Product Roundup of pressure instrumentation devices

Waiting as fast as we can: Pressure instrumentation continues steady progress but promised sensor technology has yet to appear.

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Submersible Transmitter
The Sitrans P MPS pressure transmitter has a submersible sensor for hydrostatic level measurements in wells, tanks, channels and dams. It has a flush-mounted piezo-resistive sensor with stainless steel diaphragm, is temperature compensated, and has a 4–30 mA output. Transmitters are available in various measuring ranges. Options include explosion protection, junction box and a cable hanger. The cable also contains a strength cord and vent pipe. Siemens Energy & Automation; 215/646-7400 x2592;

Stainless Steel Sensor
Industrial Pressure Transmitters are made of stainless steel for IP 67 level protection. The transmitters are available in 16 pressure ranges that span 14.5–8,700 psi and can be ordered with 0–10 V or 4–20 mA outputs. A media stop, included with devices rated over 40 bars, contains the process media in the event that the burst pressure is exceeded. Turck; 800/544-7769;

No-Clog Attachment
LevelGuard anti-clog attachment for Tronic submersible liquid level transmitters is suitable for level sensing applications where sludge, slurry or turbulence may be present. The cable supplied with submersible pressure transmitters withstands 200 lb. of strain, so additional support or conduit connections are not necessary. It is available with the LS-10, LH-10 and IL-10 submersible level transmitters. WIKA Instrument; 770/338-5170;

Pressure Sensor
The Signet 2450 pressure sensor has a 0–10 psig operating range, making it suitable for liquid level applications including monitoring of tank levels for UPW storage, chemical batching and effluent storage. Built-in temperature compensation provides 1% accuracy FS without drift. It is available with either ½-in. union or ¾-in. NPT threaded connections, and can be submersed in process vessels. George Fischer; 800/854-4090;

Pressure Meter
PAXDP Dual Process Input Meter lets users monitor, scale and display two independent pressure input sources, perform a math function, and display the resulting value. It can display input values and a resultant value based upon the two input values. With optional plug-in cards, it can generate alarm triggering, retransmit analog output, or send data to various industrial communication protocols. Red Lion Controls; 717/ 767-6511;

Old Sensor Still Kicking
The 10-year-old DPharp digital pressure sensor still has an over-pressure protection system that can withstand 2,300 psi pressure applied to the high-pressure port, low-pressure port, or both ports simultaneously without affecting performance or accuracy. Over-pressure events commonly occur when manifolds are sequenced incorrectly, tanks are washed down with high-pressure hoses, or other pressure systems fail. Yokogawa; 678/423-2438;

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