Pressure Transducers
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Gems Transducers Deliver Top Performance and Value Under Pressure! Excellent Repeatability, Reliability Sensing Ranges from Vacuum to 25,000 psi (-1 to 1,600 bar) Broad Range of Sensing Technologies: • Chemical Vapor Deposition • Sputtered Thin Film • Capacitance • MMS When your applications require exceptional pressure sensing performance and long-life reliability, look to Gems to deliver. From vacuum to 25,000 psig (-1 to 1,600 bar), we’ve got you covered with industry’s largest selection and best choice of technologies. Our capacitance type sensors are ideal for high volume use; sputtered thin film types are the most precise pressure sensors you can buy, and our other types satisfy all requirements in between. Typical Applications • Off Highway Vehicles — Load Weighing Systems and Load Moment Indicating • Natural Gas Equipment — Compressors and Dispensing Equipment • Semiconductor Processing — Wafer Manufacturing • Power Plants — Piping Steam Pressures • Refrigeration — Compressors and Lube Oil Pressure Equipment • Robotics — Factory Automated Equipment • Test & Measurement — Dynamometers, Medical Instrumentation, Wind Tunnels • Barometrics — Altimeter Certification, Weather Stations • HVAC — Compressors, Filter Monitoring, Energy Management • Transportation — Breaking, Compressors, Lifts, Air Conditioning Sputtered Thin Film Types Chemical Vapor Deposition manufacturing methods bond a polysilicon layer to a stainless steel diaphragm at the molecular level to produce a sensor with superior long term drift performance. Common batch processing semiconductor manufacturing methods are used to create a polysilicon strain guage bridge with terrific performance at a very reasonable price. CVD construction offers excellent price/perfomance and is the most popular sensor for OEM applications. PRESSURE TRANSDUCERS Capacitance Types Sputtered Thin Film Type Sputtered film deposition creates transducers with maximum combined linearity, hysteresis and repeatability. Accuracy is as high as 0.08% full scale with long term drift as low as 0.06% full scale per year. Phenomenal performance for critical instruments — Gems sputtered thin film transducers are the jewels of the pressure sensing industry. Capacitance Type Gems manufactures capacitance type pressure sensors for a wide range of high volume OEM and specialty applications. Detecting the capacitance change between two surfaces allows Gems transducers to sense extremely low pressure and vacuum levels. Robust construction allows these units to be used in a wide variety of applications. Coupled with an ASIC, these units provide good price/performance in a host of packaging styles. MMS Type These transducers employ a micromachined silicon (MMS) diaphragm to detect pressure changes. The silicon diaphragm is protected from the media by an oil-filled 316SS isolation diaphragm; they react in tandem to process fluid pressure. MMS sensors utilize common semiconductor manufacturing techniques that allow for high proof pressure, good linearity, great thermal shock performance and stability in a thin sensor package. Page Start Visit www.GemsSensors.com for most current information.

Digital Output Diff. Pressure Current Output Voltage Output Pressure Range Operating Temperatures* Thermal Error per °F relative to Room Long Term Temperature Accuracy Drift (Full (Full Scale (Full Scale, Typ.) Scale/Year) Typ.) Selection Guide Sensor Technology Type Gems Series Number High 15 to 6,000 psig Temperature (1 to 400 bar) & Accuracy 600 to 1,100 hPa/mb 800 to 1,100 hPa/mb 0 to 20 psia Vacuum to 10,000 psig (-1 to 690 bar) 2 to 10,000 psig (0 to 690 bar) High Accuracy PRESSURE TRANSDUCERS Strain Gauge 4700 (Sputtered) Strain Gauge 4000 (Sputtered) Strain Gauge 3100/3200...

1700 Series-Hygienic Pressure Transmitters Pressure Ranges from 100 Millibar to 40 Bar Sanitary or G1 Process Connections Voltage and Current Output Models Temperature Cooling Options Available for 302ºF or 572ºF (150°C or 300°C) Operation The 1700 series features a stainless steel diaphragm with various process connections suitable for dairy and pharmaceutical applications. The 1700 is suitable for both static and dynamic pressure measurement in the ranges from 100 millibar to 40 bar and is available with a choice of electrical outputs and connecctions. Dimensions inch (mm) Fixed Plug to...

Sensors &Controls Use the bold characters from the chart below to construct a product code Pressure Range- Pressure Connection- Filling Liquid- 2 - Food compatible, Mobil DTEFM32 3 - Dairy Pipe Mating Nut4E F - Cable Gland including 2m Cable 1 - Viton® (Supplied with G1" Pressure Port only) Electrical Connections Cable Legend: 4. For Dairy Pipe Mating Nut. 5. Please state media temperature (max 85°C) and mounting Visit www.GemsSensors.com for most current information.

1701 Series-Flush Diaphragm Pressure Transmitters Stanless Steel Wetted Parts with Flush Diaphragm G1/2, G3/4 or G1 Threads and Sanitary Voltage and Current Output Models The 1701 series features a stainless steel flush diaphragm on a threaded process connection making it ideal for slurries, suspended solids in liquids and viscous liquids where recessed diaphragms could become blocked. The 1701 is suitable for both static and dynamic pressure measurement in the ranges from 15 PSI to 5802 PSI (1 bar to 400 bar) and is available with a choice of electrical outputs and connections....

Sensors &Controls Use the bold characters from the chart below to construct a product code Pressure Range- Pressure Connection- Filling Liquid- 2 - Food compatible, Mobil DTEFM32 Special Versions Electrical Connection F - Cable Gland including 2m Cable Diaphragm Material Electrical Connections Cable Legend: Visit www.GemsSensors.com for most current information.

1702 Series-Fixed Range Low Pressure Transmitters Pressure Ranges from 40 millibar to 1 Bar 316 S/S Diaphragm Voltage and Current Output Models Choice of Enclosures and Pressure Fittings The Gems 1702 low range pressure transmitter is ideal for pneumatics, process control and chemical processes. Featuring a 316 S/S diaphragm and Viton® o-ring the 1702 is compatible with many corrosive medias. A choice of process connections makes the units suitable for direct pipe mounting whilst optional eletrical outputs and connections allow interfacing with most systems. Specifications 100 mbar to 1 bG,...