4.Fill the prover using the dispensing equipment until the meter being checked reads the nominal capacity of the prover. 5.Identify the volume measurement on the scale by reading the meniscus in the gauge glass. Look directly from eye level to a horizontal line tangential to the bottom of the meniscus. Record the result. 6.Drain the prover by opening the bottom drain cock. Once the main flow breaks, drain the prover for an additional 30 seconds and close the valve. This is necessary to provide a consistent “to deliver” condition. 7.Perform a second measurement by repeating the procedure in 3. through 6. above. Compare the meter reading to the volume observed on the scale. The two successive measurements should agree with the meter tolerance specifications of the meter manufacturer.

CAUTION: Disposal of drained fluid should be done in an environmentally safe and responsible manner in accordance with good industry practices and in compliance with OSHA regulations

8.If excessive disagreement is observed, check the dispenser and the prover for leakage and cleanliness and repeat the procedure until the results of two successive runs repeat within acceptable tolerance

CAUTION: Disposal of drained fluid should be done in an environmentally safe and responsible manner in accordance with good industry practices and in compliance with OSHA regulations Seraphin® - 30 Indel Avenue – Rancocas, NJ 08073 Tel: 1-609-267-0922 Fax: 1-609-261-2546 e-mail: sales@seraphinusa.com Pub E91-4044