Magmeter solves flow rate monitoring problem for chip manufacturer

Upgrading sensing equipment with a new magmeter is helping a chip manufacturer solve on-going flow monitoring problems.

07/21/2005


Upgrading sensing equipment with a new magmeter is helping a chip manufacturer solve on-going flow monitoring problems.

FlipChip International, a Phoenix, AZ-based manufacturer of small, thin chips for the semiconductor industry, has been experiencing problems with scrubber flow rate monitoring. With pre-set lower and upper flow limits on the scrubbers, indication was so radical that it was difficult to prove what the flow rate was. State inspectors had expressed concern over these results for some time.

Instrumentation
Instrumentation
Installing Signet 2551 magmeters from George Fischer Inc. on scrubbers (left) solved flow-monitoring problems for this semiconductor chip manufacturer. Device is an insertion style magnetic flow sensor that features corrosion-resistant materials of construction and no moving parts.

To solve the problem, the company installed a new Signet 2551 insertion magmeter from George Fischer Inc . The insertion style electro-magnetic flow sensor is intended for conductive fluid applications that contain particles, solids, and fibers. Device has no moving parts to wear or foul and provides a side dynamic flow range of 0.15-33 ft/s (0.05-10 m/s). Repeatability is

“With the magmeter, our indication is now very stable,” said Roy Chlarson, facilities manager, “even though we do not have the ideal installation. We know that we have turbulent flow because of the fittings and elbows in close proximity to the transmitter,” he explained. Nonetheless, the installation’s annual inspection showed significant improvement resulting from the changes, said Chlarson. “When the inspector asked what the difference was,” he said, “I explained that it was the upgrade to the magmeters.”

—Jeanine Katzel, senior editor, Control Engineering, jkatzel@reedbusiness.com





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