Differential pressure transmitter

Mid-West Insturment (www.midwestinstrument.com) has introduced a new, two-wire, Indicating 4-20 mA Differential Pressure Transmitter for the Model 121. The simple, low-cost, loop-powered 8-28-Vdc transmitter is designed for a variety of applications and is CSA listed for Div. 2 Hazardous Location service. The transmitter features a 0.5-in. NPT interface with an easy-to-wire industrial terminal strip and a removable cover. The unit has a weather resistant gauge front for corrosion resistance.

Transmitter accuracy is +2 percent from 20 percent to 100 percent of full scale with an operating temperature range of -20F to 150F (-20C to 65C). The transmitter has a push-button zero reset feature and is available with an aluminum or 316 stainless steel pressure housing with 316 stainless steel and internal ceramic parts. Maximum safe working pressure is 6,000 psig (400 bar) Units are available in different pressure ranges from 0-5 psid (0-3 bar) to 0-110 psid (0-7 bar).

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Advanced Specialty Gas Equipment (www.asge-online.com) has introduced a new ultra-low delivery pressure, two-stage bar stock body, metal diaphragm regulators. The Models THP and THPS high-purity regulators feature a large 2.75-in. diameter stainless steel diaphragm providing sensitive pressure control as low as 0.2 psig to a maximum of 2 psig. The twostage design provides constant outlet pressure regardless of changes in cylinder (inlet) pressures. The regulators are available in chrome-plated brass or Type 316SS construction and are good for lowpressure control of pure, inert and mildly corrosive gases used with calibration and other analyzer processes.