Phoenix chip maker solves flow rate monitoring problem with insertion magmeter

FlipChip International, a manufacturer in Phoenix, makes small, thin chips for the semiconductor industry. The company uses George Fischer Signet flow sensors for its scrubbers and in September 2004 upgraded its sensing equipment with the new Signet 2551 Magmeter to solve on-going flow monitoring problems...

PHOENIX, AZ, July 29, 2005 -- FlipChip International, a manufacturer in Phoenix, makes small, thin chips for the semiconductor industry. The company uses George Fischer Signet flow sensors for its scrubbers and in September 2004 upgraded its sensing equipment with the new Signet 2551 Magmeter to solve on-going flow monitoring problems.

According to FlipChip facilities manager Roy Chlarson, the company had experienced significant problems with scrubber flow rate monitoring. This is because fittings and elbows in close proximity to the Signet Rotor-X Paddlewheel sensors installed earlier created turbulent flow that interfered with their ability to get an effective reading. Straight runs are recommended before a sensor site to prevent "choppy" flow. These straight runs that flow sensors require before the sensor are to ensure a smooth flow of liquid passing the sensor

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. The state inspector had been displeased with these results for a long time.

After Flipchip installed the new insertion magmeter, the flow monitoring problem was solved. The reading was not as erratic as it had been with the paddlewheel. This was evident due to more stable readings that could be visually seen on the instrument display.

"With the Magmeter, our indication is now very stable, 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," explains Chlarson.

The magmeter is an insertion style electro-magnetic flow sensor especially intended for conductive fluid applications that contain particles, solids and fibers. Designed with no moving parts to wear or foul, it provides a wide dynamic flow range of 0.15 to 33 ft/s (0.05 to 10 m/s). Repeatability is ±0.5% of reading, even in extremely dirty fluids and superior linearity of ±1% reading provides excellent performance.

"We just completed our annual inspection from the state and the inspector was amazed at the changes that we had made," says Chlarson. "When the inspector asked what the difference was, I explained that it was the upgrade to the magmeters."

George Fischer Signet, Inc., a provider of instrumentation and sensors for fluid measurement solutions, is based in El Monte, Calif. The collective George Fischer product offering includes plastic pipes, fittings, valves, actuators, rotameters, fusion machines, secondary containment, tank linings, heat exchangers, custom products, sensors and instrumentation for industrial process control. Contact: 626-571-2770 or signet.ps@georgfischer.com.

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