Absolute pressure measurement
Fields of application
The direct mounting absolute pressure transmitter FKH allows precise measurement of any pressurized gas or fluid, while using a fixed vacuum pressure as a reference.
Features
FKH direct-mounting pressure transmitters in the FCX-AIV family accurately measure absolute pressure and convert it into a directly proportional 4-20 mA output signal. The heart of the measuring element is a micro-capacitive silicon transducer that has proven its worth 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.] | 130 500 3000 |
| Weight per kg (without indicator) | 1,7 |
| Accuracy | ± 0.2% of the measurement range set as standard. |
| Materials in contact with the process | Stainless steel 316L, Stainless steel 316L + Gilding |
| Case materials | Low-copper aluminum alloy with polyester coating polyester coating or 316L stainless steel. |
| Membrane materials | Stainless steel 316L Hastelloy-C |
| Stability | ±0.2% of maximum scale for 10 years (if digit 6 codes "3", "4") |
| 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 |
| Power supply | 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 |
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Absolute pressure transmitter
Absolute pressure transmitters measure the process pressure relative of gasesand liquids from the absolute zero reference point, i.e. perfect vacuum.
Pressure transmitter for industrial application
The digital industrial SIL 2 SIL 3 pressure transmitter for liquid, gas and steam. Continuously measures pressure, flow, level and density. Available in ATEX.
ref : MFC5150x
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Absolute pressure transmitter - FKH
Reference : FKH
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