating life of the water flowmeter; and

(K) have a totalizer that meets the following criteria:

(A) Each water flowmeter shall be of the proper size, pressure rating, and style, and shall have a normal operating range sufficient to accurately measure the water flow passing the water flowmeter under normal operating conditions.

(B) Each water flowmeter shall meet the accuracy requirements of K.A.R. 5-1-9(a)(1) . If the water flowmeter does not meet the accuracy requirements of K.A.R. 5-1-9(a)(1), then the water flowmeter shall meet either of the following criteria: