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Model 670F High Gauge Pressure Sensors Description Model 670F pressure sensor (PS) is developed for high pressure applications. For high pressure application purpose (^ 250bar), this PS is designed of mono-block structure, i.e., its pressure diaphragm and sensor body are made from one piece of stainless steel. As a result, there is no O-ring integrated inside the sensor body to seal the pressure medium. Therefore, thanks to its mono-block structure, the model 670F PS offers excellent reliability in application with high pressures. As one of the 600F-series PS, the model 670F makes use of the metal foil strain gauges from BCM SENSOR in order to form its Wheatstone bridge circuit. One of the advantages of using metal foil strain gauges is that all the 600F-series PS possesses the lowest temperature effect compared to all the other PS from BCM SENSOR. The 670F PS is mostly used to build high pressure transmitters by integrating both a housing at its backside containing an SSC (sensor signal conditioner) and a connector for power supply and signal output. For a specific application of high volume demand, on request this PS can have its mechanical interfaces. i.e., the threads of process connection and/or its threads for the SSC housing, customized to application needs. • reliable metal foil strain gauge technology • accuracy up to 0.25%fs • compensated temperature range: -20 ~ +85°C • excited by either constant voltage or current source Applications • industrial automation • hydraulic systems • water jet cutting machines • compressors • process control systems Environmental Specifications • position effect: < 0.1% of zero offset shift in any direction • vibration effect: no change at 10 g (RMS), 20~2000 Hz • shock: 100 g, for 10 millisecond Electrical Interface Note: all dimensions are in mm Industriepark Zone 4, Brechtsebaan 2 B-2900 Schoten - Antwerpen, BELGIUM website: www.bcmsensor.com email: sales@bcmsensor.com

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SENSOR Technical Data Parameters General conditions for measurements: media temp. = 25°C ±1°C, ambient temp. = 25°C ±1°C, humidity = 50%RH ±10%RH, barometric pressure: 86~106 kPa, vibration = 0.1 g (1m/s/s) max. Notes: 1. The pressure medium should be compatible with wetted parts material and pressure diaphragm. 2. For customized pressure ranges, consult BCM. 3. “fs” refers to full scale pressure or rated pressure. 6. Calculated as a rate of output change between -20°C and +85°C, and normalized by the output at 25°C, when the sensor is not temperature compensated. 7. Response time for a 0...

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SENSOR Ordering Information Iposition (pos.) 1: model 670F |pos. 2: pressure ranges and references 400bar G 2500bar G G: gauge pressure Note: In case of the conditioned output signal, indicate both min. and max. measuring pressure, e.g., 0/400bar. pos. 3: output signal 2mV/V (standard) 10%/90%Vs = 10%/90%Vs ratiometric, e.g., if power supply Vs is 5Vdc, o/p is 0.5~4.5V. I2C SPI ZACwire I [pos. 4: accuracy | 0.25%fs 0.5%fs (standard) Ipos. 5: bridge resistance I 350Q 700Q (standard) 1000Q 2000Q Note: In case of the conditioned output signal, this option is neglectable. pos. 6: mechanical...

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