
High gauge pressure measurement
Fields of application
Designed for high-pressure measurement up to 150 MPa for wells, injection lines, subsea installations, high-pressure equipment and testing.
Features
The FKR high-pressure transmitter is an intelligent transmitter for measuring very high relative pressures, up to 150 MPa (1500 bar, 21,750 psi or 150,000 kPa). It is based on a piezoresistive silicon transducer combined with digital signal processing, guaranteeing high accuracy and excellent long-term stability. Designed to meet the extreme demands of multiple industrial applications, it is perfectly suited to pressure monitoring in wellheads, injection lines, hydraulic presses, plastic injection machines, hydrostatic testing, chemical reactors. Thanks to its HART™ 7 compatibility, no-open local configuration options and robust materials, the FKR pressure transmitter offers reliability, safety and flexibility in the harshest environments.
Type | Intelligent 4-20 mA Pressure transmitter with HART™ 7 protocol | |
Housing | L- or T-shaped housing | |
Measuring ranges [e.max.] | From 9.375 to 150 MPa | |
Measurement limit | From -100 kPa to 150 MPa | |
Permissible overpressure | 225 MPa | |
Weight per kg (without indicator) | 1,5 | |
Accuracy | From 1/10 to 1/1 of URL: ±0.065 % of span From 1/16 to 1/10 of URL: ±(0.015 + 0.05 × 0.1 × URL/span) % of span | |
Materials in contact with the fluid | Membrane | Inconel® 625 (with or without gold plating) |
Connection | Inconel® 625 | |
Sensor body | Inconel® 625 | |
Non-contact materials | Housing | Cast aluminum (polyester coating) or 316L stainless steel |
Filling fluid | Mineral oil | |
Stability | ±0.1% of upper range limit for 5 years | |
Elevation / Deletion | Zero offset: ±0.2% of max. scale (URL) | |
Scale setting range | From 1 to 1/16 of maximum scale | |
Measurement cycle | 40 ms | |
Communication protocol | HART™ 7 communication protocol only | |
Response time | Time constant: 80 ms Dead time: approx. 60 ms Total time ≈ 140 ms | |
Process temperature | From -40 to 100°C | |
Ambient temperature | From -40 to +85°C -20 to +80°C (with optional LCD unit) -40 to +60°C (with optional lightning arrester) | |
Storage temperature | From -40 to +90°C | |
Temperature effects | Zero drift: ±(0.075 + 0.125 × URL/span) % / 28 °C Total effect: ±(0.095 + 0.0125 × URL/span) % / 28 °C | |
Power supply | 10.5 to 45 V DC | |
Output signal / Load resistance | 4-20 mA / 250 Ω typical + HART™ (NAMUR NE 43 compliant) | |
Dielectric strength | 500 V AC for 1 min (between circuit and earth) | |
Insulation resistance | > 100 MΩ at 500 V DC (between circuit and ground) | |
Damping | Configurable from 0.04 to 32 seconds | |
Zero and span adjustment | Via external sensor screw, local three-button indicator or HART™ protocol | |
Electrical connections | M20×1.5" / 1/2 -14 NPT / Pg13.5 | |
Assembly | Direct or Ø60.5 mm tube mounting (U-bolt stainless steel 304L/316L) | |
Process connection | AutoClave F250C (F) or F250C (M) (adapter) | |
Compatibility | CEM : EN 61326-1, EN 61326-2-3, EN 61326-3-1 ATEX/ IECEx / cCSAus : Intrinsically safe (Ex ia), Explosion-proof enclosure (Ex d), XP/IS/NI Division 1 and 2 | |
Options | Digital indicator, degreasing treatment, oxygen service, chlorine service, additional stainless steel identification plate |
Gauge pressure transmitter - high pressure - 150 MPa - FKR
Reference : FKR-07