ABB Flowmeter Has Onboard Electronic Verification

ABB's electromagnetic Watermaster flowmeter, designed specifically for the water, wastewater and effluent sewage markets, now has an in-situ flowmeter verification capability. Built into ABB's Watermaster flowmeter, the Verimaster system provides users with the ability to perform in-situ verification across the complete range. Verification diagnostics monitor and validate across a performance-wide matrix, while precision flow measurement techniques are employed in the sensor with an octagonal bore at core sizes.

By using the simultaneous and parallel operation of the Hart protocol, remote HMI and cyclic data output are all achieved with zero measurement loss during data capture. Watermaster's sensors are said to provide a long, productive and maintenance-free asset life. The addition of the Verimaster software tool enables operators to quickly produce a printed verification certificate for regulatory compliance. Watermaster is available in flowmeter sizes 40mm-2,200mm (1.5in-88in).

Fit and Flow data storage inside Watermaster eliminates the need to match sensor and transmitter in the field. On initial installation, the self-configuration sequence automatically replicates into the transmitter all calibration factors, meter size and serial numbers, as well as customer site-specific settings. Watermaster offers diagnostic capabilities to provide the right information to keep a process up and running. Alarms and warnings are classified in accordance with Namur NE107.

The meter is also verified to OIML R49 type P requirements to ensure accuracy and long-term performance of the system by continuous self-checking of the sensor and transmitter in the field. Watermaster gained an Mcerts flow product approval certificate in November 2008 and has been adopted by several EPR operators and water companies for EA Consented applications.

The introduction of the Verimaster software tool allows users to electronically verify flowmeters and demonstrate a good metering maintenance regime. ABB service teams offer users the complete verification service utilising the Calmaster2 and Verimaster suite of verification tools. ABB said that all of its flowmeters are designed and manufactured in accordance with international quality procedures (ISO 9001) and are calibrated on rigs that are accredited to Ukas and international flow standards.

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