SG11201901955WA - Flowmeter calibration method and related apparatus - Google Patents

Abstract

INTERNATIONAL APPLICATION PUBLISHED UNDER (19) World Intellectual Property C.--.` MD Organization International Bureau 03 (43) International Publication Date .....•\"\"- 12 April 2018 (12.04.2018) WIP0 1 PCT THE PATENT COOPERATION TREATY (PCT) HIM 01E101011M 3E1 0 011101100 Ell HMI 11110 MOEN (10) International Publication Number WO 2018/067128 Al (51) (21) (22) (25) Filing Language: (26) (71) (72) (74) (81) International Patent Classification: MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, GO1F 25/00 (2006.01) GO1F 15/02 (2006.01) PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, GO1F 1/84 (2006.01) SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, International Application Number: TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. PCT/US2016/055340 (84) Designated States (unless otherwise indicated, for every International Filing Date: kind of regional protection available): ARIPO (BW, GH, 04 October 2016 (04.10.2016) GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, English TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, Publication Language: English EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, Applicant: MICRO MOTION, INC. [US/US]; 7070 Win- TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, chester Circle, Boulder, Colorado 80301 (US). KM, ML, MR, NE, SN, TD, TG). Inventor: PATTEN, Andrew Timothy; 123 Green Mead Declarations under Rule 4.17: ow Lane, Boulder, Colorado 80302 (US). — as to applicant's entitlement to apply for and be granted a Agent: COSTA, David et al.; The 011ila Law Group LLC, patent (Rule 4.17(0 2569 Park Lane, Suite 202, Lafayette, Colorado 80026 Published: (US). — with international search report (Art. 21(3)) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, — = = _ = = (54) Title: FLOWMETER CALIBRATION METHOD AND RELATED APPARATUS (57) : tion of a flowmeter during field operation is provided that comprises 300 providing tem, and ter. Meter electronics are configured to perform the steps of: detect- ing a model calibration A method of automatically verifying accurate opera- a flowmeter having meter electronics with a storage sys- flowing a non-calibration process fluid through the flowme- of the flowmeter as well as retrieving an initial factory factory zero value and a stored zero drift specification storage system. A zero value is measured during field op- of the flowmeter and compared with the factory zero value. zero value is calculated. Whether the error between the field zero value and the factory zero value is within the zero is determined, and the flowmeter is calibrated if is outside the zero drift specification. = - = = ACTIVATE DEVICE from the = = 310 eration = An error ESTABLISH NORMAL OPERATING CONDITIONS operation = 320 drift specification = DETERMINE PERTINENT PARAMETERS the error 330 1-1 GO el Il IN 0 --.... GO ,-, © N DETERMINE SPECIFICATION DEVIATIONS 340 CALIBRATE METER 1\ -350 FIG.3 C