Endress+Hauser Prothermo NMT 539 Technical Information
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Endress+Hauser Prothermo NMT 539 Technical Information

Endress+Hauser Prothermo NMT 539 Technical Information

Intrinsically safe multi-signal converter with precision average temperature and water bottom sensor for inventory control and custody transfer applications
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Technical Information
TI 042N/08/en/04.06
Prothermo
NMT 539
Intrinsically safe multi-signal converter with
precision average temperature and water bottom
sensor for inventory control and custody transfer
applications
Applications
The Prothermo NMT 539 is an intelligent
HART signal converter, with a combined
average temperature sensor and water
bottom interface probe. For average
temperature measurement, it consists of
precision multi-spot Pt100 elements. The
NMT 539 is a highly capable solution for
a variety of tank gauging applications
and provides both constant average
temperature data and water interface
data via HART communication. For
accurate inventory measurement, it is
best suited connected to
Endress+Hauser's Proservo NMS 53x or
Tank Side Monitor NRF 590 with
Micropilot radar.
Features
•
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, temperature and water
bottom probe
•
Converter is compatible with various
element types in third party
manufacturer temperature probes.
•
Compatible with Endress+Hauser's
user friendly ToF (Time-of-Flight) tool.
•
Variety of process connections and
cable entries available to meet
worldwide classifications.

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Summary of Contents for Endress+Hauser Prothermo NMT 539

  • Page 1 Applications Features • The Prothermo NMT 539 is an intelligent Intrinsically safe device allowing for the HART signal converter, with a combined safest electrical configuration possible. • average temperature sensor and water Available in four different versions bottom interface probe.

  • Page 2: Product Type

    Prothermo NMT 539 Product type Measurement system The Prothermo NMT 539 is available in four different versions: • Converter only • Converter + Average temperature probe • Converter + Water bottom (Capacitance) sensor • Converter + Average temp probe + Water bottom sensor...

  • Page 3: System Diagram

    ER RO R NRF560 NMT 539 Converter + The Prothermo NMT 539 is the successor of the former NMT 535 Ex i version. For proper Temp. version migration, the NMT 539 has inherited all the functionality and specifications of the NMT 535, including process connections, cable entries and wiring method.
  • Page 4 (please see the NRF 590 technical information). All gathered data in the interface unit is sent to inventory management software, such as Endress+Hauser's FuelsManager or NXS-310 (MDP-II program), or directly sent to the customer's specific DCS or PLC. Endress+Hauser...
  • Page 5 NMT 539 Converter + Temp. version has only Pt100 elements installed. The element types above can be utilised in third party temperature probes, such as the Endress+Hauser 9909, 1700 or Weed Beacon MWR. Other manufacturer multi-resistant and multi-spot average temperature probes may be compatible.

  • Page 6: Installation

    DIN DN50 PN 10RF... mild carbon Different sizes and materials can be provided depending on the installation conditions. Please consult your Endress+Hauser representative for the most suitable solution. The installation height An additional feature of the NMT 539, the height adjuster, can be used to adjust installation height adjuster of the NMT 539 within ±180 mm (7") from original height.
  • Page 7 Consider the required bottom clearance when ordering the NMT 539. Please see the recommended bottom clearance in the above illustration and/or consult your Endress+Hauser representative for further information. When ordering the NMT 539 with special element position and bottom clearance, please refer to "Ordering Information,"...
  • Page 8 When ordering the NMT 539, please refer to "Ordering Information," section 80, Element Spacing. Select 4, Custom element position and spacing. This allows you to choose the desired element position and intervals. Consult with your Endress+Hauser representative for further assistance. Mounting attachment A: "No installation material" and C: "Low profile anchor"...

  • Page 9: Technical Specifications

    Prothermo NMT 539 Technical specifications General specifications Manufacturer Endress+Hauser Japan Designation Prothermo NMT 539 Function RTD average temperature signal to HART conversion RTD average temperature measurement + HART converter Capacitance water interface measurement + HART converter Average temperature & Water interface measurement + HART...
  • Page 10 Prothermo NMT 539 Water Bottom (capacitance) sensor specifications Sensor material SUS 316 (center rod SUS 304 & PFA protected) Operation range 1m (3.3 ft) and 2m (6.6 ft) Operation temperature ° ° -20 ...+100 C (-4 ...+212 Data transmission 2.5mm coaxial cable & common ground...
  • Page 11 Prothermo NMT 539 Performance New electronics The Prothermo NMT 539 employs a completely new electronic module compared to the previous NMT 535. The electronics achieve restrictive free multi-drop HART loop configuration with other sensors for specific tank gauging applications. NMT 539...
  • Page 12 RTD temperature signal from the capacitance WB signal on coaxial cable. The wiring of the temperature signal is exactly the same as Endress+Hauser's 1700, 9909 and other RTD probes. The coaxial (WB) cable must be routed from the existing auxiliary capacitance to the HART (or 4 - 20 mA) converter via NMT 539's terminal compartment.
  • Page 13 Prothermo NMT 539 Type 2: Converter only version (for the Varec 1700 win M20 threaded connection) Terminal Box of 1700 series RTD probe 168mm 32mm Lock nut Type 2 Measuring function Basic functionality remains the same, but the special M20 threaded connection allows the NMT 539 converter to fit directly onto the existing terminal housing of the 1700.
  • Page 14 Prothermo NMT 539 Converter + average temperature probe version 104mm 360mm adjustable installation height 15mm Flexible tube depends on the tank height Measuring function The NMT 539 converter and average temperature probe is the direct replacement for the former NMT 535 Ex i and 537. The W&M approved high accuracy temperature device is well suited for both custody transfer and inventory control applications.
  • Page 15 Measuring function The Prothermo NMT 539 is a temperature measurement device, water interface measuring capacitance probe and HART signal converter. The capacitance probe is important for the detection of water below product (mainly crude oil) and determines water level by sensing the dielectric constant of the product in the tank.
  • Page 16 Measuring function The Prothermo NMT 539 is available in the ultimate all-in-one "Converter + Temp. + WB" version. Both temperature and WB data are fully accessible on one pair of HART communication lines. All of the necessary parameters can be configured via Proservo NMS 53x, the Tank Side Monitor NRF 590 or the ToF tool.

  • Page 17: Terminal Connection

    NMT 539 has convenient Daisy chain HART loop terminals that enable NMT 539 to be a terminal junction of HART multi-drop instruments. NMS 53x terminal Since the Prothermo NMT 539 is an intrinsically safe instrument, the terminal connection to the Ex i side on HART connection is allowed on the NMS terminal housing. Port_B+ 4 ...
  • Page 18 Prothermo NMT 539 NRF 590 terminal Note! The Tank Side Monitor NRF 590 has three sets of IS HART terminals. These three pairs are looped internally. Caution! Do not connect signal HART lines from NMT 539 to terminal 30 & 31. They are designed to supply drive power of FMR 53x series only.

  • Page 19: Certificates And Approvals

    Prothermo NMT 539 Certificates and approvals CE approvals By attaching the CE - mark, Endress+Hauser Japan confirms that the instruments pass the required tests. Ex approvals See order information W & M approval To be announced External standards and Based on IEC 61326, Immunity according to table A-1...

  • Page 20: Ordering Information

    Prothermo NMT 539 Ordering Information Prothermo NMT 539 Protection class Protection class IP 65 IS class1, Div.1, Gp. CD, FM... pending Class1, Div.1, Gp. CD (Exi), CSA A Ex ia IIB T4, TIIS... pending B EEx ia IIB T2 -T6, ATEX...
  • Page 21 Prothermo NMT 539 Element spacing 1 2000mm (79") 2 1500mm (59") 3 1000mm (39") 4 Custom element position & spacing 5 3000mm (118") 6 Spacing not selected 7 UK standard ( converter only) 9 Special version 1 to 30m (30,000mm) probe length (below flange to end of probe) A ...mm probe Length...
  • Page 22 Prothermo NMT 539 Accessories Specific anchoring method only designed for converter & temperature probe version. Caution! Anchor weight (Tall profile) Mounting Installation of anchor weight will cause element position #1 (the lowest temperature measurement Attachment option: B position) to be raised approximately 500mm (20") from the tank floor.
  • Page 23 Prothermo NMT 539 Wire hook, Top anchor Mounting Attachment Material option: D JIS SS400 mild carbon steel) Weight: I-bolt: JIS SS400 mild carbon steel) Weight approx. 1.5kg 150 2mm (5.91"±0.08") ± ± 2mm (2.76"±0.08") 200 2mm (7.87"±0.08") ± Actual tensioning can be completed with SUS316 stranded 3mm diameter tension wire between Wire hook and Top anchor.
  • Page 24 Prothermo NMT 539 Appendix Stainless Steel The stainless steel material used in products of Endress + Hauser Japan normally have expressions according to Japanese industrial standards, such as JIS or TIIS. Each countries or conversion table regions may have different expressions place to place.
  • Page 25 Prothermo NMT 539 Endress+Hauser Japan Co., Ltd 862-1 Mitsukunugi, Sakaigawa-cho, Fuefuki-shi, Yamanashi 406-0846 Japan Phone: ++81-55-266-4964 Fax: ++81-55-266-4969 www.jp.endress.com Technical Information TI042N/08/EN/04.06...

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