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
| Housing | L- or T-shaped housing |
| Measuring ranges (kPa) [e.max.] | 130 500 3000 10000 |
| Weight per kg (without indicator) | 1.7 - 17 |
| Accuracy | ± 0.2% of the measurement range set as standard. |
| Materials in contact with the process | Stainless steel 316 L, Stainless steel 316 L + Gilding |
| Case materials | Low-copper aluminum alloy with polyester coating (standard), or 316 stainless steel (optional). |
| Membrane materials | Stainless steel 316 L Hastelloy-C |
| Stability | ±0.2% of full scale for 10 years |
| Elevation / Deletion | From -100 to +100% of maximum scale |
| Scale setting range | From 1 to 1/16 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 45 V 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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Diaphragm seal absolute pressure transmitter - FKH F
Reference : FKH F
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