Differential pressure measurement with diaphragm seals
Fields of application
A pressure transmitter with diaphragm seal can be used to measure liquid flow, gas flow, steam flow, fluid level in a tank, fluid density or pressure at low or high temperatures.
Benefits
The FKB, FKD and FKM pressure transmitters in the FCX-AIV family accurately measure gauge pressure, differential and absolute gauge pressure respectively, and convert them into a directly proportional 4-20 mA output signal. At the heart of the measuring element is a micro-capacitive silicon transducer with a proven track record in the process industry. The digital signal processing carried out by the electronics unit ensures outstanding accuracy and stability. The FCX-AIV family of pressure transmitters complies with integrity and safety levels SIL 2 (HFT=0) and SIL 3 (HFT=1) in accordance with standards IEC 61508 and IEC 61511.
| Housing | L- or T-shaped housing |
| Measuring ranges (kPa) [e.max.] | 32 130 500 3000 20000 |
| Weight per kg (without indicator) | 9-19 |
| Accuracy | ± 0,065 % |
| Materials in contact with the process | Stainless steel 316L, Hastelloy-C, Monel, Tantalum, Titanium, Zirconium |
| Case materials | Low-copper aluminum alloy with polyester coating or 316L stainless steel |
| Membrane materials | Stainless steel 316L Hastelloy-C Monel Titanium Zirconium Stainless steel 316L and Gilding |
| Stability | ±0.2% of full scale for 10 years |
| Elevation / Deletion | From -100 to +100% of maximum scale |
| Scale setting range | 1 to 1/100 of maximum scale |
| Measurement cycle | 40 ms |
| Communication protocol | HART™ 7 communication protocol |
| Process temperature | From +40° to +120°C (versions for higher temperatures are available) |
| Ambient temperature | From -40° to +85°C |
| Supply voltage | 10.5 to 45V DC |
| Output signal / Load resistance | 4-20 mA / 250 Ω typical |
| Damping | Configurable between 0.04 and 32 secs |
| Zero and span adjustment | Via external sensor screw, local three-button indicator or HART™ protocol |
| Electrical connections | M20x1.5" / 1/2 - 14 NPT / Pg13.5 |
| Options | Digital indicator, degreasing treatment, oxygen service, chlorine service, additional stainless steel identification plate |
Certificate: Declaration of conformity UKCA pressure transmitters series FCX-AIV-V6
Certificates DownloadCarrousel: 9 essential questions to ask when choosing your industrial pressure transmitter
Carousel DownloadCarrousel: Do the cold and extreme temperatures of your processes complicate your pressure measurements?
Carousel DownloadCarrousel: Do the hot and extreme temperatures of your processes complicate your pressure measurements?
Carousel DownloadCarrousel: 5 factors to limit pressure transmitters failures on your installations
Carousel Downloaddatasheet : pressure transmitters with diaphragm seal(s) FCX-AIV V6 FKB FKD FKM
Specifications DownloadTechnologies
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Diaphragm seal differential pressure transmitter - FKD
Reference : FKD
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