Average temperature measurement
Prothermo NMT539

Prothermo NMT539 ©Endress+Hauser
Prothermo NMT539 ©Endress+Hauser

High precision average temperature measurement

Prothermo NMT539 is an intelligent HART signal converter, with a combined average temperature sensor and water bottom interface probe. For average temperature measurement consists of precision multispot Pt100 elements. The NMT539 is a highly capable solution for constant average temperature data and water interface data via HART communication. For custody transfer and accurate inventory measurement, it is best suited connected to Proservo NMS5 or Tank Side Monitor NRF590 with Micropilot.

  • Benefits

    • Intrinsically safe device allowing for the safest electrical configuration possible

    • Available in four different versions based on customer requirements:
      Converter only
      Converter and temperature probe
      Converter and water bottom probe
      Converter,...

  • Field of application

    For precision average temperature and water bottom measurement.

    • Process connection: Flanges

    • Temperature: -40 to +100°C (-40 to +212°F)

    • Measuring distance: 40m (131.2ft)

    • Accuracy: ± 0.1°C

    • International explosion protection certificates

Features and specifications

Back

Details

  • Measuring principle

    Resistance Temperature Detector

  • Characteristic / Application

    High precision average temperature measurement, with optional capacitance water bottom sensor

  • Max. immersion length on request

    40 m (131.2 ft)

  • Process connection

    JIS10K 50A RF

    ASME 2" 150 lb RF

    DN50 PN10 RF

    JPI 2" 150 lb RF

  • Operating temperature range

    Standard:

    -40 °C...100 °C

    Optional:

    -55 °C...235 °C

    Water Bottom spec.:

    -40 °C...100 °C

    Cyrogenic:

    -170 °C...60 °C

  • Max. process pressure (static)

    0 bar...0.5 bar

    (0 psi...7.25 psi)

  • Accuracy

    +/- 0.1 °C

  • Ex - approvals

    ATEX, FM, CSA, IEC Ex, TIIS, NEPSI

  • Measuring principle

    Servo / Float Tank Gauging

  • Characteristic / Application

    High precision average temperature measurement, with optional capacitance water bottom sensor

  • Supply / Communication

    2-wire (HART)

  • Accuracy

    +/- 0.1 °C

  • Ambient temperature

    -40 °C ... 85 °C
    (-40 °F ... 185 °F)

  • Process temperature

    Standard:
    -40 °C...100 °C
    (-40 °F...212 °F)

    Optional:
    -55 °C...235 °C
    (-67 °F...455 °F)

    Water Bottom spec.:
    -40 °C...100 °
    (-40 °F...212 °F)

    Cyrogenic:
    -170 °C...60 °C
    (-274 °F...140 °F)

  • Process pressure absolute / max. overpressure limit

    0 bar ... 0.5 bar
    (0 psi ... 7.25 psi)

  • Main wetted parts

    316 SUS

  • Process connection

    JIS10K 50A RF
    ASME 2" 150 lb RF
    DN50 PN10 RF
    JPI 2" 150 lb RF

  • Max. measurement distance

    40 m (131.2 ft)

  • Communication

    digital HART

  • Certificates / Approvals

    ATEX, FM, CSA, IEC Ex, TIIS, NEPSI

  • Application limits

    Heating coil or other mechanical obstruction in tank: may affect total length

Documents / Manuals / Software

Accessories / Spare parts

Nr
Order code
Specification
  • 11
    • Nr 11 Order code 52017174

      O-ring, terminal box, small, CR

      Size: D100mm, d3mm. Material: CR (Chloroprene Rubber). Usage: NMT539 Converter.

    • Nr 11 Order code 017803-0043

      O-ring, electric cover, NBR

      Size: D88mm, d3mm. Material: NBR. Part: electric box, NMT. Usage: NMT532/NMT535/NMT536/NMT538/NMT539.

    • Nr 11 Order code 017803-0044

      O-ring, terminal housing, NBR

      Size: D73mm, d3mm. Material: NBR. Part: terminal box, NMT. Usage: NMT532/NMT535/NMT536/NMT538/NMT539.

  • 21
    • Nr 21 Order code 52017175

      Cover, connection housing

      NMT Junction Box cover, Material: aluminium casting. Colour: E+H gray. Usage: NMT539 converter retro fit.

    • Nr 21 Order code 017802-0008

      Cover, terminal box, Alu, NMT

      NMT terminal box cover, M73. Color: E+H gray. Material: aluminium casting. Usage: NMT532/NMT535/NMT536/NMT539.

    • Nr 21 Order code 70106024

      Cover, E-housing NMT532/9, M88 long type

      NMT terminal Box cover, M88, Color: E+H gray. Material: aluminium casting. Usage: NMT532/NMT539.

  • 31
    • Nr 31 Order code 70108674

      NMT539Module, Exia, Temp.+WB 1m, v.186

      Temperature, water bottom 1m, HART ID: v.186. Usage: NMT539.

    • Nr 31 Order code 70108675

      Module assembly, FM, Temp., WB 2m v.185

      Temperature, water bottom 2m, HART ID: v.185. Usage: NMT539.

    • Nr 31 Order code 70108676

      Module assembly, FM, Temp., WB 1m v.185

      Temperature, water bottom 1m, HART ID: v.185. Usage: NMT539.

    • Nr 31 Order code 70108677

      NMT539/532Module,Exia, Temperature,v.184

      HART ID: v.184. Usage: NMT532/NMT539.

    • Nr 31 Order code 70108679

      NMT539Module, Exia, Temp.+WB 2m, v.186

      FM approval. Temperature, water bottom 2m, HART ID: v.186. Usage: NMT539.

    • Nr 31 Order code 71086630

      NMT539Module, Exia,W&M,Temp.+WB 1m,v.186

      Temperature, water bottom 1m, weight and measure, HART ID: v.186. Usage: NMT539.

    • Nr 31 Order code 71086631

      NMT539Module,Exia,W&M,Temperture, v.184

      Temperature, weight and measure, HART ID: v.184. Usage: NMT539.

    • Nr 31 Order code 71086632

      NMT539Module, Exia,W&M,Temp.+WB 2m,v.186

      Temperature, water bottom 2m, weight and measure, HART ID: v.186. Usage: NMT539.

    • Nr 31 Order code 71114398

      NMT539Module,TIIS Exd[ia],Temp.,v.184

      NMT539 module, only temp. Usage: NMT539.

    • Nr 31 Order code 71114400

      NMT539Module,TIIS Exd[ia],T+WB1m,v.186

      NMT539 module, temp. + water bottom 1m. Usage: NMT539.

    • Nr 31 Order code 71114401

      NMT539Module,TIIS Exd[ia],T+WB2m,v.186

      NMT539 module, temp. + water bottom 2m. Usage: NMT539.

  • 34