UNIK 5900 SIL – High-Accuracy Pressure Sensor with SIL Certification

from 1,200.20 €
plus VAT

  • Pressure ranges from 2 to 700 bar (30 to 10,000 psi)
  • Non-linearity, hysteresis, and repeatability up to ±0.04% Full Scale (FS), Best Straight Line (BSL)
  • Stainless steel construction
  • Integrated terminal housing with long or short body options
  • Frequency response up to 3.5 kHz
  • Certifications for use in hazardous (explosive) areas
  • SIL certification available – for non-SIL certified products, refer to the standard UNIK 5900 datasheet, 920-582#

Datasheet
Add to your Quote List

The UNIK 5900 SIL is the safety-certified version of the proven UNIK 5000 platform. Specifically developed for demanding and safety-critical applications in the process industry, as well as oil and gas sectors, this sensor is SIL2-certified according to IEC 61508. It combines wide pressure ranges, excellent long-term stability, flexible configurability, and robust construction – making it ideal for continuous use in harsh environments.

Key Features:

  • Pressure ranges from 2 to 700 bar (30 to 10,000 psi)
  • Total accuracy (non-linearity, hysteresis, repeatability) up to ±0.04% FS (Best Straight Line)
  • Stainless steel construction for high media compatibility
  • SIL2 certified according to IEC 61508:2010
  • Integrated terminal housing – available with short or long body
  • Frequency response up to 3.5 kHz
  • 4–20 mA output (2-wire)
  • Wide selection of electrical and pressure connectors (e.g., G1/2, 1/2″ NPT)
  • Operating temperature range: –40 °C to +125 °C
  • Optional explosion-proof certifications (ATEX, IECEx, FM)

Special Features & Benefits:

  • Fast response times due to high frequency range
  • Suitable for aggressive media in harsh environments
  • Explosion-proof, flameproof or intrinsically safe versions available
  • Online configuration and modular design allow custom solutions
  • Optional protection against dust and gas explosions

Typical Applications:

  • Process industry (oil, gas, petrochemical)
  • Safety-related pressure monitoring (SIL applications)
  • High-pressure and vacuum systems
  • Fixed installations requiring explosion protection

Technical Specifications (Excerpt):

Category Values / Options
Gauge ranges 2 to 50 bar
Absolute ranges 2 to 700 bar
Overpressure limit Up to 1.5 × FS
Long-term stability ±0.05% FS / year (typical)
Power supply 7–28 V DC
Output signal 4–20 mA, 2-wire
Zero/span adjustment range ±5% FS
Ingress protection IP66 / IP67 depending on configuration
Media compatibility Stainless steel 316L, Hastelloy C276 (depending on range)
Certifications ATEX, IECEx, FM, CE, RoHS, SIL2
Temperature compensation ±0.5% FS over –10 °C to +50 °C (Premium)

Performance Grades & Accuracy:

Performance Grade Accuracy (BSL) Temperature Error (–10 °C to +50 °C)
Industrial ±0.2% FS ±0.75% FS
Improved ±0.1% FS ±0.50% FS
Premium ±0.04% FS ±0.50% FS
Main Product Variant

PTX: 4-20 mA Pressure Transmitter
Product Series

5: UNIK 5000
Diameter and Material

60mm Stainless Steel 316L Female Conduit with Terminal Compartment
Electrical Connector

B: M20 Female Conduit with Terminal Compartment
J: 1/2” NPT Female Conduit with Terminal Compartment
Electronics Option

2: 4 to 20 mA 2-wire (PTX)
Compensated Temperature Range

TA: -10 to +50 °C (14 to +122 °F), TB: -20 to +80 °C (-4 to +176 °F), TC: -40 to +80 °C (-40 to +176 °F), TD: -40 to +125 °C (-40 to +257 °F)
Accuracy

A1: Industrial, A2: Improved, A3: Premium
Calibration

CC: Full Thermal
Hazardous Area Approval

H0: None, H1: IECEx/ATEX Intrinsically Safe ‘ia’ Group IIC, H2: IECEx/ATEX Intrinsically Safe ‘ia’ Group I, H3: IECEx/ATEX Protected by Enclosure Group IIIC, H4: IECEx/ATEX Flameproof Group IIC, H7: FM (C & US) Dust Ignition Proof, Groups IIIC/EFG, H8: FM (C & US) Flameproof/Explosion Proof, Groups IIC/ABCD, HA: IECEx/ATEX Intrinsically Safe ‘ia’ Groups I/IIC [H1 + H2], HT: IECEx/ATEX/FM (C & US) Flameproof/Explosion Proof Groups IIC/ABCD [H4 + H8]
Pressure Connector

PM: G1/2 Female, PN: G1/2 Male, PP: 1/2 NPT Female, PR: 1/2 NPT Male, RM: G1/2 Female Long Version, RN: G1/2 Male Long Version, RP: 1/2 NPT Female Long Version, RR: 1/2 NPT Male Long Version






UNIK 5900 SIL – High-Accuracy Pressure Sensor with SIL Certification
Technical advice: 03303 / 50 40 66

Technical advice for this product


    In accordance with the General Data Protection Regulation (GDPR), we are obliged to inform you about the collection of data. We meet this obligation by referring to our privacy notice.



    UNIK 5900 SIL – High-Accuracy Pressure Sensor with SIL Certification

    from 1,200.20 €
    plus VAT
    UNIK 5900 SIL – High-Accuracy Pressure Sensor with SIL Certification
    • Pressure ranges from 2 to 700 bar (30 to 10,000 psi)
    • Non-linearity, hysteresis, and repeatability up to ±0.04% Full Scale (FS), Best Straight Line (BSL)
    • Stainless steel construction
    • Integrated terminal housing with long or short body options
    • Frequency response up to 3.5 kHz
    • Certifications for use in hazardous (explosive) areas
    • SIL certification available – for non-SIL certified products, refer to the standard UNIK 5900 datasheet, 920-582#

    Datasheet
    Add to your Quote List

    The UNIK 5900 SIL is the safety-certified version of the proven UNIK 5000 platform. Specifically developed for demanding and safety-critical applications in the process industry, as well as oil and gas sectors, this sensor is SIL2-certified according to IEC 61508. It combines wide pressure ranges, excellent long-term stability, flexible configurability, and robust construction – making it ideal for continuous use in harsh environments.

    Key Features:

    • Pressure ranges from 2 to 700 bar (30 to 10,000 psi)
    • Total accuracy (non-linearity, hysteresis, repeatability) up to ±0.04% FS (Best Straight Line)
    • Stainless steel construction for high media compatibility
    • SIL2 certified according to IEC 61508:2010
    • Integrated terminal housing – available with short or long body
    • Frequency response up to 3.5 kHz
    • 4–20 mA output (2-wire)
    • Wide selection of electrical and pressure connectors (e.g., G1/2, 1/2″ NPT)
    • Operating temperature range: –40 °C to +125 °C
    • Optional explosion-proof certifications (ATEX, IECEx, FM)

    Special Features & Benefits:

    • Fast response times due to high frequency range
    • Suitable for aggressive media in harsh environments
    • Explosion-proof, flameproof or intrinsically safe versions available
    • Online configuration and modular design allow custom solutions
    • Optional protection against dust and gas explosions

    Typical Applications:

    • Process industry (oil, gas, petrochemical)
    • Safety-related pressure monitoring (SIL applications)
    • High-pressure and vacuum systems
    • Fixed installations requiring explosion protection

    Technical Specifications (Excerpt):

    Category Values / Options
    Gauge ranges 2 to 50 bar
    Absolute ranges 2 to 700 bar
    Overpressure limit Up to 1.5 × FS
    Long-term stability ±0.05% FS / year (typical)
    Power supply 7–28 V DC
    Output signal 4–20 mA, 2-wire
    Zero/span adjustment range ±5% FS
    Ingress protection IP66 / IP67 depending on configuration
    Media compatibility Stainless steel 316L, Hastelloy C276 (depending on range)
    Certifications ATEX, IECEx, FM, CE, RoHS, SIL2
    Temperature compensation ±0.5% FS over –10 °C to +50 °C (Premium)

    Performance Grades & Accuracy:

    Performance Grade Accuracy (BSL) Temperature Error (–10 °C to +50 °C)
    Industrial ±0.2% FS ±0.75% FS
    Improved ±0.1% FS ±0.50% FS
    Premium ±0.04% FS ±0.50% FS
    Main Product Variant

    PTX: 4-20 mA Pressure Transmitter
    Product Series

    5: UNIK 5000
    Diameter and Material

    60mm Stainless Steel 316L Female Conduit with Terminal Compartment
    Electrical Connector

    B: M20 Female Conduit with Terminal Compartment
    J: 1/2” NPT Female Conduit with Terminal Compartment
    Electronics Option

    2: 4 to 20 mA 2-wire (PTX)
    Compensated Temperature Range

    TA: -10 to +50 °C (14 to +122 °F), TB: -20 to +80 °C (-4 to +176 °F), TC: -40 to +80 °C (-40 to +176 °F), TD: -40 to +125 °C (-40 to +257 °F)
    Accuracy

    A1: Industrial, A2: Improved, A3: Premium
    Calibration

    CC: Full Thermal
    Hazardous Area Approval

    H0: None, H1: IECEx/ATEX Intrinsically Safe ‘ia’ Group IIC, H2: IECEx/ATEX Intrinsically Safe ‘ia’ Group I, H3: IECEx/ATEX Protected by Enclosure Group IIIC, H4: IECEx/ATEX Flameproof Group IIC, H7: FM (C & US) Dust Ignition Proof, Groups IIIC/EFG, H8: FM (C & US) Flameproof/Explosion Proof, Groups IIC/ABCD, HA: IECEx/ATEX Intrinsically Safe ‘ia’ Groups I/IIC [H1 + H2], HT: IECEx/ATEX/FM (C & US) Flameproof/Explosion Proof Groups IIC/ABCD [H4 + H8]
    Pressure Connector

    PM: G1/2 Female, PN: G1/2 Male, PP: 1/2 NPT Female, PR: 1/2 NPT Male, RM: G1/2 Female Long Version, RN: G1/2 Male Long Version, RP: 1/2 NPT Female Long Version, RR: 1/2 NPT Male Long Version






    Technical advice: 03303 / 50 40 66

    Technical advice for this product


      In accordance with the General Data Protection Regulation (GDPR), we are obliged to inform you about the collection of data. We meet this obligation by referring to our privacy notice.



      Diese Website benutzt Cookies. Wenn du die Website weiter nutzt, gehen wir von deinem Einverständnis aus.
      More info